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Adhost Blog

Fisher Plaza East Power Maintenance

Date:     07/20/2009
Start Time: 12:01 AM PDT
End Time:    4:45 AM PDT
Customer Impact: None Anticipated

Description:

Fisher Engineers will be performing maintenance on the power systems supporting the Adhost East Data Center.  This maintenance is addressing an issue we are having with the redundant generator set powering the Fisher East building.  During this window, the three central electrical risers will, one at a time, be powered off and re-engergized a short time later.

We do not anticipate that there will be any interruption to the electrical service to the Adhost East Data Center during this window.  Adhost and its vendors have reviewed the potential impact to our operations of this procedure.  The electrical systems that service the Adhost East Data Center technical loads will be able to transfer from one riser to the other in an uninterrupted fashion.  Because our mechanical systems (AC) are tied into the risers differently, we will have reduced cooling capacity for two intervals during the window, up to 30 minutes each.  We anticipate that there may be brief periods where temperatures in the data center may increase, but we do not expect to reach temperature levels that will impact server performance. We will be fully staffed during this window to monitor all environmental systems and respond to any issues that may arise.

If you would like to be on site during the maintenance window, please arrive at the Adhost facility no later than 11:30 PM on Sunday, July 19th.  During the maintenance window access to the building will be restricted, so anyone arriving after 11:30 may not be granted access into the facility until the end of the maintenance window.

Adhost has been working with Fisher Engineering to develop a plan for restoring redundant, city-fed power to Plaza East.  If you would like to see an outline of the plan, please visit http://www.adhost.com/blog.

Thank you for your patience and understanding during this event.  If you have any questions or concerns please contact our Technical Support Department at (206) 404-9500 or support@adhost.com.

Regards,

Michael Smith

–
Michael K. Smith – CISSP, GISP
Chief Technical Officer – Adhost Internet LLC mksmith@adhost.com
w: +1 (206) 404-9500 f: +1 (206) 404-9050
PGP: B49A DDF5 8611 27F3  08B9 84BB E61E 38C0 (Key ID: 0×9A96777D)