Re: [SLUG] OT. raid failure 36Gb in place of 9Gb?

[Kevin Saenz]

I think you would have trouble rebuilding that raid, I have never gone 
down the path of trying to rebuild a harddrive with different size disks.

Hi Slugs,
Sorry for the OT post.
I've a raid 5 array with four 9.1GB disks. Can't find a 9GB disk to 
replace it but have a 36Gb disk handy.
It's the same SCSI type and pins. Would putting a 36gb in a 9GB RAID 
array work as in the RAID uses this disk and rebuilds even if only 9GB 
of it.
It's only a temp solution and a new server is coming to replace it 
anyway. just has to last a couple of weeks.
Ben


--
SLUG - Sydney Linux User's Group Mailing List - http://slug.org.au/
Subscription info and FAQs: http://slug.org.au/faq/mailinglists.html

Re: [SLUG] OT. raid failure 36Gb in place of 9Gb?

[Glen Turner]

On Thu, 2004-08-12 at 07:26, Ben Donohue wrote:
> Hi Slugs,
> Sorry for the OT post.
> I've a raid 5 array with four 9.1GB disks. Can't find a 9GB disk to 
> replace it but have a 36Gb disk handy.
> It's the same SCSI type and pins. Would putting a 36gb in a 9GB RAID 
> array work as in the RAID uses this disk and rebuilds even if only 9GB 
> of it.
> It's only a temp solution and a new server is coming to replace it 
> anyway. just has to last a couple of weeks.

Yes it will work, and as you describe you only get 9GB.

You will take a performance hit if the news disk's rotational speed (the
"RPM") is less than that of the other units in the raidset.  You might
take a hit from other minor differences too (which is why the disks in a
raidset are usually exactly the same).

-- 
Glen Turner Tel: (08) 8303 3936 or +61 8 8303 3936
Australian Academic & Research Network   www.aarnet.edu.au

-- 
SLUG - Sydney Linux User's Group Mailing List - http://slug.org.au/
Subscription info and FAQs: http://slug.org.au/faq/mailinglists.html