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Conference 44.370::system_management

Title:system management communications forum
Moderator:CHEST::THOMPSON
Created:Fri Mar 21 1986
Last Modified:Thu Jul 08 1993
Last Successful Update:Fri Jun 06 1997
Number of topics:490
Total number of notes:2018

476.0. "Main Cluster hardware changes/upgrades." by HEWIE::RUSSELL (HAL -> IBM; VMS -> Windows/NT) Thu Jun 25 1992 17:55

As you know, we are about to upgrade the hardware of the main clusters.

This work will be performed during the day, and consists of the following

1)      FUTURS will be upgraded from 2 x 6420 to 1 x 6610 and 1 x 6420.

2)      CURRNT will be upgraded in two stages:
        i) from 1 x 6340 and 1 x 8700 to 1 x 6420 and 1 x 6340
        ii) to 1 x 6610 and 1 x 6420 (after the VMS V5.5-1 upgrade)

After the new hardware is commissioned and tested, one node will
be removed from the cluster, and the new hardware will then be
brought on-line.

PASTIT is not being altered.

There will be a minimal impact; people logged onto the node being removed
will have to log out, and the cluster will run on a single node for a
few minutes while the new hardware is plumbed in.

                                    
Advance notice of this will be given, to minimise any impacts.

We will be able to introduce the new hardware more quickly by doing this
than by relying on out-of-hours working.

Please contact me if you have any questions with the above.

 Peter.

For your info, here are the respective power ratings of the systems:

8700 - 6 vups
6340 - 15
6420 - 13
6610 - 32

So FUTURS is going from 26 to 45, and CURRNT is going from 21 to 45 vups.


                                           
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476.1Stage one complete....HEWIE::RUSSELLHAL -> IBM; VMS -> Windows/NTWed Jul 01 1992 10:126
FUTURS now consists of a 6000-610 and a 6000-420.

Please do not try to connect to a specific node; let the dynamic load
balancing do it's stuff...

Peter.
476.2Stage two at lunch time...HEWIE::RUSSELLHAL -> IBM; VMS -> Windows/NTMon Jul 06 1992 11:197
The 8700 will be replaced by a 6000-420, starting at 1:00 pm
today. Please log out of YARD before 1:00 pm, and do not 
any large batch jobs on YARD that may still be running at 1:00 
INCH will not be affected. YARD will return as a 6000-420.

                        Peter Russell                                                 
476.3Stage three...HEWIE::RUSSELLHAL -> IBM; VMS -> Windows/NTTue Jul 21 1992 18:038
INCH (the 6000-340) will be replaced with a 6000-610 on Thursday lunchtime.

Please log off when you go to lunch, and don't kick off any large batch jobs
on it. YARD will be up during all this time.

When it comes back, FUTURS and CURRNT will have the same horsepower.

Peter.