From:	CRDGW2::CRDGW2::MRGATE::"SMTP::CRVAX.SRI.COM::RELAY-INFO-VAX" 25-SEP-1989 09:25
To:	MRGATE::"ARISIA::EVERHART"
Subj:	RE: Must CLUSTER_CONFIG zap volume labels on local page/swap disks?

Received: From LBL.GOV by CRVAX.SRI.COM with TCP; Mon, 25 SEP 89 05:27:28 PDT
Received: from warner.hepnet by LBL.Gov with VMSmail ;
	Mon, 25 Sep 89 05:26:40 PDT
Date:    Mon, 25 Sep 89 05:26:40 PDT
From: nagy%warner.hepnet@LBL.Gov (Frank J. Nagy:VAX Guru,Wizard&Loose Cannon)
Message-Id: <890925052640.204056c5@LBL.Gov>
Subject: RE: Must CLUSTER_CONFIG zap volume labels on local page/swap disks?
To: Info-VAX@sri.com
X-St-Vmsmail-To: INFO_VAX

>>However, running CLUSTER_CONFIG to add the nodes resulted in changed
>>volume labels on these disks.  The labels are now of the form
>> 
>>	<decnet nodename>_<decnet address>
>> 
>>e.g., AMSTEL_62502.  (AMSTEL's decnet address is 61.38, 62502=(61*1024)+38.)
>>This happened even though we told CLUSTER_CONFIG it was *not* allowed
>>to initialize the disk.  (And it didn't;  it just zapped the volume label.)

When adding satellite nodes, we use CLUSTER_CONFIG to initialize the disk
only if (a) it will not be served to the cluster and (b) is used only for
local page/swap and scratch disk.

Otherwise, we use CLUSTER_CONFIG to add the satellite as diskless.  After
booting the satellite (with small page/swap files on the system disk),
we initialize the local disk as desired and prepare a SYPAGSWPFILES.COM
file in the SYS$SPECIFIC:[SYSMGR] area of this node.  The SYPAGSWPFILES
procedure mounts the local disk and installs the page and swap files.
The STARTUP procedure looks first for SYS$SYSTEM:SATELLITE_PAGE.COM and
then for SYS$MANAGER:SYPAGSWPFILES.COM early in the startup; either of
these procedures can be used to mount local disks and install page/swap
files.

After SYPAGSWPFILES is ready and the local disk has been initialized,
we rename the small page/swap files in SYS$SYSTEM to something like
OLD-PAGEFILE.SYS and reboot the node. When then node restarts, it will
now execute SYPAGSWPFILES and mount the local disk and install its
page/swap files from this disk (assuming everything has been done
correctly).  Since the main system disk files (now named OLD-*FILE.SYS)
are not being used, they can be deleted.

= Dr. Frank J. Nagy   "VAX Guru & Wizard"
= Fermilab Research Division/Electrical and Electronics Dept/Controls Group
= HEPnet/SPAN: WARNER::NAGY (43198::NAGY) or FNAL::NAGY (43009::NAGY)
= BitNet: NAGY@FNAL        = Internet: NAGY%WARNER.DNET@FNGATE.FNAL.GOV
= USnail: Fermilab POB 500 MS/220 Batavia, IL 60510