topic Re: Installed new hard drive... in Operating System - HP-UX

Installed new hard drive...

Harry Yu — Thu, 22 Jul 2004 16:46:15 GMT

Hi guys,

One of the hard drives in our UX server die yesterday. I replaced it with a new drive today. However, I've never install a new drive to a UX server before so I don't know what do I have to do to prepare it and add it into the volume to replace the old drive's position. Please help.

- Harry

Re: Installed new hard drive...

Michael Tully — Thu, 22 Jul 2004 16:58:54 GMT

If it was part of an existing volume group, you need to use the 'vgcfgrestore' command. e.g.

# vgcfgrestore /dev/myvg /dev/rdsk/c2t6d0

The man pages have other examples. If the disk was not using any type of mirroring, then you'll have to restore your data.

Re: Installed new hard drive...

Harry Yu — Thu, 22 Jul 2004 17:37:03 GMT

Thanks for your reply, Michael.

Do I need to format the new hard drive first? I'm more a Window admin, so I am not sure how to prepare the hard drive.

Re: Installed new hard drive...

Mel Burslan — Thu, 22 Jul 2004 17:40:49 GMT

there is no "formatting" in hpux or in any modern flavor of unix, as opposed to the same concept in Windows.

when you run the vgcfgrestore command, it gets the header information of the old disk from the database and writes it over to the new disk.

if you can elaborate what the exact situation is, you may get more help. Like was thisa mirror disk ? Was this the bootable disk ? Was it a disk with some application data ?

Re: Installed new hard drive...

Harry Yu — Thu, 22 Jul 2004 17:45:00 GMT

This drive is solely use for our database data. It's volume 2 out of 5 volumes. I tried Michael's suggestion and got the following...
---------------------------------------------
# vgcfgrestore -o /dev/vg03 /dev/dsk/c0t1d0
Usage: vgcfgrestore
[-R]
[-F]
{ -n vgname |
-f VGConfPath }
{ -l |
{[-o OldPVPath] PVPath}}
OldPVPath and PVPath : character special files
More arguments required.
---------------------------------------------

Re: Installed new hard drive...

Mel Burslan — Thu, 22 Jul 2004 17:51:24 GMT

do not use old pv path directive use the commad as follows:

vgcfgrestore -n /dev/vg03 /dev/dsk/c0t1d0

Re: Installed new hard drive...

Michael Tully — Thu, 22 Jul 2004 17:54:10 GMT

Try using the -n option.

# vgcfgrestore -n /dev/vg03 /dev/dsk/c0t1d0

(The man page has this example, the one I listed before had a typing error)

Re: Installed new hard drive...

Harry Yu — Thu, 22 Jul 2004 18:18:00 GMT

hi guys,

When I use the command 'vgcfgrestore -n /dev/vg03 /dev/dsk/c0t01d0', I got the following error...
--------------------------------------------
# vgcfgrestore -n /dev/vg03 /dev/dsk/c0t1d0
Configuration info for Physical Volume "/dev/dsk/c0t1d0" not found
in "/etc/lvmconf/vg03.conf" :
Character-special file for PV not supplied on command line, OR
PV did not belong to Volume Group /dev/vg03 when configuration file was created.
You have mail in /var/mail/root
---------------------------------------------
help help! :( 42 users are on my back. :(

Re: Installed new hard drive...

Mel Burslan — Thu, 22 Jul 2004 18:21:26 GMT

my bad... it is not dsk, it should be rdsk... sorry.

vgcfgrestore -n /dev/vg03 /dev/rdsk/c0t1d0

Re: Installed new hard drive...

Harry Yu — Thu, 22 Jul 2004 18:23:58 GMT

Ok guys, I use the rdsk instead of dsk. Now, it is not doing anything. It's just kind of hang there. I can't cancel the job nor see anything happening. I don't see the disk running either. Well, it blinks but definately not running. How can I tell if it's doing something? I use TOP and I don't see the process going. Is it usually take awhile? Thanks.

Re: Installed new hard drive...

Michael Tully — Thu, 22 Jul 2004 18:24:17 GMT

We need to ascertain whether your using the correct volume group and physical volume. Please supply:

vgcfgrestore -n /dev/vg03 -l
strings /etc/lvmconf/vg03
vgdisplay -v /dev/vg03

Re: Installed new hard drive...

Harry Yu — Thu, 22 Jul 2004 18:27:52 GMT

Alright Mike, here are the returns...
-----------------------------------------------
# vgcfgrestore -n /dev/vg03 -l
Volume Group Configuration information in "/etc/lvmconf/vg03.conf"
VG Name /dev/vg03
---- Physical volumes : 2 ----
/dev/rdsk/c0t1d0 (Non-bootable)
/dev/rdsk/c2t1d0 (Non-bootable)
# strings /etc/lvmconf/vg03
/etc/lvmconf/vg03: No such file or directory
# vgdisplay -v /dev/vf03
vgdisplay: Volume group "/dev/vf03" does not exist in the "/etc/lvmtab" file.
vgdisplay: Cannot display volume group "/dev/vf03".
---------------------------------------------
Thanks a lot guys! :~)

Re: Installed new hard drive...

Mel Burslan — Thu, 22 Jul 2004 18:28:20 GMT

vgcfgrestore command does not take any time at all. prolonged wait may be a sign of a dead disk drive or controller.

along with the commands Michael indicated, run this one and include the output of it as well

ioscan -fnC disk

Re: Installed new hard drive...

Mel Burslan — Thu, 22 Jul 2004 18:29:51 GMT

another output please :

strings /etc/lvmtab

Re: Installed new hard drive...

