HP XP24000/XP20000 Thin Provisioning Software User Guide (T5227-96015, November 2011)

Table 3 SIM Reference Codes (continued)
Various Types of
Reports
Thresholds or
Values
EventsCodes (XXX is
pool ID)
Completion report to
Remote Web Console:
Yes.
Information to the
operator: Yes with
SOM741.
Report to the host: Yes5% to 300% in 5%
increments
Level of free pool
capacity to free V-VOL
630XXX
(XXX is pool
ID)
Completion report to
Remote Web Console:
Yes
Default: 5%
If pool IDs are the
same, only one
capacity exceeded
V-VOL threshold
Information to the
operator: NoSIM is reported
even if the V-VOLs
are different
Report to the host: NoNot applicableV-VOL management
area cannot be saved to
a pool
640XXX (XXX
is pool ID)
Completion report to
Remote Web Console:
No
Information to the
operator: Yes
Pool Status
“Pool Status” (page 16) lists the pool status definitions.
Table 4 Pool Status
SIM CodesDefinitionStatus
If the pool usage level exceeds either
the variable or the fixed pool
Normal status. The pool usage level may exceed the
variable or fixed pool threshold.
Normal
threshold, the following SIM occurs.
620XXX or 621XXX (XXX is pool ID)
NonePool-VOL in the pool is blocked or being formatted.Warning
If the pool is full or an error occurs in
the pool, the following SIM occurs.
The pool is full or an error occurred in the pool,
therefore the pool is blocked.
Blocked
622XXX or 623XXX (XXX is pool ID)
Balancing I/O Load Across the Pool
When defining a pool, dedicate as many array groups as needed to support the I/O load of the
planned V-VOLs.
When adding capacity to an XP Thin Provisioning pool defined using firmware 60-05-0X or later,
the rebalancing function moves some existing data for V-VOLs from older pool volumes to the
newest pool volumes. The rebalance function rebalances each V-VOL's data (pages assigned)
evenly across each pool volume in the pool.
When adding capacity to the pool defined using firmware earlier than 60-05-0X, typically add
about the same amount of space as defined originally.
16 About XP Thin Provisioning Operations