topic diskinfo result strange... in Operating System - HP-UX

diskinfo result strange...

Henry Chua — Tue, 19 Oct 2004 23:21:38 GMT

Hi Guys,

Is it normal to have block per disk to be 0 under the command "diskinfo"
e.g.
"SCSI describe of /dev/rdsk/c0t5d0:
vendor: IBM
product id: DDRS-39130WS
type: direct access
size: 0 Kbytes
bytes per sector: 0
rev level: HP01
blocks per disk: 0
ISO version: 0
ECMA version: 0
ANSI version: 2
removable media: no
response format: 2 "

could this be that the disk is not mounted? anyway I did encounter problem booting up with a LV inside this PV.

Thank you all for your info.

Re: diskinfo result strange...

Sridhar Bhaskarla — Tue, 19 Oct 2004 23:29:43 GMT

Hi Henry,

Where is the disk located?.

As you can see it's size is 0. Looks like you have a bad disk. On XP/Hitachi storages you will see LUN 0 devices with 0 bytes called placeholder LUNs and the description of it would say "DISK SUBSYSTEM".

Yours doesn't seem to be the case. So, I suspect you have a bad disk in slot 5 of your disk (possibly Jamaica??) array.

-Sri

Re: diskinfo result strange...

Steven E. Protter — Tue, 19 Oct 2004 23:41:09 GMT

Many disk arrays like our Xiotech show up and are detected as disks. They are not, and will fail a hardware excercize if you try and test it.

I've taken to getting our SAN admin to setting up an actual lun and presenting it as LUN 0. this makes that problem go away.

SEP

Re: diskinfo result strange...

Sยภเl Kย๓คг — Wed, 20 Oct 2004 06:19:01 GMT

1.what is the o/p of #pvdsiplay -v /dev/rdsk/c0t5d0.
2.What is the o/p of ioscan -fnC disk : is it showing claimed HW
regards
SK

Re: diskinfo result strange...

Cheryl Griffin — Wed, 20 Oct 2004 06:27:56 GMT

Size is 0 as well. It looks like you have a hardware problem with this disk.