Per HAFO, absolutely and it's part of MPE 7.5
Under SYSGEN>IO>HA you define your LDEVs and primary path and then the alternate card path. No need for multiple config groups.
I suggest you alternate ldevs between cards so half are on one attached to Controller 1 on the VA and the other half on card 2 going to VA Controller 2.
Works like a champ...you can lose a fiber card, cable, or VA controller and you'll get a series of tellop/replies on the console, but it keeps right on running using the single path.
When you've fixed the problem (say a failed controller), you can go into the HA utility under sysgen and move them back to the normal path.
jack
________________________________
From: Mark Landin [mailto:[log in to unmask]]
Sent: Thursday, January 20, 2011 10:44 AM
To: Jack Connor
Cc: [log in to unmask]
Subject: Re: [HP3000-L] "Must have" patches for new 7.5PP5 system?
On Thu, Jan 20, 2011 at 9:11 AM, Jack Connor <[log in to unmask]<mailto:[log in to unmask]>> wrote:
Hi Mark,
I'm assuming the fiber cards are the A6795A 1/2 Gb cards? I once spent entirely too much time trying to get the 1gig cards to work.
Yes.
Do you have an HPUX or Windows box with Command View set up to monitor the VA? It's very advisable as you can do a lot of drill down if you have problems and all remote to the system.
Did you configure HAFO?
Didn't know MPE could HAFO. We have multiple CONFIG groups so we can run all LDEV's off just one path if we need to. Is there more that MPE can do in that area? (I'm used to HP-UX LVM where the failover is automatic and transparent..)
You may want to offload the CIO nic with a standalone 100Bt card and leave your DTC on the CIO.
That's about all I can think of...I think you'll like the new architecture!
jack
-----Original Message-----
From: HP-3000 Systems Discussion [mailto:[log in to unmask]<mailto:[log in to unmask]>] On Behalf Of Mark Landin
Sent: Thursday, January 20, 2011 9:58 AM
To: [log in to unmask]<mailto:[log in to unmask]>
Subject: [HP3000-L] "Must have" patches for new 7.5PP5 system?
We have just stood up a new A-class 2-way running 7.5 PP5. This is our first
7.5 system ... our two other machines are still on 6.5.
This system is configged with 4GB RAM, a VA7410 running off of two PCI FC
HBA's, 1 DTC 16, and two SureStore DDS-2 tape drives running off the LVD
SCSI interface.
SUBSYS products consist of NS, COBOL, and FORTRAN. We aren't using ALLBASE.
We do use FTP, incoming and outgoing. We will probably starting using
Sendmail for a few things (as an old UNIX admin, I respect Sendmail, but do
not fear it!)
Primary use for this system is MANMAN with around 170 users.
Our 3rd party portfolio is the usual: Suprtool, MPEX, Minisoft ODBC, and
Adager, plus some other odds and ends.
So, for this kind of system, what are the "must have" patches that we should
install on top of PP5?
--
"He's old enough to know what's right and young enough not to choose it.
He's strong enough to win the world and weak enough to lose it." - Neal
Peart
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