From: Neil Brown <neilb@suse.de>
To: Janos Haar <janos.haar@netcenter.hu>
Cc: linux-raid@vger.kernel.org
Subject: Re: RAID0 size bug (?)
Date: Sat, 9 Oct 2010 10:45:16 +1100 [thread overview]
Message-ID: <20101009104516.129c60e2@notabene> (raw)
In-Reply-To: <0a7401cb673c$12820280$0400a8c0@dcccs>
On Sat, 9 Oct 2010 00:56:38 +0200
"Janos Haar" <janos.haar@netcenter.hu> wrote:
> Hello list,
>
> Maybe a known old bug, but i don't know.
>
> The size is wrong of the md8:
>
> [root@UNISTORE ~]# fdisk -l /dev/sdh
>
> Disk /dev/sdh: 750.1 GB, 750156374016 bytes
^^^^^^^^^
> 255 heads, 63 sectors/track, 91201 cylinders
> Units = cylinders of 16065 * 512 = 8225280 bytes
So 750GB
>
> Disk /dev/sdh doesn't contain a valid partition table
> [root@UNISTORE ~]# fdisk -l /dev/sdf
>
> Disk /dev/sdf: 500.1 GB, 500107862016 bytes
^^^^^^^^^
> 255 heads, 63 sectors/track, 60801 cylinders
> Units = cylinders of 16065 * 512 = 8225280 bytes
This one is 500GB
>
> Disk /dev/sdf doesn't contain a valid partition table
> [root@UNISTORE ~]# mdadm --detail /dev/md8
> /dev/md8:
> Version : 00.90.03
> Creation Time : Sat Oct 9 06:36:36 2010
> Raid Level : raid0
> Array Size : 1220961088 (1164.40 GiB 1250.26 GB)
^^^^^^^^^^^
750GB + 500GB == 1250 GB
So what is your problem?
NeilBrown
> Raid Devices : 2
> Total Devices : 2
> Preferred Minor : 8
> Persistence : Superblock is not persistent
>
> Update Time : Sat Oct 9 06:36:36 2010
> State : clean
> Active Devices : 2
> Working Devices : 2
> Failed Devices : 0
> Spare Devices : 0
>
> Chunk Size : 64K
>
> Number Major Minor RaidDevice State
> 0 8 112 0 active sync /dev/sdh
> 1 8 80 1 active sync /dev/sdf
> [root@UNISTORE ~]#
> [root@UNISTORE ~]# uname -a
> Linux UNISTORE 2.6.28.10 #5 SMP Fri Jan 29 07:40:35 CET 2010 x86_64 x86_64
> x86_64 GNU/Linux
> [root@UNISTORE ~]# mdadm -V
> mdadm - v2.5.4 - 13 October 2006
> [root@UNISTORE ~]#
>
>
> Cheers,
> Janos
>
> --
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next prev parent reply other threads:[~2010-10-08 23:45 UTC|newest]
Thread overview: 4+ messages / expand[flat|nested] mbox.gz Atom feed top
2010-10-08 22:56 RAID0 size bug (?) Janos Haar
2010-10-08 23:45 ` Neil Brown [this message]
2010-10-09 19:09 ` Janos Haar
2010-10-09 20:01 ` Neil Brown
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