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1 IBM System Storage N series Release Notes for Use with DataFabric Manager Server 4.0.2, Supporting Operations Manager, Protection Manager and Provisioning Manager GC NA _A0

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3 Copyright and trademark information This section includes copyright and trademark information, and important notices. Copyright information Copyright NetApp, Inc. All rights reserved. Printed in the U.S.A. Portions copyright 2010, 2011 IBM Corporation. All rights reserved. US Government Users Restricted Rights - Use, duplication or disclosure restricted by GSA ADP Schedule Contract with IBM Corp. No part of this document covered by copyright may be reproduced in any form or by any means graphic, electronic, or mechanical, including photocopying, recording, taping, or storage in an electronic retrieval system without prior written permission of the copyright owner. References in this documentation to IBM products, programs, or services do not imply that IBM intends to make these available in all countries in which IBM operates. Any reference to an IBM product, program, or service is not intended to state or imply that only IBM's product, program, or service may be used. Any functionally equivalent product, program, or service that does not infringe any of IBM's or NetApp's intellectual property rights may be used instead of the IBM or NetApp product, program, or service. Evaluation and verification of operation in conjunction with other products, except those expressly designated by IBM and NetApp, are the user's responsibility. No part of this document covered by copyright may be reproduced in any form or by any means graphic, electronic, or mechanical, including photocopying, recording, taping, or storage in an electronic retrieval system without prior written permission of the copyright owner. Software derived from copyrighted NetApp material is subject to the following license and disclaimer: THIS SOFTWARE IS PROVIDED BY NETAPP "AS IS" AND WITHOUT ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE, WHICH ARE HEREBY DISCLAIMED. IN NO EVENT SHALL NETAPP BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES Copyright IBM Corp. 2010, 2011 iii

4 (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. NetApp reserves the right to change any products described herein at any time, and without notice. NetApp assumes no responsibility or liability arising from the use of products described herein, except as expressly agreed to in writing by NetApp. The use or purchase of this product does not convey a license under any patent rights, trademark rights, or any other intellectual property rights of NetApp. The product described in this manual may be protected by one or more U.S.A. patents, foreign patents, or pending applications. RESTRICTED RIGHTS LEGEND: Use, duplication, or disclosure by the government is subject to restrictions as set forth in subparagraph (c)(1)(ii) of the Rights in Technical Data and Computer Software clause at DFARS (October 1988) and FAR (June 1987). Trademark information IBM, the IBM logo, and ibm.com are trademarks or registered trademarks of International Business Machines Corporation in the United States, other countries, or both. A complete and current list of other IBM trademarks is available on the Web at Linux is a registered trademark of Linus Torvalds in the United States, other countries, or both. Microsoft, Windows, Windows NT, and the Windows logo are trademarks of Microsoft Corporation in the United States, other countries, or both. UNIX is a registered trademark of The Open Group in the United States and other countries. NetApp, the NetApp logo, Network Appliance, the Network Appliance logo, Akorri, ApplianceWatch, ASUP, AutoSupport, BalancePoint, BalancePoint Predictor, Bycast, Campaign Express, ComplianceClock, Cryptainer, CryptoShred, Data ONTAP, DataFabric, DataFort, Decru, Decru DataFort, FAServer, FilerView, FlexCache, FlexClone, FlexScale, FlexShare, FlexSuite, FlexVol, FPolicy, GetSuccessful, gfiler, Go further, faster, Imagine Virtually iv IBM System Storage N series: DataFabric Manager Server Release Notes

5 Anything, Lifetime Key Management, LockVault, Manage ONTAP, MetroCluster, MultiStore, NearStore, NetCache, NOW (NetApp on the Web), ONTAPI, OpenKey, RAID-DP, ReplicatorX, SANscreen, SecureAdmin, SecureShare, Select, Shadow Tape, Simulate ONTAP, SnapCopy, SnapDirector, SnapDrive, SnapFilter, SnapLock, SnapManager, SnapMigrator, SnapMirror, SnapMover, SnapRestore, Snapshot, SnapSuite, SnapValidator, SnapVault, StorageGRID, StoreVault, the StoreVault logo, SyncMirror, Tech OnTap, The evolution of storage, Topio, vfiler, VFM, Virtual File Manager, VPolicy, WAFL, and Web Filer are trademarks or registered trademarks of NetApp, Inc. in the United States, other countries, or both. All other brands or products are trademarks or registered trademarks of their respective holders and should be treated as such. NetApp is a licensee of the CompactFlash and CF Logo trademarks. NetApp NetCache is certified RealSystem compatible. Copyright and trademark information v

