Pool status, Balancing i/o load across the pool, Pool status balancing i/o load across the pool – HP StorageWorks XP Remote Web Console Software User Manual

Page 16

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Table 3 SIM Reference Codes (continued)

Various Types of
Reports

Thresholds or
Values

Events

Codes (XXX is
pool ID)

Completion report to
Remote Web Console:
Yes.

Information to the
operator: Yes with
SOM741.

Report to the host: Yes

5% 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: No

SIM is reported
even if the V-VOLs
are different

Report to the host: No

Not applicable

V-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 Codes

Definition

Status

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)

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.

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

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