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<span style="font-family: Arial, sans-serif; font-size: 10pt; color: rgb(0, 0, 0);">The first of the two tasks schedule for 4/24-4/26 have been completed, but some </span></p>
<p class="elementToProof" style="text-align: left; text-indent: 0px; margin: 0in;">
<span style="font-family: Arial, sans-serif; font-size: 10pt; color: rgb(0, 0, 0);">work remains on the second task, which we have scheduled for Tuesday April 30.</span></p>
<p style="text-align: left; text-indent: 0px; margin: 0in;"><span style="font-family: Arial, sans-serif; font-size: 10pt; color: rgb(0, 0, 0);"> </span></p>
<p style="text-align: left; text-indent: 0px; margin: 0in;"><span style="font-family: Arial, sans-serif; font-size: 10pt; color: rgb(0, 0, 0);">Estimated Start: 7:00 AM Tuesday 4/30/24</span></p>
<p style="text-align: left; text-indent: 0px; margin: 0in;"><span style="font-family: Arial, sans-serif; font-size: 10pt; color: rgb(0, 0, 0);">Estimated End: 5:00 PM Tuesday 4/30/24</span></p>
<p style="text-align: left; text-indent: 0px; margin: 0in;"><span style="font-family: Arial, sans-serif; font-size: 10pt; color: rgb(0, 0, 0);"> </span></p>
<p style="text-align: left; text-indent: 0px; margin: 0in;"><span style="font-family: Arial, sans-serif; font-size: 10pt; color: rgb(0, 0, 0);">Pod rows affected:<br>
R3-PA </span><span style="font-family: Aptos, sans-serif; font-size: 12pt; color: black;">odd and even sides, “A” bus bars only</span></p>
<p style="text-align: left; text-indent: 0px; margin: 0in 0in 0in 13.5pt;"><span style="font-family: Arial, sans-serif; font-size: 10pt; color: rgb(0, 0, 0);">R4-PA
</span><span style="font-family: Aptos, sans-serif; font-size: 12pt; color: black;">odd and even sides ,“A” bus bars only</span></p>
<p style="text-align: left; text-indent: 0px; margin: 0in 0in 0in 13.5pt;"><span style="font-family: Arial, sans-serif; font-size: 10pt; color: rgb(0, 0, 0);">R5-PA
</span><span style="font-family: Aptos, sans-serif; font-size: 12pt; color: black;">odd and even sides, “A” bus bars only</span></p>
<p style="text-align: left; text-indent: 0px; margin: 0in 0in 0in 13.5pt;"><span style="font-family: Arial, sans-serif; font-size: 10pt; color: rgb(0, 0, 0);">R8-PA
</span><span style="font-family: Aptos, sans-serif; font-size: 12pt; color: black;">odd and even sides, “A” and “B” Bus bars</span></p>
<p style="text-align: left; text-indent: 0px; margin: 0in;"><span style="font-family: Arial, sans-serif; font-size: 10pt; color: rgb(0, 0, 0);"> </span></p>
<p style="text-align: left; text-indent: 0px; margin: 0in;"><span style="font-family: Arial, sans-serif; font-size: 10pt; color: rgb(0, 0, 0);">Tenant Impact<br>
--------------------</span></p>
<p class="elementToProof" style="text-align: left; text-indent: 0px; margin: 0in;">
<span style="font-family: Arial, sans-serif; font-size: 10pt; color: rgb(0, 0, 0);">There may be brief periods of time when we will ask everyone to leave the </span></p>
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<span style="font-family: Arial, sans-serif; font-size: 10pt; color: rgb(0, 0, 0);">Computer Room for safety (e.g. when a switchboard is being powered up).</span></p>
<p style="text-align: left; text-indent: 0px; margin: 0in;"><span style="font-family: Arial, sans-serif; font-size: 10pt; color: rgb(0, 0, 0);"> </span></p>
<p class="elementToProof" style="text-align: left; text-indent: 0px; margin: 0in;">