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7 Notices This information was developed for products and services offered in the U.S.A. IBM may not offer the products, services, or features discussed in this document in other countries. Consult your local IBM representative for information on the products and services currently available in your area. Any reference to an IBM product, program, or service is not intended to state or imply that only that IBM product, program, or service may be used. Any functionally equivalent product, program, or service that does not infringe on any IBM intellectual property right may be used instead. However, it is the user's responsibility to evaluate and verify the operation of any non-ibm product, program, or service. IBM may have patents or pending patent applications covering subject matter described in this document. The furnishing of this document does not give you any license to these patents. You can send license inquiries, in writing to: IBM Director of Licensing IBM Corporation North Castle Drive Armonk, N.Y U.S.A. For additional information, visit the web at: The following paragraph does not apply to the United Kingdom or any other country where such provisions are inconsistent with local law: INTERNATIONAL BUSINESS MACHINES CORPORATION PROVIDES THIS PUBLICATION AS IS WITHOUT WARRANTY OF ANY KIND, EITHER EXPRESS OR IMPLIED, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF NON-INFRINGEMENT, MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE. Some states do not allow disclaimer of express or implied warranties in certain transactions, therefore, this statement may not apply to you. This information could include technical inaccuracies or typographical errors. Changes are periodically made to the information herein; these changes will be incorporated in new editions of the publication. IBM may make Copyright IBM Corp. 2010, 2011 vii

8 improvements and/or changes in the product(s) and/or the program(s) described in this publication at any time without notice. Any references in this information to non-ibm web sites are provided for convenience only and do not in any manner serve as an endorsement of those web sites. The materials at those web sites are not part of the materials for this IBM product and use of those web sites is at your own risk. IBM may use or distribute any of the information you supply in any way it believes appropriate without incurring any obligation to you. Any performance data contained herein was determined in a controlled environment. Therefore, the results obtained in other operating environments may vary significantly. Some measurements may have been made on development-level systems and there is no guarantee that these measurements will be the same on generally available systems. Furthermore, some measurement may have been estimated through extrapolation. Actual results may vary. Users of this document should verify the applicable data for their specific environment. Information concerning non-ibm products was obtained from the suppliers of those products, their published announcements or other publicly available sources. IBM has not tested those products and cannot confirm the accuracy of performance, compatibility or any other claims related to non-ibm products. Questions on the capabilities of non-ibm products should be addressed to the suppliers of those products. If you are viewing this information in softcopy, the photographs and color illustrations may not appear. viii IBM System Storage N series: DataFabric Manager Server Release Notes

9 Contents Copyright and trademark information iii Trademark information iv Notices vii Release notes Fixed issues Fixed issues: Operations Manager Operations Manager displays an incorrect value for 1 TB or larger disks Operations Manager ignores volume space guarantee values when calculating storage system capacity DataFabric Manager server incorrectly displays Service Down alerts for vfiler units Domain user groups unable to run scheduled reports in DataFabric Operations Manager monitoring causes storage systems to panic Operations Manager does not report qtree quotas for storage systems running Data ONTAP DataFabric Manager shows mismatch in columns N series Management Console login fails when Operations Manager is configured to authenticate the LDAP users through PAM Fixed issues: Performance Advisor Degraded performance when Management Console is started more than three times in parallel.. 5 DataFabric Manager server crashes when client statistics are high Fixed issues: Protection Manager Open Systems SnapVault directories and relationships are duplicated after an upgrade Lengthy transfer operations can stop local backup jobs NDMP sessions might remain open when Protection Manager has long-running operations... 6 DataFabric Manager server fails when provisioning policy for a DR mirror node has deduplication enabled Protection Manager cannot delete the restore_symboltable file from the restored directory The restore_symboltable file does not get deleted after partially successful restores Remote backup or mirror job fails for empty datasets with scheduled protection policy OSSV restore operation fails as Protection Manager and Backup Manager remove the trailing "\" from the destination path During backup operation, Protection Manager displays OSSV transfer as "Partially Failed" Cannot delete a host from DataFabric Manager using the N series Management Console Identical qtree names might cause SnapVault relationships to be removed Fixed issues: Provisioning Manager Provisioning requests fail with "No IBM element in response" message CIFS shares and NFS exports for all volumes get deleted Performance of source storage system might degrade during cutover operation Provisioning Manager does not recognize the "cluster" license for Data ONTAP Mode storage system During vfiler migration, N series Management Console does not provide provision to select destination aggregates Copyright IBM Corp. 2010, 2011 ix

