HP XP20000XP24000 Disk Array - Manual (Page 21)

• The maximum possible total number of XP Snapshot pools and XP Thin Provisioning pools is 32.
• XP Thin Provisioning pool-VOLs cannot be used as XP Snapshot pool-VOLs, and vice versa.
Monitoring and Tuning Resources
This section describes the function to accumulate statistical information, such as the information shown in
“ XP Thin Provisioning Window ” on page 38 and the information displayed in Performance Monitor, and
describes the function to support XP Thin Provisioning management.
Monitoring Usage Rates
You can use the XP Thin Provisioning window to display V-VOL and pool usage rates, so that you can
monitor the pool free space and estimate when you will need to increase the pool capacity. For a
description of the XP Thin Provisioning window, see “ XP Thin Provisioning Window ” on page 38.
The following table shows how you can display the usage rates. You can use either the XP Thin
Provisioning window or RAID Manager. For more information on RAID Manager, see HP StorageWorks
XP RAID Manager User's Guide.
Table 7 How To Display Usage Rates
Display Item How To Display Usage Rates
V-VOL Usage Rates
• You can display the V-VOL usage rates for a V-VOL. The V-VOL usage rate is
the used V-VOL capacity to all the V-VOL capacity.
• You can display the current V-VOL usage rates.
• You can view the changes in the V-VOL usage rates by also using HP
StorageWorks XP Command View Advanced Edition Software.
Pool Usage Rates
• You can display the pool usage rates of each V-VOL per a pool.
• You can display the current pool usage rates.
• You can view the changes of the pool usage rates by also using HP
StorageWorks XP Command View Advanced Edition Software.
Figure 4 shows an example of the changes in the pool usage rates.
XP24000 Thin Provisioning Software User's Guide 21