[Op1st-dc-alerts] [mghpcc-alerts] Update re: **Potentially Service-Affecting** Electrical Work Tuesday 7/23/24 – Friday 7/26/24

[mghpcc-alerts]

The work scheduled for Tuesday and Wednesday of this week has been completed.

The next phase of the electrical work, described in the alert below, will start Thursday morning, 7/25/24, at 7AM.


======== July 18 Alert ======

Notice of plan to power down the switchboards that feed power to the following areas of the MGHPCC data center to allow electrical work in the computer room.
    Pod R2-PA – UPS-backed racks only
    Pod R6-PA
    Pod R6-PB
    Pod R6-PC
    Pod R9-PA
    Tape Library
    Entrance Room 1
    Entrance Room 2

Estimated Start: 7 AM Tuesday 7/23/24
Estimated End:  3 PM Friday     7/26/24

Tenant Impact
--------------------
There may be brief periods of time when we will ask everyone to leave the Computer Room for safety (e.g. when a switchboard is being powered up).

Computing, Storage, and Networking equipment in the areas named above should not be affected if it has been properly configured for operation with power cords attached to both the “A” and “B” PDUs in its rack.

Equipment outside the areas named above should not be affected, independent of configuration.

There is elevated risk for the entire Computer Room while the work is being done.

Description
—————

Schedule is expected to be:
* Tue  7/23 after 7AM: Disable power to the A side bus bars in the areas named above
* Wed 7/24 after the electrical work is done: Restore A side power.
* Thu  7/25, after 7AM: Disable power to the B side bus bars in the areas named above.
** Fri    7/26, after the electrical work is done: Restore B side power.
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