Re: Restoring mksysb on bigger disk

From: ketsak (member44158_at_dbforums.com)
Date: 11/07/03 

Date: Thu, 06 Nov 2003 20:12:04 -0500

Originally posted by ketsak

> Hi all,

> I have RS/6K running 4.2.1 with mirrored ROOTVG on 4.3 GB disks
> (hdisk0 & hdisk1). I want to take a system backup and JUST FOR
> verification purpose wants to restore it on the SAME system (as I
> don't have any spare system), but on DIFFERENT spare hard disks, of
> the size 18 GB each. While restoring I may not be able to power
> down/disable hdisk0 & hdisk1, i.e these two disks would be on line
> with 18GB disks.

>

> I know that before running mksysb I need to edit /image.data file to
> change PP size to 32 MB (currently it is 8 MB for 4.3 GB disks) under
> vg_data stanza. Also I need to verify PROMPT=YES in /bosinst.data
> file. Now my questions are :

>

> 1) Do I need to change PP size to 32 MB under all 'lv_data' stanza in
> /image.data ?

>

> 2) According to new PP size do I need to change FS_SIZE under
> 'fs_data' stanza in /image.data ?

>

> 4) After selecting target disks under Installation & Maintenance menu,
> still is there any possibility that restore process may affect
> existing rootvg on hdisk0 & hdisk1 ?

>

> 5) To avoid probable problem mentioned in Q-4, do I need to edit
> /bosinst.data file to reflect location of the target disks (18 GB
> disks) under 'target_disk_data' stanza ?

>

> 6) Suppose I succeed in restoring mksysb tape on new hard disks, now
> on simply physically removing those disks, will I be able to boot
> from hdisk0 again without any problem ?

>

> 6) Do you see any other potential problem in restoring this way ? Or
> please let me know if I may be missing some steps for successful
> restoration on bigger disks.

>

> Your interest and responses will be highly appreciated..... TIA
>

No responses ????!!!!!! Need some expert advice.......... 

--
KPS
Posted via http://dbforums.com

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