Chapter 9. Advanced features for storage efficiency 465
IO_group_id 0
IO_group_name io_grp0
status online
mdisk_grp_id 1
mdisk_grp_name Multi_Tier_Pool
capacity 5.00GB
parent_mdisk_grp_id 1
parent_mdisk_grp_name Multi_Tier_Pool
copy_id 0
status online
mdisk_grp_id 1
mdisk_grp_name Multi_Tier_Pool
type striped
mdisk_id
mdisk_name
used_capacity 5.00GB
real_capacity 5.00GB
free_capacity 0.00MB
overallocation 100
easy_tier on
easy_tier_status active
tier ssd
tier_capacity 1.00GB
tier enterprise
tier_capacity 4.00GB
tier nearline
tier_capacity 0.00MB
compressed_copy no
uncompressed_used_capacity 5.00GB
parent_mdisk_grp_id 1
parent_mdisk_grp_name Multi_Tier_Pool
IBM_Storwize:ITSO_V5000:superuser>
9.2.16 IBM Storage Tier Advisor Tool
IBM Storage Tier Advisor Tool (STAT) is a Microsoft Windows console tool. If you run Easy
Tier in measure mode, the tool analyzes the extents and captures I/O profiles to estimate how
much benefit you can derive from implementing Easy Tier Automatic Data Placement with
additional MDisks tiers. If Automatic Data Placement Mode is already active, the analysis also
includes an overview of migrated hot data and advice about whether you can derive any
benefit from adding more Flash or Enterprise drives, for example.
The output provides a graphical representation of the performance data that is collected by
Easy Tier over a 24-hour operational cycle.
The tool comes packaged as an International Organization for Standardization (ISO) file,
which needs to be extracted to a temporary folder. The STAT can be downloaded from the
following link:
https://ibm.biz/BdEfrX
To Next Page
Loading...
Need help?
General