IBM AIX 5.2 cloning Hdds Post: 302999416

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Operating Systems AIX IBM AIX 5.2 cloning Hdds Post 302999416 by MichaelFelt on Tuesday 20th of June 2017 02:15:33 AM

06-20-2017

Registered User

Hi,

a) AIX 5.2 does not virtualize the same way AIX 5.3 can (no virtual ethernet, no microparititions). The product you needed for that is vWPAR 5.2 - and, as the AIX 5.3 version is rumored to be withdrawn from marketing soon - I am going to guess the vWPAR 5.2 version is already withdrawn.
b) make an mksysb image asap to a file, do not worry about it being bootable or not. Just make sure you have the image.

More to come - my ride has arrived.

So, a day later... continuing as promised.

c) to test your DVD making process - years ago (AIX 5.3 ML05 days) I wrote a short article on how to create a bootable DVD/CD (CD will work in this case) - so that you could then read and install an mksysb file from a second DVD. This was a problem I was having when moving things from some old P43-140 systems to a POWER4. If I recall correctly, the process describes (see http://www.rootvg.net/content/view/134/88/) how a previously captured "mksysb" file can be used as input to the mkDVD process. The mksysb image created was the minimum needed to create a bootable disk.
Largely I gave up on mkDVD as a workable backup method (running the command "live" means you need to have 3X space - the actual system, the temp mksysb file it makes, and then the iso9660 file(s) it creates. One thing I learned to not do is let mkDVD write directly to the DVD (although that is probably not what you have - my POWER4 had a DVD/RAM device, soI could also use the -U option (write as UDF format to the RAM-DVD (special kind of RW-DVD media). (basically, it was so horrendously slow I always wrote to files, transferred them to a PC and burned the DVD on my PC).

So, hoping your system is still alive enough for you to make an mksysb image - I also highly recommend backing up as many non-OS related files (i.e., your real data) in a tar file - so it is easily readable on various platforms.

If you have access to any AIX 5.3 media - this should accept most applications supported on AIX 5.2 - then you could try the process of migrating your applicaitons to AIX 5.3 - and then run that on vWPAR for AIX 5.3.

Hope this helps!

Last edited by MichaelFelt; 06-21-2017 at 07:30 AM.. Reason: promised to continue...

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dvdfs

dvdfs(4)						     Kernel Interfaces Manual							  dvdfs(4)

NAME

       dvdfs - The Digital Versatile Disk File System  [This feature is not supported in Tru64 UNIX Version 5.0]

STANDARDS

       Interfaces documented on this reference page conform to industry standards as follows:

       ISO/ITEC 13346:1995

	      Optical Storage Technology Association (OSTA) Universal Disk Format (UDF) Specification, "OSTA UDF Compliant Domain", Version 2.00.

       ISO 9660:1988

	      Information Processing-Volume and file structure of CD-ROM for information interchange.

       Refer to the standards(5) reference page for more information about industry standards and associated tags.

DESCRIPTION

       The Digital Versatile Disk File System enables the reading of disks formatted in the Universal Disk Format (UDF).

       User  data sectors in a DVD-ROM can contain any type of data in any format.  However, for Tru64 UNIX support through the dvdfs file system,
       the OSTA UDF file format standard is mandatory.	The file system limit for DVDFS is int cfs_cdfs_mount_limit = 512.

       Additionally, DVD-ROM standards require that the logical sector size and the logical block (the user data block) size be 2048 bytes.

       DVD support in the UDF specification includes these levels: DVD-ROM (Read-only):

	      Supports reading of UDF-formated files from DVD-ROM disks.  DVD-R (Write-once):

	      Supports the reading of UDF-formated files from a DVD-ROM disk and supports writing, one time, UDF-formated  files  onto	a  DVD-ROM
	      disk.  DVD-RAM (Rewritable):

	      Supports reading and writing of UDF-formated files from and to a DVD-ROM disk.

       At this time, the Tru64 UNIX dvdfs file system supports only the DVD-ROM (Read-only) format.

       See  mount(8) for information about mounting and unmounting a dvdfs file system, fstab(4) for information about including dvdfs file system
       in a system's /etc/fstab file, and disklabel(8) for information about labeling DVD-ROM disks.

RELATED INFORMATION

       Commands: disklabel(8), mount(8)

       Files: cdfs(4) fstab(4) delim off

																	  dvdfs(4)

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