Hi list.

Anyone got an idea about the problem mentioned below?


Greetings,
	Benjamin

On 09.11.2006 11:19:09, Benjamin Schieder wrote:

Hi list.

I have the following 'leftover setup' from testing:

---snip---
/dev/hda:
          Magic : a92b4efc
        Version : 00.90.00
           UUID : 533fb996:8989f533:2dc6aaa9:74fdd762
  Creation Time : Sat Jun 24 08:37:43 2006
     Raid Level : raid5
    Device Size : 244198464 (232.89 GiB 250.06 GB)
     Array Size : 488396928 (465.77 GiB 500.12 GB)
   Raid Devices : 3
  Total Devices : 3
Preferred Minor : 0

    Update Time : Fri Jul  7 17:49:52 2006
          State : clean
 Active Devices : 3
Working Devices : 3
 Failed Devices : 0
  Spare Devices : 0
       Checksum : c0941be6 - correct
         Events : 0.1780

         Layout : left-symmetric
     Chunk Size : 64K

      Number   Major   Minor   RaidDevice State
this     1      34        0        1      active sync

   0     0      33       64        0      active sync
   1     1      34        0        1      active sync
   2     2      34       64        2      active sync
/dev/hda1:
          Magic : a92b4efc
        Version : 00.90.00
           UUID : 3559ffcf:14eb9889:3826d6c2:c13731d7
  Creation Time : Fri Jul  7 20:12:10 2006
     Raid Level : raid1
    Device Size : 497856 (486.27 MiB 509.80 MB)
     Array Size : 497856 (486.27 MiB 509.80 MB)
   Raid Devices : 3
  Total Devices : 3
Preferred Minor : 0

    Update Time : Thu Nov  9 05:12:56 2006
          State : clean
 Active Devices : 3
Working Devices : 3
 Failed Devices : 0
  Spare Devices : 0
       Checksum : 76d7e7e8 - correct
         Events : 0.1990


      Number   Major   Minor   RaidDevice State
this     1       3        1        1      active sync   /dev/hda1

   0     0       3       65        0      active sync   /dev/hdb1
   1     1       3        1        1      active sync   /dev/hda1
   2     2      22        1        2      active sync   /dev/hdc1

---snap---

Now, /dev/hda1 (and hda[35678]) are parts of active RAID arrays.
/dev/hda (whole disk) was part of an array I set up for testing/playing
around with mdadm. I then created the partitions and set up RAIDs for them.

Is it safe to issue the following command now:

root@ceres:~# mdadm --zero-superblock /dev/hda

or will that nuke my setup along with my precious data?
My software versions are the following:

root@ceres:/usr/src/wip/installer/package/base/installer# mdadm --version
mdadm - v2.4 - 30 March 2006
root@ceres:/usr/src/wip/installer/package/base/installer# uname -a
Linux ceres 2.6.17.7-rock-dragon #2 SMP Wed Aug 30 17:21:35 CEST 2006 i686 GNU/Linux

-- 
Benjamin 'blindCoder' Schieder
Registered Linux User #289529: http://counter.li.org
finger blindcoder@scavenger.homeip.net | gpg --import
-- 
/lusr/bin/brain: received signal: SIGIDIOT