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Old 01-16-2008, 10:22 AM
Thomas H Jones II
 
Posts: n/a
Default Re: MPxIO SAN root partition install problem.

In article <46029cc2$0$17533$5a62ac22@per-qv1-newsreader-01.iinet.net.au>,
Bob <ftoomch@gmail.com> wrote:
>I am trying to install Solaris 10 u3 x86 onto a 64 bit IBM HS20 blade.
>
>All our blades have, as their only "disks", a 2 fibrechannel paths to
>our 3pardata SAN backend.
>
>I'd like to use these 2 paths in a round robin fashion via mpxio that's
>built into Solaris, but it doesn't seem supported be default.
>
>Obviously when I try to install both paths appear as separate disks in
>the partitioning section of the installer.
>
>I have had some limited success by putting the lines:
>
>device-type-scsi-options-list =
>"3PARdataVV", "symmetric-option";
>symmetric-option = 0x1000000;
>
>into my x86.miniroot's /kernel/drv/scsi_vhci.conf. This lets me see the
>single multipathed volume in the installer, but it breaks when I try to
>do a reboot after the install is finished. It doesn't seem to transfer
>to the actual install, therefore the box just reboots after it runs Grub
>and tries to boot the kernel.
>
>I have also tried to turn on multipathing after installation, but due to
>a lack of stmsboot on x86 I've hit a brick wall and am not sure what to
>do.
>
>Can someone please shed some light on this for me if you have experience
>booting from unsupported (by default) multipath volumes?
>
>Clues and tips from people who have never tried this are also welcome.
>
>I'd preferably like to solve this via jumpstart (since I tftpboot
>install) rather than hacking package files and my x86.miniroot and I'd
>also like to not have to reconfigure each host after install, I'd rather
>have the installer work for my setup.
>
>Any ideas?


Silly question, but... Did you set the "mpixio-disable" parameter in
/kernel/drv/scsi_vhci.conf file to "no"? And, if you did, did you use
cfgadm to combine the controller paths to create the virtual devices?

-tom
--

"You can only be -so- accurate with a claw-hammer." --me
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