Question about LPAR



Post anything related to mainframes (IBM & UNISYS) if not fit in any of the above categories

Question about LPAR

Postby ahmad » Sun Oct 19, 2008 6:21 pm

i have a question about LPAR.

LPARS work sequentially or parallel?
we know that LPAR is unique device(cp,memory,output devices) physically; but its logically two or more systems with their own OS.
So i'll be glad if someone answer me.
ahmad
 
Posts: 4
Joined: Sun Oct 19, 2008 6:13 pm
Has thanked: 0 time
Been thanked: 0 time

Re: Question about LPAR

 

Re: Question about LPAR

Postby dick scherrer » Sun Oct 19, 2008 11:59 pm

Hello Ahmad and welcome to the forum,

LPARS work sequentially or parallel?
They work independently of each other. If there are 2 lpars, both have work going on concurrently.

As with any shared resource, if multiple processes want to use it at the exact same time, they take turns so one encounters a brief wait.

I'm not sure what you really want to know and i'm not sure i've answered. . . :?
Hope this helps,
d.sch.
User avatar
dick scherrer
Global moderator
 
Posts: 6304
Joined: Sat Jun 09, 2007 8:58 am
Has thanked: 3 times
Been thanked: 92 times

Re: Question about LPAR

Postby ahmad » Mon Oct 20, 2008 9:14 am

thanks a lot dear friend.
you know, i'm not even sure that my question is true and acceptable or not. but as you say and I say so, lpars work sequentially, cus, if two or more processes request cpu at same time, it'll service to one process and then to another one. (maybe)just like round robin algorithm in pc.
anyway i'm new in mainframe & i need more & more informations. ;)
ahmad
 
Posts: 4
Joined: Sun Oct 19, 2008 6:13 pm
Has thanked: 0 time
Been thanked: 0 time

Re: Question about LPAR

Postby dick scherrer » Mon Oct 20, 2008 9:23 am

You're welcome :)

but as you say and I say so, lpars work sequentially
Not quite what i said (or meant to say).

My observation was:
As with any shared resource, if multiple processes want to use it at the exact same time, they take turns so one encounters a brief wait.


What i would encourage is to let this be something that you look into more deeply after you become more knowledgable. I believe it is premature now. If you are completely new to the environment, there are many other disciplines you will benefit by learning before being concerned with lpar management/contention.
Hope this helps,
d.sch.
User avatar
dick scherrer
Global moderator
 
Posts: 6304
Joined: Sat Jun 09, 2007 8:58 am
Has thanked: 3 times
Been thanked: 92 times


Return to All other Mainframe Topics

 


  • Related topics
    Replies
    Views
    Last post