Hello,
I am seeing negative numbers in my amanda stats after a dump. I have
faith the backup is occuring. It looks like when the backup size is
small enough, or occurs quickly enough, the numbers calculated for
dumper-times, or taper-times (and their associated rates) turn out
negative. I have compared the values in my amreport to those in the
amdump and log files: they match (with some rounding errors).
I can think of two reasons this might be: 1) cumulative rounding errors
2) the result of write caching on the part of the disk and/or tape
drivers and electronics.
I am not alarmed by this, but wanted to tell you all about it in case it's a
bug.
I am using a dual processor linux system as the amanda server with a
quantum DLT8000 tape drive (part of a quantum/atl tape changer), and two
ide drives (7200 rpm) using linux software "raid" in linear mode for my
holding space. This server is running amanda-2.4.4p2.
I will include some of the stats lines here:
For what it's worth, all of the machines listed below are redhat9 except for
the following:
weed, crater: solaris8
fanno: solaris7
methane: solaris2.5.1
All client machines are running amanda-2.4.4p2
DUMP SUMMARY:
DUMPER STATS
TAPER STATS
HOSTNAME DISK L ORIG-KB OUT-KB COMP% MMM:SS KB/s
MMM:SS KB/s
--------------------------------------- ---------------------------------------
-------------
bayou / 1 310 310 -- 0:06 50.4
0:01 338.6
bayou /bayou1 1 390 390 -- 0:13 29.6
0:-2 -366.6
bespin / 1 870 870 -- 0:02 555.9
0:-3 -382.8
brine /boot 1 20 20 -- 0:00 186.6
0:-3 -5.5
brine /brine1 1 390 390 -- 0:15 26.1
0:-2 -145.5
cattail / 1 1140 1140 -- 0:00
85869.2 0:-3 -322.8
cattail /var 1 8150 8150 -- 0:11 739.6
0:-2 -5498.4
crater /crater1 1 128 128 -- 0:09 14.2
0:-3 -55.3
cricket /cricket1 1 390 390 -- 0:42 9.2
0:-1 -237.5
cricket /var 1 4630 4630 -- 0:04 1098.2
0:-2 -1618.8
critter hda1 1 10 10 -- 0:00 40.0
0:-4 -2.9
critter hda5 1 11290 11290 -- 0:20 554.3
0:-2 -7822.3
fanno /fanno1 1 21850 21850 -- 0:32 677.8
0:-1 -300339.5
fanno /fanno1/releases 1 10540 10540 -- 2:59 59.0
0:-1 -6833.1
lily / 1 400 400 -- 0:-2 -336.4
0:-1 -29099.4
lily /boot 1 20 20 -- 0:01 28.0
0:-2 -16.8
lily /lily1 1 240 240 -- 0:32 7.4
0:-4 -70.3
methane c0t0d0s3 1 32 32 -- 0:00 -49.5
0:08 3.9
methane c0t0d0s6 1 32 32 -- 0:07 4.3
0:-2 -23.6
weed /weed1/images 1 470 470 -- 0:01 854.6
0:-2 -462.8
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
Jason Brooks ~ (503) 641-3440 x1861
Direct ~ (503) 924-1861
Email to: jason.brooks AT windriver DOT com
Twiki: http://twiki.wrs.com/do/view/Main/JasonBrooks
Senior Systems Administration Analyst
Wind River Systems
8905 SW Nimbus ~ Suite 255
Beaverton, Or 97008
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