ADSM-L

Re: AIX SP

1997-08-20 15:49:00
Subject: Re: AIX SP
From: Hilton Tina <HiltonT AT IS1.INDY.TCE DOT COM>
Date: Wed, 20 Aug 1997 13:49:00 CST
I did leave that one part out.  Our ADSM server's mksysb goes to the CWS.
 That gets backed up to tape with a savevg.  We rebuild our CWS from it's
mksysb, restore the ADSM server image from the savevg tape, then install the
ADSM server node from the CWS using it's mksysb.  We want to set up our ADSM
server node as the boot/install server for the other nodes, but haven't
gotten around to it yet. The ADSM database and disk storage pools are on EMC
Symmetrix dasd.  In the case of a node failure, HACMP will fail the dasd
over to another node and the server (already installed there) will start up
and take over.

Have you done a full SP recovery yet Tom?  If so, I'd like to hear how it
went.

Tina Hilton
Thomson Consumer Electronics
 ----------
From: Kauffman, Tom
To: ADSM-L AT VM.MARIST DOT EDU
Subject: Re: AIX  SP
Date: Wednesday, August 20, 1997 12:53PM


You always need to be able to re-build the adsm server from the CWS in
this setup. I currently have the CWS set up as the boot/install server
for the ADSM node, and the ADSM node is the boot/install server for the
rest of the SP environment (9 nodes, 2 frames - about to become 12
nodes, 3 frames).

I've also go an nfs mount of a small filesystem on the CWS that is used
for a copy of the adsm device config and volume history files. The
theory works like this:
        Use the CWS mksysb and savevg to rebuild a CWS
        Install the ADSM server from the CWS
        Use the device config and volume history to define a new ADSM
database
        Restore the ADSM database from the DBbackup
        Use ADSM to restore the other node mksysb images
        boot/install/restore . . .

And, in the event it's only a 'minor' disaster, my ADSM database is on
external ssa drives that can be hung on any of the nodes.

Tom Kauffman
Sr. Technical Advisor
NIBCO, Inc

>----------
>From:  Hilton Tina[SMTP:HiltonT AT IS1.INDY.TCE DOT COM]
>Sent:  Wednesday, August 20, 1997 11:24 AM
>To:    ADSM-L AT VM.MARIST DOT EDU
>Subject:       Re: AIX  SP
>
>Rafael,
>
>We have ADSM on one node of our SP.  Currently, we only use ADSM for the SP
>nodes but plan to add other RS6000s and HPs that we have.   We have all our
>traffic going over the switch, since that's supposed to get the highest
>performance.  We also have a client on the server node to back up the files
>there too.  Make sure that the dsm.sys for that node is setup to use
>loopback (local host) rather than the network.
>
>We also use ADSM to back up the mksysb images.  When the mksysb gets run on
>each node, the output is piped to a file system on the server node, then
>that file is archived.  If we ever need to restore that node from the
mksysb
>image, we'll restore the proper mksysb to the control workstation and then
>use nim to restore the node from that image.  Of course, all that was set
up
>as recommended by the IBM consultants we had in at the time.
 Unfortunately,
>we didn't get the chance to test it before the nodes became production.
> We're hoping to test it soon with a new node we just got in so we'll feel
>more comfortable about it in case we have a real failure.
>
>If you have any other questions, let me know.
>
>Tina Hilton
>Thomson Consumer Electronics
>hiltont AT indy.tce DOT com
> ----------
>From: Rafael Goldschmidt
>To: ADSM-L AT VM.MARIST DOT EDU
>Subject: AIX  SP
>Date: Wednesday, August 20, 1997 11:52AM
>
>
>Hi ADSMers!
>Has anyone experience or knowledge in installing ADSM in an AIX SP
>machine?  I have to install ADSM in an AIX SP with 5 nodes.  I
>understand that one of the 5 nodes would be the server, and the other 4
>would be the backup clients. Is this correct? Any kind of help would be
>appreciated!
>Thank you.
>
>
>Rafael J. Goldschmidt
>Buenos Aires, Argentina
>Telefonos / Phones: (54-1) 553 9909 / 421 4782
>rafagold AT cano.com DOT ar
>
<Prev in Thread] Current Thread [Next in Thread>