[Veritas-vx] D1000 & DMP
Esales at ea.com
Wed Feb 19 13:02:18 CST 2003
You might want to check the JNI hba configurations (i.e. jnic.conf
depending on which card you are using)
Some previous versions of the HBA drivers set the FailoverDelay to 0
(disabling hba failover).
Try setting it to 30 seconds.
s y s t e m s a r c h i t e c t
Worldwide Technology Services & Operations
ea / ea.com
From: Carl E. Ma [mailto:carl_ma at scotiacapital.com]
Sent: Tuesday, February 18, 2003 8:08 PM
To: Darren Dunham
Cc: Veritas-vx at mailman.eng.auburn.edu
Subject: Re: [Veritas-vx] D1000 & DMP
I also have a similar situation. We are using JNI DUAL port Fibre card
connect to a Sun T3 partner group,which has two RAID5 luns.(two T3
connected together to avoid single controller failure). After I
installed the JNI driver, I can see four disks from OS level and VxVM
finds both controller(each port is a separate controller).
However when I disconnect one channel from JNI card to the T3 disk
group, system can't automatically fail over to another channel and the
system is not usable then. I have to reboot to isolate the failed
link.Did I miss anything?
On Tue, 2003-02-18 at 18:55, Darren Dunham wrote:
> > I want to know if I have two Diff Scsi interfaces in one machine and
> > independently connected to a D1000, can I have DMP configured using
> > VXVM in case one of the controllers fail, the system will be up and
> > running
> Possibly, but I wouldn't recommend it. To use DMP, you would have to
> have the same disks on both controllers. It's possible for a
> to fail in a way that jams the bus, so you'd still lose access from
> remaining controller.
> If you have a D1000, I'd prefer to split the disks, attach a
> to each side, and mirror the disks instead. The possibility of a disk
> failure is higher than a controller failure (I'm assuming), so you'd
> still want to have some sort of mirroring anyway.
> Darren Dunham
ddunham at taos.com
> Unix System Administrator Taos - The SysAdmin
> Got some Dr Pepper? San Francisco, CA bay
> < This line left intentionally blank to confuse you. >
> Veritas-vx maillist - Veritas-vx at mailman.eng.auburn.edu
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