<span style="font-family: Arial, sans-serif; font-size: 10pt; color: rgb(0, 0, 0);">Computing, Storage, and Networking equipment in the areas named above should </span></p>
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<span style="font-family: Arial, sans-serif; font-size: 10pt; color: rgb(0, 0, 0);">not be affected if it has been properly configured for operation with power cords </span></p>
<p class="elementToProof" style="text-align: left; text-indent: 0px; margin: 0in;">
<span style="font-family: Arial, sans-serif; font-size: 10pt; color: rgb(0, 0, 0);">attached to both the “A” and “B” PDUs in its rack.</span></p>
<p style="text-align: left; text-indent: 0px; margin: 0in;"><span style="font-family: Arial, sans-serif; font-size: 10pt; color: rgb(0, 0, 0);"> </span></p>
<p style="text-align: left; text-indent: 0px; margin: 0in;"><span style="font-family: Arial, sans-serif; font-size: 10pt; color: rgb(0, 0, 0);">Equipment outside the areas named above should not be affected, independent of configuration.</span></p>
<p style="text-align: left; text-indent: 0px; margin: 0in;"><span style="font-family: Arial, sans-serif; font-size: 10pt; color: rgb(0, 0, 0);"> </span></p>
<p style="text-align: left; text-indent: 0px; margin: 0in;"><span style="font-family: Arial, sans-serif; font-size: 10pt; color: rgb(0, 0, 0);">There is elevated risk for the entire Computer Room while the work is being done.</span></p>
<p style="text-align: left; text-indent: 0px; margin: 0in;"><span style="font-family: Arial, sans-serif; font-size: 10pt; color: rgb(0, 0, 0);"> </span></p>
<p style="text-align: left; text-indent: 0px; margin: 0in;"><span style="font-family: Arial, sans-serif; font-size: 10pt; color: rgb(0, 0, 0);">Description<br>
—————</span></p>
<p style="text-align: left; text-indent: 0px; margin: 0in;"><span style="font-family: Arial, sans-serif; font-size: 10pt; color: rgb(0, 0, 0);">Sequence of Operations will be</span></p>
<p style="text-align: left; text-indent: 0px; margin: 0in;"><span style="font-family: Arial, sans-serif; font-size: 10pt; color: rgb(0, 0, 0);">* After 7AM: Disable power to the A side bus bars in all of the areas named above</span></p>
<p style="text-align: left; text-indent: 0px; margin: 0in;"><span style="font-family: Arial, sans-serif; font-size: 10pt; color: rgb(0, 0, 0);">* Perform circuit breaker tests on the Switchboard that feeds the areas named abov</span></p>
<p style="text-align: left; text-indent: 0px; margin: 0in;"><span style="font-family: Arial, sans-serif; font-size: 10pt; color: rgb(0, 0, 0);">* Add bus plugs pod 8A</span></p>
<p style="text-align: left; text-indent: 0px; margin: 0in;"><span style="font-family: Arial, sans-serif; font-size: 10pt; color: rgb(0, 0, 0);">* Restore power to the areas named above</span></p>
<p style="text-align: left; text-indent: 0px; margin: 0in;"><span style="font-family: Arial, sans-serif; font-size: 10pt; color: rgb(0, 0, 0);">* Disable power to the B side bus bars in Pod 8A only</span></p>
<p style="text-align: left; text-indent: 0px; margin: 0in;"><span style="font-family: Arial, sans-serif; font-size: 10pt; color: rgb(0, 0, 0);">* Add bus plugs to pod 8A</span></p>
<p style="text-align: left; text-indent: 0px; margin: 0in;"><span style="font-family: Arial, sans-serif; font-size: 10pt; color: rgb(0, 0, 0);">* Restore power to the B side bus bars in Pod 8A</span></p>
<p style="text-align: left; text-indent: 0px; margin: 0in;"><span style="font-family: Arial, sans-serif; font-size: 10pt; color: rgb(0, 0, 0);"><b> </b></span></p>
