Change a Minor Number on a LV

[kozlow]

root@ltpt0012 /dev # crfs -v jfs2 -d "db2bkups_new_lv" -m "/db2bkups_new"
0516-020 lcreatelv: Logical volume name or minor number already
in use.
0516-822 mklv: Unable to create logical volume.
crfs: 0506-902 Cannot create logical volume.


I do not see it in use...

root@ltpt0012 /dev # ls -l | grep 49
crw------- 1 root system 49, 0 Jun 18 15:22 __vg49
brw-rw---- 1 root system 49, 3 Jun 18 15:22 db2bkups_new_lv
brw-rw---- 1 root system 49, 1 Mar 15 2007 db_backup_lv
crw-rw---- 1 root system 49, 0 Mar 15 2007 db_backup_vg
brw-rw---- 1 root system 49, 2 Apr 02 2007 loglv04
crw-rw---- 1 root system 49, 3 Jun 18 15:22 rdb2bkups_new_lv
crw-rw---- 1 root system 49, 1 Mar 15 2007 rdb_backup_lv
crw-rw---- 1 root system 49, 2 Mar 15 2007 rloglv04

is there a way to change the minor number to something like 99 and see if that clears up the issue?

 

[DukeSSD]

I'd start with synclvodm.
Looks like it does not recognise the lv by name because the message is from lcreatelv.
I wouldn't go poking about in the device numbers if at all possible.

 

[unixfreak]

What's this:

brw-rw---- 1 root system 49, 3 Jun 18 15:22 db2bkups_new_lv

???

-----
Cheers,
Henrik Morsing

http://www.aixperts.co.uk/

Join us on irc://chat.freenode.net channel ##aix

 

[p5wizard]

@unixfreak

Henrik, a LV like so many other disk devices has 2 /dev names, one is a block-IO special file (b) the other is a raw or character-IO special file (r).


@Kozlow,

I would try the operation again, but with a shorter LV name

[tt]chlv -n db2bkn_lv db2bkups_new_lv[/tt]

And if this operation doesn't fail, then:

[tt]crfs -v jfs2 -d "db2bkn_lv" -m "/db2bkups_new"[/tt]



HTH,

p5wizard

 

[unixfreak]

p5wizard said:

> Henrik, a LV like so many other disk devices has 2 /dev names, one is a block-IO special file (b) the other is a raw or character-IO special file (r).

Not sure why you're saying that but I must have been tired posting that. The command is using the device, not creating it. duh...



-----
Cheers,
Henrik Morsing

http://www.aixperts.co.uk/

Join us on irc://chat.freenode.net channel ##aix