Hello admins,
Thank you to all who replied ... as always I am in debt. Susan
Clower Allen hit
it right now the head ... the disks were being seen by both controllers and
LVM was
majorly confused. Here is the original posting followed by Susan's
response ...
ORIGINAL
---------------
Hello admins,
I am trying to help a friend and I really don't have all the technical
details but I am going
to give it a shot anyways ...
He has an EMC disk array that he has an 800 series attached to using fast-wide
differential controllers. lvm is having a heck of a time communicating with
the disks on
both controllers. EMC says the array is fine. If we bypass lvm and just
mount the whole
disk it works. The disk is accessible.
-Has anybody ever seen these problems with LVM and EMC disks before?
-Thanks in advance
-Mark Cormier
>X-Authentication-Warning: duncan.cs.utk.edu: sallen owned process doing -bs
>Date: Tue, 21 Mar 2000 10:47:02 -0500 (EST)
>From: Susan Clower Allen <sallen@cs.utk.edu>
>To: mark cormier <mark_cormier@harvard.edu>
>Subject: Re: [HPADM] EMC and lvm ...
>
>You need to make certain that the disks / hypervolumes are not
>duplicated in the volume group. With the emc system, you can "see" the
>same disk on two or more ports. A common error is to do a vgcreate with
>one port's device file, then a vgcreate with another port's device file.
> This would in effect make the same disk part of two volume groups. The
>only way to uniquely identify the drive/hypervolume is to execute a
>program called "inq". It is available on EMC's web site. It will
>report the actual serial number of the disk and the device files. You
>can then verify the device files existance in the volume group. It is
>tedious work at best, but good luck.
>
>Susan
>
>On Tue, 21 Mar 2000, mark cormier
>wrote:
>
> > Hello admins,
> > I am trying to help a friend and I really don't have all the
> technical
> > details but I am going
> > to give it a shot anyways ...
> >
> > He has an EMC disk array that he has an 800 series attached to
> using fast-wide
> > differential controllers. lvm is having a heck of a time communicating
> > with the disks on
> > both controllers. EMC says the array is fine. If we bypass lvm and just
> > mount the whole
> > disk it works. The disk is accessible.
> >
> > -Has anybody ever seen these problems with LVM and EMC disks before?
> > -Thanks in advance
> > -Mark Cormier
> >
> >
> > ------------------
> >
> > Mark Cormier - MCSE / Unix System Administrator
> > Harvard University
> > mark_cormier@harvard.edu
> > (617)495-2492
> >
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> >
------------------
Mark Cormier - MCSE / Unix System Administrator
Harvard University
mark_cormier@harvard.edu
(617)495-2492
This archive was generated by hypermail 2.1.2 : Fri Sep 28 2001 - 23:14:05 CDT