<p style="text-align: left; text-indent: 0px; margin: 0in;"><span style="font-family: Arial, sans-serif; font-size: 10pt; color: rgb(0, 0, 0);"> </span></p>
<p style="text-align: left; text-indent: 0px; margin: 0in;"><span style="font-family: Arial, sans-serif; font-size: 10pt; color: rgb(0, 0, 0);">==============Prior Alert==============</span></p>
<p style="text-align: left; text-indent: 0px; margin: 0in;"><span style="font-family: Arial, sans-serif; font-size: 10pt; color: rgb(0, 0, 0);"> </span></p>
<p class="elementToProof" style="text-align: left; text-indent: 0px; margin: 0in;">
<span style="font-family: Arial, sans-serif; font-size: 10pt; color: rgb(0, 0, 0);">A reminder that there will be work done on two sets of computer room </span></p>
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<span style="font-family: Arial, sans-serif; font-size: 10pt; color: rgb(0, 0, 0);">switchboards in the MGHPCC computer room this week:</span></p>
<p style="text-align: left; text-indent: 0px; margin: 0in;"><span style="font-family: Arial, sans-serif; font-size: 10pt; color: rgb(0, 0, 0);"> </span></p>
<p style="text-align: left; text-indent: 0px; margin: 0in;"><span style="font-family: Arial, sans-serif; font-size: 10pt; color: rgb(0, 0, 0);">Estimated Start: 7:00 AM Wednesday 4/24/24</span></p>
<p style="text-align: left; text-indent: 0px; margin: 0in;"><span style="font-family: Arial, sans-serif; font-size: 10pt; color: rgb(0, 0, 0);">Estimated End: 5:00 PM Friday 4/26/24<br>
<br>
</span></p>
<p style="text-align: left; text-indent: 0px; margin: 0in;"><span style="font-family: Arial, sans-serif; font-size: 10pt; color: rgb(0, 0, 0);">Task 1 -- Work planned for 4/24 and 4/25</span></p>
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<span style="font-family: Arial, sans-serif; font-size: 10pt; color: rgb(0, 0, 0);">Plan to power down the switchboards that feed power to the following areas</span></p>
<p class="elementToProof" style="text-align: left; text-indent: 0px; margin: 0in;">
<span style="font-family: Arial, sans-serif; font-size: 10pt; color: rgb(0, 0, 0);"> of the MGHPCC data center to allow electrical work in the computer room. </span></p>
<p class="elementToProof" style="text-align: left; text-indent: 0px; margin: 0in;">
<span style="font-family: Arial, sans-serif; font-size: 10pt; color: rgb(0, 0, 0);">Detailed schedule in the Description section below.</span></p>
<p style="text-align: left; text-indent: 0px; margin: 0in;"><span style="font-family: Arial, sans-serif; font-size: 10pt; color: rgb(0, 0, 0);"> </span><span style="font-family: Aptos, sans-serif; font-size: 12pt; color: black;">R9-PC odd side</span></p>
<p style="text-align: left; text-indent: 0px; margin: 0in;"><span style="font-family: Aptos, sans-serif; font-size: 12pt; color: black;"> R8-PC odd and even sides</span></p>
<p style="text-align: left; text-indent: 0px; margin: 0in;"><span style="font-family: Aptos, sans-serif; font-size: 12pt; color: black;"> R7-PC odd and even sides </span></p>
<p style="text-align: left; text-indent: 0px; margin: 0in;"><span style="font-family: Aptos, sans-serif; font-size: 12pt; color: black;"> </span></p>
<p style="text-align: left; text-indent: 0px; margin: 0in;"><span style="font-family: Arial, sans-serif; font-size: 10pt; color: rgb(0, 0, 0);">Task 2 - Work planned for 4/25 and 4/26</span></p>
<p class="elementToProof" style="text-align: left; text-indent: 0px; margin: 0in;">
