Hi Cleanur
I had the same situation on 2 3Par 7400 Systems, both with 144 Disk 900GB 10k.
Both installed one year ago, both with the same problem.
The first CPG's and LUN's have been created initially with 3Par OS Release 3.1.2 in 2013
This LUNS had and have a very poor performance.
Actual the Inservs are on OS Release 3.1.3.
Luns witch are now created in a new CPG with OS release 3.1.3 runs excellent.
The CPG and LUNS , however, were all created equal:
createcpg -t r6 -ha cage -ssz 12 -ss 128 -sdgs 120g -ch first -p -devtype FC -rpm 10 FC10k_Raid6_10D2P_VMFS
createvv -cnt 1 -spt 512 -hpc 8 -i 11 -tpvv FC10k_Raid6_10D2P_VMFS VMFS01 16T <- created in 2013 with 3.1.2 -> poor
createvv -cnt 1 -spt 512 -hpc 8 -i 12 -tpvv FC10k_Raid6_10D2P_VMFS VMFS02 16T <- created in 2013 with 3.1.2MU2 -> good
The solution was:
update to Inform 3.1.2MU2 (now it is 3.1.3)
remove all LUN's an CPG's
Create all new
To see what i mean:
============================ Poor Performance LUN ====================================
--------------------- Random read, 8k Blocksize, Queue Size 64 -------------------
09:24:24: ios = 6707.6 mbytes = 54.9 respTime = 9.519
09:24:29: ios = 5505.0 mbytes = 45.1 respTime = 11.641
09:24:34: ios = 5299.8 mbytes = 43.4 respTime = 12.082
09:24:39: ios = 5415.4 mbytes = 44.4 respTime = 11.808
09:24:44: ios = 5462.2 mbytes = 44.7 respTime = 11.730
09:24:49: ios = 5491.4 mbytes = 45.0 respTime = 11.631
09:24:54: ios = 5586.6 mbytes = 45.8 respTime = 11.482
09:24:59: ios = 5423.6 mbytes = 44.4 respTime = 11.774
09:25:04: ios = 5336.6 mbytes = 43.7 respTime = 12.012
09:25:09: ios = 4392.8 mbytes = 36.0 respTime = 14.535
09:25:14: ios = 5389.0 mbytes = 44.1 respTime = 11.900
09:25:19: ios = 5452.2 mbytes = 44.7 respTime = 11.711
09:25:24: ios = 5047.0 mbytes = 41.3 respTime = 12.701
09:25:29: ios = 5252.2 mbytes = 43.0 respTime = 12.171
09:25:34: ios = 5285.8 mbytes = 43.3 respTime = 12.122
09:25:39: ios = 5377.8 mbytes = 44.1 respTime = 11.875
09:25:44: ios = 5055.6 mbytes = 41.4 respTime = 12.680
09:25:49: ios = 5342.6 mbytes = 43.8 respTime = 11.958
09:25:54: ios = 5336.4 mbytes = 43.7 respTime = 12.001
09:25:59: ios = 5296.6 mbytes = 43.4 respTime = 12.076
09:26:04: ios = 4596.4 mbytes = 37.7 respTime = 13.935
09:26:09: ios = 5266.2 mbytes = 43.1 respTime = 12.133
09:26:14: ios = 5360.6 mbytes = 43.9 respTime = 11.954
09:26:19: ios = 5018.6 mbytes = 41.1 respTime = 12.738
--------------------- Sequiental read, 256k Blocksize, Queue Size 64 -------------
09:26:56: ios = 2032.0 mbytes = 532.7 respTime = 31.539
09:27:01: ios = 1801.8 mbytes = 472.3 respTime = 35.492
09:27:06: ios = 1974.0 mbytes = 517.5 respTime = 32.521
09:27:11: ios = 2165.8 mbytes = 567.8 respTime = 29.580
09:27:16: ios = 1867.6 mbytes = 489.6 respTime = 34.215
09:27:21: ios = 1807.0 mbytes = 473.7 respTime = 35.431
09:27:26: ios = 1703.6 mbytes = 446.6 respTime = 37.499
09:27:31: ios = 1632.4 mbytes = 427.9 respTime = 39.250
09:27:36: ios = 1743.0 mbytes = 456.9 respTime = 36.636
09:27:41: ios = 1931.8 mbytes = 506.4 respTime = 33.226
09:27:46: ios = 1755.4 mbytes = 460.2 respTime = 36.283
09:27:51: ios = 1835.8 mbytes = 481.2 respTime = 34.939
09:27:56: ios = 1782.6 mbytes = 467.3 respTime = 35.940
09:28:01: ios = 1816.2 mbytes = 476.1 respTime = 35.233
