HP XP Racks - Manual (Page 94)

Notes on performing monitoring
•
You can collect a new cycle of monitoring data while performing relocation.
•
After monitoring stops, the tier range is automatically calculated.
•
The latest available monitoring information, collected just before the relocation is performed,
is used for relocation processing.
•
When relocation is performed, the status of the monitor information must be valid (VAL).
Downloading the tier relocation log file
The Storage Administrator (Provisioning) role is required to perform this task.
You can download the log file that contains the results of past tier relocations. See “Tier relocation
log file contents” (page 94) for information about the contents of the log.
1. Use one of these methods to select Tier Relocation Log Export.
•
Select Pool in the Storage Systems tree. In the Pool tab, click More Actions and select Tier
Relocation Log Export.
•
From the Actions menu, select Pool management > Tier Relocation Log Export.
2. In the dialog box, specify a folder for the log file you download and click Save.
If you change the file name from the default, make sure the file name is appended with the
.tsv
extension before saving the file.
Tier relocation log file contents
In every cycle in which tier relocation is performed, information about each pool and V-VOL is
exported to the tier relocation log. The time required to incorporate the latest tier relocation results
may be approximately 30 minutes. The tier relocation log file is tab-delimited and contains the
following information.
Description Type of information Does each V-VOL
output the log
information? Does each pool
output the log
information? Item
ID of each cycle of a tier relocation. Common Yes Yes Cycle ID
A common ID is allocated to pool logs
and V-VOL logs that are collected in one
cycle.
Version number of the tier relocaion log
format. Common Yes Yes Log Format Version
Serial number of the storage system. Common Yes Yes DKC Serial Number
Following log types are displayed. Common Yes Yes Log Type
POOL: Log information of each pool.
V-VOL: Log information of each V-VOL.
LDEV ID of a V-VOL exported to a log. Common Yes No LDEV ID
Pool ID of a pool exported to a log. Common Yes Yes Pool ID
The number of V-VOLs to be processed
when tier relocation is performed. Common No Yes Num of V-VOLs
Value of the tiering policy. Values from
All(0) to Level31(31) can be displayed. Tier relocation result Yes No Tiering Policy
Total pages of tier 1. Capacity
information No Yes Tier1 Total
94 Configuring thin provisioning