Onbar recovery failure Resolution of chunk space mismatch problem

1. Problem Description:

On the aix5.3 system platform, there was a problem recovering from the informix11.5 database backup and could not be successful. Specific as follows:

$ onbar-r-p-w

Bar_act.log Displays the following error message as "The chunk '/home/db/informix/fcadbs/logchunk2 ' won't fit in the space specified. errno = 2. "

2. Cause Analysis:

View the aix5.3 system platform architecture as a 32 system.

#prtconf | grep ' Kener '

32

It is determined that because the core of the aix5.3 system is not 64 bits, the recovery is limited by the 32-bit system, and the system-managed database chunk file is more than 2G.

The cause of the problem is that the AIX system is restored using backup tapes, and the 32-bit system is used by default when recovering.

3. Workaround

The aix5.3 system core is switched from 32-bit to 64-bit, with the following steps:

To switch from 32-bit mode to 64-bit mode run the following commands, in the given order:

1). Ln-sf/usr/lib/boot/unix_64/unix

2). Ln-sf/usr/lib/boot/unix_64/usr/lib/boot/unix

3). Bosboot-ad/dev/ipldevice

4). shutdown-fr

5). Bootinfo-k (should now show 64)

Note: The 32-bit system cannot use a 64-bit kernel, the 64-bit system can use 32 of the kernel, it is important to note this. The following commands can be used to see if the system is 32-bit or 64-bit.

This article is from the "All the Way" blog, please be sure to keep this source http://702410.blog.51cto.com/692410/1615915

Onbar recovery failure chunk space mismatch resolution