[rescue] Block size and the single DD
kevin at mpcf.com
Wed Feb 11 10:12:14 CST 2004
I don't know whether it makes a difference in this scenario or
not, but xfsdump will backup ACLs where as GNU tar will not.
And the days of backing up to tape are still plentiful and
On Wed, 11 Feb 2004 10:52:29 -0500
"Kevin Loch" <kloch at gurunet.net> wrote:
> Sheldon T. Hall wrote:
> > So I've got this Solaris shell script that backs up my SGI
> > machines to the spiffy new DLT tape drive on my
> > SPARCclassic....
> > The heart of the script is this line:
> > rsh $MACHINE xfsdump -l 0 -F - $FS | dd of=$TAPE bs=$BS
> > I run that on the Sun with values like
> > MACHINE=blinky # Indigo2 R4k
> > FS=/dev/root
> > TAPE=/dev/rmt/1cn # DLT 2000xt on Sun SBUS card
> > BS=1024k
> > Now, this works, but it's so slow that the DLT tape
> > shoeshines itself into a lather.
> I thought the days of backing up directly to tape were long
> gone. How about setting up a remote backup server with large
> disks and the dlt? Also, is there anything that xfsdump gives
> you that you wouldn't get from gnu tar?
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