4 messages, 3 authors, 2002-09-30 · open the first message on its own page
From: Mike Parsons <hidden>
Date: 2002-09-30 13:56:49
Hi all I have a 3 disk soft raid5 array. One disk has failed. Due to a faulty removable drive tray the other disks are out of sync. The data on the remaining disks should be identical. Can someone please refresh my memory, on how to re-sync the disks. Thank You. Mike Parsons
From: Adam Luter <hidden>
Date: 2002-09-30 14:53:51
Apparantly it should happen automatically when you put the drive back in. (And raidstop/start the drive). If not, while the array is started, run 'raidhotadd' on the drive. It will treat the out of sync drive as a new spare.. then once it's done syncing the spare it will treat the spare as if it was the drive missing (that is, it will upgrade it's status as a spare to a full fledge drive). p.s. I'm not an expert, but I did just have to do this on mine (except the auto part didn't work, so I had to use the hotadd part). -Gryn (Adam Luter) On Mon, Sep 30, 2002 at 02:56:49PM +0100, Mike Parsons wrote:
Hi all I have a 3 disk soft raid5 array. One disk has failed. Due to a faulty removable drive tray the other disks are out of sync. The data on the remaining disks should be identical. Can someone please refresh my memory, on how to re-sync the disks. Thank You. Mike Parsons - To unsubscribe from this list: send the line "unsubscribe linux-raid" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html
From: Mike Parsons <hidden>
Date: 2002-09-30 17:31:42
On Mon, 30 Sep 2002, Adam Luter wrote:
Apparantly it should happen automatically when you put the drive back in. (And raidstop/start the drive). If not, while the array is started, run 'raidhotadd' on the drive. It will treat the out of sync drive as a new spare.. then once it's done syncing the spare it will treat the spare as if it was the drive missing (that is, it will upgrade it's status as a spare to a full fledge drive). p.s. I'm not an expert, but I did just have to do this on mine (except the auto part didn't work, so I had to use the hotadd part). -Gryn (Adam Luter)
Thanks for the reply Adam, but the 2 good disks are not being recognised, as the superblocks are out of sync. I have approx. 40 GB of data that I would like to recover. I had this problem a while ago, and someone on the list explained how to resync the suberblocks. Unfortunately the e-mail with the information is on the raid array. Hopefully someone can refresh my memory. Cheers Mike Parsons
From: Mads Peter Bach <hidden>
Date: 2002-09-30 17:47:51
Mike Parsons wrote:
Hi all I have a 3 disk soft raid5 array. One disk has failed. Due to a faulty removable drive tray the other disks are out of sync. The data on the remaining disks should be identical. Can someone please refresh my memory, on how to re-sync the disks.
It's in the FHOWTO: http://www.tldp.org/HOWTO/Software-RAID-HOWTO-6.html#ss6.1 Mark your failed disk as failed in /etc/raidtab and do a mkraid -- Mads