[mythtv-users] RAID: full disk or partition (was: Question re: available SATA ports and linux software RAID)

John Drescher drescherjm at gmail.com
Wed Apr 27 02:41:38 UTC 2011

On Tue, Apr 26, 2011 at 10:30 PM, Jean-Yves Avenard <jyavenard at gmail.com> wrote:
> On 27 April 2011 12:27, John Drescher <drescherjm at gmail.com> wrote:
>> And I meant drives that are connected. One could always reboot pulling
>> the sata cable. Assemble whatever array then plug the drive in and
>> zero the superblock or zero it in some other machine.
> Will zeroing the /dev/sdd superblock write anywhere on the /dev/sdd1 partition?
> That's my main concern..
> Otherwise, I'll have to manually fail each disk, remove them, re-add
> them... So I'm up for a few more days of md rebuilding (took me a week
> already to change the 1.5TB to 2TB disks ...)

What superblock are you using 1.2?

You may be able to manually zap the superblock like I did in this thread:


Here is the link again to the wikipedia article that talks about the
superblock format.


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