not able to assign disk to guest from host

[gb karki]

Hi,

When i'm assigning the disk to guest from host, i'm getting below mention errors.
Please help.

Thanks in advance.

# hpvmmodify -P vmnode2 -a disk:avio_stor::disk:/dev/rdisk/disk21
hpvmmodify: ERROR (vmnode2): Device file '/dev/rdisk/disk21' is a server-restricted device and cannot be used by a guest while restricted. See 'hpvmdevmgmt -l rdev:/dev/rdisk/disk21'.
hpvmmodify: Unable to create device disk:avio_stor:0,1,0:disk:/dev/rdisk/disk21.
hpvmmodify: WARNING (vmnode2): Device file '/dev/rdisk/disk21' is a server-restricted device and cannot be used by a guest while restricted. See 'hpvmdevmgmt -l rdev:/dev/rdisk/disk21'.
hpvmmodify: ERROR (vmnode2): Due to errors affecting the device database, the guest configuration file will not be updated.
hpvmmodify: Unable to modify the guest.
# hpvmmodify -P vmnode2 -a disk:scsi::disk:/dev/rdisk/disk21
hpvmmodify: ERROR (vmnode2): Device file '/dev/rdisk/disk21' is a server-restricted device and cannot be used by a guest while restricted. See 'hpvmdevmgmt -l rdev:/dev/rdisk/disk21'.
hpvmmodify: Unable to create device disk:scsi:0,2,1:disk:/dev/rdisk/disk21.
hpvmmodify: WARNING (vmnode2): Device file '/dev/rdisk/disk21' is a server-restricted device and cannot be used by a guest while restricted. See 'hpvmdevmgmt -l rdev:/dev/rdisk/disk21'.
hpvmmodify: ERROR (vmnode2): Due to errors affecting the device database, the guest configuration file will not be updated.
hpvmmodify: Unable to modify the guest.

Regards
Karki

[Torsten.]

This is a protected disk used by host. Check your device configuration.

[gb karki]

Hi Torsten,

I'm new in vm, can you tell me how to unprotect or how to assign this to disk other guest.

Regards
Karki

[sujit kumar singh]

hi
A device when made restricted cant be assigned to IVM guest. the reason of doing so is that one does not assign a Host Device to a guest, like in case of disk that can cause data loss.

check the configuration as suggested using the commands
#hpvmstatus -v -P
and
#hpvmmgmtdb -l rdev:/dev/rdisk/disk21

so as to find more details for the same.

in that case if this is beong used by host then try using some other disk for the VM guest.

regards
sujit

[gb karki]

Now i'm getting below error.


# hpvmmodify -P vmnode2 -a disk:scsi::disk:/dev/sdisk/disk23
hpvmmodify: ERROR (vmnode2): '/dev/sdisk/disk23' backing device does not exist.
hpvmmodify: Unable to create device disk:scsi:0,2,2:disk:/dev/sdisk/disk23.
HPVM guest vmnode2 configuration problems:
Warning 1 on item /dev/sdisk/disk21: '/dev/sdisk/disk21' backing device does not exist.
Warning 2 on item /dev/sdisk/disk23: '/dev/sdisk/disk23' backing device does not exist.
These problems may prevent HPVM guest vmnode2 from starting.
hpvmmodify: The modification process is continuing.

[melvyn burnard]

Well the error message is self explanatory:
# hpvmmodify -P vmnode2 -a disk:scsi::disk:/dev/sdisk/disk23
hpvmmodify: ERROR (vmnode2): '/dev/sdisk/disk23' backing device does not exist.

there is no sdisk, it should be rdisk

[gb karki]

Hi Burnard,

Sorry for typo mistake.

i'm getting below error.


# hpvmmodify -P vmnode2 -a disk:scsi::disk:/dev/rdisk/disk21
hpvmmodify: ERROR (vmnode2): Device file '/dev/rdisk/disk21' is a server-restricted device and cannot be used by a guest while restricted. See 'hpvmdevmgmt -l rdev:/dev/rdisk/disk21'.
hpvmmodify: Unable to create device disk:scsi:0,2,1:disk:/dev/rdisk/disk21.
hpvmmodify: WARNING (vmnode2): Device file '/dev/rdisk/disk21' is a server-restricted device and cannot be used by a guest while restricted. See 'hpvmdevmgmt -l rdev:/dev/rdisk/disk21'.
hpvmmodify: ERROR (vmnode2): Due to errors affecting the device database, the guest configuration file will not be updated.
hpvmmodify: Unable to modify the guest.
#

[unixdaddy]

Hi,

I suspect disk21 is your internal disk which is used in your host VG00. This is automatically restricted. Do you have other disks in your system (either internally or from SAN) that aren't assigned to the host VG00 or aren't in use?

do an lvmadm -l on your VM host and see what disks are assigned to VGs on your host.

[gb karki]

Hi,

Yesterday i have resolved the problem.
I have removed these two disk entry from hpvm_mgmtdb file and added these disk to guest. Its success.

Thanks for your responce.

Regards
Karki

[sujit kumar singh]

Hi Karki,

However this is suggested that you do not edit the /var/opt/hpvm/common/hpvm_mgmtdb file manually.

Instead always check that if a device is restricted then it may be to make that device more secure in VM environment to avoid the human errors of getting that destroyed.

there is a -f option with hpvmmodify also that you can use to change the device assignments which performa smaller checks on the HPVM_DB , but should be used witha grreat caution!

regards
sujit