How to recover data from Scratch Volume



Help for IBM's record-oriented filesystem VSAM, ESDS, KSDS, RRDS, LDS and Storage management Subsystems

Re: How to recover data from Scratch Volume

Postby expat » Wed Jun 06, 2012 11:56 am

One of the major problems is if the tape is virtual or real. If the tape is real then the problems can be resolved as described above.

If the tape is virtual, in many sites the header information is deleted from the VTS at volume uncatalog / expiry time and once that info is lost it is unfortunately good night Vienna
expat
 
Posts: 382
Joined: Sat Jun 09, 2007 3:21 pm
Has thanked: 0 time
Been thanked: 1 time

Re: Re: How to recover data from Scratch Volume

 

Re: How to recover data from Scratch Volume

Postby Bad Man » Wed Jun 06, 2012 4:56 pm

Expat Are you saying if it is real it can solved using the solution given by me?
Bad Man
 
Posts: 96
Joined: Sun Apr 04, 2010 2:20 pm
Has thanked: 0 time
Been thanked: 0 time

Re: How to recover data from Scratch Volume

Postby Robert Sample » Wed Jun 06, 2012 5:06 pm

Your solution will work as long as the tape has not been reused. Once the tape has been written on again, there's no way to recover the data. As long as the tape is physical, and nothing has written to it, and the data set is not a multi-volume data set, then your approach would allow you to recover the data set(s) on the tape.
Robert Sample
Global moderator
 
Posts: 3367
Joined: Sat Dec 19, 2009 8:32 pm
Location: Dubuque, Iowa, USA
Has thanked: 1 time
Been thanked: 222 times

Re: How to recover data from Scratch Volume

Postby Bad Man » Wed Jun 06, 2012 5:09 pm

Thanks Guys I didnt knew this difference between Virtual and Real Tape...howevevr usually when we backup disks we usually have atleast one physical copy..
Bad Man
 
Posts: 96
Joined: Sun Apr 04, 2010 2:20 pm
Has thanked: 0 time
Been thanked: 0 time

Previous

Return to VSAM/SMS

 


  • Related topics
    Replies
    Views
    Last post