[Op1st-dc-alerts] [mghpcc-alerts] **Potentially Service-Affecting** Electrical Work Tuesday 4/23/24 and Wednesday 4/24/24

[Crown Castle Fiber Change Mgmt]

Good Afternoon,

May you please provide where the location of the maintenance will be performed along with ticket number.

Thank you!

Best Regards,

ALEXANDER CRUZ
Change Control Analyst
T: +1(508) 621-1888

CROWN CASTLE FIBER
3605 NW 82 Ave Miami, FL 33166
Fiber.CrownCastle.com

-----Original Message-----
From: mghpcc-alerts <mghpcc-alerts at mghpcc.org>
Sent: Sunday, April 14, 2024 7:50 AM
To: mghpcc-alerts <mghpcc-alerts at mghpcc.org>
Subject: [mghpcc-alerts] **Potentially Service-Affecting** Electrical Work Tuesday 4/23/24 and Wednesday 4/24/24


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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.
    R9-PC odd side
    R8-PC odd and even sides
    R7-PC odd and even sides

Estimated Start: 7:00 AM Tuesday 4/23/24 Estimated End:  5:00 PM Wednesday 4/24/24

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 4/23,  after 7AM: Disable power to the A side bus bars in the areas named above
* Tue 4/23,  after the electrical work is done: Restore A side power.
* Wed 4/24, after 7 AM: Disable power to the B side bus bars in the areas named above.
* Wed 4/24, after the electrical work is done: Restore B side power.
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