topic Re: nfs & big files in Operating System - HP-UX

nfs & big files

Tenon_1 — Tue, 27 Jan 2004 10:12:03 GMT

hi,
a little problem with my backup ...

i would like to backup more than 2 GB with
fbackup on nfs but it seems to stop at 2 GB
#fabckup -f "file on nfs" -g graph
so ... how can i split my backup ? or compact or .. ?

Thanks

Re: nfs & big files

G. Vrijhoeven — Tue, 27 Jan 2004 10:15:33 GMT

Hi,

Do you backup to tape or to disk. For files >2 GB you need to set the largefiles option on on the filesystem. ( fsadm -F xvfs -o largefiles /mountpoint)?

Gideon

Re: nfs & big files

Steven E. Protter — Tue, 27 Jan 2004 10:21:41 GMT

fbackup will back up files bigger than 2 GB.

The problem is you are copying the file on a temporary basis to a filesystem that doesn't have largefiles enabled.

fadm can upgrade a filesystem to largefiles on the fly.

newfs -F vxfs -o largefiles will do it if the fs is unmounted and you don't mind losing the data on it.

For 11.00 you'll need to add the largefiles parameter to the mount statements in /etc/fstab

SEP

Re: nfs & big files

Tenon_1 — Tue, 27 Jan 2004 10:22:43 GMT

it 's on disk :
a linux nfs file system (debian 3.0)
exported on my hpux 10.x and 11.00

but i didn't understand if with your solution i had to do it on the nfs file systeme or with my command fbackup ??

Re: nfs & big files

G. Vrijhoeven — Tue, 27 Jan 2004 10:25:57 GMT

Tenon,

Can you give us the error.
If you use DDS ( dds1) it can only hold 2Gb of data.

Gideon

Re: nfs & big files

Tenon_1 — Tue, 27 Jan 2004 10:37:05 GMT

ok
my problem is from my nfs server
i had to change my nfs version on linux

but is it really impossible to split backup files during my backup ?

Re: nfs & big files

Sundar_7 — Wed, 28 Jan 2004 17:29:41 GMT

Hi,

I was about to tell u.. NFS version 2 cant handle large files (> 2gB). NFS version 3 can.

Thanks,

Sundar

Re: nfs & big files

Elmar P. Kolkman — Thu, 29 Jan 2004 03:53:51 GMT

What you could do is run fbackup to stdout (-f -) and then pipe to a script/command that splits the result in chunks of, for instance, 2 Gb.

For instance:
fbackup -f - | split -b 2048m - bck-$(date +%Y%m%d)

Restore:
cat bck-* | frestore -f -

Re: nfs & big files

T G Manikandan — Thu, 29 Jan 2004 04:04:11 GMT

nfs version 3 should support largefiles

Re: nfs & big files

T G Manikandan — Thu, 29 Jan 2004 04:10:11 GMT

Also make sure that you re-export the file system for the nfs after the file system was enabled largefiles.