The problem with this in a z/VM world is that many disks are not complete
DASD's, so this value is not unique; possibly not even unique within a
single Linux image. This scheme trips us up in two ways:
The first is that, while all our DASD are 3390 mod 27 devices, we tend to
build out Linux
Hi,
We have some SLES 10 SP1 and SP2 systems which were installed using the
default of identifying disks by device ID.
This weekend our raised floor took a power hit so all LPARs and disk
arrays crashed. Most Linux systems came back fine, but a few SLES 10 SP1
and SP2 systems that identified
It's a bad choice of defaults on z.
It coming out of the HW. My guess is your box had some changes made to
it, internally perhaps, or you are on a different volume. All minidisks
on the same VM volume will have the same by-id, from what I can tell.
Makes cloning problematic too I suspect. And
On Tue, Jun 10, 2008 at 11:09 AM, in message
[EMAIL PROTECTED], Michael
MacIsaac [EMAIL PROTECTED] wrote:
-snip-
What strikes me as surprising is that it seems the disks by-id could not
be found after a power hit (I have no idea where to find the value
ccw-IBM.7500030375.010b.22 in the
On Tue, Jun 10, 2008 at 5:11 PM, in message
[EMAIL PROTECTED], Marcy
Cortes [EMAIL PROTECTED] wrote:
It's a bad choice of defaults on z.
-snip-
I like device path personally. The numbers look just like the numbers
you have to enter on the chccwdev command.
If I am successful, that default
Yay! We wish you success!
Mike, from the release notes:
http://www.novell.com/linux/releasenotes/s390x/SUSE-SLES/10/RELEASE-NOTE
S.en.html
Using Disks in z/VM
If SLES 10 is installed on disks in z/VM, which reside on the same
physical disk, the created access path (/dev/disk/by-id/) is not
On Tuesday, 06/10/2008 at 05:15 EDT, Mark Post [EMAIL PROTECTED] wrote:
The uid comes from the storage device itself. From one of my z/VM
guests:
# cat /sys/bus/ccw/devices/0.0.0150/uid
IBM.7500026069.1014.16
It is supposed to be unique to the hardware device itself, based on
serial
And if you really want to use UID, you should install the recently
available VM64273 and follow the instructions in the sles10 sp2 release
notes.
(although, still, I think a bad idea :) on z -- maybe a really good idea
on a peecee perhaps).
Marcy
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