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Saturday, October 27, 2007

ACSLS Shared Library DRM Checkout

I was recently asked by a reader if I would show them how I do the checkout of my DRM tapes in an shared ACSLS library. If you are not aware, ACSLS does not really support true DRM checkout within a shared library environment. Unfortunately, what occurs when you run the checkout is that ACSLS tries to check the tapes out one at a time; prompting for a request response before checking out the next tape. I found this out when we implemented our STK L5510 library and the checkout process was broken. So I went searching for some kind of answer to the situation and found APAR IC45537 which states the problem has been known since March of 2005. IBM has not resolved the issue within TSM but has relied on a local fix to resolve this issue. So I decided to post the script I created here to help those people out who have an ACSLS library and are looking to share it between multiple TSM instances and don't want to have to deal with Gresham's software.

Here is a basic rundown of what the script does.



  • On each library client DRM checks the tapes out with a REMOVE=NO option and creates a file with a list of the tapes.
  • On the library manager the tapes are checked back into the library.
  • The Library manager then checks every library clients DRM tapes out.
I know it sounds complex but it's not. It also is not perfect so you will need to keep on top of it, but don't worry it is not so bad that it's a headache. Some explaination is required also; In my environment I have 7 TSM instances and the firsts is just a library controller. This is why the following script starts at TSMSERV2 and stops the loop after TSMSERV7. Also note that the pipe sysmbol will not show up for some reason so you need to add it before the grep statements. Before you use the script you will also notice that it uses a TSM macro. Create the file by putting the following command into a macro called move_drmedia.mac.

move drm * so=dbb wherestate=mo tostate=vault remove=no CMD=&VOL CMDFILE=/usr/tivoli/tsm/client/ba/bin/Vol_List APPEND=YES WAIT=YES
move drm * so=dbb wherestate=vaultr tostate=onsiter


=-=-=-=-= Below Starts Checkout Script =-=-=-=-=

#!/bin/ksh

cd /usr/tivoli/tsm/client/ba/bin

OFFSITE=/usr/tivoli/tsm/client/ba/bin/OFFSITE/offsite.txt
RETRIEVE=/usr/tivoli/tsm/client/ba/bin/OFFSITE/retrieve.txt
ADSMID=`cat /usr/local/scripts/ADSMID`
ADSMPASS=`cat /usr/local/scripts/ADSMPASS`
I=2

cp $OFFSITE "$OFFSITE.BAK"
cp $RETRIEVE "$RETRIEVE.BAK"
cp /usr/tivoli/tsm/client/ba/bin/Vol_List /usr/tivoli/tsm/client/ba/bin/Vol_List.bak

cat /dev/null > /usr/tivoli/tsm/client/ba/bin/Vol_List

printf "Use this list to determine tapes that are to go offsite report any discrepancies to the Recovery Services Team.\n\n" > $OFFSITE
printf " \n\n" >> $OFFSITE
printf "=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-\n\n" >> $OFFSITE
printf " Tapes to be sent offsite\n\n" >> $OFFSITE
printf " Current as of: `date`\n\n" >> $OFFSITE
printf "=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-\n\n" >> $OFFSITE

printf "Use this list to determine tapes that are to come back onsite from Iron Mountain for reuse. Report any discrepancies to the Recovery Service Team.\n\n" > $RETRIEVE
printf " \n\n" >> $RETRIEVE
printf "********************************************************\n\n" >> $RETRIEVE
printf " Tapes to be brought back onsite from Iron Mountain\n" >> $RETRIEVE
printf " and placed back into TSM library for scratch.\n\n" >> $RETRIEVE
printf " Current as of: `date`\n\n" >> $RETRIEVE
printf "********************************************************\n\n" >> $RETRIEVE

while [ $I -lt 8 ]
do
S=TSMSERV-$I

dsmadmc -id=$ADSMID -password=$ADSMPASS -servername=$S -dataonly=yes "select volume_name from drmedia where state='MOUNTABLE' " grep L[0-3] >> $OFFSITE

dsmadmc -id=$ADSMID -password=$ADSMPASS -servername=$S -dataonly=yes "select volume_name from drmedia where state='VAULTRETRIEVE' " grep L[0-3] >> $RETRIEVE

dsmadmc -id=$ADSMID -password=$ADSMPASS -servername=$S 'macro move_drmedia.mac'

sleep 120

I=$(( $I + 1 ))
done

dsmadmc -id=$ADSMID -password=$ADSMPASS -servername=TSMSERV-1 'CHECKIN LIBVOL TSMLIB search=yes stat=private checklabel=no vollist=FILE:/usr/tivoli/tsm/client/ba/bin/Vol_List'

sleep 180

dsmadmc -id=$ADSMID -password=$ADSMPASS -servername=TSMSERV-1 'CHECKOUT LIBVOL TSMLIB vollist=FILE:/usr/tivoli/tsm/client/ba/bin/Vol_List'

mail -s "TDC Daily Tape Checkout" $HN tape_rpt < $OFFSITE

mail -s "TDC Daily Tape Return" $HN tape_rpt < $RETRIEVE

2 comments:

  1. I'm currently setting up the DRM scripts for the checkout from an ACSLS library that is used by several TSM servers. Your post is reallay helpfull for this issue.

    However I'm wondering how do you do the checkin later on, more specific how do you set the correct owner of the tapes?

    The copy storage pool tapes still have a status COURIERRETRIEVE when they are being checked in. I change the status to ONSITERETRIEVE afterwards. This makes it's easy to find tapes that should be onsite already but were somehow forgotten by the vaulting company.

    Could you post your checkin scripts too? Or do you skip the state COURIERRETRIEVE and change the status immediately to ONSITERETRIEVE. Then the tapes become scratch again.

    Looking forward for an update!
    Kurt

    ReplyDelete
  2. Kurt,

    I skip the courier retrieve and go straight to onsiteretieve. Either way should be fine, but I never tried checking in a tape as scratch when in courierretieve state, does TSM allow it to be checked in as scratch?

    ReplyDelete