I am using amanda 3.1.1 on a Sun Solaris 10 x86.
I have been running my daily backups with no problem but, by using
taperflush=100, my daily backups only require one tape and the rest of the data
is kept in the holding disk to be flushed at the next daily backup.
I have just started doing my monthly archive backups, which requires that all
the data be level 0 and be flushed to tape and so my taperflush=0, which means
that amanda has to change tapes during the backup.
Since going to amanda 3.1.1 I am getting the following error message on my
archive backup, which causes my backup to go into degrade mode.
hertz /gauss/export/users-m lev 0 partial taper: Error writing block:
Mysterious short write on tape device: Tried 2097152, got 1052672
hertz /gauss/export/users-y lev 0 FLUSH while ejecting volume: Can't open
tape device /dev/rmt/0cbn: Device busy
Moving to amanda 3.1.1, I have moved to the chg-robot define changer which is
defined as:
tapedev "c4"
define changer "c4" {
tpchanger "chg-robot:/dev/changer/0"
changerfile "chg-zd-mtx-state"
property "tape-device" "0=tape:/dev/rmt/0cbn"
property "eject-before-unload" "yes"
property "eject-delay" "5"
property "use-slots" "31-36"
property "load-poll" "0s poll 3s until 120s"
}
I used the same values in the define changer above that I had in my 2.6.1p2
amanda.conf file, which had no changer problems.
1) I am thinking this might be a changer timing problem. Does this sound
correct or am I way off base?
2) Should the value of "eject-before-unload" equal "yes" or "true" or will
either work?
I am thinking of modifying the define changer to add a little more time.
tapedev "c4"
define changer "c4" {
tpchanger "chg-robot:/dev/changer/0"
changerfile "chg-zd-mtx-state"
property "tape-device" "0=tape:/dev/rmt/0cbn"
property "eject-before-unload" "yes"
property "eject-delay" "10" <<<<<<
property "unload-delay" "10" <<<<<<
property "use-slots" "31-36"
property "load-poll" "0s poll 5s until 120s" <<<<<
}
3) Any other suggestions.
4) I looked through the /tmp/amanda logs and the /var/amanda/archive logs but
could not find any useful information about this error. This does not mean that
it is not their it means that there is some much information that I cannot find
what I am looking for. What log file would give me more information about the
above error, so I can narrow down the log file that I need to search.
Thanks
Robert
_____________________________________________________________________
Robert P. McGraw, Jr.
Manager, Computer System EMAIL: [email protected]
Purdue University ROOM: MATH-807
Department of Mathematics PHONE: (765) 494-6055
150 N. University Street
West Lafayette, IN 47907-2067