<span style="font-family: Arial, sans-serif; font-size: 10pt; color: rgb(0, 0, 0);">Plan to power down the switchboards that feed power to the following areas of the </span></p>
<p class="elementToProof" style="text-align: left; text-indent: 0px; margin: 0in;">
<span style="font-family: Arial, sans-serif; font-size: 10pt; color: rgb(0, 0, 0);">MGHPCC data center to allow electrical work in the computer room. </span></p>
<p class="elementToProof" style="text-align: left; text-indent: 0px; margin: 0in;">
<span style="font-family: Arial, sans-serif; font-size: 10pt; color: rgb(0, 0, 0);">Detailed schedule in the Description section below.</span></p>
<p style="text-align: left; text-indent: 0px; margin: 0in 0in 0in 13.5pt;"><span style="font-family: Arial, sans-serif; font-size: 10pt; color: rgb(0, 0, 0);">R3-PA
</span><span style="font-family: Aptos, sans-serif; font-size: 12pt; color: black;">odd and even sides</span></p>
<p style="text-align: left; text-indent: 0px; margin: 0in 0in 0in 13.5pt;"><span style="font-family: Arial, sans-serif; font-size: 10pt; color: rgb(0, 0, 0);">R4-PA
</span><span style="font-family: Aptos, sans-serif; font-size: 12pt; color: black;">odd and even sides</span></p>
<p style="text-align: left; text-indent: 0px; margin: 0in 0in 0in 13.5pt;"><span style="font-family: Arial, sans-serif; font-size: 10pt; color: rgb(0, 0, 0);">R5-PA
</span><span style="font-family: Aptos, sans-serif; font-size: 12pt; color: black;">odd and even sides</span></p>
<p style="text-align: left; text-indent: 0px; margin: 0in 0in 0in 13.5pt;"><span style="font-family: Arial, sans-serif; font-size: 10pt; color: rgb(0, 0, 0);">R8-PA
</span><span style="font-family: Aptos, sans-serif; font-size: 12pt; color: black;">odd and even sides</span></p>
<p style="text-align: left; text-indent: 0px; margin: 0in;"><span style="font-family: Arial, sans-serif; font-size: 10pt; color: rgb(0, 0, 0);"><br>
Tenant Impact<br>
--------------------</span></p>
<p class="elementToProof" style="text-align: left; text-indent: 0px; margin: 0in;">
<span style="font-family: Arial, sans-serif; font-size: 10pt; color: rgb(0, 0, 0);">There may be brief periods of time when we will ask everyone to leave </span></p>
<p class="elementToProof" style="text-align: left; text-indent: 0px; margin: 0in;">
<span style="font-family: Arial, sans-serif; font-size: 10pt; color: rgb(0, 0, 0);">the Computer Room for safety (e.g. when a switchboard is being powered up).</span></p>
<p style="text-align: left; text-indent: 0px; margin: 0in;"><span style="font-family: Arial, sans-serif; font-size: 10pt; color: rgb(0, 0, 0);"> </span></p>
<p class="elementToProof" style="text-align: left; text-indent: 0px; margin: 0in;">
<span style="font-family: Arial, sans-serif; font-size: 10pt; color: rgb(0, 0, 0);">Computing, Storage, and Networking equipment in the areas named above should </span></p>
<p class="elementToProof" style="text-align: left; text-indent: 0px; margin: 0in;">
<span style="font-family: Arial, sans-serif; font-size: 10pt; color: rgb(0, 0, 0);">not be affected if it has been properly configured for operation with power cords </span></p>
<p class="elementToProof" style="text-align: left; text-indent: 0px; margin: 0in;">
<span style="font-family: Arial, sans-serif; font-size: 10pt; color: rgb(0, 0, 0);">attached to both the “A” and “B” PDUs in its rack.</span></p>
<p style="text-align: left; text-indent: 0px; margin: 0in;"><span style="font-family: Arial, sans-serif; font-size: 10pt; color: rgb(0, 0, 0);"> </span></p>
