HP Auto Port Aggregation (APA) Release Notes

Transcription

1 HP Auto Port Aggregation (APA) Release Notes HP-UX 11i v3 HP Part Number: Published: March 2013 Edition: 2

2 Copyright 2013 Hewlett-Packard Development Company L.P. Confidential computer software. Valid license from HP required for possession, use or copying. Consistent with FAR and , Commercial Computer Software, Computer Software Documentation, and Technical Data for Commercial Items are licensed to the U.S. Government under vendor's standard commercial license. The information contained herein is subject to change without notice. The only warranties for HP products and services are set forth in the express warranty statements accompanying such products and services. Nothing herein should be construed as constituting an additional warranty. HP shall not be liable for technical or editorial errors or omissions contained herein. UNIX is a registered trademark of The Open Group. Itanium is a trademark of Intel Corporation in the U.S. and other countries.

3 Contents 1 HP APA Overview for HP-UX 11i v3...4 Auto Port Aggregation...4 Failover Group Known Problems Fixed and Features in different HP-UX 11i v3 Releases...5 New Features in B Release...5 New Feature B Release...5 Known Problems Fixed in B Version...5 Known Problems Fixed in B Release...6 Known Problems Fixed in B Known Problems Fixed in This B New Features in B Release...6 Known Problems Fixed in B Version...6 New Features in B Release...7 Known Problems Fixed in This Version...7 New Features in B Release...7 Known Problems Fixed in This Version...7 New Features in B Release Known Problems...10 Known Problems with this release...10 Known Problems with Switches Compatibility and Installation Requirements...12 Hardware Requirements...12 Required Disk Space...12 First-time Installation...12 Interoperability with HP Serviceguard...12 Other Requirements Related Information...13 Software Availability in Native Languages...13 Contents 3

4 1 HP APA Overview for HP-UX 11i v3 This chapter provides information about the HP-UX 11i v3 Auto Port Aggregation (APA) and LAN Monitor software. Auto Port Aggregation HP APA is a software product that creates link aggregates, often called "trunks," which provide a logical grouping of two or more physical ports into a single Fat-Pipe. Network traffic is load balanced across all of the links in the aggregation, which allows you to build large bandwidth logical links into the server that are highly available and completely transparent to the client and server applications. In addition, HP APA provides automatic link failure detection and recovery, and optional support for load balancing of network traffic across all of the links in the aggregation. HP APA supports HP Serviceguard with certain conditions. For more information, see the HP Auto Port Aggregation (APA) Administrator's Guide for HP-UX 11i v3. To locate this document, go to the product page. On this page, select HP-UX Auto Port Aggregation (APA) Software. Failover Group HP APA supports the creation of failover groups (link aggregates in LAN_MONITOR mode), providing a failover capability for links. In the event of a link failure, LAN Monitor automatically migrates traffic to an available, standby link (port or link aggregate) in the failover group. Failover groups do not support HP Serviceguard. 4 HP APA Overview for HP-UX 11i v3

