Be
very careful with IMC 4.3.0.71 when creating a new CPG.
When you create a new CPG, there is no more option to select the <Default> Step Size and it will automatically pick the lowest available value (32KiB) if you don't change it manually. RAID-5 default should be 128KiB.
here's the showcpg -sdg output of a CPG created using IMC 4.3.0.71
Code:
test-cpg-only - - 32768 -t r5 -ha cage -ssz 5 -ss 32 -ch first -p -devtype FC
To fix, edit the CPG in IMC and change the Step Size to 128KiB, it should change to this:
Code:
test-cpg-only - - 32768 -t r5 -ssz 5 -ss 128 -p -devtype FC
I opened a case w/ HP regarding this and they confirmed that it's a bug. There's also a customer advisory sent by HP today
http://alerts.hp.com/r?2.1.3KT.2ZR.%5fA ... 5fRTEHca00--Bigiron