Hi John

The problem that you're describing is first of all not a problem, and
second is a normal behavior on other plattforms such as NT/W2K and UNIX.

TSM is very CPU intensive, but also I/O intensive.

However, if you think that your TSM implementation is running slow, due to
lack of processor power, you could check:
Is your mainframe a partitioned machine?
Or, is the TSM server limited to using only some of the processors?

Normally, the S/390 guys doesn't prioritize TSM, which means they set the
max util as low as possible, to give other applications more CPU util.

Best Regards

Daniel Sparrman
-----------------------------------
Daniel Sparrman
Daniel Sparrman
Exist i Stockholm AB
Bergkällavägen 31D
192 79 SOLLENTUNA
Växel: 08 - 754 98 00
Mobil: 070 - 399 27 51


                                                                                
          
                    "Doherty, John                                              
          
                    (ANFIS)"                To:     ADSM-L AT VM.MARIST DOT EDU 
                 
                    <john.doherty@AN        cc:                                 
          
                    FIS.CO.UK>              Subject:     TSM 4.1 & MVS 390 
Performance    
                    Sent by: "ADSM:                                             
          
                    Dist Stor                                                   
          
                    Manager"                                                    
          
                    <[email protected]                                            
          
                    T.EDU>                                                      
          
                                                                                
          
                                                                                
          
                    2001-11-13 15:53                                            
          
                    Please respond                                              
          
                    to "ADSM: Dist                                              
          
                    Stor Manager"                                               
          
                                                                                
          
                                                                                
          



Hi let me explain my problem and see if any of you mainframe 390 guru's Can
help me.

We are currently running TSM 4.1.2.0 on a 390 mainframe running on a token
ring network
We currently back up on average 230 nodes per night amounting to approx.
+60GB per night.

We have found TSM very CPU intensive in relation to other applications, say
DFDSS moving 2GB or FTP or HSM.  I realise that backing up data comes at a
cost but are any of you experiencing similar
Problems with TSM and OS390 ?

Or is it just that TSM running on a mainframe is notoriously CPU intensive

any replies on performance re 390 and TSM appreciated.


> John Doherty
> Technical Specialist
> Storage Management
> Email: john.doherty AT anfis.co DOT uk
> Tel: +44 (0) 141 275 7793
> Fax: +44 (0) 141 275 9199
>
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