8x00 Enterprise Virtual Array Updating Product Software Guide XCS 6.110 (5697-6782, June 2007)

a snapshot, snapclone, or a D R group member. In the output, logical unit number (LUN) is used

interchangeably with virtual disk.

Virtual disks must be presented to a host to be seen by HP Command View EVAPerf. H owever,

replication volumes on the replication system are visible without being presented.

Because the storag e system controllers a re active/a ctive, one controller is preferre d (the owning

controller) but requests c an still be processed by the other controller (the proxy controller). In

active/active controllers, all host requests are logged by the receiving controller only, whether owning

or proxy. Thus, all request rate and data rate activity for a virtual disk is the sum of both controllers.

The statistics you should use to determine the virtual disk activity are listed in Table 6.

Pre-upgrade tasks