Tar file size

[Andrew Kaplan]

Hi there --

I am using a script that creates a tar file, subsequently encrypts the file, and then uses the dd command to copy to tape. The version of tar that is in use is GNU tar 1.19 release. The operating system is the HP-UX 11.11 distribution.

Correct me if I am wrong, but the two gigabyte limit for tar files is no longer a factor with version 1.15 and above of GNU tar. If it is still a factor, what version, if any, of GNU tar can create tar files greater than two gigabytes? Thanks.

[T G Manikandan]

Please check this patch please
PHCO_36587

http://www11.itrc.hp.com/service/patch/patchDetail.do?patchid=PHCO_36587&sel={hpux:11.11,}&BC=main|search|

looks like fixes files upto 8Gb

[T G Manikandan]

Yes , GNU tar version 1.15 can support files > 2G

[T G Manikandan]

the support for large files was fixed with 1.13 version , check

http://cvs.savannah.gnu.org/viewvc/tar/tar/NEWS?view=markup&content-type=text%2Fvnd.viewcvs-markup&revision=1.95

[Andrew Kaplan]

Hi there --

Thanks for everyone's reply. I am running the script now, and I noticed that when I run the du -ks command on the encrypted tar file, the size of the file is at two gigabytes. This is the read out that I have been seeing for at least half an hour even though the time to create the file that eventually grew to that size was less than that.

I am concerned that the file is not breaking the two gigabyte size limit. Does anyone have any ideas on this?

[Michael Mike Reaser]

Allow me to ask the possibly stupid question of "Are you sure that the file system, on which the tar file is being created, is enabled for large files?"

[Patrick Wallek]

Does the filesystem that you are writing this file to allow for files larger than 2GB?

[Andrew Kaplan]

Hi there --

I checked /etc/fstab file, and listed below is an excerpt which pertains to the filesystem in question:

/dev/vg109/lvol1 /scratch1 vxfs delaylog,datainlog,largefiles 0 0

However, when I go into SAM and check the attributes for the filesystem, the allow large files setting is no.

I am going to correct the discrepancy, and try again. Thanks for the help.

[James R. Ferguson]

Hi Andrew:

THe value for '(no)largefiles' in '/etc/fstab' are for mount time protection only. What matters is the underlying filesystem. Check it with:

# mkfs -m /dev/vgNN/lvolX

Regards!

...JRF...

[Andrew Kaplan]

Hi there --

The mkfs commmand confirmed the filesystem in question has the nolargefiles flag assigned to it.

One followup question: Can the filesystem be reconfigured to allow largefiles?