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stly
Warnings : 1

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Joined: 25 Jul 2005
Posts: 93

PostPosted: Thu Sep 01, 2005 4:29 pm
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i got some simple doubts on mainframe basics i hope u will calify those....

How many max mainframe sessions can b opened at atime


How many max number of rows can b retrieved from a select statement.


thanks in advance
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Rupesh.Kothari

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Joined: 27 Apr 2005
Posts: 463

PostPosted: Thu Sep 01, 2005 4:48 pm
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Hi,

Quote:
How many max mainframe sessions can b opened at atime



In my mainframe shop I can open max 8 session.

Regards
Rupesh
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mainframesguru

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Joined: 24 Jun 2005
Posts: 36
Location: Hyderabad

PostPosted: Thu Sep 01, 2005 5:37 pm
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Hi,

1) In My Mainframes Session, I can use 9 screens.
That means its not fixed.

2) In cobol-DB2 Program, You can access only 1 row at a time.

Thanks And Regards
Vamshi
ICC-ISH
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mmwife

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Joined: 30 May 2003
Posts: 1592

PostPosted: Fri Sep 02, 2005 6:44 am
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1) At one time the max sessions was 32, but the max must be specified at sysgen, I beleive. This may have been increased in later releases. The default is 8.

2) You can define a cursor, then the # of rows returned is, I hesitate to say limitless, but it can attain dataset proportions.
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radhakrishnan82

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Joined: 31 Mar 2005
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Location: chennai, India

PostPosted: Fri Sep 02, 2005 9:36 am
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I can open upto 8 session.

Is SYSGEN a standalone?
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michaelraj

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Joined: 01 Sep 2005
Posts: 43
Location: Bangalore

PostPosted: Fri Sep 02, 2005 5:52 pm
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Hi,

Maximum we can open 8 screens on Mainframes. In our mainframes TSOPlus tool is uploaded, with that we can open 12 screens, but it can be counted as only one screen as TSOP.

Regards,
Mike.
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mmwife

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Joined: 30 May 2003
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PostPosted: Sat Sep 03, 2005 4:01 am
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The max screens you can use is selected by the systems pgmr that genned your system. He must have selected the default (which is 8).

Can't comment on TSOPlus - never used it.
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prasanth_thavva

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Joined: 28 Jul 2005
Posts: 86
Location: Chennai

PostPosted: Sun Sep 04, 2005 10:37 am
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i thnk u can open upto 8 session in TSO region .
Quote:
using select we can select n number of rows using cursor..but we can allocate one row in our application program,
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mmwife

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PostPosted: Mon Sep 05, 2005 12:48 am
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Listen up folks!

You can open up to 32 screens in TSO (that limit may have been increased) **IF** your sysprmr picked 32 as the default for YOUR installation.

If he doesn't select a number the installation gets the IBM default of 8.
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ironmike

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Joined: 07 Aug 2005
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PostPosted: Wed Sep 07, 2005 6:07 am
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You need to define what you mean by 'session'. If you mean VTAM or TCP/IP sessions, then if you have the proper tools, you can be logged on to TSO/E, IMS, CICS, etc., all at the same time. Each is a 'session' as far as VTAM or TCP/IP is concerned.

If you mean TSO, then it's one TSO userid per TSO session. If you have more than one unique userid assigned to you, each one can be logged at the same time as all the others. Usually, applications programmers only get one TSO userid each.

If you mean ISPF screen splits, then 32 is the max per TSO logon session. These are NOT all 'sessions', just separate subtasks to ISPF within the TSO address space.

TSOPlus is an ISV (i..e,non-IBM) product that changes the way TSO resources are managed. Logon rules for it may vary from those stated above.
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