HP XP P9500 Storage - Manual (Page 119)

Monitoring total THP-VOL subscription for a pool
You can configure the Subscription Limit of total THP-VOL capacity to pool capacity. This prevents
a new THP-VOL capacity that exceeds the configured subscription limit from being allocated and
is associated to the pool. If you specify more than 100% as the Subscription Limit or the subscription
limit is not set, you must monitor the free capacity of the pool because it is possible that writes to
the THP-VOLs may exceed pool capacity. For details about the Subscription Limit, see
“Create
Pools window” (page 253) .
The used value displayed on the cell for Current in the Subscription (%) is truncated after the decimal
point of the calculated value. Therefore, the actual percentage of THP-VOL assigned to the pool
may be larger than the value displayed on the window. If you create a new THP-VOL of the same
size as the existing THP-VOL, the larger size of capacity which is displayed on the Current cell is
necessary.
For example, if 262,668 Cyl V-VOL is assigned to a 41,574 cylinders pool, the capacity (%) is
calculated as follows:
(262668÷41574)x100=631.80....(%)
In this case, 631 (%) is displayed on the cell for Current in the Subscription (%). If you create a
new V-VOL of the same size as the existing V-VOL, 632 (%) or more remaining capacity is necessary.
Changing pool thresholds
1. In the Remote Web Console main window, in the Storage Systems tree, select Pool.
The pool name appears below Pool.
2. From the Pools table, select the pool with the threshold you want to change.
To select multiple pools that are consecutively listed, highlight all of the pools to be selected
and press the Shift key. To select separate pools, click each pool while pressing the Ctrl key.
3. Click More Actions, and then select Edit Pools.
4. In the Edit Pools window, check Warning Threshold or Depletion Threshold.
5. Type the threshold values in the text box.
The threshold value can be within the range of values indicated below the text box. The
Depletion Threshold value can be equal to or greater than the Warning Threshold.
NOTE: A SIM code is reported when the pool usage capacity exceeds the threshold changes.
6. Click Finish.
7. In the Confirm window, confirm the settings, in Task Name type a unique name for this task
or accept the default, and then click Apply.
If Go to tasks window for status is checked, the Tasks window opens.
Changing the pool subscription limit
1. In the Remote Web Console main window, in the Storage Systems tree, select Pool.
2. From the Pools table, select the pool with the subscription limit you want to change.
To select multiple pools that are consecutively listed, highlight all of the pools to be selected
and press the Shift key. To select separate pools, click each pool while pressing the Ctrl key.
3. Click More Actions, and then select Edit Pools.
4. In the Edit Pools window, check Subscription Limit, and then type the subscription limit
percentage.
If the subscription limit is blank, then it is disabled, and any amount of THP V-VOLs can be
created regardless of the pool free capacity.
5. Click Finish.
Thresholds 119