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тАО08-30-2006 01:59 AM
тАО08-30-2006 01:59 AM
GNU cpio 2.6 does not write files larger than 2 GB (>2GB)
A nice message triggered us and we found an alternative in GNU cpio 2.6 which "should" support larger files.
Using the 11.00 version from http://www.hpux.ws/merijn/downloads.html the messages were gone and everything seemed ok.
Now we need to restore the big file and the only thing we get is a correct directory entry (owner, timestamp) but the file is 0 bytes !!
Investigation showed that only the header was written to the cpio file but not the data.
Tests with only this file seem to confirm that a unrestorable cpio file is created without any warning messages.
Looks like I am not happy.....
Regards,
Andre
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тАО08-30-2006 02:13 AM
тАО08-30-2006 02:13 AM
Re: GNU cpio 2.6 does not write files larger than 2 GB (>2GB)
I know gnu tar goes up to 8 GB.
HP has patched their version of tar to go to 8 GB as well.
I mean your file is useless but check the patch database and see if HP has a patch for cpio.
http://itrc.hp.com
Patch and firmware link
click hpux
cpio 8
Should get you down to a single patch for your OS.
There may be a bug in Merijn's version. When he gets back from holiday we'll let him know.
SEP
Owner of ISN Corporation
http://isnamerica.com
http://hpuxconsulting.com
Sponsor: http://hpux.ws
Twitter: http://twitter.com/hpuxlinux
Founder http://newdatacloud.com
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тАО08-30-2006 02:54 AM
тАО08-30-2006 02:54 AM
Re: GNU cpio 2.6 does not write files larger than 2 GB (>2GB)
I already looked for the patch because you mentioned it in
http://forums1.itrc.hp.com/service/forums/questionanswer.do?threadId=1019693&admit=-682735245+1156932354438+28353475
:-)
but I have not been able to find it.
:-(
Even a generic search for only "cpio" returns
PHCO_24168, PHCO_25641, PHCO_25418
but none of them mention >2GB
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тАО08-30-2006 03:36 AM
тАО08-30-2006 03:36 AM
Re: GNU cpio 2.6 does not write files larger than 2 GB (>2GB)
# fsadm -F vxfs /var
largefiles
I don't think this is your issue, as I though at least it would grow to 2 gigs then stop. That maybe different with cpio.
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тАО08-30-2006 03:49 AM
тАО08-30-2006 03:49 AM
Re: GNU cpio 2.6 does not write files larger than 2 GB (>2GB)
Yes, that way my HURRAY moment but unfortunately that was not the case.
There is an attachment with this issue to show the diffent cases.
Regards,
Andre
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тАО08-30-2006 04:13 AM
тАО08-30-2006 04:13 AM
Re: GNU cpio 2.6 does not write files larger than 2 GB (>2GB)
The answer is to use fbackup which is not only much faster than any of the classic tools but has no limits on file sizes (handles anything the OS supports). fbackup also has numerous reliability features as well as hooks to support tape changers. fbackup is proprietary to HP-UX so as a data interchange tool, it will not work. But using a non-standard tar won't work either until the sender and the receiver have compatible versions. And still you'll have limitations.
Bill Hassell, sysadmin
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тАО08-30-2006 04:22 AM
тАО08-30-2006 04:22 AM
Re: GNU cpio 2.6 does not write files larger than 2 GB (>2GB)
Error recovery of tar and cpio backups is tenuous at best so if this were me I would look at a more robust backup solution like Data Protector. DP allows you to completely automate the backup process and the "point-and-click" restores are hard to beat.
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тАО08-30-2006 04:30 AM
тАО08-30-2006 04:30 AM
Re: GNU cpio 2.6 does not write files larger than 2 GB (>2GB)
Unfortunately this is not a good time to talk to our customer about replacing it with a newer product.
If we still have this customer.....
Regards,
Andre