Ok, thanks for the responses. I will adjust accordingly.  

 

Thank You,

 

Terry Martin

Lockheed Martin - Citic

z/OS and z/VM Performance Tuning and Operating Systems Support

Office - 443 348-2102

Cell - 443 632-4191

 

From: The IBM z/VM Operating System [mailto:[email protected]] On
Behalf Of Scott Rohling
Sent: Wednesday, February 10, 2010 12:00 PM
To: [email protected]
Subject: Re: Number of MOD-27 Cylinders for a z/Linux guest

 

No - that's not true...   Linux doesn't care about 3390 model numbers --
it takes the cylinders it's given and is happy.

The reason that I would define Mod27's as 30050 cylinders (actually
30049)  Is so that 3 3390-9 size minidisks (10016 cylinders) will fit
perfectly.  (so:  3x10016 = 30048 + 1 for cylinder 0 )

That's the only plausible reason I see for picking that particular
number...

Scott

On Wed, Feb 10, 2010 at 9:51 AM, Martin, Terry R. (CMS/CTR) (CTR)
<[email protected]> wrote:

Error! Filename not specified.

Hi 

 

I know that there are 32,760 cylinders for a 3390 MOD27. But thus far I
have been carving my MOD27s on my DS8100 as max. cylinders of 30050 for
my REL z/Linux guests. I was told that for z/Linux (I am running REL4
and 5) that 30050 is the max cylinders it would recognize for a MOD27 is
this correct? 

 

Thank You,

 

Terry Martin

Lockheed Martin - Citic

z/OS and z/VM Performance Tuning and Operating Systems Support

Office - 443 348-2102

Cell - 443 632-4191

 

 

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