11-16-2009
copy failing disk to Spare
Hi Guys,
I have a failing 4gb (c0t5d0) drive that contains lvol4 -8 on hp-ux. It's not the boot disk but is part of VG00 volume group. Within that group, I have a disk (c0t4d0) of the same size that has 1 lvol on it for swap(4gb) I also have a seperate 1.5 gb swap volume on another physical disk
Can I remove the 4gb swap volume(lvol9) and then somehow copy the failing disk to the now empty swap disk. If this is possible, can you please help me with the order/commands I will need to perform this.
I'm assuming the following will work just need clarification -
goto Sam and remove the 4gb Swap volume from physical disk c0t4d0
copy from c0t5d0 to c0t4d0 using 'dd if=c0t5d0 of=c0t4d0
shut server down and phyisically swap c0t5d0 for a new drive,
change c0t4d0 to c0t5d0 physical address
then reboot
does this make sense?
I'm assuming the new empty physical disk will need to be c0t4d0. Will the system recognise that lvol4-8 are on the right disk?
Any help with this will be great as I don't want to lose any data
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LEARN ABOUT OSF1
volencap
volencap(8) System Manager's Manual volencap(8)
NAME
volencap, volreconfig - Encapsulates disks, partitions, or AdvFS domains
SYNOPSIS
/usr/sbin/volencap [-g diskgroup] [-p volprefix] [privlen=nn] [nconfig=nn] { diskname | partition_name | domain_name }...
/usr/sbin/volencap -k { diskname | partition_name | domain_name }...
/usr/sbin/volencap -k -a
/usr/sbin/volencap -s
/sbin/volreconfig
OPTIONS
Puts the encapsulated disk into the disk group specified by disk group ID or disk group name. Instructs volencap to use the specified vol-
prefix as the prefix for LSM volume names generated. This is useful if the LSM volume names generated already exist. Instructs volencap to
remove any pending encapsulation requests for the specified disk(s), partition(s), or domain(s). Instructs volencap to remove all pending
encapsulation requests. Displays all pending encapsulation requests.
DESCRIPTION
Disk partitions that have data can be added to LSM using the encapsulation process. This enables users with existing data in disk parti-
tions to easily migrate to the use of LSM volumes instead of disk partitions.
The /usr/sbin/volencap command is used to encapsulate one or many disk partitions or AdvFS domains.
If an individual partition is specified for encapsulation, the volencap command creates a nopriv disk and a volume for that partition.
If an entire disk is specified, the volencap command creates a nopriv disk and volume for each in-use partition on the disk.
If an AdvFS domain is specified, all disk partitions in the domain are converted to LSM volumes.
You can use the volencap command to encapsulate the partitions on the boot disk, including the root file system, primary swap, usr and var
partitions, to place them under LSM control. See the Logical Storage Manager manual for more information on encapsulating these partitions.
The volencap command can be run directly or through the voldiskadm menus. The volencap command generates LSM commands that are later exe-
cuted by the /sbin/volreconfig command to perform the actual conversion of disk partitions to LSM volumes.
If the disk partition contains a mounted file system or is otherwise open or in use, the volreconfig command will reboot the system to com-
plete the encapsulation process. If you cannot reboot the system at the time you encapsulate the disk partition, either defer running the
volreconfig command until you can reboot the system, or unmount or close the disk partition, then run the volreconfig command.
See the Logical Storage Manager manual for more details.
ATTRIBUTES
Specifies the size of the LSM private region in bytes, for example, privlen=1024. Specifies the number of log copies and copies of the
configuration database, for example, nconfig=0.
EXAMPLES
To encapsulate all disk partitions on the boot disk called dsk0 to LSM volumes, enter: # volencap dsk0 # volreconfig
The volreconfig command will request confirmation prior to rebooting the system. The LSM command scripts created by the volencap
command will execute as the system reboots. To encapsulate only the root file system (dsk0a) and swap (dsk0b) partitions on the
boot disk, enter: # volencap dsk0a dsk0b # volreconfig
The volreconfig command will request confirmation prior to rebooting the system. The LSM command scripts created by the volencap
command will execute as the system reboots. To convert all disk partitions in the AdvFS domain called dom1 to LSM volumes, enter: #
volencap dom1 # volreconfig
The volreconfig command will determine if the domain is active, and if so, request confirmation prior to rebooting the system. The
LSM command scripts created by the volencap command will execute as the system reboots.
If the AdvFS filesets in domain dom1 are not mounted, then /sbin/volreconfig can be executed on the command line. To encapsulate
the specific partition dsk1g to an LSM volume, enter: # volencap dsk1g # volreconfig
The volreconfig command will determine if the partition is open, and if so, request confirmation prior to rebooting the system. The
LSM command scripts created by the volencap command will be executed as the system reboots.
SEE ALSO
volintro(8)
volencap(8)