topic Re: Tar command.. more queries in Operating System - HP-UX

Tar command.. more queries

Henry Chua — Thu, 07 Oct 2004 04:56:41 GMT

Hi Guys,

Just to check.. is there a limited size in which tar command can be used to back up?

THank you for your kind advise!

Re: Tar command.. more queries

Ravi_8 — Thu, 07 Oct 2004 05:02:32 GMT

Hi

Normal tar would support upto 2GB. for larger file backup gnu tar is the better tool

Re: Tar command.. more queries

Ravi_8 — Thu, 07 Oct 2004 05:04:08 GMT

http://hpux.connect.org.uk/hppd/hpux/Gnu/tar-1.14/

Re: Tar command.. more queries

Fred Ruffet — Thu, 07 Oct 2004 05:07:20 GMT

Even with GNU tar, you may have problems with files larger than 2GB as long as it depends on fstat lib. If you have the problem with GNU tar, use a pipe as input for tar (no call to fstat).

Regards,

Fred

Re: Tar command.. more queries

Bharat Katkar — Thu, 07 Oct 2004 05:07:43 GMT

Yes,
TAR doesn't support largefiles i.e. beyond 2 GB.

For that you either go with gnu version or use fbackup.

Regards,

Re: Tar command.. more queries

Sheriff Andy — Fri, 08 Oct 2004 17:53:11 GMT

With patch PHCO_29229, its enhancement says that it can make tar backup files up to 8GB.

http://www2.itrc.hp.com/service/patch/patchDetail.do?BC=patch.breadcrumb.main|patch.breadcrumb.search|&patchid=PHCO_29229&context=hpux:800:11:00#Enhancement:

Re: Tar command.. more queries

A. Clay Stephenson — Fri, 08 Oct 2004 20:27:24 GMT

If this is an HP-UX to HP-UX backup then you will be better advised to use fbackup/frecover. These utilities will handle files larger than 8GB BUT they are not portable beyond HP-UX. Gnu tar is probably your least evil option if you must cross platform boundaries. In the worst case you can use split (or bsplit) to divide files into 8GB or less chunks and then cat them back together.