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P410i ld alignment when Full Stripe Size: 768 KB

 
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maaax3
Occasional Visitor

P410i ld alignment when Full Stripe Size: 768 KB

Hi there!

 

I have here 4 PD and want to build a raid5 using a P410i,

Strip Size: 256 KB. This results in Full Stripe Size: 768 KB.

 

When I create logical drives now, the resulting possible sizes

(hpacucli controller slot=0 create type=ld drives=... raid=5 size=..)

are always multiples of 4MB with offset 3MB => 3+(N*4)=15, 19, 23MB,..

starting from 15MB.

 

e.g.:

Logical Drive: 12
Size: 23 MB
Fault Tolerance: 5
Heads: 255
Sectors Per Track: 32
Cylinders: 6
Strip Size: 256 KB
Full Stripe Size: 768 KB

This is ok for the first LD, but the subsequent LDs are misaligned.

Am I right?

 

cheers,

Markus

 

1 REPLY
maaax3
Occasional Visitor
Solution

Re: P410i ld alignment when Full Stripe Size: 768 KB

I've checked it. LDs are created well aligned