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Old 01-16-2008, 10:21 AM
Bob
 
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Default MPxIO SAN root partition install problem.

Hi,

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?

Thanks,
B
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