Re: raid 0/1 question

1999-10-04 Thread Jakob Østergaard

On Mon, Oct 04, 1999 at 07:39:21PM -0400, [EMAIL PROTECTED] wrote:
 
 I just need some help to make sure I'm doing this properly.  All I ask is
 for quick help on getting this proper.
 
 I have 6 9 gig disks.  I want to create a 0/1 level configuration.  This
 is what I have in my raidtab:
...

From where I sit it looks just fine.

You might want to use the same chunk size on all RAIDs though, I'm not
sure what impact it might have on performance though (anyone?)

 # Sample raid-1 configuration
 raiddev /dev/md2
 raid-level  1

Oups!   You forgot persistent-superblock here !

 nr-raid-disks   2
 nr-spare-disks  0
 chunk-size  4
 device  /dev/md0
 raid-disk   0
 device  /dev/md1
 raid-disk   1

Go ahead, tell us if it works, let's see a benchmark (otherwise we won't
believe you   ;)


: [EMAIL PROTECTED]  : And I see the elder races, :
:.: putrid forms of man:
:   Jakob Østergaard  : See him rise and claim the earth,  :
:OZ9ABN   : his downfall is at hand.   :
:.:{Konkhra}...:



Re: raid 0/1 question

1999-10-04 Thread jeremy


Well, it does work, just wanted to make sure I had things ordered
properly.

Now, I ran raidsetfaulty on /dev/md2 with device /dev/md0.  How do I get
it to use md0 again without destroying data?  This is what I see now:

md2 : active raid1 md1[1] md0[2] 26876288 blocks [2/1] [_U] recovery=63% finish=32.3min
md0 : active raid0 sdc1[2] sdb1[1] sda1[0] 26876352 blocks 16k chunks
md1 : active raid0 sdf1[2] sde1[1] sdd1[0] 26876352 blocks 16k chunks

Thanks!
-jeremy

 On Mon, Oct 04, 1999 at 07:39:21PM -0400, [EMAIL PROTECTED] wrote:
  
  I just need some help to make sure I'm doing this properly.  All I ask is
  for quick help on getting this proper.
  
  I have 6 9 gig disks.  I want to create a 0/1 level configuration.  This
  is what I have in my raidtab:
 ...
 
 From where I sit it looks just fine.
 
 You might want to use the same chunk size on all RAIDs though, I'm not
 sure what impact it might have on performance though (anyone?)
 
  # Sample raid-1 configuration
  raiddev /dev/md2
  raid-level  1
 
 Oups!   You forgot persistent-superblock here !
 
  nr-raid-disks   2
  nr-spare-disks  0
  chunk-size  4
  device  /dev/md0
  raid-disk   0
  device  /dev/md1
  raid-disk   1
 
 Go ahead, tell us if it works, let's see a benchmark (otherwise we won't
 believe you   ;)
 
 
 : [EMAIL PROTECTED]  : And I see the elder races, :
 :.: putrid forms of man:
 :   Jakob Østergaard  : See him rise and claim the earth,  :
 :OZ9ABN   : his downfall is at hand.   :
 :.:{Konkhra}...:
 


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