Harry Yu — Thu, 22 Jul 2004 18:31:38 GMT

Hi Mel,

The drive is new so I think it isn't bad. Coz I tested the bad drive and it was BAD. Ok, here is the return from ioscan...
-----------------------------------------------
# ioscan -fnC disk
Class I H/W Path Driver S/W State H/W Type Description
=====================================================================
disk 0 8/4.0.0 sdisk CLAIMED DEVICE IBM DGHS09Y
/dev/dsk/c0t0d0 /dev/rdsk/c0t0d0
disk 1 8/4.1.0 sdisk NO_HW DEVICE TANDEM 4609-A*csm#
/dev/dsk/c0t1d0 /dev/rdsk/c0t1d0
disk 2 8/4.2.0 sdisk CLAIMED DEVICE IBM DGHS09Y
/dev/dsk/c0t2d0 /dev/rdsk/c0t2d0
disk 3 8/4.5.0 sdisk CLAIMED DEVICE SEAGATE ST34573WC
/dev/dsk/c0t5d0 /dev/rdsk/c0t5d0
disk 4 8/4.8.0 sdisk CLAIMED DEVICE SEAGATE ST34573WC
/dev/dsk/c0t8d0 /dev/rdsk/c0t8d0
disk 5 8/4.9.0 sdisk CLAIMED DEVICE IBM DGHS09Y
/dev/dsk/c0t9d0 /dev/rdsk/c0t9d0
disk 6 8/4.10.0 sdisk CLAIMED DEVICE IBM DGHS09Y
/dev/dsk/c0t10d0 /dev/rdsk/c0t10d0
disk 7 8/12.0.0 sdisk CLAIMED DEVICE IBM DGHS09Y
/dev/dsk/c2t0d0 /dev/rdsk/c2t0d0
disk 8 8/12.1.0 sdisk CLAIMED DEVICE IBM DGHS09Y
---------------------------------------------
Which I believe the TANDEM is the new boy in the box. HW indicate hardware problem?

Re: Installed new hard drive...

Mel Burslan — Thu, 22 Jul 2004 18:34:21 GMT

the device reportin NO_HW, which is the second from the top, is your problem. The replaced drive was either dead on arrival or was not properly connected to the system by the person who replaced it.

You need some h/w support before anything else.

Re: Installed new hard drive...

Harry Yu — Thu, 22 Jul 2004 18:41:46 GMT

Hi guys,

Ok, I re-inserted the hard drive into the rack and run IOScan and everything looks good. No more "NO_HW". It shows "CLAIMED" just like other drives. I run the 'vgcfgrestore -n /dev/vg03 /dev/rdsk/c0t1d0' command again and it's hanging there now.

Re: Installed new hard drive...

Harry Yu — Thu, 22 Jul 2004 18:45:06 GMT

ok, here is the output of "strings /etc/lvmtab"...
-----------------------------------------------
# strings /etc/lvmtab
/dev/vg00
/dev/dsk/c0t5d0
/dev/dsk/c0t8d0
/dev/vg01
/dev/dsk/c0t9d0
/dev/dsk/c0t10d0
/dev/vg02
/dev/dsk/c0t0d0
/dev/dsk/c2t0d0
/dev/vg03
/dev/dsk/c0t1d0
/dev/dsk/c2t1d0
/dev/vg04
/dev/dsk/c0t2d0
/dev/dsk/c2t2d0
---------------------------------------------

One additional thing is now the vgcfgrestore command is running (hanging) and I run ioscan again and the drive shows "NO_HW" again. Is that related?

Re: Installed new hard drive...

Harry Yu — Thu, 22 Jul 2004 18:49:58 GMT

Some additional info about the new drive...
-----------------------------------------------
# diskinfo -v /dev/rdsk/c0t1d0
SCSI describe of /dev/rdsk/c0t1d0:
vendor: TANDEM
product id: 4609-A*csm#
type: direct access
size: 8980000 Kbytes
bytes per sector: 512
rev level: 0180
blocks per disk: 17960000
ISO version: 0
ECMA version: 0
ANSI version: 3
removable media: no
response format: 2
(Additional inquiry bytes: (32)38 (33)30 (34)33 (35)39 (36)37 (37)33 (38)46 (
39)37 (40)35 (41)4d (42)53 (43)50 (44)54 (45)38 (46)30 (47)31 (48)38 (49)20 (50)
20 (51)0 (52)0 (53)0 (54)0 (55)0 (56)0 (57)0 (58)0 (59)0 (60)0 (61)0 (62)0 (63)0
(64)0 (65)0 (66)0 (67)0 (68)0 (69)0 (70)0 (71)0 (72)0 (73)0 (74)0 (75)0 (76)0 (
77)0 (78)0 (79)0 (80)0 (81)0 (82)0 (83)0 (84)0 (85)0 (86)0 (87)0 (88)0 (89)0 (90
)0 (91)0 (92)0 (93)30 (94)39 (95)52 (96)49 (97)39 (98)39 (99)33 (100)32 (101)37
(102)0 (103)30 (104)30 (105)30 (106)31 (107)32 (108)32 (109)30 (110)39 (111)4c (
112)33 (113)39 (114)32 (115)38 (116)20 (117)20 (118)20 (119)20 (120)20 (121)46 (....
---------------------------------------------
So, the drive is good until I run the vgcfgrestore command and the drive would "NO_HW" in ioscan.

Re: Installed new hard drive...

Michael Tully — Thu, 22 Jul 2004 18:52:52 GMT

Run diskinfo on the drive. I suspect you have a dud.

# diskinfo -v /dev/rdsk/c0t1d0