Re: [MLUG] Upgrading RAID array

[Nathan Odle <EMAIL:PROTECTED>]

The other simple method is to find another box with 36GB of blank space 
and rsync everything over.  Upgrade array, and rsync back.

Kinda obvious, but thought I'd mention it anyway

-N

On Apr 6, 2004, at 12:43 PM, Mark Rages wrote:

> On Tue, Apr 06, 2004 at 03:05:36PM +0100, Russell Horn wrote:
>> Since we're talking about hard drives....
>>
>> I've a RedHat machine with hardware RAID 5 through a megaraid 
>> controller and
>> 3x18gig SCSI U160 drives.
>>
>> I've jsut ordered 3x74gig drives as an upgrade - does anyone have any
>> strategies for upgrading a RAID 5 array?
>>
>
> This is a RAID 5, so you only have 36G of data.
>
> There is a way to do this with the Linux sowftware raidtools...
> I wouldn't want to try it with the megaraid config junkware. Here it 
> is:
>
>   Basically, you could copy to your 36G data to one of the 72G disks,
>   then pull the 18Gs and replace with 72G.
>
>   Start the raid in degraded mode with the disk holding the data kicked
>   out of the array.  copy data over, then hotadd it.  Done.
>
> Considering the tiny amount of data you have, it's probably better to
> rebuild from backup.
>
> Regards,
> Mark
> -- 
> To invent, you need a good imagination and a pile of junk. -Thomas 
> Edison
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