[Veritas-vx] pathtype

[badlya badlya]

Hi ALL,

I have some of the disks with state as enabled but some others (within same
dg) have primary/secondary (first/second path).


c3t10d34s2 state=enabled
c6t13d34s2 state=enabled

So are the above disks in active/active or primary/primary state or else.

=========

c3t14d4s2 state=enabled type=primary
c5t14d4s2 state=enabled type=secondary

[Hari Vemuri]

If the pathtype is not specified then its an Active/Active LUN. If the pathtype is specified then its an Active/Passive or Asymmetric Active/Active [ALUA] LUN. All primary paths would be shown with pathtype as 'primary' and same is the case with 'secondary' paths.

With regards
Hari
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Today's Topics:

1. pathtype (badlya badlya)


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Date: Mon, 1 Aug 2011 12:03:53 +0530
From: badlya badlya <***@gmail.com>
Subject: [Veritas-vx] pathtype
To: veritas-***@mailman.eng.auburn.edu
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Hi ALL,

I have some of the disks with state as enabled but some others (within same
dg) have primary/secondary (first/second path).


c3t10d34s2 state=enabled
c6t13d34s2 state=enabled

So are the above disks in active/active or primary/primary state or else.

=========

c3t14d4s2 state=enabled type=primary
c5t14d4s2 state=enabled type=secondary
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[badlya badlya]

thanks Hari. even i got the same input from google as well. as i didn't get
any response i have done some testing on my machines. here are my findings.

1. The process doesn't use both the disks (basically reads only)
simultaneously when pathtype is not specified (active / active position)

(verified using vxdmp stat)

2. i tried to make the both the disks as primary after than it started using
both the disks...

so which one is working one. active/active or primary/primary.?


-----Original Message-----
From: veritas-vx-***@mailman.eng.auburn.edu [mailto:
veritas-vx-***@mailman.eng.auburn.edu] On Behalf Of Hari Vemuri
Sent: Tuesday, August 02, 2011 10:25 AM
To: veritas-***@mailman.eng.auburn.edu
Subject: Re: [Veritas-vx] pathtype

If the pathtype is not specified then its an Active/Active LUN. If the
pathtype is specified then its an Active/Passive or Asymmetric Active/Active
[ALUA] LUN. All primary paths would be shown with pathtype as 'primary' and
same is the case with 'secondary' paths.



With regards

Hari

Post by badlya badlya
Hi ALL,
I have some of the disks with state as enabled but some others (within same
dg) have primary/secondary (first/second path).
c3t10d34s2 state=enabled
c6t13d34s2 state=enabled
So are the above disks in active/active or primary/primary state or else.
=========
c3t14d4s2 state=enabled type=primary
c5t14d4s2 state=enabled type=secondary