5 2 Known Problems Fixed and Features in different HP-UX 11i v3 Releases New Features in B Release The revision string for APA has been aligned with the HP-UX 11i v3 Operating Environments Update Release (March 2013). Enhanced APA troubleshooting APA internal tracing has been enhanced to capture required and necessary traces that are useful in debugging APA. These messages are logged in APA internal trace buffer. These traces can analyzed by HP Support using an HP internal tool (lanshow). With this enhancement you can trace all the syslog.log messages and messages in the internal trace buffer of APA, irrespective of HP_APA_USE_SYSLOG is enabled or not. The parameter HP_APA_USE_SYSLOG in file /etc/rc.config.d/hp_apaconf when enabled, selectively logs messages in syslog.log file. This parameter is disabled by default. Table 1 Fixes in the HP APA B Release Defect id QXCR Description Improving APA traces NOTE: MANUAL mode link aggregation has been deprecated. It is planned for future obsolescence. HP recommends to not use this configuration. Configuration with link aggregation in LACP mode is recommended. NOTE: LB_PORT provides a better traffic distribution across each of the physical ports in the aggregation. HP recommends using LB_PORT for efficient traffic distribution. NOTE: HOT_STANDBY is obsoleted in this version. HP recommends using LAN_MONITOR. New Feature B Release The B version of HP APA: APA over DIO interfaces support. DIO directly exposes the NIC to the guest. Support for aggregating DIO interfaces in HPVM guest is qualified in this revision of APA. LACP Aggregation and Lan monitor mode have been qualified for 10Gb drivers (iexgbe and iocxgbe). For how to create a DIO pool and assign the DIO interface to HPVM guest refer DIO Admin guide. For more information on the new features and how to use them, see the HP Auto Port Aggregation (APA) Administrator's Guide for HP-UX 11i v3. To locate this document, go to the go/hpux-networking-docs product page. On this page, select HP-UX Auto Port Aggregation (APA) Software. Known Problems Fixed in B Version Table 2 lists the known problems fixed in this release of HP APA B Table 2 Fixes in the HP APA B Release Defect ID QXCR QXCR Description Guest panic loop with 1.5G memory and 16 DIO functions. HPVM guest connected via vswitch APA/LM connectivity pbms after LM failover. New Features in B Release 5

6 Known Problems Fixed in B Release Table 3 lists the known problems fixed in this release of HP APA B Table 3 Fixes in the HP APA B Release Defect ID QXCR QXCR Description When a LAN Monitor uses fixed MAC addresses, failback mechanism may not happen. When upgrading the HP-UX Operating Environment (OE) to the HP-UX 11i v3 March 2011 Operating Environment Upgrade Release (OEUR) or later, the LAN PPA numbers for interfaces might be modified from the 1xx range to 9xx range. Known Problems Fixed in B Table 4 lists the known problems fixed in this release of HP APA B Table 4 Fixes in the HP APA B Release Defect ID QXCR QXCR Description In HP APA B and earlier versions, the APA/LM statistics are not updated for upto 90 seconds after fail-back. In HP APA B , the LACP aggregation functionality does not function correctly. Known Problems Fixed in This B Table 5 lists the known problems fixed in this release of HP APA B Table 5 Fixes in the HP APA B Release Column Head QXCR QXCR QXCR Column Head Critical Resource Analysis fails on a LAN Monitor link if the link is down or not in the connected to active state. In HP APA B , the /sbin/init.d/hpapa script does not recognize the HP_APA_STATION_ADDRESS parameter in the /etc/rc.config.d/hp_apacon file. The lancheckconf command returns the Memory fault (coredump) message when reading the /etc/lanmon/lanconfig.ascii file. New Features in B Release The new feature of B version of HP APA are : Supports the assignment of fixed MAC addresses for link aggregates and failover groups. See the HP Auto Port Aggregation (APA) Administrator's Guide (HP Part Number J ) for more information on the new features and how to use them. Known Problems Fixed in B Version Table 6 lists the known problems fixed in this release of HP APA B Known Problems Fixed and Features in different HP-UX 11i v3 Releases

7 Table 6 Fixes in the HP APA B Release Column Head QXCR QXCR QXCR Column Head If thelanconfig.ascii file is empty when the system is booted, an error message is displayed. The APA Statistics Monitor displays time without leading zeroes. Invoking the nwmgr -S apa command causes the command to dump core. New Features in B Release Supports the creation of failover groups over InfiniBand IPoIB ports. See the HP Auto Port Aggregation (APA) Administrator's Guide (HP Part Number J ) for more information on the new features and how to use them. Known Problems Fixed in This Version Table 7 lists the known problems and fixes in this release of HP APA B Table 7 Fixes in the HP APA B Release Defect ID QXCR QXCR QXCR Description NCWeb: FOG interval in seconds on main screen, but in microseconds on the create/modify screen. NCWeb: Incorrect Preview Command Line when creating failover group Host crash during Netperf + APA Interaction Tests. New Features in B Release Enables you to monitor link aggregate MIB statistics using the nwmgr command. Supports the resetting of link aggregates and failover groups with the nwmgr and lanadmin commands. See thehp Auto Port Aggregation (APA) Administrator's Guide (HP Part Number J ) for more information on the new features and how to use them. Known Problems Fixed in This Version Table 8 lists the known problems and fixes in this release of HP APA B Table 8 Fixes in the HP APA B Release Defect ID CR: JAGag07481 SR: CR: JAGag27459 SR: CR: JAGag28381 SR: CR: JAGag33139 SR: Description PAgP ports in link aggregates join different aggregates after the ports are reset or the CKO setting changes. HP APA commands appear to hang because of multiple mp_timeout() processes. When changing port modes from LACP to MANUAL, there is a panic in igelan_callback(). The nwmgr command accepts malformed decimal values for the poll_interval parameter. New Features in B Release 7