09:28:06: ios = 1773.0 mbytes = 464.8 respTime = 36.219
09:28:11: ios = 1921.0 mbytes = 503.6 respTime = 33.187
09:28:16: ios = 1816.2 mbytes = 476.1 respTime = 35.312
09:28:21: ios = 1888.6 mbytes = 495.1 respTime = 33.877
09:28:26: ios = 1920.2 mbytes = 503.4 respTime = 33.292
09:28:31: ios = 1918.0 mbytes = 502.8 respTime = 33.293
09:28:36: ios = 1849.4 mbytes = 484.8 respTime = 34.679
09:28:41: ios = 1910.8 mbytes = 500.9 respTime = 33.454
09:28:46: ios = 1623.6 mbytes = 425.6 respTime = 39.420
============================ Good Performance LUN ====================================
--------------------- Random read, 8k Blocksize, Queue Size 64 -------------------
16:06:25: ios = 9665.8 mbytes = 79.2 respTime = 6.631
16:06:30: ios = 9563.2 mbytes = 78.3 respTime = 6.702
16:06:35: ios = 9667.2 mbytes = 79.2 respTime = 6.610
16:06:40: ios = 9616.0 mbytes = 78.8 respTime = 6.667
16:06:45: ios = 9744.2 mbytes = 79.8 respTime = 6.554
16:06:50: ios = 9534.6 mbytes = 78.1 respTime = 6.722
16:06:55: ios = 9457.2 mbytes = 77.5 respTime = 6.749
16:07:00: ios = 9479.8 mbytes = 77.7 respTime = 6.760
16:07:05: ios = 9359.8 mbytes = 76.7 respTime = 6.829
16:07:10: ios = 9805.4 mbytes = 80.3 respTime = 6.537
16:07:15: ios = 9734.0 mbytes = 79.7 respTime = 6.560
16:07:20: ios = 9724.8 mbytes = 79.7 respTime = 6.588
16:07:25: ios = 9722.2 mbytes = 79.6 respTime = 6.565
16:07:30: ios = 9762.6 mbytes = 80.0 respTime = 6.567
16:07:35: ios = 9499.8 mbytes = 77.8 respTime = 6.732
16:07:40: ios = 9652.4 mbytes = 79.1 respTime = 6.637
16:07:45: ios = 9149.0 mbytes = 74.9 respTime = 6.986
16:07:50: ios = 9525.6 mbytes = 78.0 respTime = 6.724
16:07:55: ios = 9790.2 mbytes = 80.2 respTime = 6.522
16:08:00: ios = 9863.0 mbytes = 80.8 respTime = 6.501
16:08:05: ios = 9797.4 mbytes = 80.3 respTime = 6.523
16:08:10: ios = 9849.4 mbytes = 80.7 respTime = 6.506
16:08:15: ios = 9791.6 mbytes = 80.2 respTime = 6.523
--------------------- Sequiental read, 256k Blocksize, Queue Size 64 -------------
16:23:56: ios = 6205.0 mbytes = 1626.6 respTime = 10.293
16:24:01: ios = 5763.8 mbytes = 1510.9 respTime = 11.115
16:24:06: ios = 6206.2 mbytes = 1626.9 respTime = 10.295
16:24:11: ios = 6224.8 mbytes = 1631.8 respTime = 10.294
16:24:16: ios = 6238.4 mbytes = 1635.4 respTime = 10.239
16:24:21: ios = 6235.4 mbytes = 1634.6 respTime = 10.271
16:24:26: ios = 5966.4 mbytes = 1564.1 respTime = 10.705
16:24:31: ios = 6022.8 mbytes = 1578.8 respTime = 10.651
16:24:36: ios = 6227.0 mbytes = 1632.4 respTime = 10.260
16:24:41: ios = 6243.0 mbytes = 1636.6 respTime = 10.263
16:24:46: ios = 6199.6 mbytes = 1625.2 respTime = 10.305
16:24:51: ios = 6218.4 mbytes = 1630.1 respTime = 10.306
16:24:56: ios = 6198.6 mbytes = 1624.9 respTime = 10.306
16:25:01: ios = 6248.0 mbytes = 1637.9 respTime = 10.250
16:25:06: ios = 6197.2 mbytes = 1624.6 respTime = 10.311
16:25:11: ios = 6216.4 mbytes = 1629.6 respTime = 10.308
16:25:16: ios = 6211.4 mbytes = 1628.3 respTime = 10.290
16:25:21: ios = 6198.2 mbytes = 1624.8 respTime = 10.338
16:25:26: ios = 5674.2 mbytes = 1487.5 respTime = 11.254
16:25:31: ios = 6251.2 mbytes = 1638.7 respTime = 10.251
16:25:36: ios = 6204.8 mbytes = 1626.6 respTime = 10.301
16:25:41: ios = 6253.6 mbytes = 1639.3 respTime = 10.248
16:25:46: ios = 6180.8 mbytes = 1620.3 respTime = 10.335