Conference cookie::archive_backup

447.0. "How to lower the base priority of ABS process doing backup" by PRSSOS::FONDI () Thu Apr 24 1997 12:30

	Hi


 I have a customer that wants to lower the base priority of the ABS backups
 from 4 to 1, but he can't.(ABS V2.1 for VMS backup)

Questions:
**********
 1)does this priority "hard coded".
 2)if not, how to to do to lower it ?


 Let me explain, when the backup is running the process that runs is 
 ABS_BFADA9D1_1 and runs at base priority 4

 $ sho proc/id=000000ED

24-APR-1997 18:35:31.12   User: ABS              Process ID:   000000ED
                          Node: PABSLS           Process name: "ABS_BFADA9D1_1"

Terminal:
User Identifier:    [ABS]
Base priority:      4
Default file spec:  Not available

Devices allocated:  PABSLS$FTA15:
                    PABSLS$MKA500:


  He tries to lower user ABS priority to 1, restart backup but ABS_BFADA9D1_1
  still running at priority 4.  
  I have tested this on my LAB with the same result. 

UAF> sho abs

Username: ABS                              Owner:  ABS Operations Account
Account:                                   UIC:    [311,311] ([ABS])
CLI:      DCL                              Tables: DCLTABLES
Default:  ABS$ROOT:[000000]
LGICMD:   LOGIN
Flags:  DisNewMail DisMail
Primary days:   Mon Tue Wed Thu Fri
Secondary days:                     Sat Sun
Primary   000000000011111111112222  Secondary 000000000011111111112222
Day Hours 012345678901234567890123  Day Hours 012345678901234567890123
Network:  ##### Full access ######            ##### Full access ######
Batch:    ##### Full access ######            ##### Full access ######
Local:    -----  No access  ------            -----  No access  ------
Dialup:   -----  No access  ------            -----  No access  ------
Remote:   -----  No access  ------            -----  No access  ------
Expiration:            (none)    Pwdminimum: 15   Login Fails:     0
Pwdlifetime:         30 00:00    Pwdchange:      (pre-expired)
Last Login:            (none) (interactive), 24-APR-1997 18:38 (non-interactive)
Maxjobs:         0  Fillm:       256  Bytlm:       128000
Maxacctjobs:     0  Shrfillm:      0  Pbytlm:           0
Maxdetach:       0  BIOlm:       256  JTquota:       4096
Prclm:           8  DIOlm:       256  WSdef:          512
Prio:            1  ASTlm:      1024  WSquo:         2048
Queprio:         4  TQElm:       255  WSextent:     65536
CPU:        (none)  Enqlm:      2048  Pgflquo:     200000
Authorized Privileges:
  NETMBX    OPER      SETPRV    TMPMBX
Default Privileges:
  NETMBX    OPER      SETPRV    TMPMBX
UAF>



    Thank you
    Henri

    
    We have never tried this before.  We'll look into it and let you
    know what we find.
    
    Masami

The ABS_somenumericnumber is the subprocess that the VMS Backup
engine actually runs in.  The ABS Save/Restore Coordinator (which
runs as user ABS for system backups) creates this subprocess.
The values fed to the creprc system service by the coordinator
cannot be defined by the user (in other words, they are hard coded).

Why does the customer want to do this?  Always trying to understand
how the customers use ABS.

Thanks,
Kim

   Thank you for the answer Kim.
   I give it to the customer that is a little bit disappointed.
   AS system manager he wants to "play" with priority to tune.

>>>Why does the customer want to do this?  Always trying to understand
>>>how the customers use ABS.

   AT This customer (MOTOROLA), 24H/day there are users that works on the
   system, all the ABS backups run during night, but the users during
   that time see performance degradations so the question of this customer:

   "Will/When in a next release ABS support lowering base priority of
    the backup process"

        thanks Kim,
        Henri

    
    Please send the request to our product manager Judy Cross, so that it
    gets recorded.
    
    Massmi