vgimport & control file

[msaygak]

I have drive that previosly was in mirror with other. I want to import this drive in new system. But when I'm trying to import it I receve a message:
vgimport: Cannot open the control file "/dev/vgtest/group":
I think that couse of error is incorrect minor. But i cannot create control file with minor of previous control file.

Here is all my actions:

#pvck -n /dev/dsk/c20t1d2
pvck: using default blocksize
pvck: /dev/dsk/c20t1d2: LVM checksums usable
#vgdisplay vgtest
vgdisplay: Volume group "/dev/vgtest" does not exist in the "/etc/lvmtab" file.
vgdisplay: Cannot display volume group "vgtest".
#mkdir /dev/vgtest
#mknod /dev/vgtest/group c 64 0x100000
#vgimport vgtest /dev/dsk/c20t1d2
vgimport: Cannot open the control file "/dev/vgtest/group":
No such device
#ls -l "/dev/vgtest/group"
crw-r--r-- 1 root sys 64 0x100000 Sep 9 16:27 /dev/vgtest/group

What should I do to import this drive?

[melvyn burnard]

64 0x100000 is the major/minor number
what OS version is this?
Given that minor number, the first two digits are the number of the vg in hex.
This means that you are adding VG number 16, and if you have HP-UX 11iv2 or below, then you need to have the maxvgs kernel parameter set to allow this many VG's

What other VG minor numbers are in use?
ll /dev/vg*/group

Maybe see if there is a number free between 00 and 09, if so try that instead of 10

[Torsten. · Accepted solution]

The minor number 0x100000 is probably too high if your maxvg maximum is 16.

[James R. Ferguson]

Hi:

To add to the 'maxvgs' parameter discussion. This is zero-relative, so a 'maxvgs' value of decimal 17 would be required to use a minor number of decimal 16 (or 0x10).

Regards!

...JRF...

[msaygak]

Thanks!
maxvg was set to 10.