RE: Disks are getting hammered ?SMPO0001?

Short answer: No.

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Jim Oberholtzer
Agile Technology Architects

-----Original Message-----
From: MIDRANGE-L <midrange-l-bounces@xxxxxxxxxxxxxxxxxx> On Behalf Of Rob Berendt
Sent: Monday, July 20, 2020 7:02 AM
To: Midrange Systems Technical Discussion <midrange-l@xxxxxxxxxxxxxxxxxx>
Subject: RE: Disks are getting hammered ?SMPO0001?

No SAN.
The hosting lpar of IBM i has five 59DD 1.4TB 10k spinning drives in ASP 2.
There are seven NWSDs configured for this guest. One is for tape and optical only.
5 of the nwsd's have ten 70GB storage spaces. 1 of the nwsd's has nine 70GB storage spaces.
All of the storage spaces for this guested lpar are in ASP 2.

Does it confuse a system to have more NWSD's than there are physical drives in that ASP?

Rob Berendt
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IBM Certified System Administrator - IBM i 6.1 Group Dekko Dept 1600 Mail to: 7310 Innovation Blvd
Suite 104
Ft. Wayne, IN 46818
Ship to: 7310 Innovation Blvd
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-----Original Message-----
From: MIDRANGE-L <midrange-l-bounces@xxxxxxxxxxxxxxxxxx> On Behalf Of Sajith P
Sent: Saturday, July 18, 2020 6:06 AM
To: Midrange Systems Technical Discussion <midrange-l@xxxxxxxxxxxxxxxxxx>
Subject: Re: Disks are getting hammered ?SMPO0001?

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Are you using direct attached disks or SAN based storage?

In SAN, a path failure could cause slowness As IO wait will increase when it hit that path.

Sajith

On Jul 17, 2020, at 4:52 PM, Patrik Schindler <poc@xxxxxxxxxx> wrote:

Hello Rob,

Am 17.07.2020 um 19:15 schrieb Rob Berendt <rob@xxxxxxxxx>:

IBM ran all sorts of PEX traces and stuff and are trying to blame it on that ASP only has 5 disks. Personally I would think that would be plenty for a system with
- zero interactive users
- the only batch application being the nightly backup
- One Domino server. Serves up archived email from past employees. Currently the only user on it is me. No web users, no database users.

My thoughts…

How big is the Domino Database?

Does the problem go away when you stop the Domino SBS?

:wq! PoC

PGP-Key: DDD3 4ABF 6413 38DE - https://www.pocnet.net/poc-key.asc


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