Hi
I've got several disks that are showing weird compression results in the
amanda report. Here's one of them:
DUMPER STATS TAPER STATS
HOSTNAME DISK L ORIG-KB OUT-KB COMP% MMM:SS KB/s MMM:SS KB/s
------------------------------------ ------------------------------------------
---------------
host /disk 1 2031690 4063380 200.0 36:34 1852.3
6:27 10487.2
Note the ORIG-KB blows out to twice the size! COMP% is 200.0...
This happens on more that one disk actually. I chose this disk as it's
the biggest disk that I dump, it shows the most expansive blowout and I
noticed it first. This disk uses 'compress NONE' (dumptype is
nocomp-root). Some of the other disks showing compression weirdness are
using 'compress client fast' in their DLE's.
Just so you know, I'm using file tapes for this backup. The size on disk is:
-rw------- 1 amanda disk 4160933888 Jan 21 22:53 00018.host._disk.1
The server is amanda 2.6.0p2 and the client is amanda 2.4.4p3-1. There
are a few more details below that may help. I'm not sure what's
happening but do appreciate any help regarding the strange results.
Thanks in advance,
Tom
amadmin conf disklist shows:
host host:
interface default
disk /disk:
program "DUMP"
priority 0
dumpcycle 7
maxdumps 1
maxpromoteday 10000
bumppercent 20
bumpdays 1
bumpmult 4.000000
strategy STANDARD
ignore NO
estimate CLIENT
compress NONE
encrypt NONE
auth BSD
kencrypt NO
amandad_path X
client_username X
ssh_keys X
holdingdisk AUTO
record YES
index YES
starttime 0000
fallback_splitsize 10Mb
skip-incr NO
skip-full NO
spindle -1
the log entries for that disk are:
SUCCESS dumper host /disk 20090121214501 1 [sec 2193.730 kb 4063380 kps
1852.3 orig-kb 2031690]
SUCCESS chunker host /disk 20090121214501 1 [sec 2193.762 kb 4063380 kps
1852.3]
STATS driver estimate host /disk 20090121214501 1 [sec 2090 nkb 4064493
ckb 4064512 kps 1945]
PART taper conf 18 host /disk 20090121214501 1/1 1 [sec 387.462180 kb
4063380 kps 10487.165483]
DONE taper host /disk 20090121214501 1 1 [sec 387.462180 kb 4063380 kps
10487.165483]
--
Tom Robinson
System Administrator
MoTeC
121 Merrindale Drive
Croydon South
3136 Victoria
Australia
T: +61 3 9761 5050
F: +61 3 9761 5051
M: +61 4 3268 7026
E: tom.robinson AT motec.com DOT au
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