Hello,
I wonder if anyone can shed some lights on this. I am using automounter to mount a few file systems from a Suse 9.3 to a Red Hat 5.3 box. I then use tar to perform full and incremental backups, but the incrementals always turn out to be full backups. Below are the details. I shall be grateful if someone can tell me what I have missed out to cause this. File system: /misc/solar_sohos1 [r...@newsolar tmp]# ls /misc/solar_sohos1 cds config eofcs mirror quota.group quota.user scripts SOHO solarsoft tmp xrp Y2K [r...@newsolar tmp]# df -h /misc/solar_sohos1 Filesystem Size Used Avail Use% Mounted on solar:/sohos1 31G 16G 15G 52% /misc/solar_sohos1 [r...@newsolar tmp]# ls -ls /misc/solar_sohos1 total 41 0 drwxr-xr-x 5 master cds 160 Apr 25 1997 cds 0 drwxr-xr-x 14 master EGSE_GRP 400 Sep 12 1997 config 0 drwxr-xr-x 4 master cds 232 Jul 21 2009 eofcs 1 drwx------ 8 master EGSE_GRP 1040 Jul 3 1997 mirror 8 -rw-r----- 1 root games 8192 Dec 14 1999 quota.group 32 -rw-r----- 1 root games 32768 Dec 17 1999 quota.user 0 drwxr-xr-x 2 root root 48 Apr 6 1995 scripts 0 drwxr-xr-x 11 master EGSE_GRP 384 Apr 25 1997 SOHO 0 drwxr-xr-x 4 master cds 96 May 8 1997 solarsoft 0 drwxr-xr-x 2 master EGSE_GRP 48 Apr 22 2004 tmp 0 drwxr-xr-x 2 286 115 48 Jan 12 1995 xrp 0 drwxr-xr-x 5 master EGSE_GRP 184 Mar 14 2000 Y2K Basically no recent change in the file system. I used this command to backup the file system to tape: tar --one-file-system -g /csupport/backup/solar-solar_sohos1.snar -cpvf /dev/nst1 -b 1024 --no-check-device --directory /misc/solar_sohos1 . But repeating the command will backup a full 16GB of data to tape again. I did try to change the destination to disk under /tmp, but get the same result. tar --one-file-system -g /csupport/backup/solar-solar_sohos1.snar -cpvf /tmp/sohos1/sohos1.tar -b 1024 --no-check-device --directory /misc/solar_sohos1 . [r...@newsolar tmp]# less solar-solar_sohos1.snar "solar-solar_sohos1.snar" may be a binary file. See it anyway? GNU tar-1.23-2 12828972...@592454081^@0...@887476922^@0...@24^@360...@./eofcs/lrg_data/plan ^...@dcif^@di...@^@^...@0^@86 55084...@0^@2...@2766^@./cds/data/chianti_1.01/ion...@yarnaud_raymond.ion e...@yarnaud_rothenflug.i Any idea what is happening here? Regards, Peter Chiu STFC Rutherford Appleton Laboratory Space Science & Technology Department Building R25, Room 2.02 Chilton Didcot OXON OX11 0QX Phone: 01235-446699 Fax: 01235-445848 Email: [email protected] -- Scanned by iCritical.