10 Known issues with Data ONTAP Snapshot query fails in a scaled cluster setup Issue with determining the storage capacity of the default volume SNMP timed out error message Data ONTAP is unable to perform SnapVault activities on a secondary storage system Lack of RSH-over-IPv6 support in Data ONTAP impacts Operations Manager Lack of RSH-over-IPv6 support in Data ONTAP impacts Provisioning Manager hosts.equiv and httpd.admin.access fail with IPv New and changed features Known issues with DataFabric Manager Known issues with installation and upgrade Delay in upgrading from DataFabric Manager server 3.2 or earlier Delay in upgrading from DataFabric Manager 3.5 or earlier The dfm report view command fails Cluster group in VCS setup fails Cluster setup scripts in Windows 2008 fail Upgrade from DataFabric Manager 3.8 on Windows Server 2008 might fail Known issues with Operations Manager DataFabric Manager monitor service exhausts memory and might fail due to large number of quotas Slow response time for Performance Summary reports in a scaled setup Striped aggregates are not displayed in the Aggregate custom report Volume backup fails from the Operations Manager UI Slow response time in displaying the Group status in a scaled setup DSN is not created on Windows Restoration of the DataFabric Manager database fails in DataFabricManager 3.8 or later IPv6 source address is incorrectly displayed in the trap receiver IPv4-mapped IPv6 addresses are not supported Inconsistent capacity graphs rsh commands fail on Windows Server Some DataFabric Manager CLI commands fail on Windows Server IPv6 link-local address is not supported DataFabric Manager database stops responding on a VMware server Incorrect interface reporting during failover Unusable database on the DataFabric Manager server Delayed display of Snapshot-based backup list Issue with Snapshot-based backups on Linux Inconsistent display of disk names for failed-over nodes Limitations of LUN management Known issues with Performance Advisor Data from custom view is lost when system:total_ops counter is part of custom view Delayed CLI response to the dfm perf clientstat collect command Delayed UI response on the Set Up Hosts window Delayed UI response in advanced views Data ONTAP global disable counter group option Known issues with Protection Manager Job Failure protection status is displayed for a dataset after an external relationship is imported.. 33 The compression option for SnapMirror connections is not preserved x IBM System Storage N series: DataFabric Manager Server Release Notes

11 Cannot import some external relationships from a qtree on the same source volume Stale SnapMirror relationships might be left after an NDMP migration Open Systems SnapVault relationship baseline is not registered as a backup version Incorrect dataset conformance status is displayed when the protection status is "Baseline Failure" 34 Relationship create jobs fail to register baseline version on destination storage systems running Data ONTAP or earlier Resizing of disaster recovery volumes for conformance after failover Support for Windows path names containing non-ascii characters Data protection transfer reports cannot be obtained when an OSSV primary directory name contains spaces Known issues and limitations with Provisioning Manager Some dataset migration details are not displayed after migration cutover vfiler unit migration cutover fails when source volumes are full The migration feature allows you to start unnecessary duplicate cleanup Changing the IPspace of a vfiler unit causes migration cutover to fail Volume-based SnapRestore during migration cutover causes failure Migration rollback fails if the migrated source volume contained no Newly added quotas are not migrated during rollback and subsequent The vfiler unit on the destination storage system is destroyed when cutover fails in the reincarnate phase Cutover operation fails to stop any active CIFS session on a vfiler unit Long-running operations not associated with the migration fail during the cutover phase Data ONTAP Mode does not support rollback operation Backup initiated during cutover operation might fail Online migration fails between a NetApp FAS system and an IBM N series storage system Cannot clone volumes in a migrated vfiler unit Data access to a migrated vfiler unit is blocked Qtree details do not appear after DR failover Changes to published documentation Where to find product documentation and other informamation Contents xi

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13 Release notes The purpose of this release is to provide problem fixes for issues that existed in DataFabric Manager 4.0. These release notes provide information about the fixed and known issues in DataFabric Manager and DataFabric Manager 4.0 feature enhancements. You can find detailed information about feature enhancements, new and changed CLI commands, and new events in the What is new section in the administration guide of each product. The following information is present in the Installation and Upgrade Guide For Use with DataFabric Manager Server 4.0 Supporting Operations Manager, Protection Manager, and Provisioning Manager: v Supported platforms v Supported applications v Limitations v License requirements v Instructions for installing and upgrading the software Copyright IBM Corp. 2010,

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15 Fixed issues Some issues are fixed in this release of the DataFabric Manager server. v Fixed issues: Operations Manager v Fixed issues: Performance Advisor on page 5 v Fixed issues: Protection Manager on page 5 v Fixed issues: Provisioning Manager on page 8 Fixed issues: Operations Manager Some known issues are fixed in Operations Manager for use with this release of the DataFabric Manager server. v Operations Manager displays an incorrect value for 1 TB or larger disks v Operations Manager ignores volume space guarantee values when calculating storage system capacity v DataFabric Manager server incorrectly displays Service Down alerts for vfiler units on page 4 v Domain user groups unable to run scheduled reports in DataFabric on page 4 v Operations Manager monitoring causes storage systems to panic on page 4 v Operations Manager does not report qtree quotas for storage systems running Data ONTAP on page 4 v DataFabric Manager shows mismatch in columns on page 4 v N series Management Console login fails when Operations Manager is configured to authenticate the LDAP users through PAM on page 4 Operations Manager displays an incorrect value for 1 TB or larger disks DataFabric Manager server uses SNMP to communicate with Data ONTAP to calculate the total size and used size of a disk. When a disk's total or used size is 1 TB or larger, Data ONTAP returns a negative value because SNMP represents the size as a signed integer. Operations Manager ignores volume space guarantee values when calculating storage system capacity Operations Manager calculates the storage system capacity as the sum of the total capacities of the volumes it contains. If there are thinly provisioned volumes, the storage capacity values displayed might be incorrect. Copyright IBM Corp. 2010,

