From: Bill Verzal (BVerzal@KOMATSUNA.COM)
Date: Fri Feb 27 2004 - 11:12:19 EST
We do this exact thing every night.
We synchronize the Timefinder primaries and BCV's. At a predetermined
time, we do a split. Then we importvg/varyonvg on the system hat is
assigned to the BCV's.
BV
--------------------------------------------------------
"If everything is coming your way, then you are in the wrong lane"
Bill Verzal
AIX Administrator, Komatsu America
(847) 970-3726 - direct
(847) 970-4184 - fax
Drew Myers
<myersd@VANGUARDC
AR.COM> To
Sent by: IBM AIX aix-l@Princeton.EDU
Discussion List cc
<aix-l@Princeton.
EDU> Subject
"exportvg -p -m" for AIX
02/27/2004 07:18
AM
Please respond to
IBM AIX
Discussion List
<aix-l@Princeton.
EDU>
All,
Thanks very much for all of your helpful comments and suggestions.
After thinking about this more, and trying the suggestions presented here,
as well as my own, I think I've narrowed the problem a bit. It also seems
I didn't present enough information to make analyzing the issue very easy.
Here's the complete "skinny".
2 LPARs on a p671 running AIX 5.2 with EMC Symmetrix attached LUNs via
fiber.
I use EMC's Control Center applications (timefinder et al), to manipulate
the LUNs.
I'm going to simplify the actual architecture for illustrative purposes.
+--------+ +-----------------+
| LPAR 1 | | Symmetrix |
+--------+ +-----------------+
| lun001 |-------->| dev001 | bcv001 |
| lun002 |-------->| dev002 | bcv002 |
| lun003 |-------->| dev003 | bcv003 |
+--------+ +--------+--------+
| | |
+--------+ | | |
| LPAR 2 | | | |
+--------+ | | |
| lun001 |--------------------+ | |
| lun002 |-----------------------+ |
| lun003 |--------------------------+
+--------+
One this *hopefully* conveys, is that I have 3 LUNs visible to LPAR1, from
the Symmetrix. These are "standard" devices, all the same size. They are
not visible to LPAR2. BCV1-3 are "BCV" devices, annotated as such at the
Symmetrix.
My goal, is to establish a mirror, via the Symmetrix, between dev001-3 and
bcv001-3, then split that mirror. This part works fine. I then would like
to be able to access the data on bcv001-3 on LPAR2 for backup and
development purposes. Most of the data is raw, but there are a few mounted
filesystems, which seems to be where I run into trouble. Based on
something Bill Verzal mentioned, I did notice that the VGIDs on the LUNs
are identical on LPAR1 and LPAR2.
What would be the appropriate method to make the data on bcv001-3 (and
therefore lun001-3 on LPAR2) accessible on LPAR2? I assume the data is
present, I just need to inform the ODM the VGs, LVs, and filesystems are
there.
Sorry to bring this up again, but I hope this explanation proves more
instructive than my last.
Thanks again,
Drew
This archive was generated by hypermail 2.1.7 : Wed Apr 09 2008 - 22:17:38 EDT