
Chapter 12. Performance considerations for Linux 467
eam managed
reqcap (blocks) 209715200
realextents 100
virtualextents 0
migrating 0
perfgrp PG0
migratingfrom -
resgrp RG0
==============Rank extents==============
rank extents
============
R1 85
R17 7
R18 8
Example 12-12 on page 466 shows the properties of the logical volume. The following
information can be discovered for the volume:
Occupies three ranks (R1, R17, and R18)
Belongs to volume group V17
Is 100 GB in size
Uses an extent allocation method (EAM) that is
managed by Easy Tier
Uses a standard storage allocation method (SAM)
Is a regular, non-thin provisioned volume
Collecting physical disk ...