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тАО09-02-2008 12:12 AM
тАО09-02-2008 12:12 AM
Second thing is that having one logical drive we assumed to see only one drive-letter in windows explorer. We assinged the letter X to our drive but we also see a second drive with the letter I. The two drives have the exact same capacity and if we store files on one of the drives they apear on the other drive the day after. They weird thing is that we cant seem to delete/remove the second drive, it also doenst appear in Disk Management on the server (Small Business Server2003). Could anyone explain why this second drive appears and how to delete/remove/hide it?
All help is appreciated.
Solved! Go to Solution.
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тАО09-02-2008 01:11 AM
тАО09-02-2008 01:11 AM
Re: MSA20 RAID 5 two identical drives
In powers of 2, this would be 750/(1.024)^3 = 698.5 GB.
Second, the logical unit that you created was filling all the disk space available?
Third, this MSA20 is connected directly o a server or though a MSA1500?
The MSA20 has only one SCSI connector and disks should be seen only once by the server.
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тАО09-02-2008 02:17 AM
тАО09-02-2008 02:17 AM
Re: MSA20 RAID 5 two identical drives
As far as the capacity, I dont think I really understand what you are trying to say with:
"Second, the logical unit that you created was filling all the disk space available?"
Could you please clarify this. Do you mean that the MSA20 only supports 2Tb of space while we have 3Tb so all disk space is filled?
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тАО09-02-2008 03:22 AM
тАО09-02-2008 03:22 AM
SolutionDid you create a logical unit using all the available space or a smaller one?
The connection to a SmartArray 6400 is correct, in this case the RAIDs are created on the MSA20 and the SmartArray is only the bridge to the server.
Can you attach a capture of the ACU screen showing what you have created?
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тАО09-02-2008 03:26 AM
тАО09-02-2008 03:26 AM
Re: MSA20 RAID 5 two identical drives
No, the size of an individual logical disk is limited to 2TB. The MSA20 has an U320 SCSI interface which cannot deal with LUNs larger than 2TB. However, you can create another logical disk from the remaining space.
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тАО09-02-2008 03:46 AM
тАО09-02-2008 03:46 AM
Re: MSA20 RAID 5 two identical drives
> Did you create a logical unit using all the available space or a smaller one? <
At the time of configuring the MSA I didnt now there was a limit so as far as I know we tried to attach all available space.
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тАО09-02-2008 03:52 AM
тАО09-02-2008 03:52 AM
Re: MSA20 RAID 5 two identical drives
Now, can you attach a screenshot from device manager - disks, and from disk manager?
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тАО09-02-2008 04:14 AM
тАО09-02-2008 04:14 AM
Re: MSA20 RAID 5 two identical drives
We assigned a spare because it was recommended during configuration of the array. Do you know if a spare really is nessecary?
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тАО09-02-2008 04:28 AM
тАО09-02-2008 04:28 AM
Re: MSA20 RAID 5 two identical drives
This is confirmed on the disk manager, disk 0 of 273 GB, and disk 1 of 1397 GB.
There are 5 storage volumes, 4 partitions in the internal disk and 1 on the MSA20, so you should have 5 drive letters assigned to disks.
Drive I: is not being assigned from disk manager (disk 1 = X:). So you'll have to investigate in Windows where does it come from.
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тАО09-02-2008 04:56 AM
тАО09-02-2008 04:56 AM