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Re: MSA 1500 w/SCSI and SATA drives

 
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Jorge Cocomess
Super Advisor

MSA 1500 w/SCSI and SATA drives

Hi,

Currently, I have this MSA 1500cs with 4 shelves and all the shelves are loaded with 146GB 10K SCSI drives. I would like to expand this MSA 1500cs with 2 additional MSA20 shelves with SATA (500GB) drives. I believe this can be done and I need some additional space really soon. Eventually, I will buy another MSA 1500 with 8 shelves and load them up with SATA drives for our 3rd Tier/archive system.

Should I do this or not? Do you think I might have performance issue??

By the way, the current MSA is being used as our D2D backup SAN storage.

Thank you in advance.

Jorge
3 REPLIES 3
Rob Leadbeater
Honored Contributor

Re: MSA 1500 w/SCSI and SATA drives

Hi Jorge,

According to the QuickSpecs here:

http://h18000.www1.hp.com/products/quickspecs/11945_div/11945_div.html

you can have a maximum of 56 SCSI drives or 96 SATA drives. As you are already at the maximum 4 shelves, each with 14 SCSI drives, I don't think there's anywhere to plug in the MSA20 shelves...

Hope this helps,

Regards,

Rob
Uwe Zessin
Honored Contributor

Re: MSA 1500 w/SCSI and SATA drives

You are right. The following combinations on an MSA1500cs SCSI I/O module are possible:
- one MSA30
- one MSA20
- two MSA20
.
aboerup
Frequent Advisor
Solution

Re: MSA 1500 w/SCSI and SATA drives

Jorge,
Unfortunately the configuration you are running currently is maxed out for the capabilities of the MSA1500.
Each of the 4 SCSI channels on the MSA1500 can handle 1 MSA30 shelf or 2 MSA20 shelves.
If you are using this for a D2D storage point and you can afford to take one of the shelves offline for a while, you could disconnect one of your MSA30's and connect up to 2 MSA20's to that connection.