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09-29-2007 01:10 AM
09-29-2007 01:10 AM
I added 1 more disk on my storage, but I getting the following message when I try to expand the array.
"
An even number of physical drives is required for this array because it has one or more logical drives with a fault tolerance of RAID 1+0.
However you can migrate all RAID 1+0 logical drives on this array to RAID 6
"
My configuration:
All Disks are 146gb
Logical Drive 1: 300gb, RAID 6
Logical Drive 2: 195gb, RAID 1+0
Logical Drive 3: 175g, RAID 5
Unused Space: 130gb
1 Hot Spare Disk
1 New Added Disk
----------------
What's the explanition for this message?
Thanks,
Aimberê
Solved! Go to Solution.
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09-29-2007 01:55 AM
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09-29-2007 10:49 AM
09-29-2007 10:49 AM
Re: Expandig MSA1000 Array
The message is clear, but what I want to know is:
I don't know what is the rule for that count of disks, so when I need to put more disks, I need to know how many I will need.
Do you know how it works?
Thanks
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09-29-2007 04:38 PM
09-29-2007 04:38 PM
Re: Expandig MSA1000 Array
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09-30-2007 03:34 AM
09-30-2007 03:34 AM
Re: Expandig MSA1000 Array
But this happens only when I use RAID 1+0 or have another configuration scenario that happen this situation?
Thanks
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09-30-2007 09:19 PM
09-30-2007 09:19 PM
Re: Expandig MSA1000 Array
yes the contoller makes certain assumptions based on the array and the existing logical drives. e.g. if you create an array with only two physical drives, it will let you create logical drives in RAID1 only. Then, when you expand such an array with *one* disk it suggests that it will migrate all your RAID1 drives to RAID5 because this is the only reasonable change that you could make use of that disk in that array (if you added *two* disks you could stay at RAID1, or migrate to RAID5 or RAID6).
Regards
Bernhard
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09-30-2007 11:22 PM
09-30-2007 11:22 PM
Re: Expandig MSA1000 Array
Thanks everybody!