Missing Disk in LVM from EVA3000

[Andrew Moody_1]

Spec list:- EVA300 VCS3.028 rp3440 11iv1 securepath 3.0F

Presented 2x VDISK from EVA. spmgr display gives attached output, ioscan -funC disk gives attached output.

disk 3 255/255/0/0.1 sdisk CLAIMED DEVICE HSV100 HP
/dev/dsk/c14t0d1 /dev/rdsk/c14t0d1
disk 4 255/255/0/0.2 sdisk CLAIMED DEVICE HSV100 HP
/dev/dsk/c14t0d2 /dev/rdsk/c14t0d2

So why when I start SAM can I only see one disk

Hardware Path number of paths
255/255/0/0.1 2

and disk
255/255/0/0.2 is nowhere to be seen

[Andrew Moody_1]

Apologies, like the idiot I so constantly prove myself to be I didn't attach the output file

[Patrick Wallek]

What are you trying to do via SAM? Create an VG? Extend a VG?

You would be a lot better off using the command line tools. vgcreate, vgextend, lvcreate, lvextend, etc.

To see what sam is doing, have a look at /var/sam/log/samlog. Look for any errors.

[Andrew Moody_1]

Thanks Patrick

There's a culture clash here, I can do things long handed, but when there's a tool there to help why would you? Doesn't just working around a problem with SAM just let HP off the hook?

Anyway back on topic, SAM wasn't doing anything that was recorded in the logs. So this morning with a clearer head, I started again. Decided to create the vg long hand and then used SAM to create the logical volume with stripes etc that I wanted. Experimenting with striping/alternate paths/load balancing/etc to improve IO performance.

Thanks for the help and I guess if everything worked as it should first time, we'd learn less!