Backing up from HPUX box to SUN box

[Henry Chua]

Hi Guys,

I will like to perform a periodical incremental back up from a HPUX10.20b box to a Solaris 8 box. Is the below correct?

for this setting:

Source:
Hostname: host1
path: /users/HOST3
filesystem: hfs

target:
Hostname: host2
path: /home/HOST3_BACKUP
filesystem: ufs

is this command correct?

/usr/sbin/fbackup -i /users/HOST3
-i /home/HOST3_BACKUP -f - |remsh sun_server dd of=/filesystem/hpux.fbackup bs=1024k

can u roughly explain wat each section of this command does and what does different level of incremental backup i.e. fom 0-9 means?

Thank u so much..!!

[Amit Dixit_2 · Accepted solution]

Hi Henry,
The command which you have given is
doing these things step by step

1. fbackup will pickup the directories
which you have specified using -i
option
2. Then it will redirect the backup
to your sun box "-f" comes into
picture.

3. Then remote shell execute the command
and takes the backup to the
destination bs is block size which is
1024 in your case.

Regarding different level of backup
here is my short summary

If an incremental backup is being done at level 4 and the -g option is used, the database file is searched for the most
recent previous backup at levels 0-3. If a file's modification time is before the time when the last appropriate session began and the i-node change time is before the time that same session ended, the file is not backed up. All directories lying on the path to a file that qualifies for the incremental backup will also be on the backup media, even if the directories do not qualify on their own status.

If fbackup is used for incremental
backups, a database of past backups must be kept. fbackup maintains this data in the text filemust be created prior to the first time fbackup is used for incremental backups. The -d option can be used to specify an alternate database file. The user can specify to update this file when an fbackup session completes successfully. Entries for each session are recorded on separate pairs of lines.

NOTE : since you are taking backup to
remote machine I think you have
to use the -n option for NFS mounted
filesystem.

ANYBODY please correct me if I am wrong.

Thanks,
Amit.

[Henry Chua]

I have tried this command:

tester@wtws03[36]_% /usr/sbin/fbackup -i /users/tester/temp -i /HOST3/temp -f - |remsh wtwfbm02 of=/filesystem/hpux.fbackup bs=1024k
fbackup(1601): could not access -i/-e file /HOST3/temp
fbackup(1004): session begins on Mon Dec 20 14:44:45 2004
permission denied.
fbackup(3024): writing volume 1 to the output file -
fbackup(9999): Broken pipe
fbackup(3004): writer aborting
fbackup(1002): Backup did not complete : Reader or Writer process exit

what did i do wrong? anyone?

[Thierry Poels_1]

hi,

the message says it all:
"could not access -i/-e file /HOST3/temp"

and you seem to be missing the "dd" command in you last message (maybe due to copy/paste).

regards,
Thierry Poels.