16 In such cases, the storage system capacity might be reported as higher than the sum of the capacities of the aggregates in the system. DataFabric Manager server incorrectly displays Service Down alerts for vfiler units When you upgrade to DataFabric Manager server 3.8, DataFabric Manager server incorrectly displays Service Down alerts for vfiler units that are using NFS, CIFS and iscsi protocols. Domain user groups unable to run scheduled reports in DataFabric DataFabric Manager server prevents domain group users from running scheduled reports even when they have the privilege to run these reports in Operation Manager. The domain user (DataFabric Manager server administrator) has full access to the Operations Manager but is unable to run the scheduled reports. The job fails with the message: You do not have the capability to perform the DFM Database Read operation on the target object. Operations Manager monitoring causes storage systems to panic If a storage system contains a vfiler unit with CIFS configured, the system panics when monitored by Operations Manager. This occurs in storage systems running Data ONTAP 7.3 or later. Operations Manager does not report qtree quotas for storage systems running Data ONTAP If a storage system uses XML-based interface with Data ONTAP 7.3.3, Operations Manager fails to process the quota report output for qtrees. This results in failure to monitor qtrees for its quota limit, capacity, and usage. However, this problem is not applicable, if Operations Manager is using SNMP for a particular controller to monitor qtrees. DataFabric Manager shows mismatch in columns DataFabric Manager uses SNMPv1 that internally uses GETNEXT operation for collecting data from controllers. GETNEXT reads data column-wise and hence a mismatch is observed in the number of columns for some tables. N series Management Console login fails when Operations Manager is configured to authenticate the LDAP users through PAM When Operations Manager is configured to authenticate the LDAP users through PAM, N series Management Console login fails. However, Operations Manager access and functionality work as expected. 4 IBM System Storage N series: DataFabric Manager Server Release Notes

17 Fixed issues: Performance Advisor Some known issues are fixed in Performance Advisor for use with this release of the DataFabric Manager server. v Degraded performance when Management Console is started more than three times in parallel v DataFabric Manager server crashes when client statistics are high Degraded performance when Management Console is started more than three times in parallel The DataFabric Manager server performance is degraded when Management Console is started in parallel more than three times in the View tab of Performance Advisor. The performance degrade is most likely to occur when DataFabric Manager server monitors many objects. DataFabric Manager server crashes when client statistics are high When you use the Management Console or the command dfm perf clientstat list to view client statistics, the DataFabric Manager server might crash if the number of client statistics in the database is high. Fixed issues: Protection Manager Some known issues are fixed in Protection Manager for use with this release of the DataFabric Manager server. v Open Systems SnapVault directories and relationships are duplicated after an upgrade on page 6 v Lengthy transfer operations can stop local backup jobs on page 6 v NDMP sessions might remain open when Protection Manager has long-running operations on page 6 v DataFabric Manager server fails when provisioning policy for a DR mirror node has deduplication enabled on page 6 v Protection Manager cannot delete the restore_symboltable file from the restored directory on page 6 v The restore_symboltable file does not get deleted after partially successful restores on page 7 v Remote backup or mirror job fails for empty datasets with scheduled protection policy on page 7 v OSSV restore operation fails as Protection Manager and Backup Manager remove the trailing "\" from the destination path on page 7 v During backup operation, Protection Manager displays OSSV transfer as "Partially Failed" on page 7 Fixed issues 5

18 v Cannot delete a host from DataFabric Manager using the N series Management Console on page 7 v Identical qtree names might cause SnapVault relationships to be removed on page 8 Open Systems SnapVault directories and relationships are duplicated after an upgrade After an upgrade to Open Systems SnapVault 3.0, there is an issue in the NDMP browse request while transferring drives. DataFabric Manager server misinterprets the new path and baselines it, resulting in bandwidth wastage and unpredictable results, including inconsistent backups if they are running simultaneously. In addition, primary directories and Open Systems SnapVault relationships might be duplicated in the DataFabric Manager server database. Lengthy transfer operations can stop local backup jobs If the transfer of backups or plex jobs takes longer than the scheduled interval between local backup jobs on the primary storage system, the local backup jobs might not run. NDMP sessions might remain open when Protection Manager has long-running operations Protection Manager keeps an NDMP session open until a long-running operation (for example, a deduplication job) is completed. If the session is closed abruptly due to a network issue while performing an operation, then the session appears to be closed but might remain open in the system. DataFabric Manager server fails when provisioning policy for a DR mirror node has deduplication enabled If deduplication is enabled in a provisioning policy that is applied to a Disaster Recovery (DR) mirror node of a dataset, the DataFabric Manager server fails. The N series Management Console prevents a provisioning policy that has deduplication enabled from being applied to a mirror node. However, the N series Management Console does not prevent a provisioning policy that has deduplication enabled from being applied to a DR mirror node. Protection Manager cannot delete the restore_symboltable file from the restored directory When Protection Manager restores copies of the primary data by using NDMP, Data ONTAP adds a restore_symboltable file in the restored directory. The restore_symboltable file prevents SnapManager for Oracle from performing volume-based Snapshot restores. 6 IBM System Storage N series: DataFabric Manager Server Release Notes

