Amanda-Users

Resuming amanda after 2 week hiatius due to upgrading to F10.

2009-03-07 00:20:55
Subject: Resuming amanda after 2 week hiatius due to upgrading to F10.
From: Gene Heskett <gene.heskett AT verizon DOT net>
To: amanda-users AT amanda DOT org
Date: Sat, 07 Mar 2009 00:08:33 -0500
Greetings;

I managed to destroy X somehow, and since I was running F8, it was time to 
update to F10, so I did, but turned amanda off till things settled a bit and 
some of the 'infant mortality' associated with an upgrade were sorted
I am about to restart my backup scheme, and was wondering if I should just 
restore the line in amanda's crontab after I change the disk size in 
amanda.conf to something on the order of 80GB so it will get all 80 some GB of 
data in one pass, or should I leave it set at its present 15GB and pre run my 
chatchup script which will run a backup an arbitrary number of times, then 
enable the crontab entry once that has finished and a sort of schedule 
established.

Since I now have a 1TB disk for amanda to play in,, I'm inclined to try the 
one pass gets it all, then reduce the disk size setting to something more 
reasonable after the actual size settles some.

This new disk is faster:
===============
[root@coyote amanda-2.6.2alpha-20090227]# hdparm -tT /dev/sdc
/dev/sdc:
 Timing cached reads:   4916 MB in  2.00 seconds = 2458.87 MB/sec
 Timing buffered disk reads:  332 MB in  3.01 seconds = 110.21 MB/sec
===============
than the /dumps disk is but not by much.  What would be the effect of de-
specing the holding disk and let it write directly to this bigger disk?

And I just built the 0227 version of 262alpha and ran amccheck of course, and 
I'll make a comment re speed:  2 years ago, amcheck usually completed in some 
random period averaging about .9 seconds.  As 262 has progressed, that is 
getting slower, TBE its about 2.4 seconds now, and the machine is about 4-5x 
faster now cuz its a 2.2Ghz AMD 9550 Quad core, with 4Gb of 800 mhz ram to 
play in, where 2 years ago it was an XP-2800 single core running at 1.6GHZ 
actual, with only a gig of 333mhz ram.

That seems like its going backwards to me.
 
Comments anyone?
 
Thanks.

--
Cheers, Gene
"There are four boxes to be used in defense of liberty:
 soap, ballot, jury, and ammo. Please use in that order."
-Ed Howdershelt (Author)
The human race never solves any of its problems.  It merely outlives them.
                -- David Gerrold