RE: Performance tuning

["Steinmetz, Paul" <PSteinmetz@xxxxxxxxxx>]

Darren,

< once you purchase the option

Specifically which option.

Paul

-----Original Message-----
From: MIDRANGE-L [mailto:midrange-l-bounces@xxxxxxxxxxxx] On Behalf Of Darren Strong
Sent: Monday, December 03, 2018 10:03 AM
To: Midrange Systems Technical Discussion
Subject: Re: Performance tuning

This is also referred to as journal caching, if you're searching for 
information on it. Its activated with the JRNCACHE(*YES) function in 
CHGJRN, once you purchase the option. In summary, journal data is cached 
into memory before writing to disk in larger chunks, rather than making 
sure its written at every change. It makes a big difference on journaled 
file write/update performance.





From:   "Joe Pluta" <joepluta@xxxxxxxxxxxxxxxxx>
To:     midrange-l@xxxxxxxxxxxx
Date:   12/02/2018 01:06 PM
Subject:        Re: Performance tuning
Sent by:        "MIDRANGE-L" <midrange-l-bounces@xxxxxxxxxxxx>



Yes, we've already gone to SSD, Rob, so that particular ship has already 
sailed.  :)  However, I am unfamiliar with HA Journal Performance.  We 
use MIMIX; I wonder if this is something I should be looking into.  
Heck, for all I know we already have it, but it definitely sounds like 
something I should look into.

On 11/30/2018 12:31 PM, Rob Berendt wrote:
> Sometimes throwing money at hardware isn't always the answer.  Our
> original foray into SSD's was a big disappointment.  Much less money for 
a
> much larger return on investment would have been to buy the "HA Journal
> Performance" option as part of SS1.  I daresay it will be a rare
> consultant who can pinpoint WHY you might need that and predict how much
> it will help.
>
>
> Rob Berendt