HP StorageWorks XP Performance Advisor Software v4.6 User and Troubleshooting Guide (T1789-96094, June 2010)

Viewing RAID group information
Click a RAIDGroup item in the LDEV table to view the RAID Group details and disk mechs details. The
Disk Mech displays the 2-way and 4-way parity group concatenation. The 2-way parity group
concatenation can be configured as either 2D+2D or 7D+1P. The 4-way parity group concatenation
is configured as 7D+1P. The system supports RMLIB version 1.12.04 and later. If there is an LDEV
that is associated with two RAID groups, data about both groups are displayed.
If LDEVs are associated with multiple RAID groups (such as in 4D+4D configurations where the LDEV
is mirrored on two different RAID groups), these multiple RAID groups are treated as separate sets of
items. For example, if you have an LDEV with RAID group 1-1 1-2, you must select 1-1 1-2 in the
drop-down menu. An LDEV mapped to 1-1 1-2 is treated separately from a RAID group mapped only
to 1-1 or only to 1-2.
You can also view detailed information for a RAID group, like the data transfer and backend transfer
information, average and maximum read response, average and maximum write response for each
LDEV. Click the corresponding RAID Group ID in the CLPR window. The line above the RAID group
table indicates the hierarchical information of the selected RAID group. For more information on view
CLPR information, see “CLPR detail view” on page 206.
Viewing THP Pool Occupancy information
The XP Thin Provisioning (THP) volumes that belong to a THP Pool are displayed as
THP-PID(<poolid>), and Snapshot volumes that belong to a Snapshot pool are represented as
Snap-PID(<pool id>), under RAIDGroup in the LDEV table. Click a THP-PID(<poolid>) to
view the THP pool occupancy information, which includes the mapping between the pool volumes
(real LDEVs) and the V-VOLs.
DescriptionScreen elements
ID of the pool (pool number)THP Pool ID
Status of the THP Pool
• 0: Undefined/Creating/Deleting – Specified pool
does not exist completely.
• 1: Normal
• 2: Pool capacity beyond threshold
• 3: Pool capacity reached 100% of the pool
• 4: Failure, cannot show further information for the
pool
THP Pool Status
A user configurable pool threshold (varying between
5% - 95% in increments of 5%). The default value is
70%. This is the high water mark for the pool.
POOL Threshold 1
Viewing XP arrays resources204