PD usage on cages skewed?

[grokk1234]

Hi

Im new to 3PAR , and looking at the MC of %Usage and %Free on the cages is skewed.
We have added 3 cages before vacation. I ran tunesys after vacation and it got the 3 cages to 42%, but more runs of tunesys does'nt do anything.
We have a mix of 15K and 10K FC and 200GB SSD.

Maybe im doing it wrong or this is how it works. i don't know

[Josh26]

What do your CPGs look like? It could well be that you have on which is limited to the older disks.

[afidel]

Tunesys is broken in 3.1.2 through 3.1.3mu1, your cpg's need a -rpm specification that will break other tools so it needs to be added, tunesys run, then removed. Contact support for details. Literally just got done with this after a large upgrade when two runs of tunesys still left us majorally imbalanced.

[grokk1234]

Josh26: Checked the CPGs and they all the the added disks.

afidel: This how our CPG parameters look now.
showcpg -sdg
--------(MB)--------
Id Name Warn Limit Grow Args
0 System-FC_r1 - - 65536 -ssz 2 -ha cage -t r1 -p -devtype FC -rpm 15
1 AO1_CPG_R5_SSD200_T0 563200 - 16384 -t r5 -ssz 4 -ss 64 -p -devtype SSD -rpm 150
2 System-SSD_r1 - - 16384 -ss 32 -p -devtype SSD -rpm 150
3 AO1_CPG_R5_FC300_T1 - - 8192 -t r5 -ssz 4 -ss 128 -p -devtype FC -rpm 15
4 CPG_R5_SSD200 - - 16384 -t r5 -ssz 4 -ss 64 -p -devtype SSD -rpm 150
5 CPG_R1_FC300 - - 65536 -t r1 -ha cage -ssz 2 -ss 256 -ch first -p -devtype FC -rpm 15
6 AO5_CPG_R5_FC300_T1 - - 65536 -t r5 -ssz 4 -ss 128 -p -devtype FC -rpm 15
7 CPG_R6_FC300 - - 65536 -t r6 -ha cage -ssz 8 -ss 128 -ch first -p -devtype FC -rpm 15
8 AO2_CPG_R5_SSD200_T0 204800 - 16384 -t r5 -ssz 4 -ss 64 -p -devtype SSD -rpm 150
9 AO6_CPG_R6_FC900_T1 - - 114688 -t r6 -ha cage -ssz 8 -ss 128 -ch first -p -devtype FC -rpm 10
10 AO2_CPG_R6_FC900_T1 - - 32768 -t r6 -ss 128 -p -devtype FC -rpm 10
11 AO3_CPG_R5_FC300_T1 - - 65536 -t r5 -ha cage -ssz 4 -ss 128 -ch first -p -devtype FC -rpm 15
12 AO3_CPG_R5_SSD200_T0 102400 - 16384 -t r5 -ssz 4 -ss 64 -p -devtype SSD -rpm 150
13 A04_CPG_R1_FC300_T1 - - 16384 -t r1 -ha cage -ssz 2 -ss 256 -ch first -p -devtype FC -rpm 15
14 A04_CPG_R6_FC900_T2 - - 16384 -t r6 -ha cage -ssz 8 -ss 128 -ch first -p -devtype FC -rpm 10
15 A04_CPG_R1_SSD200_T0 20480 - 16384 -ss 32 -p -devtype SSD -rpm 150
16 AO5_CPG_R5_SSD200_T0 1024000 - 16384 -t r5 -ssz 4 -ss 64 -p -devtype SSD -rpm 150
17 FC_r1 - - 65536 -ssz 2 -ha cage -t r1 -p -devtype FC -rpm 15
18 FC_r6 - - 65536 -ssz 8 -ha cage -t r6 -p -devtype FC -rpm 15
19 SSD_r1 - - 16384 -ss 32 -p -devtype SSD -rpm 150
20 SSD_r5 - - 16384 -t r5 -ssz 4 -ss 64 -p -devtype SSD -rpm 150
21 FC_r5 - - 65536 -t r5 -ssz 4 -ss 128 -p -devtype FC -rpm 15
22 AO6_CPG_R5_SSD200_T0 972800 - 16384 -t r5 -ha cage -ssz 4 -ss 64 -ch first -p -devtype SSD -rpm 150
23 CPG_R6_FC900 - - 16384 -t r6 -ha cage -ssz 8 -ss 128 -ch first -p -devtype FC -rpm 10
24 SSD_r6 - - 16384 -ssz 6 -ha cage -t r6 -p -devtype SSD