[linux-lvm] raid 1 destroyed!

[Alexander Lazarevich]

ah, yes, that is probably what i did wrong. so software raid mirrors
partitions, not drives? this is fine and all, but what about some
documentation for radihotadd? any ideas?

thanks,

alex
---                                                        ---
   Alex Lazarevich | Systems | Imaging Technology Group
   alazarev at itg.uiuc.edu | (217)244-1565 | www.itg.uiuc.edu
---                                                        ---


On Thu, 29 Aug 2002, Steven Dake wrote:

> One place you may have gone wrong is hotadding /dev/sdb.  You would want
> to add a partition such as /dev/sdb1 not /dev/sdb
>
> Thanks
> -steve
>
> Alexander Lazarevich wrote:
>
> >i was testing out software raid on linux 7.3 with sistina LVM installed. i
> >had a raid 1 mirror with two drives, and one of the drives failed (i
> >pulled the power on it), then i pluged it back in, rebooted, ran fdisk -l
> >to make sure linux could see the drive (it did), then tried running fdisk
> >again to create the partitions on the drive, then rebooted, then ran
> >'raidhotadd /dev/md0 /dev/sdb', rebooted, then my entire system was gone,
> >both drives had corrupted filesystem.
> >
> >my question is this: since there is no man pages for raidhotadd (stupid),
> >how the heck do i read about how this software raid works so i dont blow
> >away a "real" system!
> >
> >also, if i add my system drives to the LVM, can it still be in a raid 1?
> >
> >thanks in adavance,
> >
> >alex
> >---                                                        ---
> >   Alex Lazarevich | Systems | Imaging Technology Group
> >   alazarev at itg.uiuc.edu | (217)244-1565 | www.itg.uiuc.edu
> >---                                                        ---
> >
> >
> >
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> >
> >
> >
>
>
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