Sun Microsystems 7000 - Manual (Page 10)

Interface Configuration Example
2.3 Pool
Configuring the pool storage RAID layout is a balance between availability, capacity and performance.
As can be seen during pool configuration, the Sun Storage 7000 Unified Storage System BUI gives a
description plus the relative tradeoffs around availability, capacity and performance. The administrator
must weigh all three factors when deciding on a data profile. For VMware ESX and its highly random
I/O nature, the best performance is usually found with the Mirror profile.
Also, depending on the Sun Storage 7000 Unified Storage System model, you may also have to decide
on a data profile for any Log SSDs that are present in the configuration. Striping the Log devices
should give the best performance. Mirroring the Log Devices will give an extra degree of Log
availability; however, while losing a Log Device may impact write performance, it will not impact
overall availability of the pool. The writes will go directly to disk, but possibly at lower performance
levels.
2.4 Projects and Shares
Projects and shares should be configured to present NFSv3 mount points or iSCSI LUNs to the
VMware ESX servers. The number of shares will be dependent on ESX storage sizing needs and other
business factors such as snapshot and cloning granularity. Also, project layouts should be considered if
replication is going to be implemented. The Sun Storage 7000 Unified Storage System replicates at the
10 Using Sun Storage 7000 Unified Storage System With VMware ESX Server
Figure 7: Interface Example