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тАО02-23-2011 07:09 AM
тАО02-23-2011 07:09 AM
Adding disk drive on enclosure bay
we have an EVA 4000 SAN storage with an disk enclosure (upload with 12 disk drive of 136 GB).
These 12 disk drive are on Default disk group.
We have 2 bay on the enclosure empty.
Could we add two disk drive of 300 GB and add it directly to the default disk group to increase the total capacity ?
Thanks
Regards
M.Anaba
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тАО02-23-2011 07:55 AM
тАО02-23-2011 07:55 AM
Re: Adding disk drive on enclosure bay
Due to the different capacity and reserved space (x times the capacity of the largest disk) you may not have so much new space ...) - maybe almost no new space.
Hope this helps!
Regards
Torsten.
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тАО02-23-2011 08:02 AM
тАО02-23-2011 08:02 AM
Re: Adding disk drive on enclosure bay
But do you mean it's better to add two new drives wih the same capacity (136 GB instead of 300 GB) ?
And the whole added capacity will be add to the Default disk group without any problem on the existing virtual disk ?
Regards
M.Anaba
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тАО02-23-2011 08:07 AM
тАО02-23-2011 08:07 AM
Re: Adding disk drive on enclosure bay
Hope this helps!
Regards
Torsten.
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тАО02-23-2011 08:20 AM
тАО02-23-2011 08:20 AM
Re: Adding disk drive on enclosure bay
actually there is :
Total storage space =1366 GB
Storage space used = 1279 GB
Available storage space = 87 GB
If i'll add two drive of 145 GB the available storage space will be less than 87 GB ? That's you mean ?
Regards
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тАО02-23-2011 09:00 AM
тАО02-23-2011 09:00 AM
Re: Adding disk drive on enclosure bay
Hope this helps!
Regards
Torsten.
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тАО02-23-2011 09:19 AM
тАО02-23-2011 09:19 AM
Re: Adding disk drive on enclosure bay
Regards
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тАО02-23-2011 09:35 AM
тАО02-23-2011 09:35 AM
Re: Adding disk drive on enclosure bay
Hope this helps!
Regards
Torsten.
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тАО02-23-2011 09:40 AM
тАО02-23-2011 09:40 AM
Re: Adding disk drive on enclosure bay
This CAN decrease after a disk failure/repair if the EVA fails to go back to the original internal disk group layout. As far as I know, there is no guarantee and the exact behaviour is undocumented
Too bad that even after _that_ many years there is no 'disk trunkate' capability to mimic the behavior of traditional RAID arrays (use capacity of smallest disk drive in group) to make the system more predictable
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тАО02-23-2011 09:58 AM
тАО02-23-2011 09:58 AM
Re: Adding disk drive on enclosure bay
So il will add 2 drive of 146 GB.
If i understand you well it will be more easier to add them in the existing default disk group which contain already 12 drives of 146 GB capacity.
My available storage will be arround 250 /300 GB right ?
Regards