HP LeftHand P4000 SAN Solutions - Manual (Page 109)

Configuration guidance
The optimal and recommended number of storage items in a management group depend largely
on the network environment, the configuration of the SAN, the applications accessing the volumes,
and how you are using snapshots. However, the Configuration Summary can provide some broad
guidelines that help you manage the SAN to obtain the best and safest performance and scalability
for your circumstances. These guidelines are in line with HP tested limits for common SAN
configurations and uses. Exceeding these guidelines does not necessarily cause problems. However,
your performance may not be optimal, or in some failover and recovery situations, may cause
issues with volume availability.
Table 37 Volume and snapshot guidelines
Guidance Number
NOTE: The number is the total of volumes and snapshots combined.
Green Up to 1,000
Orange 1,001–1,500
Red 1,500 or more
Table 38 iSCSI sessions guidance
Guidance Number of sessions
Green Up to 4,000
Orange 4,001 – 5,000
Red 5,001 or more
Table 39 Storage systems in the management group
Guidance Number
Green Up to 20
Orange 21 — 30
Red 30 or more
Table 40 Storage systems in the cluster
Guidance Number
Green Up to 10
Orange 11 — 16
Red 17 or more
Best Practice summary overview
The Best Practice summary provides a reference about best practices that can increase the reliability
and/or performance of your SAN configurations. The Best Practice summary is available when
you create a management group, and is located on the Summary tab with the Configuration
Summary. If you have more than one management group on the SAN, each group is listed in the
summary.
NOTE: You can also view all the best practices in the Best Practice Summary pane on the SAN
Status Page.
Best Practice summary overview 109