Tivoli Storage Manager (TSM) Basic Concepts Interview Questions


In this post we will discuss some important concepts that most interviewers questions on. I have tried to briefly describe about these topics in this post but recommend you to do some research and prepare your own answers.....



TSM basic interview concepts are policy management, onsite and offsite reclamation, expiration, lanfree  and tape librar operations, DRM and daily administratvie tasks

TSM DAILY ACTIVITIES

Health checkup:

  daily scratch tapes count
  previous day database backup happend or not
  previous day client schedule happend or not
  previous day Adminschedule happend or not
  drives and paths are online or offline
  verifying any disk volumes are offline 

RECLAMATION

   Movement of data from one tape to another another tape within in the storage pool
   using reclaim threshold parameters.

ONSITE RECLAMATION
    onsite reclamation  was done in primary storage pools only.

 OFFSITE RECLAMATION
     offsite reclamation  was done in secondary storage pools only by moving unexpired data from onsite volumes to a new copypool volumes. Then, the old copypool volume can be used as a scratch volume.

 BENIFIT FOR ONSITE RECLAMATION

   By using onsite reclamation we can efficiently us the tape resources. Scratch tapes are generated as soon as data on them expires.

Also Read: Tape Library related Interview Questions

DRM STEPS

       backup the primary stgpool to copy stg pool
       backup tsmdb
       move drmedia
       remove volume from library
       run prepare
       transport drmedia to offsite
        get free media from offsite back

LAN FREE
 
    It is a Combination of tsm and SAN environment.
    In LAN, data will first go to the server and  then it will go to the Library.
    In Lan free, data will directly go to the shared library through SAN and meta data wiil go to the database through LAN.

    SERVER TO SERVER COMMUNICATION
    CHANGES IN DSM.OPT FILE
    INSTALL AND  CONFIGURE THE STORAGE AGENT
    ZONING THE DRIVES.
      
EXPIRATION
 
    It is the process to delete the expired datA FROM the database.

In case of read/write errors on tapes how will you audit the volume.

     Audit volume volumename fix=yes.

AUDIT LIBRARY.
 
  Any mismatches between library and the database inventory.


Also Read: 200+ TSM Interview Question & Answers to crack any interview




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