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Conference turris::digital_unix

Title:DIGITAL UNIX(FORMERLY KNOWN AS DEC OSF/1)
Notice:Welcome to the Digital UNIX Conference
Moderator:SMURF::DENHAM
Created:Thu Mar 16 1995
Last Modified:Fri Jun 06 1997
Last Successful Update:Fri Jun 06 1997
Number of topics:10068
Total number of notes:35879

9123.0. "Swaping of Servers with HSZ40" by ZPOVC::YINGYONG () Wed Mar 12 1997 00:16

    My customer has an AS2000 padestal server with an SWX800 cabinet. 
    HSZ40 is used and there are 30 disks installed.
    
    There is another AS41000 pedestal server with only 6 disks.
    
    The idea is how much work will be involved if we would like to swap the
    servers, i.e. the AS4000 will be connected to the SWX800 with HSZ40
    controller and 30 disks, and the AS2000 will have 6 disks.
    
    The AS2000 runs Unix, and the AS4000 runns NT.
    
    Is it just a swap of server and rebuilding of the kernel, or has to
    backup all the data in the 30 disks and restore them back once the
    HSZ40 controller is installed ?
    
    Rgds.
T.RTitleUserPersonal
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9123.1Keep the names the same...SSDEVO::ROLLOWDr. File System's Home for Wayward Inodes.Wed Mar 12 1997 10:5319
	Is the goal to have the AS2000 running NT after the swap
	and the AS4100 running UNIX?  If so, that's pretty easy.
	Move the system disk and boot from the generic kernel.
	Mount the local file systems and build a configuration
	specific kernel.  Edit /etc/rc.config as necessary if
	the name of the network adapter changed.  If you can
	manage to keep the system disk having the same name
	in the move between systems, you save yourself a little
	extra work.  If not, you need to be sure that the special
	files for the new system disk exist before the move.

	This sort of shuffle is very easy with UFS.  It may take
	a bit more work of changing links for AdvFS.  It may be
	even harder if LSM is involved.

	With a bootable system disk you can worry about the remaining
	storage.  If you keep all the device names the same, you just
	move the cables.  If the names change, it gets harder.