1. Storage Area Networks
Back up and Management

2. Introduction The Problems Large Amounts of Data Shared Resources
Need for interference-free back up
Replication Flood
Archival of data
Retrieval of state data

3. SAN Basics Storage Area Network Platforms Applications Wires
Fibre Channel (focus)
iSCSI
Platforms
Applications

4. Platforms MS Windows Server families (2000, NT, 2003)
Sun Solaris versions 2.6 through 2.8
HP-UX version 10.2 and higher
IBM AIX version 4.2 and higher
Compaq Tru64 Unix version 4.0F and higher
Compaq Open VMS version 7.2 and higher
Novell Netware version 4.11 and higher
SGI IRIX version 6.5 and higher
Sequent DYNIX version 4.5 and above
IBM OS/390 Mainframe MVS, or Z/OS
LINUX

5. SAN Required Applications
IBM HACMP (cluster)
Solaris Cluster 3.0 (cluster)
Compaq/HP TruCluster (cluster)
Oracle Failsafe Cluster (cluster)
Oracle Real Application Clusters (cluster)
Microsoft Cluster Server (MSCS) (cluster)
HP MC/Serviceguard Clusters (cluster)
Novell Netware Cluster Services (cluster)
Veritas NetBackup (backup application)
Veritas Backup Exec Enterprise Edition (backup application)
Computer Associates ARCserve with SLO option (backup application)
Computer Associates ARCserveIT (backup application)
Legato NetWorker (backup application)
CommVault (backup application)

6. Candidates Any system w/ 16+ Servers
Systems w/ Large Databases (<16 servers)
Non-candidates
Web Servers
All PCs
Less than 10 GB Storage
Any that don’t require fast access to data

7. Justification Why use a SAN? Reduce system administration time
Reduction of traffic on LAN
Fast access (approach speed of light)

8. Topologies

9. Path Management Something has to track all of these paths
Path Management Software
Chooses paths based on traffic flow and availability
Can be customized to restrict from specific edges (policy-based)

10. Hardware Host Bus Adapter (HBA) Gigabit Interface Converter
Short Wave
Long Wave (up to 100 KM)
Host Bus Adapter Drivers
Cables
SAN hubs, switches, & routers
Storage

11. SAN Manager Software Datacore SANSymphony Example Cost
How do you think vendors price this software?

12. SAN Manager Software Datacore SANSymphony Example Cost
How do you think vendors price this software?
By how much it manages
Ex. $30k base + $4k / terabyte
Requires dedicated server as intermediary

13. SAN Manager Software Features QoS
Class of Service restrict b/w - priority based
Load balancing
Backup: Asynchonous IP Mirroring (AIM)
Data Mirroring
Disc Allocation –
Dynamic JIT Allocation
Unused space remains in a global pool

14. Tie it Together SAN incorporated Incremental Update & Backup
Restrict lesser priority access
Lower primary at failover
Raise backup at failover
Low QoS to partners during high traffic periods & failover
Maintain state locally & stored for quick recovery

15. Final Thoughts & Questions
Your questions?