IP Storage On-The-Road Seminar Series

Transcription

1 On-The-Road Seminar Series Disaster Recovery and Data Protection Page 1 Agenda! The Role of IP in Backup!Traditional use of IP networks for backup! backup capabilities! Contemporary data protection solutions for!snapshot Technology!Eliminating the Backup Window!: Consolidating Backup! Affordable Disaster Recovery using!remote Replication methods for!remote Replication with IP protocols!offsite Data Replication Schemes For Native!: Disaster Recovery! Summary Page 2 Traditional use of IP networks for backup External Array Corporate External Array External Array Backup Page 3

2 Backup Capabilities! Native tape backup devices! Backup to remote tape infrastructure! Block-based backup using data center IP infrastructure Page 4 Native Backup RAID Drive RAID Drive RAID Drive IP Systems! Huge simplification of management if large number of small servers Page 5 Remote Backup NT ( ) Mission-Critical (Oracle, ERP DB) NT! Allows customers to move archiving off-site for higher disaster protection HBAs Page 6

3 Backup & Restore Remote Data Center Data Center #1 Optical IP MAN / WAN FCIP Gateway FCIP Gateway Live Hosted Customer Data or Content Data Center #2 Remote Backup! description:! Hosted customer data or content is backed up at remote data center! Data centers may be across the metro or in separate geographical regions! In case of data loss, backup is accessible directly over the MAN/WAN Page 7 Contemporary Data Protection Schemes for Page 8 Snapshot Technology Time Moves Forward Blocks A and B Change on A B A B Take Snapshot C D Snapshot0 and Snapshot Made of Same Blocks Page 9

4 Automated Snapshots!Snapshot! a set of incremental pointers of a volume at a point in time. It allows the users to roll back the volume to its state at a certain point in time in the past.!benefits:! Near instantaneous retrieval of data compared to tape backup solutions! Facilitates recovery to pre-error state (compared to mirroring, which would mirror all errors)! Minimal storage space required by incremental pointers - no need to use slow offline solutions such as backup tape and no need for long backup windows 2:30 p.m.: CEO realizes he has accidentally deleted an important file! The IT administrator goes through the following steps to fix the problem with the snapshot feature: volume at 2:30 p.m :00 p.m. snapshot Instantaneous rollback process Recovered: 2:00 p.m. volume, before the file deletion Page 10 Eliminating the Backup Window G: Corporate IP- Automated or Page 11 Instantaneous Restore Corporate G: IP- Automated or Page 12

5 : Consolidating Backup Central Backup Site Backup Automated Corporate #1 #1 Subnet,WAN IP WAN or IP WAN or MAN MAN Remote #1 Remote #1 #2 Clone #1 Clone #2 Snapshot #1 Production Site #1 Backup Site Production Site #2 Production Traffic Corporate #2 #2 #2 Snapshot #2 Production Traffic Page 13 Affordable Disaster Recovery Using Solutions Page 14 Remote Replication for! Synchronous Replication! Each write verified written to remote site before next write! Remote site replica identical to primary! Distance limited to around 100 KM (latency)! Asynchronous Replication! Writes allowed to queue to certain depth before no more writes allowed! Remote site copy differs only by queued write depth! Extends distance! Remote Copy! Initial remote copy made from primary volume.! Incremental updates made with additional, scheduled snapshots! No distance limits Page 15

6 Replicating with Fibre Channel Protocol! Fiber channel limited to 10 km! Distance replication requires use of IP protocol! Multiple methods! FCIP protocol! ifcp protocol! Fiber channel to router Page 16 Remote Replication Using ifcp FC es Data Center A Departmental Remote Access Backup FC FC Subsystems FC ifcp Gateway Layer 3 ifcp Gateways or es Layer 3 New Deployments Remote Backup Outsourcing Integration ifcp Gateway with Layer 3 and IP Man/Wan Data Center to Data Center Mirroring, Replication Consolidation Layer 3 ifcp Gateways or es FC FC FC FC Subsystems Data Center B FC FC es Page 17 Remote Replication Using FCIP IP Disk FCIP Gateway System FC Fabric Description Metro Network Element (SONET, WDM, IP ) FCIP solutions may combine elements of: FCIP encapsulation IP routing Optical IP interfaces FC switching! FCIP Gateway encapsulates FC frames into IP! Multi-point connectivity over IP MAN/WANs! Can interconnect s up to several hundred km (+++) IP MAN / WAN Benefits! Preserves FC infrastructure and investments! Only edge devices need to be aware of FCIP encapsulation! Takes advantage of existing IP/optical networks IP Optical (OC-48c, OC-12c, or Gigabit ) Gigabit Fibre Channel (10BT or 100BT) Equipment for Solution Page 18

7 Remote Replication: Native IP WAN or MAN Page 19 Offsite Data Replication Schemes For Native! Based Replication! Varied software functionality! Supports heterogeneous storage! Appliance! Replication appliance resides in storage network! Supports heterogeneous storage! Disk to Disk! independent data movement Page 20 Based Replication SWITCH Replication IP WAN Replication TAPE SWITCH IP STORAGE DEVICES Page 21

8 Appliance Based Replication IP WAN TAPE SWITCH STORAGE APPLIANCE STORAGE DEVICE Page 22 Disk Based Replication IP WAN or MAN Page 23 Example: Disaster Recovery with Remote Copy Production X X X X Snapshot Production Site #1 Corporate WAN Cluster server IP, WAN or MAN Read/write Standby Remote Remote Snapshot Read-only Read/write Benefits: Failover allows business continuance when primary server site fails. Failback allows seamless resumption of business operation Fail over and fail back allows users to define business rules about continuing data access in case of site failure Production Acting Snapshot Page 24

9 Summary! Native disk and tape devices, in conjunction with standard backup software deliver automated data protection throughout the IT environment! Contemporary snapshot technology and IP storage can eliminate backup windows! IP storage delivers flexibility in deploying offsite replication scenarios! IP storage leverages current investments and makes disaster recovery truly affordable Page 25