19 The restore_symboltable file does not get deleted after partially successful restores The restore_symboltable file does not get deleted after a partially successful restore.. Remote backup or mirror job fails for empty datasets with scheduled protection policy If a dataset has no member and has a scheduled data protection policy, a remote backup or mirror job fails. OSSV restore operation fails as Protection Manager and Backup Manager remove the trailing "\" from the destination path Protection Manager and Backup Manager remove the trailing "\" from the destination path of an OSSV restore operation before sending the path to the OSSV host agent. For example, if the destination path of an OSSV restore operation is of the form "C:\" or "D:\", Protection Manager and Backup Manager send destination path of the form "C:" or "D:" to the OSSV host agent. Because a trailing "\" is required by OSSV while restoring to drives, the restore operation fails and displays the following error message: Have not been supplied a valid absolute restore path During backup operation, Protection Manager displays OSSV transfer as "Partially Failed" When you take a scheduled backup on an OSSV host from a Windows drive to a secondary storage system, after backup completes, the session must be closed and marked "Completed". Due to NDMP communication error between the DataFabric Manager server and secondary storage system, the session does not close properly, and Protection Manager displays the following error message: <secondary filer name>:/<volume name>:could not initiate backup transfer for <OSSV host name>:<windows drive>:/. Error while talking to <secondary filer name>: NDMP communication error while processing inbound messages. Cannot delete a host from DataFabric Manager using the N series Management Console The N series Management Console does not support deleting hosts from the DataFabric Manager database. Fixed issues 7

20 Identical qtree names might cause SnapVault relationships to be removed When qtrees in both the active and standby vfilers share the same name, SnapVault relationships might be removed. This is because if the qtree in the active vfiler is protected by SnapVault relationship, the qtree in the standby vfiler might also get associated with the same relationship. However, a cleanup process might reveal this incorrect association in the database and remove the SnapVault relationship from Protection Manager and vfilers. Fixed issues: Provisioning Manager Some known issues are fixed in Provisioning Manager for use with this release of the DataFabric Manager server. v Provisioning requests fail with "No IBM element in response" message v CIFS shares and NFS exports for all volumes get deleted v Performance of source storage system might degrade during cutover operation v Provisioning Manager does not recognize the "cluster" license for Data ONTAP Mode storage system on page 9 v During vfiler migration, N series Management Console does not provide provision to select destination aggregates on page 9 Provisioning requests fail with "No IBM element in response" message Provisioning requests might fail sometimes with the following message: No IBM element in response. In such cases, the DataFabric Manager server log might report errors in the select operation. You can verify the details of the job to check the status of the provisioning operation. CIFS shares and NFS exports for all volumes get deleted For NAS provisioning, when you delete the first provisioned volume in a dataset, the CIFS shares and NFS exports for all the volumes in that dataset get deleted. Performance of source storage system might degrade during cutover operation During the initial stage of cutover operation, Data Motion converts the existing SnapMirror relationships to use the synchronous SnapMirror mode, and waits for the relationship to synchronize. The synchronous SnapMirror mode places extra load on the source storage system. This might degrade the performance of the source storage system. 8 IBM System Storage N series: DataFabric Manager Server Release Notes

21 Provisioning Manager does not recognize the "cluster" license for Data ONTAP Mode storage system When a provisioning policy that has the Controller Failure Reliability property enabled, is used to provision a 7-Mode storage system, the following error message is displayed: Provisioning a new flexible volume (backup secondary) failed. This is because Provisioning Manager is not able to recognize the "cluster" license of DATA ONTAP Mode storage system. During vfiler migration, N series Management Console does not provide provision to select destination aggregates During vfiler migration, the N series Management Console does not allow you to select desired destination aggregates. The N series Management Console allows you to select only a destination storage system. After you select a destination storage system, Provisioning Manager automatically selects the destination aggregates, and migrates the source volume to the destination aggregates. Fixed issues 9

