[SunHELP] Best way to archive ?

[Sreenivasa Rao Vadalasetty]

Bill, thanks for replying.

I mean to backup the entire partition itself.  I am looking for a mechanism
by which :

a)	I archive the complete partition when it gets full and delete the
data 
b)	When the partition gets full again, I want to archive it onto the
same tape to update the previously archived data.
c)	The files under subdirectories are unique  - Hence every time you
update the archive , new set of data should get updated within the same
archive
d)	And, I should finally be able to selectively restore a single file
out of this archive without having to restore the complete saveset.

Sorry to trouble u too much.

Sreenivas.

	-----Original Message-----
	From:	Bill Bradford [SMTP:mrbill at mrbill.net]
	Sent:	Sunday, April 29, 2001 6:49 PM
	To:	sunhelp at sunhelp.org
	Subject:	Re: [SunHELP] Best way to archive ?

	On Sun, Apr 29, 2001 at 04:35:00PM +0530, Sreenivasa Rao Vadalasetty
wrote:
	> I have a disk partition having the following directory structure 
	> /dir/subdir1/*files*
	> /dir/subdir2/*files*
	> I need to archive the above directory structure onto a tape
whenever the
	> partition becomes full.  I mean that I will delete the data on
this
	> partition once it is archived onto tape. When the same parition
with the
	> same directory structure becomes full, I want to update the
previous tape
	> with this latest data on this disk. And in future, I should be
able to
	> selectively restore only one of the files in one of the sub
directories.
	> Please suggest me an efficient way of doing this.  I was thinking
to use
	> ufsdump/ufsrestore or tar... but not clear how to make use of
ufsdump for
	> this purpose. 
	> Please let me know if you need more information to suggest a
better
	> soultion.
	> Sreenivas.

	If its just those subdirectories, you have to use tar, because
	ufsdump is for entire partitions (afaik).

	cd /dir
	tar -cvf /dev/<tapedevice> subdir1 subdir2
	mt -t /dev/<tapedevice> rewoffl

	store the tape 8-)

	You can use -zcvf if you have GNU tar and GNU zip (gzip) installed
	and want to compress the files on the tape.

	Bill

	-- 
	Bill Bradford
	mrbill at mrbill.net
	Austin, TX
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