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Your A and B feeds (PDU-A, PDU-B) are fed from MGHPCC panels SWBD-U1A and SWBD-U1B respectively.</div>
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Your feeds are 400V 3P at the input and 233V 30A, L630 at the output.</div>
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Our upcoming maintenance will take down one feed at a time and at no point will both feeds be down.<br>
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<div id="divRplyFwdMsg" dir="ltr"><font face="Calibri, sans-serif" style="font-size:11pt" color="#000000"><b>From:</b> Frisco, Patrick <Patrick.Frisco@crowncastle.com><br>
<b>Sent:</b> Friday, March 8, 2024 5:37 PM<br>
<b>To:</b> mghpcc-alerts <mghpcc-alerts@mghpcc.org>; James Culbert <culbertj@mghpcc.org><br>
<b>Cc:</b> Crown Castle Fiber Change Management <FiberChangeMgmt@crowncastle.com>; Matthews, John <John.Matthews@crowncastle.com>; Coconato, Angela <Angela.Coconato@crowncastle.com>; Wooldridge, Michael <Michael.Wooldridge@crowncastle.com>; Buckley, Richard
<Richard.Buckley@crowncastle.com><br>
<b>Subject:</b> RE: [mghpcc-alerts] **Potentially Service-Affecting** Electrical Work Monday 3/18/24 – Thursday 3/21/24</font>
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<div class="PlainText">[You don't often get email from patrick.frisco@crowncastle.com. Learn why this is important at
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<br>
Hi MGHPCC Team,<br>
Can you provide details on the feed/panels supporting our rack as shown below?<br>
<br>
Crown is in the Entry room ER1 space Rack 11<br>
<br>
PDU-A w/30amp 208Vac<br>
PDU-B w/30amp 208Vac<br>
<br>
Crown CM Team, can you open a maintenance ticket on this event? We are dual corded.<br>
<br>
<br>
Regards,<br>
Patrick<br>
<br>
-----Original Message-----<br>
From: mghpcc-alerts <mghpcc-alerts@mghpcc.org><br>
Sent: Friday, March 8, 2024 5:22 PM<br>
To: mghpcc-alerts <mghpcc-alerts@mghpcc.org><br>
Subject: [mghpcc-alerts] **Potentially Service-Affecting** Electrical Work Monday 3/18/24 – Thursday 3/21/24<br>
<br>
[Some people who received this message don't often get email from mghpcc-alerts@mghpcc.org. Learn why this is important at
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<br>
CAUTION: This email originated from outside of the organization. Do not click links or open attachments unless you recognize the sender and know the content is safe.<br>
<br>
<br>
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.<br>
Pod R2-PA<br>
Pod R6-PA<br>
Pod R6-PB<br>
Pod R6-PC<br>
Pod R9-PA,<br>
Entrance Room 1<br>
Entrance Room 2<br>
<br>
Estimated Start: 8:00 AM Monday March 18, 2024 Estimated End: 5:00 PM Thursday March 21, 2024<br>
<br>
Tenant Impact<br>
--------------------<br>
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).<br>
<br>
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.<br>
<br>
Equipment outside the areas named above should not be affected, independent of configuration.<br>
<br>
There is elevated risk for the entire Computer Room while the work is being done.<br>
<br>
Description<br>
—————<br>
<br>
Schedule is expected to be:<br>
* Mon 3/18, after 8AM: Disable power to the A side bus bars in the areas named above<br>
* Tue 3/19, after the electrical work is done: Restore A side power.<br>
* Wed 3/ 20, after 8AM: Disable power to the B side bus bars in the areas named above.<br>
* Thu 3/21, after the electrical work is done: Restore B side power.<br>
This email may contain confidential or privileged material. Use or disclosure of it by anyone other than the recipient is unauthorized. If you are not an intended recipient, please delete this email.<br>
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