AIX

hi all

im making a script for backing up a specific filesystem that is an output of our DB13(SAP) into tape..which is around 40g +


which is suitable tar or backup command

i heard tar has limitations ..i heard it can only backup upto 2 gig??? is this ryt?

and ill put this into cron.

by the way the o.s is AIX 5.3L

thanks all

Depending on the AIX oslevel you will encounter different file size limits of AIX tar. The 2GB limit exists till about AIX 5.1. Recently you could archive files bigger than the limit officially announced. There are several ways around this file size limitation, e.g. you could use pax which uses tar format but handles bigger files (IIRC up to 8GB) or you could use gnu tar from the AIX Linux Toolbox that hasn't this POSIX limitation build in. However, as you are going to archive database files which could not only be large but also consist of sparse files the only program I'd recommend is AIX backup and restore.

wow nice ... explained very well...that's wht i had in mind..backup (native aix..heheheh)

thanks sir

You may also have to have a look at ulimits and see what size you have for

cd /etc/security
cat limits

look at

default:
fsize =

or also user fsize =

oki sir..if u dont mind me asking what's this commands for?

thanks

The /etc/security/limits file defines process resource limits for users.

fsize
Identifies the soft limit for the largest file a user's process can create or extend.

you can do a man on limits for more detail
File for a user doing backup can not exceed this fsize set for the user in limits file

ah oki sir thanks am cheking this out