Viewing snapshot data capacity

Thin Image User Guide

Version
9.8.6
Audience
anonymous
Part Number
MK-98RD9020-16

(VSP 5000 series) You can use the raidcom command to view the snapshot data capacity for each P-VOL.

This capacity indicates the pool capacity which is used as snapshot data stored from the P-VOL, but it does not include all of the information required to manage snapshot data. Although snapshot data is assigned from the pool in 42 MB blocks, Thin Image stores snapshot data from a P-VOL in 256 KB blocks. Therefore, the snapshot data capacity is not always consistent with each pool’s used capacity.

The following example shows how to use the raidcom command to view snapshot data capacity.

#raidcom get ldev -ldev_id 640
Serial# : 63502
LDEV : 640
SL : 0
CL : 0
VOL_TYPE : OPEN-V-CVS
VOL_Capacity(BLK) : 2181120
VOL_Capacity(cyl) : 22720
NUM_LDEV : 1
LDEVs : 640
NUM_PORT : 1
PORTs : CL2-E-0 14 Linux_X86
F_POOLID : NONE
VOL_ATTR : CVS : VVOL : QS
:
TIER_Alloc_level : H
TIER#1_Alloc_rate : MAX : 50 : MIN : 30
TIER#3_Alloc_rate : MAX : 50 : MIN : 30
Snap_Used_Pool(MB) : 2181

For more information about the raidcom command, see the Command Control Interface Command Reference.