Re: FW: [aix-l] 2 HDLM questions

What exactly is that you want tested?

I have a smash-n-bash lab with some servers that have redundant HDLM 2
gig adapeter. I also have a wee bit of time on my hands today.

Lemme know specifically what you want and I should be able to help.

David

-----Original Message-----
From: IBM AIX Discussion List [mailto:aix-l@xxxxxxxxxxxxx] On Behalf Of
F. Even
Sent: Thursday, February 15, 2007 8:36 PM
To: aix-l@xxxxxxxxxxxxx
Subject: Re: FW: [aix-l] 2 HDLM questions

Don't know if this ever got answered:

From: IBM AIX Discussion List [mailto:aix-l@xxxxxxxxxxxxx] On Behalf
Of
Holger.VanKoll@xxxxxxxxxxxx
Sent: Monday, March 06, 2006 03:56
To: aix-l@xxxxxxxxxxxxx
Subject: [aix-l] 2 HDLM questions



Hello,

I have 2 questions about the Hitache DLM-Manager for AIX.

1) I remember that in earlier HDLM-Documentation there was written
that
its not advisable to turn both "Path Health Checking" and "Auto
Failback" on.

In current documentation I cannot find this statement.
Does anybody remember this statement?

2) I think the reason not to enable both could be that if you set
paths
off manually (for maintenance work) they could be switched on
automatically again. In v1117 of HDLM-Dok (thats the latest I have) on
page 99 this is stated as a disadvantage.

However, my san-admin told me that
- paths that are offline due to errors are set to offline(E) and are
autom. recovered

Generally, yes...dependent I think upon the severity of the error.
We've had some funny issues before with only certain LUNs going into
OfflineE

- paths that have been set offline manually are set to offline(C) and
are not autom. recovered.

This is entirely correct. I'm not sure if this state would persist
across a reboot though....as a cfgmgr run may bring everything back
online.

Can anybody confirm that this is true?
I cannot test this as I dont have testsystems with 2 san-adapters.

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