Input Outpout Error

[Ben Scott]

On 11/6/07, Mad Unix <madunix at gmail.com> wrote:
> I built the first LUN with 50G with (/dev/sdb, /dev/sdd) then I
> expanded with another 50G (/dev/sdc, /dev/sde)

  Explain what you mean here, using LVM terminology ("LUN" is
ambiguous)..  If possible, show the commands issued.

  From the output you posted, it looks like you have two VG (Volume
Groups), one called "VolGroup00" and one called "linux1".  The
"VolGroup00" VG is roughly 56 GB in size, and is consumed entirely by
two LVs.  Those two LVs are roughly 54 and 2 GB in size.  The "linux1"
VG is roughly 100 GB in size and contains no LVs.

  What are you trying to do here?

  Posting the output of "pvdisplay" and "vgdisplay" may be helpful.

> the expansion done without error but i still have the error i/o ...

  I/O errors are generally reported by a block device driver (such as
the one controlling a disk drive).  Are you sure the disks you added
are good?  You may want to consider removing the disks from any VGs
you added them to, removing any PV labels from them, and running a
badblocks destructive write test.  That will confirm the disks,
controllers, and kernel are all working properly together.

-- Ben