HP StorageWorks P9000 Performance Advisor Software v5.3 User and Troubleshooting Guide (T1789-96322, August 2011)

IMPORTANT:

Combined backend transfers:

In Thin Provisioned environments, the overall backend transfers at the RAID group level are reported

using combined backend transfer metric. For a Thin Provisioned V-Vol where the ThP pool is associated

with multiple RAID groups, the backend transfers are not tracked to the corresponding RAID group

level. The backend transfers contributed by all V-Vols in a ThP pool are combined and reported as

combined backend transfers for each participating RAID group. It implies that the combined backend

transfer is shared among each of the participating RAID groups.

The following table lists the details displayed in the Statistics section.

Additional detailsStatistics section

• The port ID.

The port type, such as Fibre, Ficon, Escon, or FCoE (applicable only

for P9000 disk arrays) is also displayed beside the port ID.

• For an XP disk array, the CHA and MPs associated with a particular

port.

For a P9000 disk array, only the CHA associated with a particular

port.

Statistics for Frontend category

• The total Cache size.

• The side file usage.

Statistics for Cache category

• The RAID group number.

• The associated DKA pair for a particular RAID group.

• The associated ThP pool IDs, if they are configured in an XP or a

P9000 disk array. If not configured, – (dash) appears. NA appears

for the XP disk arrays prior to the XP24000 Disk Array.

• The corresponding RAID level for a particular RAID group.

Statistics for Backend category

The MP blade ID, includes the cluster # and the blade location for the

MP blade.

Statistics for MP Blade category

NOTE:

Applicable only for the P9000

disk arrays.