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
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 relocation 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
Total pages of tier 2.
Capacity
information
No
Yes
Tier2 Total
Total pages of tier 3.
Capacity
information
No
Yes
Tier3 Total
Pages assigned to tier 1 at the start of tier
relocation.
Capacity
information
Yes
Yes
Tier1 Used
94
Configuring thin provisioning