8 Table 8 Fixes in the HP APA B Release (continued) Defect ID CR: JAGag34093 SR: CR: JAGag34099 SR: CR: JAGag34121 SR: CR: JAGag34122 SR: CR: JAGag34123 SR: CR: JAGag38403 SR: CR: JAGag38416 SR: CR: JAGag38440 SR: CR: JAGag38738 SR: Description HP APA fails to form a link aggregate when a single PPA is unavailable. HP APA commands abort because of an assertion failure. When adding an disabled link aggregate, an incorrect message displays. When adding invalid ports, an incorrect message displays. After modifying the vmtu value, the displayed value is incorrect. HP APA sends an incorrect LACP Marker response PDU. Under heavy load, outbound PAgP hello packets stop. When stopping PAgP, the group capability set by the administratormight be cleared. When a user application sends a DL_HP_HW_RESET_REQ primitive to a link aggregate or failover group, HP APA returns the error code 233 [EOPNOTSUPP]. New Features in B Release The B version of HP APA: Supports the TSO (TCP Segmentation Offload), also known as Large Send, feature if an aggregate is created with Ethernet cards that all support TSO or if the active port in a failover group supports TSO. Supports 64-bit MIB (RFC 2863) statistics if all the interfaces within a link aggregation or failover group support 64-bit statistics. Supports proactive failover for failover groups. Proactive failover is a cost-based failover policy in which each port in a failover group is assigned a cost. With this policy, the active port of a failover group is always the link that is the most efficient at carrying traffic. Efficiency is measured in terms of normalized port cost, which is the assigned port cost divided by the port's current link speed. The lower the normalized port cost, the higher the efficiency. Supports the creation of Virtual LANs (VLANs) over link aggregates and failover groups. Supports the aggregation of up to eight physical ports into a MANUAL or FEC_AUTO mode link aggregate. For proper operation, the link partner (switch or server) must also be configured to create a trunk using same mode on those ports that are connected to the physical ports of the link aggregate. LACP_AUTO and LAN_MONITOR modes continue to support up to 32 ports into a link aggregate or failover group. 8 Known Problems Fixed and Features in different HP-UX 11i v3 Releases

9 Supports IPv6 addressing for link aggregates and LAN Monitor failover groups. You can now use port-based (LB_PORT) and IP-based (LB_IP) load balancing for IPv6 traffic on link aggregates. In addition, you can configure an IPv6 address on the primary port of a failover group. Supports HP-UX APA operations in the System Management Homepage (SMH) Graphical User Interface and Terminal User Interface. Supports HP-UX APA operations in the new nwmgr command. Supports SSHA (Single System High Availability) Online-Deletion of NICs. Improves system and network availability. Supports LACP (IEEE802.3ad) fast timeout. HP APA can detect link failures more quickly. Supports Nortel's Split Multi-Link Trunking (SMLT) technology. A link aggregate can span over more than one switch, which removes switches as a single point of failure. Supports failover groups for use with HP Serviceguard. Supports the logging of status messages to thesyslog.log file. See the HP Auto Port Aggregation (APA) Administrator's Guide (formerly called the HP Auto Port Aggregation Support Guide (HP Part Number J ) for more information on the new features and how to use them. New Features in B Release 9

