
28.13
InForm OS Version 2.2.4 Command Line Interface Reference
EXAMPLES
In the following example, physical disks with average service times exceeding 50 milliseconds
are identified and their chunklets automatically relocated to rebalance the physical disks’ load.
cli% tunepd –vvlayout –chstat –movech auto avgsvct 50
Collecting I/O statistic for physical disks (PDs) ...
PdId Pos APort BPort Iops Kbps Svct(ms) IOSz(KB)
---- ------ -------- -------- -------- -------- ---------- ------------
29 1:3:3 0:4:1 1:5:1* 231.9 8668.8 87.0 37.4
The following physical disks were identified as candidates
for load balancing: 29
Layout of related virtual volumes (on candidate physical disks).
VvId VvName LdId LdName Avail RAID PdId
------ ------------- ------ ----------------- ------- ------- ----
0 admin 5 admin.usr.2 cage 1 0,2,4,6,8,10,12,14,17,19
23,25,27,29
1 vv0 8 vv0.usr.2 cage 1 0,2,4,6,8,10,12,14,17,19
23,25,27,29
2 vv1 11 vv1.usr.1 mag 5 2,6,19,29
Enable statistic collection for chunklets on PD 29
Collecting statistic for chunklets of candidate PDs...
Disable statistic collection for chunklets on PD 29
Statistic of chunklets of candidate PDs:
PdId PdCh LdId LdName LdCh Iops Kbps Svct(ms) IOSz(KB)
----- ------ ------ ---------------- ------ -------- -------- ----------- ------------
29 20 8 vv0.usr.2 29 22.8 842.7 109.9 37.0
29 19 8 vv0.usr.2 17 22.0 842.7 113.7 38.2
29 18 8 vv0.usr.2 5 7.8 282.3 117.0 36.3
29 26 11 vv1.usr.1 23 42.0 1561.6 77.0 37.2
29 25 11 vv1.usr.1 19 37.8 1401.4 70.2 37.1
29 24 11 vv1.usr.1 15 39.5 1454.1 73.3 36.8
29 23 11 vv1.usr.1 11 35.3 1333.6 73.1 37.7
29 22 11 vv1.usr.1 7 26.5 1018.1 76.8 38.4
Statistic of Logical disks of candidate PDs:
PdId LdId LdName Iops Kbps Svct(ms) IOSz(KB)
------ ----- ---------------- -------- --------- ---------- ------------
29 8 vv0.usr.2 52.6 1967.8 112.5 37.4
29 11 vv1.usr.1 181.1 6768.8 74.0 37.4
Statistic of candidate physical disks:
PdId Pos APort BPort Iops Kbps Svct(ms) IOSz(KB)
----- ------- ------- -------- -------- -------- ---------- ------------
29 1:3:3 0:4:1 1:5:1* 233.7 8736.6 82.7 37.4
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