HP StorageWorks XP Remote Web Console Software - Manual (Page 18)

Table 4 Pool Status
SIM Codes Definition Status
If the pool usage level exceeds either
the variable or the fixed pool
threshold, the following SIM occurs.
620XXX or 621XXX (XXX is pool ID) Normal status. The pool usage level may exceed the
variable or fixed pool threshold. Normal
None Pool-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.
622XXX or 623XXX (XXX is pool ID)
The pool is full or an error occurred in the pool,
therefore the pool is blocked. Blocked
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.
Interoperability with Other Products and Functions
In certain cases, XP Thin Provisioning V-VOLs and pool-VOLs can be used in conjunction with other
XP software products.
Table 5 (page 18) lists the operations that are permitted and not permitted.
Note that XP Thin Provisioning supports OPEN-V volumes only.
Table 5 Using XP Thin Provisioning with Other Products
Not Permitted Permitted Option Name
None Cache Residency Manager
For more information, see the HP
StorageWorks
XP24000/XP20000 Cache
Residency Manager User Guide.
Using a V-VOL as a Snapshot
S-VOL, or Pool-VOL.
Using an XP Thin Provisioning
pool-VOLs as a Snapshot P-VOL,
S-VOL, or Pool-VOL.
Increasing the capacity of V-VOL
used by this program product
Discarding zero data, and running
XP Snapshot to the same V-VOL
(This operation will be prohibited
by the microcode).
Using a V-VOL as a Snapshot
P-VOL.
The maximum total number of both
XP Snapshot and XP Thin
Provisioning pools per storage
system is 128. Snapshot pool limits
are reduced by the number of XP
Thin Provisioning pools.
XP Snapshot
For more information, see the HP
StorageWorks
XP24000/XP20000 Snapshot
User Guide.
Use on XP Thin Provisioning
pool-VOLs. Performing operations on V-VOLs. Data Retention Utility
For more information, see the HP
StorageWorks
XP24000/XP20000 Data
Retention Utility User Guide.
18 About XP Thin Provisioning Operations