already-robust platforms, Sun Microsystems adds business continuity solutions to ensure quick recovery from
unplanned downtime resulting from acts of nature, human errors, application errors, and malicious attacks.
StorageTek 9900 In-System Replication Suite
The StorageTek 9900 In-System Replication includes both ShadowImage and Copy on Write. In-System
Replication Suite along with the Sun StorageTek 9900 series, allows information to be protected and accessible
24x7. StorageTek 9900 ShadowImage In-System Replication software helps ensure continuous access to
information. ShadowImage In-System Replication software replicates large volumes of information within the
Sun StorageTek 9900 series without impacting service levels, timing out, or affecting performance levels. The
information volumes can then be split away from the host application and used for system backups, testing, and
data mining applications while your business continues to run at full capacity.
The high-speed, non-disruptive, copy-on-write technology of Sun's StorageTek 9900 Copy-on-Write Snapshot
software rapidly creates up to 14 point-in-time copies of any data volume
within a StorageTek 9900 series
systems
, without
i
mpacting host service or performance levels. Since Copy-on-Write Snapshot copies only
store the changed data blocks in the Copy-on-Write Snapshot storage pool, the volume of storage capacity
required for each Copy-on-Write Snapshot copy is substantially smaller than the source volume. As a result, a
significant savings is realized when compared with full cloning methods. The Copy-on-Write Snapshot copies
are fully read/write compatible with other hosts and can be used for rapid data restores, application testing and
development, data mining/data warehousing, or non-disruptive backup or maintenance procedures.
Dynamic Provisioning Software
Support
Dynamic Provisioning only support Open Systems (Open – V emulation). Currently it only supports
internal storage, but will be expanded to support external storage under UVM in phase 2 post GA
(TBD)
Best Fit
Best Fit on larger systems where the usage aggregation of a storage pool
across many spindles will demonstrate
largest performance optimization.
o
Each user gets access to a larger number of spindles
Best Fit for stable environments and large consistently growing files or
volumes. It’s best used for applications
such as enterprise databases and archival applications where capacity growth rates are
understood.
o
Oracle and other databases that can grow and automatically expand
Deferred storage purchase benefits will be limited with applications or file
systems that rapidly write in a sparse
fashion over all their volume’s allocation.
o
Some Open Systems applications and file systems do just that, so the
benefits can be application-
dependent.
File System Dependency – Benefits Quick Summary
Just the Facts
October 2007
56
Sun Confidential – For Internal Use and Authorized Partner Use Only