22 10 IBM System Storage N series: DataFabric Manager Server Release Notes

23 Known issues with Data ONTAP Some unexpected and potentially undesired behaviors in Data ONTAP are known to affect functionality in this release of the DataFabric Manager server. v Snapshot query fails in a scaled cluster setup v Issue with determining the storage capacity of the default volume v SNMP timed out error message on page 12 v Data ONTAP is unable to perform SnapVault activities on a secondary storage system on page 12 v Lack of RSH-over-IPv6 support in Data ONTAP impacts Operations Manager on page 12 v Lack of RSH-over-IPv6 support in Data ONTAP impacts Provisioning Manager on page 13 v hosts.equiv and httpd.admin.access fail with IPv6 on page 13 Snapshot query fails in a scaled cluster setup Snapshot query fails in a scaled cluster setup with a high number of cluster objects, such as volumes and aggregates. Therefore, you cannot monitor the Snapshot copies of such clusters by using Operations Manager. None. Issue with determining the storage capacity of the default volume The SNMP response for voltable does not list the root volume vol0 belonging to the nodes of a cluster. Therefore, the default volumes of these nodes are not reported in the SNMP response. You cannot discover these default volumes or generate reports to determine their storage capacity by using Operations Manager. Since there is no visibility to the root volume, you cannot generate reports using Operations Manager to determine the storage capacity of these volumes. None. Copyright IBM Corp. 2010,

24 SNMP timed out error message When multiple DataFabric Manager servers monitor a single cluster, it results in an SNMP timed out error message. Use only one DataFabric Manager server for monitoring a cluster at a time. Data ONTAP is unable to perform SnapVault activities on a secondary storage system When you use SnapVault or Open Systems SnapVault with Protection Manager with DataFabric Manager server 3.8 on a Data ONTAP storage system, the storage system might run out of resources (NDMP threads). This occurs because Protection Manager uses a new API for data transfer. Normal data protection activities are possible until the NDMP thread count in Data ONTAP is exceeded. The number of threads available is platform dependent and the threads cannot be recovered after they have been consumed. Normal activity continues in Data ONTAP, but additional NDMP transfers are blocked after the maximum thread count is reached. Note: After Data ONTAP reaches the NDMP thread limit, additional NDMP requests are not serviced, whether they are for SnapVault, SnapMirror, or other activities. This issue does not affect tasks initiated from the Backup Manager or Disaster Recovery Manager tabs in Operations Manager. None. The only recovery solution is to reboot the storage system or upgrade to a version of Data ONTAP that contains a fix. Lack of RSH-over-IPv6 support in Data ONTAP impacts Operations Manager Lack of RSH-over-IPv6 support in Data ONTAP impacts the vfiler quota monitoring, and LUN monitoring for storage systems and vfiler units (vfiler igroup, vfiler LUN, storage system LUN, vfiler iscsi initiator) in Operations Manager. In addition, it impacts the following functions in Operations Manager: v dfm run command v RLM commands v Password management 12 IBM System Storage N series: DataFabric Manager Server Release Notes

25 v Host RBAC management v vfiler quota management v Cluster Console Use SSH. Lack of RSH-over-IPv6 support in Data ONTAP impacts Provisioning Manager Lack of RSH-over-IPv6 support in Data ONTAP impacts the following in Provisioning Manager: (a) CIFS setup of a vfiler unit; and (b) NFS exports of storage owned by a vfiler unit. Use SSH. hosts.equiv and httpd.admin.access fail with IPv6 The hosts.equiv authentication does not support IPv6 addresses. APIs over HTTPS do not work for IPv6 addresses in Data ONTAP when the httpd.admin.access option on a storage system is set to a value other than legacy. Known issues with Data ONTAP 13

26 14 IBM System Storage N series: DataFabric Manager Server Release Notes

27 New and changed features DataFabric Manager 4.0 contains several new features and enhancements. This release supports VMware VMotion and VMware High Availability features. Operations Manager features This section describes new features and changes in Operations Manager in DataFabric Manager server 4.0. Detailed information about the features, including lists of new or changed CLI commands and events, is contained in the Operations Manager Administration Guide. The new features in Operations Manager include the following: v Monitoring and reporting of SAN-attached storage of gateway systems v Support for larger aggregates with a maximum size for 64-bit aggregates v Support for the Web services features and the DataFabric Manager APIs The changes in Operations Manager include the following: v Usability improvements to the graphical user interface N series Management Console changes This section describes new features and changes in N series Management Console for use with DataFabric Manager server 4.0. For detailed information about the features, see the N series Management Console Help. The changes in N series Management Console include the following: v Custom fields You can add and configure user-defined custom fields for datasets, protection policies, and provisioning policies. You can use these fields to enter custom information, such as cost center or chargeback codes. v Multiple selection filtering When filtering data that is displayed in a column, you can select multiple values from a column drop-down list. Provisioning Manager features This section describes new features and changes in Provisioning Manager for use with DataFabric Manager server 4.0. For detailed information about tasks and concepts related to the features, see the N series Management Console Help. For additional information about new and updated features, changes to Copyright IBM Corp. 2010,

