topic Re: storage in Operating System - HP-UX

storage

Nath_3 — Sat, 29 Nov 2008 15:00:01 GMT

Hi All,

I would like to know if there is a command to check that a lun in particular frame is not being used (not PVcreated).

Thanks

Re: storage

Hasan Atasoy — Sat, 29 Nov 2008 15:51:52 GMT

hi nath ,

it is very hard to know a disk is being used or not since thee is a lot of way of using the disk in the system

a.) lvm ; pvdisplay /dev/rdsk/cxtydz or strings /etc/lvmtab
b.) vxvm ; vxdisk list
c.) direct disk usage without lsm or vxvm ; bdf
d.) asm ; you have to look from oracle side.

Hasan

Re: storage

Nath_3 — Sat, 29 Nov 2008 17:43:55 GMT

Thanks

Re: storage

Johnson Punniyalingam — Sun, 30 Nov 2008 05:48:12 GMT

run following commands.

ioscan -funCdisk|grep dsk|awk '{print $1}'|xargs -i pvdisplay {}

if there is any PV which is not associated with any VG it give error for that PV ptherwise shows information like :

--- Physical volumes ---
PV Name /dev/dsk/c3t15d0
VG Name /dev/vg01
PV Status available
Allocatable yes
VGDA 2
Cur LV 2
PE Size (Mbytes) 4
Total PE 8681
Free PE 0
Allocated PE 8681
Stale PE 0
IO Timeout (Seconds) default
Autoswitch On

Thanks,
Johnson

Re: storage

Jeeshan — Sun, 30 Nov 2008 06:21:26 GMT

not pvdisplay to rdsk files

check with this command

#pvdisplay /dev/dsk/cxtydz

Re: storage

Emil Velez — Sun, 30 Nov 2008 18:15:44 GMT

vxdisk -o alldgs list

will show you disks that are used by vxvm and LVM

Re: storage

VK2COT — Sun, 30 Nov 2008 20:25:23 GMT

Hello,

You already got some responses with
useful information.

As you can see, there is no simple
way to do it with standard HP-UX.

However, there is a nice internal HP tool
called dskinfo (current version 1.03).

I am not sure if it will be released as
part of HP-UX in t he future. Currently,
it is one of support tools for HP staff.

Here is part of its report on HP-UX 11.31
server:

Disk check summary (dir "/dev/rdisk"):

device type model lba EFI FAT LIF LVM HFS VxVM VxFS
disk3 DISK ST373454LC 71687369 X _ _ _ _ _ _
disk3_p1 DISK ST373454LC 511968 _ X _ _ _ _ _
disk3_p2 DISK ST373454LC 70765568 _ _ X X _ _ _
disk3_p3 DISK ST373454LC 409600 _ X _ _ _ _ _
disk4 CDROM DVD+RW ND-2100A 0 _ _ _ _ _ _ _
disk5 DISK ST373454LC 71687369 _ _ _ X _ _ _
disk8 DISK ST373454LC 71687369 _ _ _ X _ _ _
disk9 DISK ST373454LC 71687369 X _ _ _ _ _ _
disk9_p1 DISK ST373454LC 511968 _ X _ _ _ _ _
disk9_p2 DISK ST373454LC 70765568 _ _ X X _ _ _
disk9_p3 DISK ST373454LC 409600 _ X _ _ _ _ _

Cheers,

VK2COT