10 3 Known Problems This section can be divided into two parts as follows: Known Problems with this release (page 10) Known Problems with Switches (page 10) Known Problems with this release This section provides a list of known problems and limitations as known to HP at the time of publication. If workarounds are available, they are included. Defect ID: Problem: QXCR Inconsistent behavior while deleting aggregation onvm guest for DIO interface While deleting a DIO LACP aggregation in HPVM Guest for "iexgbe" driver a delay may be observed in deleting an aggregation. There is no loss of traffic, except some delay. This delay mostly attributes to two factors 1. Low number of vcpus 2. lan reset taking time This issue is not very prominent if the number of interfaces in the aggregation is lower than the number of vcpus. Defect ID: Problem: QXCR When heavy UDP traffic is run over APA DIO interfaces and if network cable pull out is performed, the UDP traffic tries to escape to other available interfaces. As the traffic is heavy this would take the system to hang state. This behavior is not seen with TCP traffic. Known Problems with Switches HP ProCurve Switches When disabling Cisco's Fast Ether Channel protocol on the HP 9000 server, the HP ProCurve switches block that particular port from further use. Severity: Medium 10 Known Problems

11 Corrective Action: To use the network physical port on the HP 9000 server, physically move the connection from the server to the switch to another non-cisco Fast EtherChannel port on the switch. Cisco Catalyst 5000 Switches Turning off Cisco's Fast Ether Channel protocol on one network physical port on the HP 9000 server might cause the entire link aggregate (the port it is associated with) to be deconfigured. Severity: High Corrective Action: Reconfigure the switch; do not include the port in the link aggregate being configured. See the appropriate switch documentation for information on how to reconfigure link aggregates. The Catalyst 5000 switch allows only two- or four-port link aggregates. See the Cisco Catalyst 5000 Configuration Guide for information about these limitations. 3Com SuperStack II Switches To interoperate with the switch, disable the Trunk Control Message Protocol (TCMP) on all of the ports that are being used with HP Integrity servers. Known Problems with Switches 11

12 4 Compatibility and Installation Requirements This section describes the compatibility information and installation requirements for this release. For specific installation instructions, see the HP Auto Port Aggregation (APA) Administrator's Guide. To locate this document, go to the product page. On this page, select HP-UX Auto Port Aggregation (APA) Software. Hardware Requirements This version of HP APA runs on HP Integrity servers with the HP-UX 11i v3 (B.11.31) operating system. HP APA supports Cisco's FastEtherChannel (FEC, also known as PAgP) protocol, the Link Aggregation Control Protocol (IEEE 802.3ad), or manual trunking mechanisms. HP has tested switches from the following vendors to work with HP APA: 3Com Cisco (also Split LACP link aggregations on Cisco Switch Stacks) HP Procurve Foundry Alteon Nortel Extreme For Nortel SMLT support, HP has tested the Passport 8006 and Passport 8010 switches with the version of the software. For information on network adapter cards supported refer APA Support Matrix at Required Disk Space Approximately 2 MB. First-time Installation For an initial HP APA installation, two files, hp_apaconf and hp_apaportconf are placed in /etc/rc.config.d. The default configuration port mode is MANUAL. Interoperability with HP Serviceguard For this release of HP APA, to use link aggregates and failover groups (LAN_MONITOR mode) with HP Serviceguard, you must use HP Serviceguard version A or later. Other Requirements HP APA must be installed with the system up. A reboot will be required. Installation requires superuser permissions. Estimated time to install the software is 3 to 5 minutes, depending on the complexity of your system. 12 Compatibility and Installation Requirements

13 5 Related Information The latest documentation for HP APA is available at Available documents include: HP Auto Port Aggregation (APA) Administrator's Guide Performance and Scalability White Paper Split Trunking Support with HP Auto Port Aggregation Using HP APA with HP Virtual Connect Modules Using APA to Build a Screaming Fast Network Server Connection Software Availability in Native Languages The HP APA product is available only in the English language. Software Availability in Native Languages 13

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