Problem start Virtual Machine Guest (mount FileSystem)

[Eli Daniel]

Hi,
i have the problem start VM Guest:

UX:vxfs fsck: ERROR: V-3-25742: /dev/vg01/lvusersapPBP:sanity check failed: cannot open /dev/vg01/lvusersapPBP: No such device or address

[Torsten.]

IMHO the messages says all:

cannot open /dev/vg01/lvusersapPBP: No such device or address

[Eli Daniel]

Hi Torsten
after you start the computer:
run command
mount /dev/vg01/lvusersapPBP /usr/sap/PBP

mount point is activated

[Steven E. Protter]

Shalom,

fsck probably needs to be run on the file system. After that you can probably start the guest.

SEP

[Eli Daniel]

Steven,
command was executed

fsck-F vxfs-y-or full / dev/vg01/lvusersapPBP

But after restarting shows the same error message

[Torsten.]

It's not clear where you get what message and where you run what command - guest or host.

[Eli Daniel]

Torsten, the message show in the Virtual Machine Guest, the filesystem add in the fstab, but starting VM guest not mount the filesystem.

[Kapil Jha]

We would need to know how your VM is using disk, is it using LVdisk from host.
Or vg01 is created inside virtal machine.

HOST#hpvmstatus -v -P VM_name

is your VM up, check if you have both
/dev/vg01/lvusersapPBP and
/dev/vg01/rlvusersapPBP

BR,
Kapil+

[Eli Daniel]

yes, in the virtual host is add the lv disk to virtual machine guest

disk avio_stor 0 0 0 10 0 disk /dev/rdsk/c41t8d3

Yes, in the fstab add the line:

/dev/vg01/lvusersapPBP /usr/sap/PBP vxfs delaylog,nodatainlog,largefiles 0 2

[Torsten.]

On which kind of physical storage is the device /dev/rdsk/c41t8d3?

SAN based array?

Multipath software in use (if hp-ux 11.23)?

[Eli Daniel]

Yes torten, the storage is EMC.

The disk is raid 1.

[Eli Daniel]

To you had this error at some point?

[Torsten.]

You will have problems if you assign a multipathed disk without multipathing to a guest.

[SUDHAKAR_18]

I too suspect a disk failure.

please attach
#hpvmdevmgmt -l from vmhost.
#hpvmstatus
#hpvmstatus -P
#ioscan -fnC disk --> from vmhost
and also check /var/opt/resmon/log/event.log on vmhost

[Eli Daniel]

Hi, anex the information

[SUDHAKAR_18]

disk avio_stor 0 0 0 0 0 disk /dev/rdsk/c41t1d3
disk avio_stor 0 0 0 1 0 lv /dev/vg00/rlvepapp1
disk avio_stor 0 0 0 2 0 disk /dev/rdsk/c41t1d4
disk avio_stor 0 0 0 3 0 disk /dev/rdsk/c41t1d5
disk avio_stor 0 0 0 4 0 disk /dev/rdsk/c41t1d6
disk avio_stor 0 0 0 5 0 disk /dev/rdsk/c41t1d7
disk avio_stor 0 0 0 6 0 disk /dev/rdsk/c41t2d0
disk avio_stor 0 0 0 7 0 disk /dev/rdsk/c41t2d1
disk avio_stor 0 0 0 8 0 disk /dev/rdsk/c41t2d2
disk avio_stor 0 0 0 9 0 disk /dev/rdsk/c41t2d3
disk avio_stor 0 0 0 10 0 disk /dev/rdsk/c41t8d3
disk avio_stor 0 0 0 11 0 disk /dev/rdsk/c41t9d0
disk avio_stor 0 0 0 12 0 disk /dev/rdsk/c41t9d1
disk avio_stor 0 4 0 0 0 disk /dev/rdsk/c41t2d4
disk avio_stor 0 4 0 1 0 disk /dev/rdsk/c41t2d6
disk avio_stor 0 4 0 2 0 disk /dev/rdsk/c41t2d5
disk avio_stor 0 4 0 3 0 disk /dev/rdsk/c40t2d0
disk avio_stor 0 4 0 4 0 disk /dev/rdsk/c40t5d3
disk avio_stor 0 4 0 5 0 disk /dev/rdsk/c40t3d6
disk avio_stor 0 4 0 6 0 disk /dev/rdsk/c40t3d5
disk avio_stor 0 4 0 7 0 disk /dev/rdsk/c40t3d4

all disks mentioned are in available state on vmhost ????

please check for no hardware devices in ioscan -fnC disk.


have you checked to boot the IVM guest with signle user mode ?

boot to single user mode, and comment the entries in /etc/fstab.

and try to boot to normal mode

[Eli Daniel]

Hi,
I think found the problem.

the software storage is powerpath

the run command:
powermt display

==============================================================================
----- Host Bus Adapters --------- ------ I/O Paths ----- ------ Stats ------
### HW Path Summary Total Dead IO/Sec Q-IOs Errors
==============================================================================
31 0/0/6/1/0/4/0.20.36.0.0 optimal 7 0 - 0 0
35 0/0/4/1/0/4/1.20.36.0.0 optimal 16 0 - 0 0
39 0/0/4/1/0/4/1.20.36.0.1 optimal 27 0 - 0 0
40 0/0/12/1/0/4/0.20.36.0.0 optimal 5 0 - 0 0
41 0/0/12/1/0/4/0.20.36.0.1 degraded 17 2 - 0 29
48 UNKNOWN failed 12 12 - 0 0
49 UNKNOWN failed 5 5 - 0 0
51 0/0/6/1/0/4/1.19.171.128.0 optimal 16 0 - 0 0
52 0/0/6/1/0/4/1.19.171.128.1 optimal 27 0 - 0 0
54 0/0/4/1/0/4/0.19.171.128.0 optimal 7 0 - 0 0
58 0/0/4/1/0/4/0.19.171.128.1 optimal 1 0 - 0 0
59 0/0/6/1/0/4/0.20.36.0.1 optimal 1 0 - 0 0

the disk assign in the LUN 41 0/0/12/1/0/4/0.20.36.0.1

thanks for information.

[Chandrahasa s]

Hi,

I understand from your above statement that
after vmguest booting your not able mount mount points which are under vg01.

Provide vgdisplay -v vg01 from guest.
Provide strings /etc/lvmtab from guest.
Provide ioscan -fnC disk from guest.

From Host.

ioscan -fnC disk

Chandra

[Eli Daniel]

Thanks