NetBackup Queries\Scenarios

[reachah]

Hello,

Request to share technical information for below queries which I has to share the same with the client,

1. Master is shared with SSO option . Around 3 different account using same Master server . What if a shared Tape drive(SSO) is deleted from one environment . Is the same applicable for deleting the robotic as well (robotic control host)

2. Need to configure SLP - Total 3 copies to be configrued . 1st copy to Disk ,2nd Copy to Tape & 3rd copy to Tape(increased retention ).

       a) 1st Copy fails ,what happens to 2nd copy & 3rd Copy

       b) 1st copy success,2nd copy fails ,what happens to 3rd copy

3. To scan tape drives in different OS ,below are the coomands,

    solaris - sgscan

    ux-Aix - prtconf

    linux - lsdev -l

    Windows - scan

    HPUX -  ioscan -f
  Is my understanding correct .If not pls correct the wrong one's

4 . Yesterday , in my master server all jobs suddenly started failing with error code 2059 for multiple different environments i.e.,different media servers . Issue was fixed however vendor unable to confirm why the issue occured . And vendor gave very generic reasons . Someone have changed\tried to to changes of Robot or Drive at Hardware Level(OS) or at NetBackup level . Though Issue is fixed ,I need to provide Root Cause . Not sure which specific logs or events to be investigated . 

My Master Version - Linux Red Hat ,7.5.0.6 v & around 6 media servers with Unix,Aix falvours with same NetBackup version as that of Master . No Windows Media server

I had to club different queries into one Forum as above are the one's which I had seen\experienced at different scenarious\requirement for which till now I am unable to find a Concrete reply . Apprciate your patience & expecting replies

[mansoor_sheik]

Hi reachah,

solaris - sgscan
AIX - cfgmgr, check lsdev | grep -i rmt
Linux - echo 1> /sys/class/fc_host/host1/issue_lip
Windows - Scan
HPUX - ioscan -fnC tape
 

 check with /usr/openv/volmgr/bin/scan commad also.

[Marianne · Accepted solution]

1. Device entries are per media server. Deleting tape drive from one media server will not affect other media servers. (Not sure why you/customer would want to do this...)

2. a) Nothing. Copy 2 and 3 are duplicates of the backup. Without a 'source' copy, there can be no duplicates.

   b) It depends on what you select in SLP as source for copy 3. If backup is selected as source for both copies, then copy 3 will be done. If copy 2 is selected, copy 3 will not be attempted until copy 2 is done. SLP copies are retried until succussful.

3. scan can be used for all OS's. This is a NBU command that sends 'scsi-command' at OS level to check for devices.  Native OS commands can be found in NBU Device Config Guide.

4. I have answered this over here: https://www-secure.symantec.com/connect/forums/all-backup-suddenly-getting-failed-2059-error#comment...

[reachah]

Thanks Marianne - For giving the accurate justifications except 4 , I have responded it in the same old forum for 4