Jan-Frode Myklebust wrote:
> % grep -v ^# /etc/multipath.conf
[... cut: config ...]
Thanks. I believe that I've tried that configuration, still without being
able to change "preferred path" in the SAN.
Are you sure that you are able to:
1. Change preferred path of an active (i.e. mounted and with
I/O) logical drive, using the SAN configuration tool
("Storage Manager").
2. Wait for 10 seconds.
3. _Not_ have an alarm situation in the SAN?
> Well, when I asked them they specifically stated that DS4800 +
> RHEL5/dm-multipath was a redhat supported option. The respons from
> redhat was:
>
> "dm-multipath works with DS4800 and is supported by Red Hat but not IBM.
> If you would like (or need) a fully supported IBM installation then you
> will need to use mpp/lsi (but it is not supported by Red Hat) In this
> case it is best to inquire with IBM to see what they say and with the
> above information and the response from IBM, you will need to decide
> the best course of action for your set up."
Damn. This is exactly the kind of support nightmare which keeps expensive
(and painful-to-work-with) single-vendor-solutions like AIX+PowerPC
+DSxxxx and HP-UX+...+... alive.
Altough I'm very disappointed with Red Hat support, IBM is even
more disappointing: A document like
ftp://ftp.software.ibm.com/systems/support/system_x/ibm_dd_ds4kfc_8.01.07-kx_linux2.6_anycpu.txt
is surprisingly self-contradictory and confusing.
--
Regards,
Troels Arvin <[EMAIL PROTECTED]>
http://troels.arvin.dk/
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