Must restore data to DR server Post: 302258106

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Operating Systems AIX Must restore data to DR server Post 302258106 by pobman on Thursday 13th of November 2008 10:51:00 PM

11-13-2008

Registered User

Must restore data to DR server

Hello,

I have posted several threads regarding my voyage of discovery with mksysb's and AIX, but seem to be at a loss now please help me.

I need to restore data from a mksysb to a DR server.
Problem is the DR server only has 2 disks not 4 and no mirrors.

I need to restore AIX 5.2 to the server, I have tried booting from the tape but it hangs before the install text appears,

I have tried to use the sms, the cd and the tape and got no where.
I have tried using wsm and now my latest is cloning the hdisk1 to hdisk0.

Then trying to restore the files from the tape to the new cloned partition, again this is not working, as I ma unaware of how to mount a lv hdisk0 mount point to my hdisk1 /. I was going to use the restore command and extract the directories over the top of each mount point one by one.

Any ideas would be great as I am really stuck, I am a AIX newbie so if you can spell it out it would be great.

I should mention the main error I get using mksysb is

Quote:

# alt_disk_install -i '/var/adm/ras/image.data' -d /dev/rmt0 hdisk0
Restoring /image.data from mksysb image.
Checking disk sizes.
Creating cloned rootvg volume group and associated logical volumes.
0505-102 alt_disk_install: mkvg has returned an error.
0516-1208 mkvg: Warning, The Physical Partition Size of 4 requires the
creation of 35003 partitions for hdisk0. The system limitation is 16256
physical partitions per disk at a factor value of 16. Specify a larger
Physical Partition Size or a larger factor value in order create a
volume group on this disk.
0516-862 mkvg: Unable to create volume group.
Cleaning up.

I was trying to use the existing image.data file not the one on the disk, also I do not have access to a floppy so that way is out as well.

Any Ideas???

Last edited by pobman; 11-16-2008 at 03:44 PM..

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LEARN ABOUT OSF1

volrootmir

volrootmir(8)						      System Manager's Manual						     volrootmir(8)

NAME

       volrootmir - Mirror areas necessary for booting to a new disk

SYNOPSIS

       /usr/sbin/volrootmir [-a] [nconfig=count] target_disk [swap=target_partition]

OPTIONS

       Specifies that all volumes on the system disk be mirrored, not just the root and swap volumes, rootvol and swapvol.

DESCRIPTION

       The volrootmir script causes a mirror copy of areas of the root disk involved in booting to be made on the specified target disk.

       When  used without the -a option, volrootmir adds mirrors of the root and swap volumes and allocates them on the new disk. In addition, all
       disk regions required for booting are set up and partitions for the new volume mirrors are created.

       When used with the -a option, volrootmir mirrors all in-use partitions on the system disk.

       To mirror a swap volume that is on a separate disk from the root volume, the swap attribute must be used to specify a separate  target  for
       the swap mirror.

       The  target  disk(s)  must be at least as large as the sum of the sizes of rootvol and swapvol. Also, the physical disk should not have any
       disk partition in use.

       This script can be called from the voldiskadm menus by choosing the Mirror volumes on a disk operation.

ATTRIBUTES

       Specifies the number of log copies and copies of the configuration database, for example,  nconfig=2.   Specifies  that	the  swap  volume,
       swapvol, be mirrored on a separate disk, as specified by target_partition.

EXAMPLES

       The following command mirrors the rootvol and swapvol volumes onto the target disk, dsk3. This command will fail if swapvol is on a differ-
       ent disk from rootvol.

	      # volrootmir dsk3 The following command mirrors rootvol, swapvol, and any other volumes on the root disk onto the target disk, dsk3.
	      This command will fail if swapvol is on a different disk from rootvol.

	      #  volrootmir -a dsk3 The following command mirrors rootvol on disk dsk3, swapvol onto partition dsk7d, and any other volumes on the
	      root disk onto disk dsk3. This command will fail if swapvol is on the same disk as rootvol.

	      # volrootmir -a dsk3 swap=dsk7d The following command mirrors rootvol onto disk dsk3 and swapvol onto partition dsk7d. This  command
	      will fail if swapvol is on the same disk as rootvol.

	      # volrootmir dsk3 swap=dsk7d

SEE ALSO

       volintro(8), voldiskadm(8)

																     volrootmir(8)