Changes To LVM crashes system

[Asim_5]

i have hp-ux 11i version 2 installed on the machine.

now after changes some volume group changes to extend size the system got crash and wont boot up.

i used the command AT ISL prompt>hpux -lm boot to troubleshoot the problem

now i am using vgcfgrestore command but how i get my disk name as ioscan with -fnC disk not work at boot shell.

Is there any other way for recovering the system as my cdrom is not working.

system is j5600 workstation

[Jeeshan]

if you have ignite backup, you can enter in LVM maintenace mode to troubleshoot.

[Torsten.]

"... after changes ..."

What changes you did?

[Asim_5]

i donot know exactly wht i did on the system its like some vg change configuration.

i donot have ignite backup also.
Even i am not able to get syslogs from hpux -lm boot command.

all boot path also not working they give error of some LVM crash.

some one help me how i proceed

[Torsten.]

Are you able to boot using "ISL> hpux -lm"?

[Asim_5]

yes i can log on using ISL>hpux lm boot

[Torsten.]

Are you able to activate vg00:

# vgchange -a y vg00

if, try

# vgdisplay -v vg00

[Asim_5]

when i use the command
# at LVM mainatiance mode
vgchange -a y vg00
i get these errors

vgchange:warning:couldn't attach to the volume group "/dev/dsk/c3t5d0"
vgchange:warning:couldnt query physical volume "/dev/dsk/c3t5d0"
LVM:VG 64 0 0x000000:Quorum check failed
the specified path doesnot correspond to phsical volume attached to this volume group
vgchange:Warning:couldn't query all of the physical values
Vgchange:Couldn't activate values group Vg00
Quorum are not present,or some physical volumes are missing


kinldy help me

[Torsten.]

Now try:

# vgchange -q n -a y vg00

It looks like one of your disks is bad.

Post also

# vgdisplay -v vg00
# strings /etc/lvmtab
# ioscan -fn

[Asim_5]

now when i use the command

vgchange -q n -a y vg00

LVM:Quorum overite:Picking the latest copy from the available configuration and status information
Activated volume group
volume group vg00 has been successfully changed.


now regarding ur else commands

1.vgdisplay -v vg00
its too long how can i give you the file as i am in maintaince mood of LVM.

2.strings /etc/lvmtab
not found

3.ioscan -fn
again the file is big how i send you

thx for your interest in the problem,kindly tell me further things to proceed

[Torsten.]

Do a

# mount -a

now in order to have access to "strings".

Simply record the output within your client and attach this file.

[Asim_5]

thats wht i am asking from you

which client you re talking about here,as system is not accessble external source.

or is there any way to connect console to J5600 system

[Torsten.]

I mean the terminal, if you are using a PC via serial connection with some emulation like putty you can easily capture the output.

[Asim_5]

Dear torsten,
you get this wrongly

Its J5600 workstation system,and i am seeing everything on Monitor screen,

is there any option in J5600 to connect through serial or console cable,i donot find any..

Now i have rebooted the system now i have error seen tht /ioconfig/stand and /ioconfig/etc are inconsistent
system is going to shutdown

[Torsten.]

You can use a PC with an null modem cable even with a 700 series workstation, no problem.

But due to this bad disk you can even try to boot with quorum mode up to run level 3 - so you will have network access.

Example:

Main Menu: Enter command or menu > bo pri
Interact with IPL (Y, N, or Cancel)?> y

Booting...
Boot IO Dependent Code (IODC) revision 1


HARD Booted.

ISL Revision A.00.38 OCT 26, 1994

ISL> hpux -lq

[Torsten.]

Note: in order to use a serial terminal you need to disconnect the monitor, mouse and keyboard first.

[Asim_5]

Dear Torstan.

Thx for such a quick response.

now ISL not working when i type boot pri
and interact with ISL press y

it displays not a valid boot path
when i use alternat path it displayed not found

Now............

[Steven E. Protter]

Shalom,

Seems you have had a hardware failure.

Steps:
1) Get hardware checked/fixed.
2) Restore Ignite backups if available.

SEP

[Asim_5]

i have checked all hardware.

except cdrom lens week rest all hardware is fine.

this all happens after changes to LVM configuration.

[Torsten.]

But the path was valid before?

Did you try the SEArch command from the boot menu?

[Asim_5]

the system is successfully booted
now isl is running
after issuing the command ISL >hpux -lq

i am now on desktop screen,
now would u like me to troubleshoot it more?

[Torsten.]

Now collect the information mentioned earlier.

[Asim_5]

Dear Torsten,

Find the attached file for the output u requested.


Thanks again.

[Torsten.]

Both disks where mirrored before.

Did your "changes" change this?

Do you want to mirror the disks again?

[Asim_5]

i don't know where is second disk gone,what i remember is that may be some size is assigned from second disk and after that system wont boot now that disk is shown unused.

i have attached the SAM log