[ale] Compaq raid disk. How do I format?

[Christopher Fowler]

KVM Over IP and you can resetup the raid

On Tue, 2004-10-12 at 08:32, Jim Lynch wrote:
> Thanks, guys for your input.  I'm a bit constrained here.  The server is 
> in California and I'm in GA.  The fellow (NT admin) that set up the raid 
> config did the install of the disks and configured c0d2 as two 9 Gb 
> disks mirrored.  I'd like to redo the whole thing, but I can't remotely 
> and don't have anyone that understands both raid and linux at the site, 
> so I'm stuck with what I've got.
> 
> On your advice I did go into fdisk and try to partition c0d2.  Strange 
> thing happened.  I can't seem to create more than one partition.  I 
> think the geometry is screwed up somehow. Note it would only let me 
> start at block 1 and didn't ask me how large to make the partition.  It 
> just grabbed it all. Any ideas how to fix that?
> 
>  /sbin/fdisk /dev/ida/c0d2
> 
> Command (m for help): p
> 
> Disk /dev/ida/c0d2: 1 heads, 17764320 sectors, 1 cylinders
> Units = cylinders of 17764320 * 512 bytes
> 
>          Device Boot    Start       End    Blocks   Id  System
> 
> Command (m for help): n
> Command action
>    e   extended
>    p   primary partition (1-4)
> p
> Partition number (1-4): 1
> First cylinder (1-1, default 1):
> Using default value 1
> 
> Command (m for help): p
> 
> Disk /dev/ida/c0d2: 1 heads, 17764320 sectors, 1 cylinders
> Units = cylinders of 17764320 * 512 bytes
> 
>          Device Boot    Start       End    Blocks   Id  System
> /dev/ida/c0d2p1             1         1   8882159+  83  Linux
> Partition 1 has different physical/logical endings:
>      phys=(768, 0, 32) logical=(0, 0, 17764320)
> Partition 1 does not end on cylinder boundary:
>      phys=(768, 0, 32) should be (768, 0, 17764320)
> 
> Command (m for help):
> 
> 
> Jim Lynch wrote:
> 
> > I've have an old compaq that a Windows tech added some disks to but 
> > had no idea what to do to make it work on Linux.  From the dmesg 
> > listing I found:
> >
> > Compaq SMART2 Driver (v 2.4.5)
> > Found 1 controller(s)
> > cpqarray: Finding drives on ida0 (SMART-2/P)
> > cpqarray ida/c0d0: blksz=512 nr_blks=8380320
> > cpqarray ida/c0d1: blksz=512 nr_blks=16768800
> > cpqarray ida/c0d2: blksz=512 nr_blks=17764320
> >
> > It looks like he added ida/c0d2 since I have the other two drives 
> > mentioned in the fstab file.  When I tried to look at one of the 
> > existing drives with fdisk I found:
> > Disk /dev/ida/c0d1: 1 heads, 16768800 sectors, 1 cylinders
> > Units = cylinders of 16768800 * 512 bytes
> >
> >         Device Boot    Start       End    Blocks   Id  System
> > /dev/ida/c0d1p1   *         1         1   2044064   82  Linux swap
> > Partition 1 has different physical/logical beginnings (non-Linux?):
> >     phys=(0, 1, 1) logical=(0, 0, 33)
> > Partition 1 has different physical/logical endings:
> >     phys=(500, 254, 32) logical=(0, 0, 4088160)
> > Partition 1 does not end on cylinder boundary:
> >     phys=(500, 254, 32) should be (500, 0, 16768800)
> > /dev/ida/c0d1p2             1         1    391680   83  Linux
> > Partition 2 has different physical/logical beginnings (non-Linux?):
> >     phys=(501, 0, 1) logical=(0, 0, 4088161)
> > Partition 2 has different physical/logical endings:
> >     phys=(596, 254, 32) logical=(0, 0, 4871520)
> > Partition 2 does not end on cylinder boundary:
> >     phys=(596, 254, 32) should be (596, 0, 16768800)
> > /dev/ida/c0d1p3             1         1    261120   83  Linux
> > Partition 3 has different physical/logical beginnings (non-Linux?):
> >     phys=(597, 0, 1) logical=(0, 0, 4871521)
> > Partition 3 has different physical/logical endings:
> >     phys=(660, 254, 32) logical=(0, 0, 5393760)
> > Partition 3 does not end on cylinder boundary:
> >     phys=(660, 254, 32) should be (660, 0, 16768800)
> > /dev/ida/c0d1p4             1         1   5687520    f  Win95 Ext'd (LBA)
> > Partition 4 has different physical/logical beginnings (non-Linux?):
> >     phys=(661, 0, 1) logical=(0, 0, 5393761)
> > Partition 4 has different physical/logical endings:
> >     phys=(1023, 254, 32) logical=(0, 0, 16768800)
> > Partition 4 does not end on cylinder boundary:
> >     phys=(1023, 254, 32) should be (1023, 0, 16768800)
> > /dev/ida/c0d1p5             1         1   5687504   83  Linux
> >
> > Which makes me a bit leary of using fdisk on these drives.  Most of 
> > that output doesn't make sense to me.  Can anyone point me in the 
> > right direction so I can learn how to format this new drive?  This is 
> > a RH 7.2 system.  If I understand correctly this is a RAID system.  
> > The new drive  is really 2 9 Gb drives configured as a mirror, so I 
> > was told.  Is there some other utility I need to use to make sense of 
> > the partitioning of the existing drives?
> >
> > Thanks,
> > Jim.
> >
> >
> > _______________________________________________
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> > Ale at ale.org
> > http://www.ale.org/mailman/listinfo/ale
> 
> 
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