<p style="text-align: left; text-indent: 0px; margin: 0in;"><span style="font-family: Arial, sans-serif; font-size: 10pt; color: rgb(0, 0, 0);">Equipment outside the areas named above should not be affected, independent of configuration.</span></p>
<p style="text-align: left; text-indent: 0px; margin: 0in;"><span style="font-family: Arial, sans-serif; font-size: 10pt; color: rgb(0, 0, 0);"> </span></p>
<p style="text-align: left; text-indent: 0px; margin: 0in;"><span style="font-family: Arial, sans-serif; font-size: 10pt; color: rgb(0, 0, 0);">There is elevated risk for the entire Computer Room while the work is being done.</span></p>
<p style="text-align: left; text-indent: 0px; margin: 0in;"><span style="font-family: Arial, sans-serif; font-size: 10pt; color: rgb(0, 0, 0);"><br>
Description<br>
—————</span></p>
<p style="text-align: left; text-indent: 0px; margin: 0in;"><span style="font-family: Arial, sans-serif; font-size: 10pt; color: rgb(0, 0, 0);">Task 1 Schedule is expected to be:</span></p>
<p style="text-align: left; text-indent: 0px; margin: 0in;"><span style="font-family: Arial, sans-serif; font-size: 10pt; color: rgb(0, 0, 0);">* Wed 4/24, after 7AM: Disable power to the A side bus bars in the areas named above</span></p>
<p style="text-align: left; text-indent: 0px; margin: 0in;"><span style="font-family: Arial, sans-serif; font-size: 10pt; color: rgb(0, 0, 0);">* Wed 4/24, after the electrical work is done: Restore A side power.</span></p>
<p style="text-align: left; text-indent: 0px; margin: 0in;"><span style="font-family: Arial, sans-serif; font-size: 10pt; color: rgb(0, 0, 0);">* Thu 4/25, after 7 AM: Disable power to the B side bus bars in the areas named above.</span></p>
<p style="text-align: left; text-indent: 0px; margin: 0in;"><span style="font-family: Arial, sans-serif; font-size: 10pt; color: rgb(0, 0, 0);">* Thu 4/25, after the electrical work is done: Restore B side power.</span></p>
<p style="text-align: left; text-indent: 0px; margin: 0in;"><span style="font-family: Arial, sans-serif; font-size: 10pt; color: rgb(0, 0, 0);"> </span></p>
<p style="text-align: left; text-indent: 0px; margin: 0in;"><span style="font-family: Arial, sans-serif; font-size: 10pt; color: rgb(0, 0, 0);">Task 2 Schedule is expected to be:</span></p>
<p style="text-align: left; text-indent: 0px; margin: 0in;"><span style="font-family: Arial, sans-serif; font-size: 10pt; color: rgb(0, 0, 0);">* Thu 4/25, after 7AM: Disable power to the A side bus bars in the areas named above</span></p>
<p style="text-align: left; text-indent: 0px; margin: 0in;"><span style="font-family: Arial, sans-serif; font-size: 10pt; color: rgb(0, 0, 0);">* Thu 4/25, after the electrical work is done: Restore A side power.</span></p>
<p style="text-align: left; text-indent: 0px; margin: 0in;"><span style="font-family: Arial, sans-serif; font-size: 10pt; color: rgb(0, 0, 0);">* Fri 4/26, after 7 AM: Disable power to the B side bus bars in the areas named above.</span></p>
<p style="text-align: left; text-indent: 0px; margin: 0in;"><span style="font-family: Arial, sans-serif; font-size: 10pt; color: rgb(0, 0, 0);">* Fri 4/26, after the electrical work is done: Restore B side power.</span></p>
<p style="text-align: left; text-indent: 0px; margin: 0in;"><span style="font-family: Arial, sans-serif; font-size: 10pt; color: rgb(0, 0, 0);"> </span></p>
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