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тАО06-22-2005 03:36 AM
тАО06-22-2005 03:36 AM
I have VA7400 with 10x36G disk and DS2405 with 5x73Gb disks. They working togehter as one Array.
I want to move disks from DS2405 to VA7400 and deattach DS2405. Could I do it without rebuild configuration ???
Thanks in advance,
Maxim
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тАО06-22-2005 03:47 AM
тАО06-22-2005 03:47 AM
Re: VA7400. Move disks between slots. Is it possible?
But it's a good idea to make a full verified backup before you start.
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тАО06-22-2005 03:47 AM
тАО06-22-2005 03:47 AM
SolutionThe VA7400 has 2 parity groups - which are basically every other slot (even numbered slots are in one group, odd numbered slots in the other).
So, as long as you BE ABSOLUTELY SURE that get it right, you should be OK.
So, if the 5 drives in the DS2405 are slots 1-5, then you need to move the drives from slots 1, 3, and 5 into ODD numbered slots in the base unit, and the drives in slots 2 and 4 into EVEN numbered slots. DO NOT MIX THEM UP.
Verify all this with Command View - be SURE you note which parity group each of the drives is in.
I *highly* suggest a FULL BACKUP of the entire unit before attempting such an activity, as you can EASILY trash your configuration and lose all your data.
Another important item - Turn the array OFF before moving the drives, or it'll treat them as FAILED drives. If you remove 5 out of 15 drives live, you will probably destroy the RAID and lose your data.
Goodluck,
Vince
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тАО06-22-2005 03:55 AM
тАО06-22-2005 03:55 AM
Re: VA7400. Move disks between slots. Is it possible?
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тАО06-22-2005 03:57 AM
тАО06-22-2005 03:57 AM
Re: VA7400. Move disks between slots. Is it possible?
I know about Redundace Groups, but didn't know how VA7400 recognize disks by slot number or by service information. As I see from answers by service inforation.
Thanks again,
Maxim
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тАО06-22-2005 04:20 AM
тАО06-22-2005 04:20 AM
Re: VA7400. Move disks between slots. Is it possible?
Once a disk drive is assigned to an RG, the controller reserves some capacity for its own use - the meta data area. On all disks it stores configuration information, e.g. to which RG this disk belongs. On some of the disks it also stores the virtual mapping tables.