Winter Quarter Break Downtime Schedule for AIX

During Winter Break 1993, Information Systems Personnel will be 
upgrading the operating system on the AIX RISC Cluster from AIX 3.2.2 to 
AIX 3.2.5.  Because of the size and complexity of this upgrade, the 
following is a TENTATIVE downtime schedule for Winter Break as follows:

Tuesday December 14 at 5:00 PM, ALL AIX Sites unavailable for end-of-
	quarter archives.

Wednesday December 15 at 2:00 PM, All AIX Sites EXCEPT harp becomes 
	available.

Thursday December 16 at 9:00 AM, oboe becomes unavailable (NOTE:  All 
	mail becomes unavailable when oboe is unavailable, incoming mail 
	should not be a problem as oboe will only be unavailable a 
	little over one day.  All gopher and CPNN data items are also 
	unavailable when oboe is unavailable).

Thursday December 16 at 11:00 AM, harp becomes available again.

Friday December 17 at 9:00 AM, trumpet and flute become unavailable 
	(departmental libraries are unavailable when flute is 
	unavailable and /usr/local/bin are unavailable when trumpet is 
	unavailable).  While these sites are down, many programs will be 
	unavailable to the rest of the cluster including PINE, Elm, and 
	gopher among others.

Friday December 17th at 11:00 AM, oboe becomes available and mail, 
	gopher, and cpnn items are available again.

Saturday December 18th at 9:00 AM, cymbal and tuba become unavailable.

Saturday December 18th at 11:00 AM, trumpet and flute become available 
	and departmental libraries and /usr/local/bin are available 
	again.  All locally installed software should be available 
	again.

Sunday December 19th at 8:00 AM, ALL AIX Sites unavailable.

Sunday December 19th at 12:00 Noon, ALL AIX Sites are available again.

NOTES ON DOWNTIME:

1.	This is our first experience with a major RISC/System 6000 
	Operating System Software upgrade.  The impact on applications 
	software should be limited, but the key words are “should be 
	limited”.  If you find that any of the applications that ran 
	unaltered before the upgrade do not run unaltered after the 
	upgrade, please let us know.  If the application is one of your 
	own, try recompiling before notifying us.

2.	If there are any unexpected problems, it may be possible for one 
	or more RISC sites to be down longer than anticipated.

3.	Between December 15 and December 22, there may be intermittent 
	unscheduled down-times, at short notices, beyond the scheduled 
	times above.

4.	The AIX/370 site “zeus” will remain up during this time except 
	when unforeseen events require it being brought down.  NETNews 
	should be unaffected by the overall downtimes.

5.	While your home site is down, your files are unavailable to you.

If you have any further questions, please contact Academic Computing 
Services in CSc Building 14 Room 115 or call 756-6543.