Re: Is RAID1 alive and well?
On Fri, 2006-01-06 at 03:45 -0500, Chinook wrote:
> Etch with kernel 2.6.12-1-686 (2.6.12-10) Gnome desktop
> ........................................................
>
> I recently tested imaging and restoring my complete system with Mondo
> (before I screw it up again :-)
>
> All seems well, but earlier today I thought I saw something like "RAID1
> not detected" in the messages scrolling by at boot up. May be nothing,
> as I have scanned all logs in the appropriate time frame without
> success, but I would like to put my mind at rest. I've been googling
> and searching man pages for hours for a way to determine if RAID1 is
> working properly after the restore. I even installed a package named
> "dmraid" which tells me there is no detected RAID, but I'm not sure it's
> looking for the type of software RAID used by Debian.
>
> The only thing I found (other than dmraid) that gives me any kind of
> indication is the cli "sfdisk" (I only used the -l option). The output
> from such is below. Is it telling me that hdb is an "active" RAID1
> disk? Is there any other way of determining the status of RAID1 in my
> Debian installation? Sorry, but this is bugging me %-/
>
> Thank you,
> Lee C
>
>
> output from sfdisk
> ==================
> debian1:/home/leec# sfdisk -l
>
> Disk /dev/hda: 155061 cylinders, 16 heads, 63 sectors/track
> Warning: extended partition does not start at a cylinder boundary.
> DOS and Linux will interpret the contents differently.
> Warning: The partition table looks like it was made
> for C/H/S=*/255/63 (instead of 155061/16/63).
> For this listing I'll assume that geometry.
> Units = cylinders of 8225280 bytes, blocks of 1024 bytes, counting from 0
>
> Device Boot Start End #cyls #blocks Id System
> /dev/hda1 * 0+ 851 852- 6843658+ 83 Linux
> /dev/hda2 852 9728 8877 71304502+ 5 Extended
> /dev/hda3 0 - 0 0 0 Empty
> /dev/hda4 0 - 0 0 0 Empty
> /dev/hda5 852+ 1182 331- 2658726 82 Linux swap / Solaris
> /dev/hda6 1183+ 9728 8546- 68645713+ 83 Linux
>
> Disk /dev/hdb: 155061 cylinders, 16 heads, 63 sectors/track
> Warning: extended partition does not start at a cylinder boundary.
> DOS and Linux will interpret the contents differently.
> Warning: The partition table looks like it was made
> for C/H/S=*/255/63 (instead of 155061/16/63).
> For this listing I'll assume that geometry.
> Units = cylinders of 8225280 bytes, blocks of 1024 bytes, counting from 0
>
> Device Boot Start End #cyls #blocks Id System
> /dev/hdb1 0+ 9725 9726- 78124063+ 5 Extended
> /dev/hdb2 0 - 0 0 0 Empty
> /dev/hdb3 0 - 0 0 0 Empty
> /dev/hdb4 0 - 0 0 0 Empty
> /dev/hdb5 0+ 9725 9726- 78124032 fd Linux raid autodetect
> debian1:/home/leec#
>
>
cat /prod/mdstat
with regards
Ronny Aasen
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