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need small information iun ufsdump

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Operating Systems Solaris need small information iun ufsdump
# 1  
Old 07-17-2009
need small information iun ufsdump
Dears,
I have two question about using ufsdump
1) i read in all documents that the first recommended thing before using the ufsdump
umount file system
i don't how to umount the file system?
if my server work for 24 in 7 how to take backup is this case
2) if i want to make accumulative backup how can i do this in UNIX?

thanks in advance
Last edited by hosney00ux; 07-17-2009 at 09:10 PM..
# 2  
Old 07-18-2009
Hi hosney00ux ,
why not Smilie) of course it's safe when u unmount ,or at least there is no activity on
source drive. otherwise you can do it even without any warnings Smilie)
but dont forget that files which are open in backup time are not included ..
if its ok for your environment go straight on it Smilie)))

Good luck
# 3  
Old 07-19-2009
thanks samar for your reply
but i still also don't know how to umount the file system
# 4  
Old 07-19-2009
Code:
# umount /moutpoint

thats all... but note, you can not unmount your systems mountpoints (like /usr) only mountpoints with data not needed by the system!
# 5  
Old 07-19-2009
Use ufsdump on a snapshot of your filesystems. Snapshots are read-only so there is no need to unmount them.

Backing Up a UFS Snapshot (System Administration Guide: Devices and File Systems) - Sun Microsystems
# 6  
Old 07-19-2009
Quote:
Originally Posted by hosney00ux
thanks samar for your reply
but i still also don't know how to umount the file system
why you need to umount it? besides, you said your server works 24/7 service Smilie))

Quote:
Originally Posted by jlliagre
Use ufsdump on a snapshot of your filesystems. Snapshots are read-only so there is no need to unmount them.

Backing Up a UFS Snapshot (System Administration Guide: Devices and File Systems) - Sun Microsystems
Guys you can do it without any snapshots... why you re wasting time when your getting the same result without snapshots Smilie))
# 7  
Old 07-19-2009
Quote:
Originally Posted by samar
Guys you can do it without any snapshots...
If you like taking risks, yes.
Quote:
why you re wasting time when your getting the same result without snapshots Smilie))
Not the same result. A backup made of a mounted and read-write filesystem might be worthless.
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