28 the graphical user interface, lists of new and changed CLI commands, and product limitations, see What is new in this release in the Provisioning Manager and Protection Manager Guide to Common Workflows for Administrators. The new features in Provisioning Manager include the following: v Secondary storage space management For more details, see the Protection Manager features section. v Automated online migration for datasets and vfiler units You can migrate your data from one storage system to another without disrupting access to that data by the users or applications. You do so by enabling online migration (a component of the N series Data Motion solution). In addition to migration without disruption of data availability, online migration also enables automatic cutover and migration rollback. v Storage services You can preconfigure one or more combinations of protection, provisioning, resource pool, and vfiler template configurations into standard storage service packages that can readily be assigned to datasets requiring those specific storage services. Your storage service packages listed together can constitute a technical service catalog as described by the Information Technology Infrastructure Library, version 3 (ITIL V3). v Support for larger aggregates You can now use Provisioning Manager to manage large (64-bit) aggregates in Data ONTAP Mode or later. In addition, you can provision large volumes (volumes greater than 16 TB) in Data ONTAP Mode or later. The changes in Provisioning Manager include the following: v Usability improvements to the graphical user interface Protection Manager features This section describes new features and changes in Protection Manager for use with DataFabric Manager server 4.0. For detailed information about tasks and concepts related to the features, see the N series Management Console Help. For additional information about new and updated features, changes to the graphical user interface, lists of new and changed CLI commands, and product limitations, see What is new in this release in the Provisioning Manager and Protection Manager Guide to Common Workflows for Administrators. The new features in Protection Manager include the following: v Secondary storage space management When the licensed protection application or provisioning application displays an aggregate space problem, you can use the Secondary Space 16 IBM System Storage N series: DataFabric Manager Server Release Notes

29 Management feature to plan and implement tasks to resolve it. You can use the secondary space management feature to do the following: View detailed information about the space status of your aggregates and about the space status of the volumes and datasets in those aggregates View space management jobs that are associated with an aggregate Plan and implement migration of volumes on secondary storage Plan and implement tasks for deleting backups and Snapshot copies (primary, secondary, and tertiary storage), increasing or decreasing the volume size (primary, secondary, and tertiary storage), and performing volume deduplication (primary storage only) View the estimated space that will be reclaimed on an aggregate as a result of performing the tasks that you plan v Support for bidirectional SnapVault backups Protection Manager supports SnapVault Primary and SnapVault Secondary licenses on the same storage system. This allows you to perform SnapVault host-to-host backups of primary and secondary dataset nodes within the same storage system. Note: Backups of volumes within the same aggregate are not supported. However, backups of aggregates within the same storage system are supported. You cannot use a vfiler unit as the secondary dataset node. v Support for larger aggregates You can use Protection Manager to manage large (64-bit) aggregates in Data ONTAP Mode or later. v Licensing When you install the Protection Manager license, the provisioning functions provided by Provisioning Manager are also enabled. The changes in Protection Manager include the following: v Unprotected data The definition of unprotected data is changed. External relationships are no longer counted as unprotected data. v AutoSupport Additional protection information is sent to AutoSupport if you have Protection Manager enabled. v Protection status error messages Because error messages related to protection status now provide more information, you can troubleshoot protection problems more easily. v Usability improvements to the graphical user interface New and changed features 17

30 Performance Advisor features This section describes new features and changes in Performance Advisor for use with DataFabric Manager server 4.0. For detailed information about tasks and concepts related to the features, see the N series Management Console Help. For additional information about new and updated features, changes to the graphical user interface, lists of new and changed CLI commands, and product limitations, see What is new in this release in the Performance Advisor Administration Guide. The new features in Performance Advisor include the following: v Data collection configuration You can view the counters for which data collection is enabled or disabled on a per storage system basis. The following are the other advantages that are available with this feature: Disable and enable data collection for selected counters per storage system Configure sample rate and retention period for selected counter groups per storage system Copy the data collection configuration to other storage systems v Advanced views You can use advanced views to establish a baseline for the data collected by applying statistical parameters such as minimum, maximum, mean, and percentile. Time filters enable you to retrieve the baseline data based on selected business hours and week days. You can use the baseline data in advanced views to set appropriate thresholds. v Data export This feature helps you to export the Performance Advisor data collected on the DataFabric Manager server. The data is collected in CMA format. However, you should use this feature only when IBM requests the data from you. v Performance diagnosis You can diagnose the storage system for any performance-related issue during the given period and get recommendations to resolve the issue. The event correlation chart allows you to plot events of related objects. Also, the chart plots the Operations Manager events, which can help you diagnose the cause of a performance degradation. v Client statistics You can collect the statistics related to CIFS and NFS client operations to find the cause of latency. Also, you can use this feature to automatically collect per-client statistics when a set of thresholds on a storage system is breached. 18 IBM System Storage N series: DataFabric Manager Server Release Notes

