Hi,

Gene Heskett wrote:

On Wednesday 16 July 2003 04:01, Christoph Scheeder wrote:

Hi,
1.) i hope you only have one of the lines (A) and (B) in your
amanda.conf at the same time, don't you?
2.) line (A) is the correct one for chg-scsi
3.) remove each and every comment from your chg-scsi.conf file, they
sometimes confuse chg-scsi.
hope it helps....
Christoph

Item 3.) above is something I've never had to do here. If there ever was a problem, its long since scrolled out of my wet ram history. Currently running release 2.4.4p1-20030715.

i had problems with comments in it, and none without them.....
Christoph

Bruntel, Mitchell L, SOLCM wrote:

thanks Jay,  makes great sense.
so the tpchanger envirornment is attemping to call the C program in
the libexec directory

NOW my only problem IS:   tpchanger should call the C program
(chg-scsi) in my case... where does the CONFIG (chg-scsi.conf) get
called from, or it doesnt need to be?

so this error(s)
Amanda Tape Server Host Check
-----------------------------
(1)amcheck-server: could not get changer info: could not read
result from "/usr/local/etc/amanda/DailyBackup/chg-scsi.conf"

or now:
(2)amcheck-server: could not get changer info: check your config
and use a config file for chg-scsi ..amanda.conf snippet:
..snip..
notes:  IF THIS line (A) is commented/# out, I get errror 1
(otherwise I get error B
(A) tpchanger "chg-scsi"
# the tape-changer glue script
(B) tpchanger "/usr/local/etc/amanda/DailyBackup/chg-scsi.conf"
tapedev "/dev/rmt/0n"   # the no-rewind tape device to be used
changerfile "/usr/local/etc/amanda/DailyBackup/chg-scsi.conf"
changerdev  "/dev/scsi/changer/c1t0d0"


-----Original Message-----

From: Jay Lessert [mailto:jayl AT accelerant DOT net]

Sent: Tuesday, July 15, 2003 3:52 PM
To: Bruntel, Mitchell L, SOLCM
Cc: amanda-users AT amanda DOT org
Subject: Re: Pre-emptive sanity check Question

On Tue, Jul 15, 2003 at 01:58:20PM -0500, Bruntel, Mitchell L, SOLCM

wrote:

OK.  Jay makes sense here:
1) Jay says: I have choices:  chg-scsi or chg-zd-mtx.
but I have a third config file in the distribution called
chg-scsi-solaris.conf

The files: example/chg-scsi-{hpux,linux,solaris}.conf are just
example chg-scsi config files with OS-specific "typical" device
names inserted; they do not represent different tpchanger
executables.  You'll not find libexec/chg-scsi-solaris, right?

The X80 has 80 slots for tapes. (elements)   Tape Drive 1 is
element 451, 2 is 452, 3 is 453,

I'm sure there is an excellent and highly amusing reason for that. :-)

and the cleaning cartridge lives in slot 0

and element 401-405 are the only way to put tapes in/out of unit!

You're apparently intended to initially populate the library
through the little five-tape import/export hole, and then
seldom/never touch the tapes again.  Unless you were planning on
rotating tapes off-site, that's actually a perfectly good way to
go, I guess.

Amanda won't do anything with the import/export slots, you'll deal
with that outside amanda somewhere.

With mtx, you would fill the import/export slots, then have a
script do something like:

  mtx transfer 401 1
  mtx transfer 402 2
  mtx transfer 403 3
  mtx transfer 404 4
  mtx transfer 405 5

so it should be 'startuse 1', 'enduse 80'

If you're planning on using that many tapes, yes.  Only specify as
many slots as you're actually intending to use in this amanda
config.

Now can someone explain the following:
a) what is the relationship of mtx to chg-scsi

None.

chg-scsi: is a C program that controls a SCSI tape library and
directly implements the amanda changer interface described in
  docs/TAPE.CHANGERS.  Part of the amanda source distribution.

mtx: A C program that controls a SCSI tape library and does NOT
  directly implement the amanda changer interface.  It is very
useful to use by hand, however ('mtx load 3 452' would load the
tape in slot 3 to tape drive 452), and a wrapper script can
convert it to amanda.  Source from http://mtx.badtux.net/.

  There is another, older mtx, which I have never seen in the
wild.

chg-zd-mtx: A sh script wrapper around mtx which converts it to the
  amanda changer interface.

b) what is the relationship of chg-scsi.conf and the files in the
 /usr/local/libexec directory (/usr/local/libexec/chg-scsi)

libexec/chg-scsi is a C program that expects to find a
configuration file somewhere.  chg-scsi.conf might be that file.