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## Problem MSA1500cs

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Occasional Visitor

## Problem MSA1500cs

Sory for my bad English :)

I have a 24x750 Gb SATA disk on MSA1500cs .
I want to use it how ~16Tb logical drive...
The max LUN size is 2Tb ?
Then I have 8 2Tb logical drives...
I try to spanned it in one drive ... but the speed of copy files from drive is too low (8 Mb/s). If I create RAID 0 of this drives... then speed too low.

How I can do ~16Tb logical drive and don't reduse speed of transport of data ?:)
4 REPLIES
Honored Contributor
Solution

## Re: Problem MSA1500cs

Hello,

which raid level did you use? How did you configured the arrays and logical drives??

It depends on you configuration how fast it is. You should distribute the arrays / logical drives across the shelfs. Use RAID 5 or RAID 1 instead of RAID ADG. Use only one logical drive per array. You should create arrays with eight or twelve drives and create two or three logical drive with RAID 5 in it. I don't think that you can use 16 TB, because you can only handle 2 TB per logical drive. Because of the drive size, you can use 1,5 TB, or with bigger drives, you loose space if you want equal sized logical drives.

Hope this helps.

Best regards,
Patrick
Best regards,
Patrick
Occasional Visitor

## Re: Problem MSA1500cs

With RAID 5.
I create array A - all drives, and at this array I create 8 logical drives.
If I create Array of all drives and create 1 logical drive (10 Gb for test), when upload on this logical drive is 50Mb/s, download 10 Mb/s...
I afraid trouble in MSA1500 ... or HP proliant server.
Occasional Visitor

## Re: Problem MSA1500cs

I create 1 array of 3 phisycal drives (750Gb) ... create logical drive RAID 5 (100Gb) ... and speed too low again :(
Honored Contributor

## Re: Problem MSA1500cs

How did you test it??