incremental dumps
2007-01-22 15:16:54
Hi,
I've been struggling trying to get Amanda to do incremental dumps. It
seems no matter what I try to do Amanda will always do a level 0. I've
looked through the log files and I there aren't any related warnings or
errors that I could see. The tapes I'm using (LTO-3-400) do have the
capacity to store all the level 0 dumps on one tape, however that takes
over 24 hours to finish dumping which prevents me from running nightly
backups. Below are the relevant portions of the config files, if anyone
has seen something similar before or has any ideas, I would greatly
appreciate it.
---
### Amanda config file
org "icl" # your organization name for reports
dumpcycle 28 # the number of days in the normal dump cycle
#runspercycle 20 # the number of amdump runs in dumpcycle days
tapecycle 90 tapes # the number of tapes in rotation
# WARNING: don't use `inf' for tapecycle, it's
broken!
bumpsize 20 Mb # minimum savings (threshold) to bump level 1 -> 2
bumpdays 1 # minimum days at each level
bumpmult 4 # threshold = bumpsize * bumpmult^(level-1)
runtapes 1 # number of tapes to be
used in a single run of amdump
inparallel 10
dumporder "BTBTBTBTBT" # specify the priority order of each
dumper
# s -> smallest size
# S -> biggest size
# t -> smallest time
# T -> biggest time
# b -> smallest bandwitdh
# B -> biggest bandwitdh
# try "BTBTBTBTBTBT" if you are not
holding
# disk constrained
netusage 9000 kbps # maximum net bandwidth for Amanda, in KB
per sec
etimeout 600 # number of seconds per filesystem for
estimates.
dtimeout 3600 # number of idle seconds before a dump is
aborted.
reserve 30 # percent # This means save at least 30% of the
holding disk space for degraded
columnspec
"Disk=1:35,OrigKB=1:12,OutKB=1:12,DumpTime=1:6,DumpRate=1:6,TapeTime=1:6,TapeRate=1:6"
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