Amanda-Users

RE: Using no-reuse with vtapes

2006-11-20 15:50:21
Subject: RE: Using no-reuse with vtapes
From: "Gordon J. Mills III" <Gordon.Mills AT usa DOT net>
To: "'Jean-Louis Martineau'" <martineau AT zmanda DOT com>
Date: Mon, 20 Nov 2006 14:40:46 -0600
Thanks Jean-Louis. I will try the patch. 

-----Original Message-----
From: Jean-Louis Martineau [mailto:martineau AT zmanda DOT com] 
Sent: Monday, November 20, 2006 1:03 PM
To: Gordon.Mills AT usa DOT net
Cc: amanda-users AT amanda DOT org
Subject: Re: Using no-reuse with vtapes


Changing tapecycle will not fix your problem because the chg-disk changer
script use it to set it's LASTSLOT.

The use of chg-disk with 'no-reuse' is incompatible, but it could be easily
fix (attached patch):
  - chg-disk must set its LASTSLOT from a changer configuration file.

After that, you will have 2 possibilities:
   set LASTSLOT to 22, create the slot directory and label it.
or
  set LASTSLOT to 21 and tapecycle to 20.


Try the attached patch, the changer configuration filename is your setting
of changerfile with a ".conf" appended.
Add a "LASTSLOT=22" to the changer configuration file.

Jean-Louis


Gordon J. Mills III wrote:
> I am having a problem using the no-reuse feature with vtapes. I have a 
> tape that contains files from a machine that is going to be 
> decommissioned. I want to save the last full backup of that machine. 
> So I put no-reuse next to that tape in the tapelist file. The problem 
> is that the next time the tape cycle comes around to that tape it acts 
> like there is no available tape. It cycles through all the tapes and says
"(expecting a new tape)" at the end.
>
> So the question is: how can I use the "no-reuse" feature? It seems 
> that amanda has to have tapecycle number of tapes even if dumpcycle is 
> set to a number lower than that. The relative section of my amanda.conf is
below.
> This is on 2.5.0b1.
>
> dumpcycle 10 days       # the number of days in the normal dump cycle
> runspercycle 10
> tapecycle 21 tapes      # the number of tapes in rotation
>
> bumpsize 10 MB          # minimum savings (threshold) to bump level 1 -> 2
> bumpdays     2          # minimum days at each level
> bumpmult     1.5        # threshold = bumpsize * (level-1)**bumpmult
>
> runtapes     1         # explained in WHATS.NEW
> tpchanger "chg-disk" # the tape-changer glue script, see TAPE.CHANGERS 
> changerfile "/etc/amanda/DailySet1/changer"
> tapedev "file:/amandatapes/DailySet1/"  # Linux @ tuck, important:
> norewinding
> # tapedev "/dev/nrst8"  # or use the (no-rewind!) tape device directly 
> rawtapedev "file:/amandatapes/DailySet1/"
>
> tapetype HARD-DISK              # what kind of tape it is (see tapetypes
> below)
> labelstr "^TAPE[0-9][0-9]*$"    # label constraint regex: all tapes must
> match
>
> Regards,
> Gordon
>
>
>   




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