RE: CRTNWSSTG sector size - 512 or 4096 -- MIDRANGE-L

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Thanks Larry.
I wasn't finding much documentation on this.

Paul

-----Original Message-----
From: MIDRANGE-L [mailto:midrange-l-bounces@xxxxxxxxxxxx] On Behalf Of DrFranken
Sent: Saturday, December 29, 2018 1:15 AM
To: Midrange Systems Technical Discussion
Subject: Re: CRTNWSSTG sector size - 512 or 4096

512.

4096 is supported on POWER8 and up however there are performance
penalties with 4096 support. 4096 also MIGHT work for NON load source on
POWER7 D models and some POWER7 enterprise machines even supported 4096
load source if firmware is current.

Last conversation I had with DASD support indicated it wasn't likely to
be corrected. 4096 does give a slight increase in available disk to the
guest but not worth the potential performance impact.

- Larry "DrFranken" Bolhuis

www.Frankeni.com
www.iDevCloud.com - Personal Development IBM i timeshare service.
www.iInTheCloud.com - Commercial IBM i Cloud Hosting.

On 12/29/2018 12:40 AM, Steinmetz, Paul wrote:

When creating NWSSTG, what sector size should be specified, 512 or 4096?
Default is 512.

Thank You
_____
Paul Steinmetz
IBM i Systems Administrator

Pencor Services, Inc.
462 Delaware Ave
Palmerton Pa 18071

610-826-9117 work
610-826-9188 fax
610-349-0913 cell
610-377-6012 home

psteinmetz@xxxxxxxxxx
http://www.pencor.com/

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