31 The changes in Performance Advisor include the following: v Flexible custom views You can apply custom views on either a particular object or every instance of the selected object. The following are the other advantages that are available with this feature: Make copies of canned views and modify them Display data for historical periods in custom views Compare the data collected for a counter on multiple instances of an object Configure bar chart preferences such as the number of objects and the kind of chart v Usability improvements to the graphical user interface New and changed features 19

32 20 IBM System Storage N series: DataFabric Manager Server Release Notes

33 Known issues with DataFabric Manager Some unexpected and potentially undesired behaviors, as well as, in some cases, workarounds to avoid these behaviors, are identified in this release of the DataFabric Manager server. v Known issues with installation and upgrade v Known issues with Operations Manager on page 23 v Known issues with Performance Advisor on page 31 v Known issues with Protection Manager on page 32 v Known issues and limitations with Provisioning Manager on page 36 Known issues with installation and upgrade Some unexpected and potentially undesired behaviors, as well as, in some cases, workarounds to avoid these behaviors, are identified while installing or upgrading to this release of the DataFabric Manager server. v Delay in upgrading from DataFabric Manager server 3.2 or earlier v Delay in upgrading from DataFabric Manager 3.5 or earlier on page 22 v The dfm report view command fails on page 22 v Cluster group in VCS setup fails on page 22 v Cluster setup scripts in Windows 2008 fail on page 23 v Upgrade from DataFabric Manager 3.8 on Windows Server 2008 might fail on page 23 Delay in upgrading from DataFabric Manager server 3.2 or earlier Due to database schema changes, you might experience several minutes to a few hours of delay when upgrading to DataFabric Manager 3.3 or later from an earlier release. The time required to perform the upgrade depends on the size of the database, the amount of history in the database, the CPU speed, and I/O throughput of the system. The upgrade process might take 30 to 50 minutes for large databases. The following tasks require the most time: v Merging rotating history tables v Populating history tables v Populating volume history tables v Populating aggregate history tables Copyright IBM Corp. 2010,

34 v Reloading the database into the most recent file format (at the end of the database upgrade) None. Delay in upgrading from DataFabric Manager 3.5 or earlier If you are upgrading from DataFabric Manager 3.5 or earlier to DataFabric Manager 3.6 or later, the time taken to upgrade the performance data files (data of 20 GB or more) is long. The length of time is dependent on the platform used. The space used by the performance data files increases by about 65% during the upgrade. None. The dfm report view command fails If you have created custom reports with GUILink and SecureGUILink as fields in DataFabric Manager or earlier, upgrading to DataFabric Manager 3.8 causes the dfm report view command to fail. Edit the custom reports in Operations Manager by removing the fields, and save the reports before you can view them. Cluster group in VCS setup fails In a Veritas Cluster Server (VCS) setup, if you are upgrading the cluster nodes from DataFabric Manager or earlier, then the cluster group fails. In the VCS Cluster Explorer window, click the Properties tab for dfm-dbserver, and then change the MonitorProcess value dbsrv9 to dbsrv10 in the following entry: Alternatively, you can use the following command to change the value: /opt/vrtsvcs/bin/hares -modify dfm-dbserver MonitorProcesses 22 IBM System Storage N series: DataFabric Manager Server Release Notes

35 Cluster setup scripts in Windows 2008 fail DataFabric Manager cluster setup scripts fail to run on a 64-bit Windows 2008 server using 32-bit ActivePerl. Install 64-bit ActivePerl. Upgrade from DataFabric Manager 3.8 on Windows Server 2008 might fail When you upgrade from DataFabric Manager 3.8 on Windows Server 2008, the upgrade might fail. Complete the following steps to upgrade from DataFabric Manager Stop all the DataFabric Manager services by using the dfm service stop command. 2. Install DataFabric Manager on Windows Note: You need not uninstall DataFabric Manager 3.8 to upgrade using the above-mentioned procedure. Known issues with Operations Manager Some unexpected and potentially undesired behaviors, as well as, in some cases, workarounds to avoid these behaviors, are identified in Operations Manager for use with this release of the DataFabric Manager server. v DataFabric Manager monitor service exhausts memory and might fail due to large number of quotas on page 24 v Slow response time for Performance Summary reports in a scaled setup on page 24 v Striped aggregates are not displayed in the Aggregate custom report on page 24 v Volume backup fails from the Operations Manager UI on page 25 v Slow response time in displaying the Group status in a scaled setup on page 25 v DSN is not created on Windows on page 25 v Restoration of the DataFabric Manager database fails in DataFabricManager 3.8 or later on page 26 v IPv6 source address is incorrectly displayed in the trap receiver on page 26 v IPv4-mapped IPv6 addresses are not supported on page 26 v Inconsistent capacity graphs on page 27 Known issues with DataFabric Manager 23