You are probably confused. Software based disk ownership indeed does not require that full loops/stacks or even shelves are assigned to the same filer. But  for auto-assignment algorithm to work this is required. Later versions allow auto-assignment work for full shelves, thus you can mix full shelves from different filers on the same loop/stack. It is not default and has to be enabled.

So there is nothing to fix, it works as designed J Actually I usually disable auto-assignment and do it manually, to be absolutely sure each disk belongs where it should.

---

With best regards

Andrei Borzenkov

Senior system engineer

FTS WEMEAI RUC RU SC TMS FOS

FUJITSU

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From: toasters-bounces@teaparty.net [mailto:toasters-bounces@teaparty.net] On Behalf Of Mark Flint
Sent: Tuesday, March 22, 2016 2:51 PM
To: toasters@teaparty.net
Subject: disk ownership question

Hi list. I have a 3170 running 8.0P1 7-Mode, and am having a problem with auto-assignment of disks. The unit reports that

it can’t do auto-assign, because not all of the disks on the loop are owned by the same controller. I was under the impression 

that software ownership made that unnecessary (you can laugh), but it seems not. KB from 2014 says the same thing. So,

question is, has anyone done anything like this (had to reassign a shedload of disks) to make auto-assign work, and could they 

pass any info on how I can fix this please?

Thanks,

Mark