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тАО10-12-2007 11:21 AM
тАО10-12-2007 11:21 AM
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
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
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тАО10-13-2007 12:50 AM
тАО10-13-2007 12:50 AM
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
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
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тАО10-13-2007 06:46 AM
тАО10-13-2007 06:46 AM
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
- one MSA30
- one MSA20
- two MSA20
.
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тАО10-16-2007 10:47 AM
тАО10-16-2007 10:47 AM
Solution
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.
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.
The opinions expressed above are the personal opinions of the authors, not of Hewlett Packard Enterprise. By using this site, you accept the Terms of Use and Rules of Participation.
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