Amanda-Users

RE: Help getting tape changer to work on Solaris 2.8

2003-02-26 06:21:28
Subject: RE: Help getting tape changer to work on Solaris 2.8
From: "Nigel Barker" <nigelb AT muscat DOT com>
To: "Amanda-Users" <amanda-users AT amanda DOT org>
Date: Wed, 26 Feb 2003 09:54:00 -0000
Jon

Thanks for the reply.
I'm embarrassed that I missed so much essential info out of my initial email
:(
(I work in support, I should have known better)

>Thought 1, its good to specify which amanda version you are using.

build: VERSION="Amanda-2.4.3"

>Thought 2. you did not say if you had a changer, make, model, /dev entry.
If not, you needn't use any changer entries

Overland XB with a DLT700 drive.
dlt     /dev/rmt/1n (I've had the tape respond to this, so i know its right)
changer /dev/sq/c3t610 (created using Veritas stuff, I can't vouch for it)

>Thought 3. you have changerfile set to chg-multi.  that would suggest your
tpchanger should also be chg-multi

Done that, now "playing" with the chg-multi.conf file

>Thought 4. for my Solaris system and drive chg-mtx worked fine.  others
have used chg-zd-mtx (note you will have to obtain and install mtx).  Still
others have configured the "sgen" (generic scsi?) driver and used chg-scsi,
or the chg-mtx's

I explored mtx and sgen, and was unable to get either to create a device for
me.

>Thought 5. /dev/rmt/1n ?  Do you have another tape drive at 0?

/dev/rmt/1n responds as the tape drive, but I don't have anything I can get
to respond at /dev/rmt/0n, even though all the files are there in /dev/rmt/
Is this something I should investigate, or can I ignore them?

>Thought 6. the device /dev/rmt/1n is choosing the "default" density and/or
compression for your tape drive.
If that is what you want, fine, otherwise check into 1ln, 1mn, ...

Ah, wondered what they all were!
I'll investigate, thanks for the "heads up"

Cheers

Nige

> Here's the current error :-
>
> $amtape Daily reset
> amtape: no tpchanger specified in
"/usr/local/etc/amanda/Daily/amanda.conf"
> $
>
> Here is the relevant section of the amanda.conf file :-
>
> #runtapes 1                        # number of tapes to be used in a
single
> run of amdump
> #tpchanger "chg-manual"            # the tape-changer glue script
> tapedev "/dev/rmt/1n"                # the no-rewind tape device to be
used
> #rawtapedev "/dev/null"            # the raw device to be used (ftape
only)
> changerfile "/usr/local/share/amanda/Daily/chg-multi.conf"
> #changerfile "/usr/adm/amanda/DailySet1/changer-status"
> #changerfile "/usr/local/etc/amanda/DailySet1/changer.conf"
> #changerdev "/dev/null"
>
> Assuming that I need to uncomment the tpchanger line, what should I point
it
> at?
> Am I right customising and using chg-multi.conf?
>
> Any thoughts/guidance appreciated.




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