From: Tim Moore <linux-raid@nsr500.net>
To: linux-raid@vger.kernel.org
Subject: Re: quick help needed - smaller disk in raid5?
Date: Sat, 19 Feb 2005 21:56:51 -0800 [thread overview]
Message-ID: <421826A3.30806@nsr500.net> (raw)
In-Reply-To: <200502192028.17397.michael.hebenstreit@fh-joanneum.at>
'fdisk -lu' shows in sectors of 512 bytes, useful in matching partition
sizes for slightly different disks.
You will have to resize to the smallest (30401 cylinders).
Hebenstreit Michael wrote:
> Hello everybody,
>
> I've been using a Raid5 with 3 disks of exactly the same size, a little bit
> more than 250 GB (reported as 251)
>
> Disk /dev/sdc: 251.0 GB, 251000193024 bytes
> 255 heads, 63 sectors/track, 30515 cylinders
> Units = cylinders of 16065 * 512 = 8225280 bytes
>
> Device Boot Start End Blocks Id System
> /dev/sdc1 1 30513 245095641 fd Linux raid autodetect
>
> Now I want to add a 4th disk - and got one slightly smaller:
>
> sanjose:~ # fdisk -l /dev/sdd
> Disk /dev/sdd: 250.0 GB, 250059350016 bytes
> 255 heads, 63 sectors/track, 30401 cylinders
> Units = cylinders of 16065 * 512 = 8225280 bytes
>
> Disk /dev/sdd doesn't contain a valid partition table
>
>
>
> Is it nevertheless possible (with some minimal losses in possible size) to add
> the new disk? The Funny thing - all disks are from Maxtor, and should have
> the same size.
>
> Thanks a lot
>
> Michael
>
>
--
prev parent reply other threads:[~2005-02-20 5:56 UTC|newest]
Thread overview: 2+ messages / expand[flat|nested] mbox.gz Atom feed top
2005-02-19 19:28 quick help needed - smaller disk in raid5? Hebenstreit Michael
2005-02-20 5:56 ` Tim Moore [this message]
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