[236] in Release_7.7_team

home help back first fref pref prev next nref lref last post

Space for new packs in the athena cell

daemon@ATHENA.MIT.EDU (salemme@MIT.EDU)
Tue Jan 3 12:36:07 1995

From: salemme@MIT.EDU
Date: Tue, 3 Jan 95 12:35:59 -0500
To: afsreq@MIT.EDU
Cc: release-77@MIT.EDU

If the release stays on schedule, we'll need to put some new packs into
the athena cell for the "early" test phase which is currently scheduled to
start on January 10. (The field release is scheduled for Jan 31.) I know
this is a huge request for space, but if possible here's what I'd like:

	Jan 8-9: vos dump the srvd.77 volumes from the dev cell to the
			athena cell, and add two ROs for each (one on
			the same partition as the RW, one on another
			server in another machine room or on another
			subnet)

		Current approximate sizes:
			decmips		283 Mb
			rsaix		156 Mb
			sun4		382 Mb

		So, the RWs and the ROs will take up about 1.7Gb of space,
		distributed over six different servers.

	Jan 10: the "early" clusters start using the packs in the athena cell

	Jan 10-27: possible changes to the packs in the athena cell

	Jan 28: "freeze" packs in the athena cell, and add sufficient ROs
		for production packs

	Jan 31: the "public" and other production clusters start using the
		packs


Notes for afsreqqies:
	- I've always tried to distribute srvd volumes across servers and
	  machine rooms such that there is at most one current srvd volume
	  on any server (that is, we don't want two, big "popular" srvd volumes
	  on the same server).

	- dumping from the dev cell to the athena cell, we need to give the
	  new volumes names that distinguish them from the current ones.
	  I suggest the new ones get names in the athena cell like:
		system.{platform}.srvd.77jan

	- at some point some of the older RO sites can be deleted from disk

	- I'd be happy to work with an afsreq person on doing this...otherwise,
	  just let me know if you have any questions.

Thanks!
				Anne

home help back first fref pref prev next nref lref last post