I know its a raid 0 is a stripe.
Its my swap partition.
Why would I need fault tolerance on my swap.
Anyway,
I did what Sam suggested.
md0 is fine, md1 doesn't exist
mdadm -Q -D /dev/md2
it yeilded
/dev/md2:
Version : 00.90.01
Creation Time : Mon Feb 14 06:42:28 2005
Raid Level : raid5
Array Size : 34812416 (33.20 GiB 35.65 GB)
Device Size : 17406208 (16.60 GiB 17.82 GB)
Raid Devices : 3
Total Devices : 2
Preferred Minor : 2
Persistence : Superblock is persistent
Update Time : Fri Jul 28 17:56:25 2006
State : clean, degraded
Active Devices : 2
Working Devices : 2
Failed Devices : 0
Spare Devices : 0
Layout : left-symmetric
Chunk Size : 256K
Number Major Minor RaidDevice State
0 8 3 0 active sync /dev/sda3
1 8 19 1 active sync /dev/sdb3
2 0 0 -1 removed
UUID : b4b161bc:2953b117:9c13c568:47693baa
Events : 0.31307539
What if the next step this is my mail server and I really don't have the
time to reload it.
I have my fstab, partition, mdstat, infomation.
I ran this command sfdisk -d > sdb-parts.dump before a added the new drive.
Will any of this help?
Like I said before the only raid/partition experience I have is at initial
installation.
----- Original Message -----
From: "Jeff Vian" <jvian10@xxxxxxxxxxx>
To: "For users of Fedora Core releases" <fedora-list@xxxxxxxxxx>
Sent: Friday, July 28, 2006 5:44 PM
Subject: Re: software raid drive failed, please provide step bu step
torebuild
> On Fri, 2006-07-28 at 16:29 -0500, Dan Carl wrote:
> > I have/had a software raid running and sdc drive failed.
> > I got a replacement drive today and installed it.
> > My only experience with set partitions and raids in during initail
setup.
> > I could not fdisk the new drive because i guess it wasn't reconized so I
> > rebooted.
> > Now I can reach the drive via fdisk but I have made more problems now
(no
> > swap now)
> > and I'm not sure the steps to rebuild.
> > Background:
> > I have a FC3 with a software raid.
> > I have 3 SCSI 18gb hard drives
> > If I recall this how I set it up
> > md0 /boot 100MB raid 1 sda, sdb and sdc as spare
> > md1 /swp 768MB raid 0 sda, sdb, sdc
> This toasted your /swp partition.
> Raid 0 is striping, and a single failure toasts the entire device.
>
> You would have been ahead with a non-raid swap, and had 3 separate
> partitions, one on each device, for swap. Failure of one would not have
> toasted all.
>
>
> > md2 / ext3 33GB raid 5 sda, sdb, sdc
> >
> > Can someone please help?
> >
>
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