Start Date: March 23, 2012 (Friday)
Start Time: 20:00 (MDT)
Finish Date: March 26, 2012 (Monday)
Finish Time: 04:00 (MDT)

Purpose: An upstream network provider will be making changes to their core internet service infrastructure.

Customer Impact: Customer impact is expected to be limited to three minutes of high latency and less than one minute of packet loss due to BGP convergence when traffic is moved between redundant links.

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: March 2, 2012 (Friday)
Start Time: 20:00 (MST)
Finish Date: March 5, 2012 (Monday)
Finish Time: 04:00 (MST)

Purpose: Replace load-balancing hardware.

Customer Impact: ImageSilo engineers will be replacing one of the load-balancers in order to preemptively address a failing hard drive in the unit. As the units are fully redundant, 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

Start Date: January 20, 2012 (Friday)
Start Time: 20:00 (MST)
Finish Date: January 23, 2012 (Monday)
Finish Time: 04:00 (MST)

Purpose: Apply security updates and patches to multiple ImageSilo systems.

Customer Impact: ImageSilo engineers will be applying security updates and patches to a number of ImageSilo systems. Expected impact is approximately four periods of high latency (up to two minutes each) as domain authentication fails over to redundant hosts, a few FTP session interruptions (which should automatically re-connect if using Data Transfer Manager), and two periods of limited access/interruption (up to five minutes each) for database fail-overs.

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: December 2, 2011 (Friday)
Start Time: 20:00 (MST)
Finish Date: December 5, 2011 (Monday)
Finish Time: 04:00 (MST)

Purpose: ImageSilo Engineers will be performing general maintenance on load balancers, firewalls, and storage systems. Additionally, an upstream internet service provider will be upgrading core router software.

Customer Impact: The following activities will be performed during this maintenance:

• Maintenance on load balancers that will require multiple reboots: no customer impact is expected.
• Maintenance on firewalls that will require multiple reboots: customer impact is expected to be limited to two periods of short (less than one minute) network interuption.
• Maintenance on storage systems to modify mirroring configuration: no customer impact is expected.
• Upstream internet service provider upgrading core routers (Sunday): customer impact is expected to be limited to a two minute period of higher than usual latency.

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 1, 2011 (Saturday)
Start Time: 08:00 (MDT)
Finish Date: October 2, 2011 (Sunday)
Finish Time: 17:00 (MDT)

Purpose: Replace network equipment outside the ImageSilo network.

Customer Impact: ImageSilo engineers will be replacing switches and other networking equipment outside of the ImageSilo network. None of the changes are within the ImageSilo network and no customer impace 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

Start Date: September 16, 2011 (Friday)
Start Time: 20:00 (MDT)
Finish Date: September 17, 2011 (Saturday)
Finish Time: 20:00 (MDT)

Purpose: Changes to ImageSilo’s security infrastructure.

Customer Impact: ImageSilo engineers wil be making some minor setting changes to ImageSilo’s security infrastructure. 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

Start Date: August 26, 2011 (Friday)
Start Time: 20:00 (MDT)
Finish Date: August 29, 2011 (Monday)
Finish Time: 04:00 (MDT)

Purpose: Perform maintenance on storage systems.

Customer Impact: ImageSilo engineers will be performing maintenance on storage systems. Although no customer impact is expected, it is remotely possible that storage system respose times could be  longer than usual, resulting in slightly longer times to retrieve documents.

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: August 12, 2011 (Friday)
Start Time: 20:00 (MDT)
Finish Date: August 15, 2011 (Monday)
Finish Time: 04:00 (MDT)

Purpose: Update system firmware and change network configuration.

Customer Impact: ImageSilo engineers will be updating firmware on most systems within the ImageSilo network. The firmware update is not expected to impact customers. Additionally, engineers will be modifying network teaming on the database clusters. As such, two short (up to 2 minute) interuptions are expected as cluster members manually failover.

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: April 1, 2011 (Friday)
Start Time: 20:00 (MDT)
Finish Date: April 4, 2011 (Monday)
Finish Time: 04:00 (MDT)

Purpose: Disable TCP Chimney Offload on SQL database clusters.

Customer Impact: ImageSilo engineers have identified an issue relating to networking on the SQL database clusters and Microsoft’s implementation of TCP Chimney Offload. Although this issue has not impacted (nor is expected to impact) customers, we believe it would be most prudent to fully address it. After working with Microsoft engineers to identify the cause, both teams believe the next step would be to disable this feature in Microsoft’s network stack. Disabling TCP Chimney Offload will require reboots on all SQL database cluster members for the change to take effect. As such, customer impact is not expected to exceed two interuptions of less than five minutes each while failover occurs.

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: March 18, 2011 (Friday)
Start Time: 20:00 (MDT)
Finish Date: March 21, 2011 (Monday)
Finish Time: 04:00 (MDT)

Purpose: Upgrade firmware and reconfigure network interfaces on systems.

Customer Impact: ImageSilo engineers will be upgrading firmware and reconfiguring network interfaces on domain controllers, web servers, application servers, and database cluster servers. During the domain controller updates, it is expected that there may be up to four interuptions of up to two minutes each as authentication fails from one domain controller to another. During web and application server updates, no interuption is expected. During database cluster server updates, it is expected that there may be up to two interuptions of up to five minutes each as failovers occur (although experience has proven the failovers to be much faster).

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