New adventures is site disaster recovery

Transcription

1 New adventures is site disaster recovery Alex Davies Manager NetBackup Technical Field Enablement 1

2 Agenda 1 Site DR common solutions 2 Things to avoid (known issues) 3 Catalog changes in 7.5 how they impact 4 Auto Image Replication a better way SYMANTEC VISION

3 Site level data protection common solutions. 3

4 Traditional site data protection Truck your tapes to the DR site Data Center A Traditional model of tape off-site Situation: Two sites One production site and one dedicated DR site Backup tapes shipped between them Supports wide geographical separation How far can you drive in a day? Requires a full catalog recovery at the DR site Doesn t support advanced disk technologies Labor intensive = Expensive, error prone Stuff Happens: Traffic holdups, Lost Tapes, Encrypt against theft Data Center B SYMANTEC VISION

5 Traditional site data protection More typically storage is at a 3 rd location Tape store Data Center A Traditional model of tape off-site Situation: Two sites One production site and one dedicated DR site Backup tapes held at separate tape store Supports wide geographical separation How far can you drive in a day? Requires a full catalog recovery at the DR site Doesn t support advanced disk technologies Labor intensive = Expensive, error prone Stuff Happens: Traffic holdups, Lost Tapes, Encrypt against theft Data Center B SYMANTEC VISION

6 Advanced site data protection Single (Global) Domain Environments Data Center A Dual-site/single domain Situation: Two sites, backups written locally and duplicated cross-site No need for dedicated DR site Secondary site is part of the domain No physical media movement between sites Supports advanced disk technologies and tape Rapid recovery capability Expensive Limitations on geographical separation Difficult to do DR testing Data Center B SYMANTEC VISION

7 Advanced site data protection Dual Domain Environments with out of band replication Data Center A Dual-site/single domain Situation: Two sites, backups written locally and duplicated cross-site Optional physical media movement between sites Supports advanced disk technologies and tape Requires partial catalog recovery at DR site Lacks granularity Data Center B Tapes must still be trucked SYMANTEC VISION

8 Some known issues 8

9 Duplicate and import Unsupported, do not do this Production Domain DR Domain Clients Production Master Server Unsupported Configuration DR Master Server Clients B a c k u p Both domains own the data WAN or LAN I m p o r t Media Servers Optimized Duplication Media Servers SYMANTEC VISION

10 Simply replicating the catalog and disk storage does not always work Production Domain DR Domain Production Master Server Clients Unsupported Catalog Replication Configuration DR Master Server Clients Media Servers B a c k u p Disk media IDs don t match. WAN or LAN Device Level Replication Media Servers R e s t o r e SYMANTEC VISION

11 Nbcatsync (introduced in NetBackup 6.5.6/7.0.1) Production domain DR domain Production Master Server DR Master Server Clients nbcatsync C C a a t t a a l l o o g g Clients Media Servers bb a c k u p WAN or LAN Device Level Replication r e c o v e r y Media Servers R e s t o r e SYMANTEC VISION

12 Catalog changes in NetBackup 7.5 How they impact site DR procedures 12

13 Image meta-data is now held in the relational database Partial catalog recovery process has changed: Image dotf files are restore to the catalog Relational database is restored to the staging area Image meta-data must be exported and imported: cat_export all staging source_master <source master server> cat_import all Do this before running: nbcatsync backupid On an average catalog is adds 3-4 hours to the recovery time Partial catalog replication is more complex: Image meta-data must be periodically exported, replicated and imported when needed Partial catalog replication is NOT recommended for 7.5 and above SYMANTEC VISION

14 Auto Image Replication A better way. 14

15 What is Auto Image Replication? Automatic copying of individual backup images between independent NetBackup domains Extends the SLP model beyond the borders of a single NetBackup domain Allows selective replication of critical backup data Changes the game in off-site data protection by introducing a continuous process: Automatically sends backups off-site electronically No need to ship tapes to a DR site Images available on demand at the target site No time consuming catalog recovery No complex DR fire drills Allows different retentions to be applied in source and target domains but ensures a minimum off site retention Addresses long term compliance issues as well as site DR SYMANTEC VISION

16 How Auto Image Replication Works NBU Master Domain A NBU Master Domain B Restore Import image Backup NBU Media Server NBU Client Device Notifies NBU Duplication NBU Media Server Image OpenStorage device Image OpenStorage device Image OST Optimized Duplication Source Domain Target Domain SYMANTEC VISION

17 Source and target SLPs control operation (NBU 7.1). Source Domain Target Domain SYMANTEC VISION

18 Source and target SLPs control operation (NBU 7.5). Source Domain Target Domain SYMANTEC VISION

19 Many to one Auto Image Replication NBU Master Domain A NBU Master Domain C Source Data Center 1 Image A Device Notifies NBU Import the images Image A NBU Master Domain B Image B OST Appliance or PureDisk NBU Media Server Image B Central target data center Source Data Center 2 SYMANTEC VISION

20 Some use cases for many to one A.I.R. Remote office backup NBU Master Domain A NBU Master Domain C Source Data Center 1 Image A Device Notifies NBU Import the images Long term bunker storage for compliance NBU Master Domain B Image A Image B OST Appliance or PureDisk NBU Media Server Outsourced disaster recover Image B Central target data center Source Data Center 2 service SYMANTEC VISION

21 One to many Auto Image Replication NBU Master Domain B NBU Master Domain A Device Notifies NBU Image A NBU Client Target DC 1 NBU Master Domain C Image A Device Notifies NBU Image A Source Data Center Target DC 2 SYMANTEC VISION

22 Options for AIR configurations Las Vegas London 1. Uni-directional 2. Bi-directional 3. Many to one 4. Cascaded 5. One to many Sydney SYMANTEC VISION

23 Auto Image Replication support NetBackup support for AIR (minimum versions): MSDP supported from NetBackup 7.1 PDDO supported from PureDisk 6.6.3a 52xx series appliance supported from version N xx series appliance supported from version D 1.4 Note that appliances require NetBackup on the master server OpenStorage support for AIR: Vendors currently shipping plug-ins that support AIR Nexenta, Sepaton, Quantum Vendors currently developing plug-ins to support AIR in NetBackup 7.6 Exagrid, Data Domain, HP, Falconstor Note that support is subject to the vendors independent release schedules BMR support from NetBackup 7.5 SYMANTEC VISION

24 Auto Image Replication compatibility IP only replication: MSDP <-> MSDP 52xx <-> MSDP MSDP <-> 52xx 52xx <-> 52xx OST <-> OST (selected vendors only) IP or FC replication MSDP -> PDDO/50xx 52xx -> PDDO/50xx PDDO/50xx <-> PDDO/50xx PDDO to MSDP replication (including 50xx to 52xx) is NOT planned MSDP and PDDO replication to OST devices is NOT supported OST to OST replication is supported with single vendors only SYMANTEC VISION

25 Thank you! Alex Davies Copyright 2012 Symantec Corporation. All rights reserved. Symantec and the Symantec Logo are trademarks or registered trademarks of Symantec Corporation or its affiliates in the U.S. and other countries. Other names may be trademarks of their respective owners. This document is provided for informational purposes only and is not intended as advertising. All warranties relating to the information in this document, either express or implied, are disclaimed to the maximum extent allowed by law. The information in this document is subject to change without notice. 25