Thanks to Howard E. Arnold, Jeff Beck, and alan_at_nabeth.cxo.dec.com.
They boosted my confidence as they acknowledged that it shouldn't have any
negative impact
I went ahead an ran the volplex -o rm dis oracle-02 and
then created a new volume 'test' which contains the
three subdisks as members of the new 'test-01' plex and
successfully started the volume. However, when I try to
mount the volume, it fails thus:
# mount -t advfs u06test#u06 /u06
Cannot read last block (106692119) of virtual disk /dev/vol/oracledg/test
Mounting fileset in read-only mode.
How do I overcome this error so the fileset can be rw?
Below is all the details of the setup, and following that is the original
question.
# df -k
Filesystem 1024-blocks Used Available Capacity Mounted on
u06test#u06 53346056 16 53335288 1% /u06
# volprint -tg oracledg
DG NAME GROUP-ID
DM NAME DEVICE TYPE PRIVLEN PUBLEN PUBPATH
V NAME USETYPE KSTATE STATE LENGTH READPOL PREFPLEX
PL NAME VOLUME KSTATE STATE LENGTH LAYOUT ST-WIDTH
MODE
SD NAME PLEX PLOFFS DISKOFFS LENGTH DISK-NAME DEVICE
dg oracledg 971303638.1616.ALPHA-EMS2
dm oracled04 rz27 sliced 1024 35564040 /dev/rrz27g
dm oracled05 rz28 sliced 1024 35564040 /dev/rrz28g
dm oracled06 rz29 sliced 1024 35564040 /dev/rrz29g
sd oracled04-01 test-01 0 0 35564032 oracled04 rz27
sd oracled05-01 test-01 35564032 0 35564032 oracled05 rz28
sd oracled06-01 test-01 71128064 0 35564032 oracled06 rz29
pl test-01 test ENABLED ACTIVE 106692096 STRIPE 128
RW
v test fsgen ENABLED ACTIVE 106692096 SELECT test-01
Disks rz27, rz28 and rz29 are each 18GB disks.
They have been set as lsm disks named oracled04, oracle05 & oracle06
LSM disk 'oracled04' Properties
Disk type: sliced
Public region rz27g
private region rz27h
public region offset 8k
private region offset 0s
public region length 17782020k
private region length 512k
Subdisk 'oracled04-01' Properties
Disk name: oracle04
Subdisk name: oracled04-01
Disk offset: 8k
Subdisk length: 17782016K
Plex name: test-01
Plex offset 0s
Plex 'test-01' Properties
Plex name: test-01
Plex state: ACTIVE
Volume: test
Layout: Striped
Stripe width: 128
Subdisks: 3
Kernel State: Enabled
Length: 53346048k
Volume 'test' Properties
Volume name: test
Usage Type: fsgen
Utility State: Started
User: root
Group: system
Mode: 0600
Length: 53346048K
Plexes: 1
Based on plex layouts
> -----Original Message-----
> Hi Admins,
>
> I want to "break" a set of mirrored plexes in order to use
> the disk space on the two plexes as individual volumes.
> Can I do that without a negative impact to the existing data
> on the volume?
Received on Fri Dec 01 2000 - 16:55:27 NZDT