Sync two mount points in the same system

[Srinikalyan]

Hi,

HP-UX 11iv2
I am looking for a solution to keep two mount points in the same system in sync with each other.
My actual requirement is I need to move one mount point (1TB) to another volume group (for backup purpose)but without an outage (lot of updates happening currently)on the current mount point. After some point in time we will have a minimum outage and use the new MP.
Is it possible by any best method?

Note: I am not looking for BCV solution here.

Thanks,
Srini

[smatador]

Hi,
A solution is to use rsync
http://hpux.connect.org.uk/hppd/hpux/Networking/Admin/rsync-3.0.6/
Hope it helps

[Michal Kapalka (mikap)]

hi,

if the mount points are based on LVM and are mirrode on LVM, you could split the mirror and mount it under other mount points, and sync.

check this thread :

http://forums11.itrc.hp.com/service/forums/questionanswer.do?admit=109447626+1256716597384+28353475&threadId=223050


mikap

[Kapil Jha]

I too think mirroring at LV level is better than rsync.
And whwnever you want split the mirror and mount it on other VG simple :)

BR,
Kapil+

[James R. Ferguson]

Hi Srini:

Have you considered using a JFS snapshot for backup? See:

http://docs.hp.com/en/5992-4616/ch03s04.html#bajcggcd

Regards!

...JRF...

[Steven E. Protter]

Shalom Srini,

Online JFS, described above has a command for splitting a file system and freezing it for update.

This product costs money.

Best method is the one that works for you.

rsync will not work for databases. It will work well for incidvidual files.

mirror/ux also costs and takes time to rebuild mirrors after a split.

SEP

[Srinikalyan]

I hope this rsync command will be run on different times where the updated changed done on source directory will be copied to dest directory and it will not be replicated continuosly. Am I correct?

Thanks,
Srini