Start Date: January 28, 2011 (Friday)
Start Time: 20:00 (MST)
Finish Date: January 31, 2011(Monday)
Finish Time: 04:00 (MST)

Purpose: ImageSilo engineers will transition customer databases from current database clusters to new database clusters.

Customer Impact: ImageSilo engineers will continue the process of transitioning data from the current database clusters to the new clusters with new back-end storage arrays. We will continue the process of transitioning those customers who have subscribed to the Data Delivery service (those with dedicated databases), followed by non-Data Delivery customers in shared databases. Customer impact is not expected to exceed 60 minutes for any specific entity as their accessibility will only be impacted during the transition of the specific database in which their data lives. The length of time impacted is dictated by the size of that database. In other words, smaller databases will be impacted much less (i.e. less than 5 minutes) than very large databases. 

Questions/Comments: Please feel free to contact ImageSilo Administration with any questions or comments.
866.374.3569 (303.493.6900)
siloadmin@imagesilo.com

Start Date: January 27, 2011 (Thursday)
Start Time: 20:00 (MST)
Finish Date: January 28, 2011(Friday)
Finish Time: 04:00 (MST)

Purpose: ImageSilo engineers will transition customer databases from current database clusters to new database clusters.

Customer Impact: ImageSilo engineers will continue the process of transitioning data from the current database clusters to the new clusters with new back-end storage arrays. Customers who have subscribed to the Data Delivery service (those with dedicated databases) will be transitioned first. Customer impact is not expected to exceed 60 minutes for any specific entity as their accessibility will only be impacted during the transition of the specific database in which their data lives. The length of time impacted is dictated by the size of that database. In other words, smaller databases will be impacted much less (i.e. less than 5 minutes) than very large databases. 

Questions/Comments: Please feel free to contact ImageSilo Administration with any questions or comments.
866.374.3569 (303.493.6900)
siloadmin@imagesilo.com

Start Date: January 24, 2011 (Monday)
Start Time: 20:00 (MST)
Finish Date: January 25, 2011(Tuesday)
Finish Time: 04:00 (MST)

Purpose: ImageSilo engineers will transition test databases from current database clusters to new database clusters.

Customer Impact: ImageSilo engineers will begin the process of transitioning data from the current database clusters to the new clusters with new back-end storage arrays. This maintenace will be to test the process using test databases. No customer impact is expected. Future maintenance notifications will be sent prior to live customer databases moves in the future.

Questions/Comments: Please feel free to contact ImageSilo Administration with any questions or comments.
866.374.3569 (303.493.6900)
siloadmin@imagesilo.com

Start Date: November 19, 2010 (Friday)
Start Time: 20:00 (MST)
Finish Date: November 22, 2010 (Monday)
Finish Time: 04:00 (MST)

Purpose: Complete ImageSilo’s 2010 server infrastructure upgrade.

Customer Impact: ImageSilo engineers will be completing the server infrastructure upgrade (which has replaced nearly every server in ImageSilo’s network). This final step will require physically moving the network switching components and some servers. The redundant nature of the network architecture coupled with extensive use of NIC teaming should minimize and customer impact. However, there will be necessary cluster failovers on load balancers, firewalls, and database clusters. Most of these failovers (specifically for load balancers and firewalls) typically cause minimal cause very short (less than 5 seconds) periods of increased latency. Database cluster failovers are expected to cause brief periods (expected to be less than 2 minutes) of service impact.

Questions/Comments: Please feel free to contact ImageSilo Administration with any questions or comments.
866.374.3569 (303.493.6900)
siloadmin@imagesilo.com

Start Date: November 18, 2010 (Thursday)
Start Time: 22:00 (MST)
Finish Date: November 19, 2010 (Friday)
Finish Time: 05:00 (MST)

Purpose: An upstream network provider must depeer a redundant ISP connection on a local internet router to reduce the service effect of carrier vendor maintenance.

Customer Impact: Some customers may experience minor latency while traffic converges during the maintenance period.

Questions/Comments: Please feel free to contact ImageSilo Administration with any questions or comments.
866.374.3569 (303.493.6900)
siloadmin@imagesilo.com

Start Date: November 5, 2010 (Friday)
Start Time: 20:00 (MDT)
Finish Date: November 8, 2010 (Monday)
Finish Time: 04:00 (MDT)

Purpose: Complete decommissioning process for old Active Directory domain controllers.

Customer Impact: ImageSilo engineers will be restarting the old domain controllers (the ones that were shut down during the previous maintenance) in order to demote them from the domains entirely and then shut them down for good. This marks the final stage of the process for transitioning from the old domain controllers to the new ones. There is a slight chance that some servers could select one of these old domain controllers for authentication affinity during the brief period that each is active while it is being demoted. If that happens, each demotion could cause a brief period (less than 30 seconds) of system non-responsiveness/slowdown while the affected system waits for the timeout before selecting another domain controller.  

Questions/Comments: Please feel free to contact ImageSilo Administration with any questions or comments.
866.374.3569 (303.493.6900)
siloadmin@imagesilo.com

Start Date: October 29, 2010 (Friday)
Start Time: 20:00 (MDT)
Finish Date: November 1, 2010 (Monday)
Finish Time: 04:00 (MDT)

Purpose: Infrastructure changes to further complete server transitioning.

Customer Impact: ImageSilo engineers will be shutting down and beginning the decommissioning process for the old Active Directory domain controllers as the new replacement units have been installed and burned in successfully. This is expected to result in a few brief periods (approximately 30 seconds) of system non-responsiveness/slowdown as the database clusters and web servers determine their new DC affinity for authentication requests. Database cluster failovers will be manually performed to ensure authentication is operating properly. The cluster failovers are expected to result in a couple of brief periods (up to 30 seconds) of system non-responsiveness/slowdown. Finally, firewall changes will be made that require reboots of the firewalls. As these are clustered and configured in a manner in which failovers happen nearly instantaneously, no customer impact is expected for that operation.

Questions/Comments: Please feel free to contact ImageSilo Administration with any questions or comments.
866.374.3569 (303.493.6900)
siloadmin@imagesilo.com

Start Date: October 21, 2010 (Thursday)
Start Time: 20:00 (MDT)
Finish Date: October 22, 2010 (Friday)
Finish Time: 04:00 (MDT)

Purpose: Transfer FSMO roles to new domain controllers.

Customer Impact: ImageSilo engineers will transfer the FSMO roles to the new Active Directory domain controllers installed and promoted in previous maintenance windows. No customer impact is expected.

Questions/Comments: Please feel free to contact ImageSilo Administration with any questions or comments.
866.374.3569 (303.493.6900)
siloadmin@imagesilo.com