[Search for users] [Overall Top Noters] [List of all Conferences] [Download this site]

Conference cookie::archive_backup

Title:Archive/Backup
Moderator:COOKIE::MHUAIG
Created:Wed Sep 08 1993
Last Modified:Fri Jun 06 1997
Last Successful Update:Fri Jun 06 1997
Number of topics:479
Total number of notes:2283

380.0. "SLS and ABS co-existing?" by SWETSC::WESTERBACK (Panta rei) Mon Feb 17 1997 01:01

    Hi,
    
    On our site we use SLS 2.6 to backup about 50 systems to some 
    TZ877's and TZ87's. I was thinking of trying out ABS now that
    2.1 seems to be approaching (or is it already released?)
    
    Is it possible to have SLS and PAB co-exist? Like going to ABS on a 
    few systems to start with, and still having the same SLS tape database? 
    Is SLS 2.6 enough, or do I  need to upgrade?
    
    I guess if it works, it would mean start to migrate one system with a
    tapedrive, and all the RD clients using that drive?
    
    With ABS can I still (like I do now) use a TZ877 as a stacker, or
    must I use it as a robot (import/export tapes etc)?
    
    Rgds,
    Hans
T.RTitleUserPersonal
Name		DateLines
380.1Hans 2 HansSTOWKS::SLUISHans van Sluis -- Storage Engineering Support Europe- DTN 889 9526Mon Feb 17 1997 01:4517
Hans,

Yes, SLS and ABS can (and actually do) coexist. You can use ABS V2.1.
In principle, the release of SLS is irrelevant; however, quite a number of bugs
have been solved since V2.6, so we strongly recommend to upgrade to SLS V2.8A.

The bad new is that ABS will treat the TZ877's as robots, so you'll have
to check the firmware of the drive (V60 or higher), adapt your 
SYS$MANAGER:TAPESTART.COM , define MAGAZINES and BIND VOLUMES to those
magazines. You also will have to INIT EVERY VOLUME *BEFORE* you let
ABS work on it, as the current version of ABS cannot handle scratch tapes
(SLS can, but ABS V2.1 not).

RDF can also be used, but you may be you can also TMSCP serve the tape drives
to the rest of the cluster.

	Hans van Sluis, StorageWorks Engineering Support Europe
380.2ABS needs pools to keep track of volumes in & out of jukeboxesCX3PST::WSC217::SWANKDavidMon Feb 17 1997 14:4513
>The bad new is that ABS will treat the TZ877's as robots, so you'll have
>to check the firmware of the drive (V60 or higher), adapt your 
>SYS$MANAGER:TAPESTART.COM , define MAGAZINES and BIND VOLUMES to those
>magazines. You also will have to INIT EVERY VOLUME *BEFORE* you let
>ABS work on it, as the current version of ABS cannot handle scratch tapes
>(SLS can, but ABS V2.1 not).

Since ABS requires a robotic device and ABS is not cognitive of what volumes
are in any given robot and what ones are not you'll have to use ABS/MDMS
pools to help ABS keep track.  See the MDMD V2.8A release notes for all the
gory details on how to manage jukeboxes with ABS and ABS-OMT.

\David