To remove LSM to have more disk space

From: Padiyath Kumar <Kumar.Padiyath_at_psi.ch>
Date: Tue, 17 Jul 2001 18:08:16 +0200

  Hallo,
   I want to remove the LSM, installed for mirroring the user
   home directory partition, urgently since the user does not
   have enough disk space. The present configuration is

root:/>voldisk list

DEVICE TYPE DISK GROUP STATUS
rz0 sliced rz0 rootdg online
rz1 sliced rz1 rootdg online
rz16 sliced rz16 rootdg online
rz17 sliced rz17 rootdg online

root:/>volprint

TYPE NAME ASSOC KSTATE LENGTH COMMENT
dg rootdg rootdg - -
dm rz0 rz0 - 35564040
dm rz1 rz1 - 35564040
dm rz16 rz16 - 35564040
dm rz17 rz17 - 35564040
sd rz0-01 pl-01 - 35560000
sd rz1-01 pl-01 - 35560000
sd rz16-01 pl-02 - 35560000
sd rz17-01 pl-02 - 35560000
plex pl-01 vol01 ENABLED 71120000

/etc/fdmns link:

/etc/fdmns/data_domain:
total 0
lrwxr-xr-x 1 root system 21 Sep 17 1999 rootdg.vol01 ->
/dev/vol/1

 The file system is mounted as /home(/etc/fstab entry)
 ------------------------------------------------------

data_domain#data /home advfs rw 1 0

Can I do the following to remove the LSM to make the disks free:

 1. vdump -0uf /dev/nrmt0h /home (The OS is V4.0F)

 2. voldisk rm rz0 rz1 rz16 rz17
 
 3. voledit -g rootdg -rf rm vol01 (/dev/vol/ contains rootdg and vol01)
 
 4. rm /etc/vol/volboot

 5. disklabel -wr rz0

 6. disklabel -wr rz1

 7. disklabel rz16

 8. disklabel -wr rz17

    Then create a volume with AdvFS and mount the volume under /home
    and then vrestore from tape. Whether I get any problems if I do this?
    Each disks are 17GB. Am I missing anything?

    Thanks for your help.

    regards,
    Kumar
Received on Tue Jul 17 2001 - 16:10:05 NZST

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