Billy Sneed

Posts by Billy Sneed

 
 
 

ITS system and network maintenance plans over the 2014 Holiday Break

Categories: Midd Blogosphere

Dear Colleagues,

 

Every year we take a brief period during the Holiday Break to perform needed maintenance and upgrade of our infrastructure and core systems. Below is a description of what we are planning for December 20th,21st, 22nd and 23rd, and how it may impact you.

 

  • Exchange email environment will be upgraded from version 2010 to 2013
  • The new 2013 cluster is already built and integrated together with our 2010 cluster.
  • We will migrate student mailboxes beginning Wednesday, Dec 17th through Friday, Dec 19th. Faculty & Staff mailboxes will migrate beginning Saturday, December 20th through Sunday, December 21st.
  • Once all of the Outlook accounts have been migrated, you will see two or more restart messages. If you have access to multiple mailboxes, you will see more restart messages. Except for that, we do not anticipate any other impact for you.
  • The interface for webmail will be changed, with an updated design that is reflective of the Outlook 2013 interface.
  • We have identified an issue that relates to the existence of both Exchange 2013 and Exchange 2010 servers that affected relatively small percentage of mailboxes, however many of them belonging to Faculty.  These mailboxes were not accessible for much of Monday, Dec 16th, to resolve this problem, these mailboxes have been migrated to Exchange 2013 ahead of schedule.  Our sincere apologies for the inconvenience this cause these individuals during this transition.

 

  • PaperCut printing management service will be upgraded on Sunday, Dec 21st between 8 am and Noon. There will be several short printing service interruptions during this window.

 

  • Wireless Infrastructure Upgrade on Monday, Dec 22nd between 9 and 11 am.

o   During this upgrade all wireless access points on campus will be rebooted, resulting in up to 15 minutes of wireless connectivity downtime throughout the campus, Bread Loaf and the Snowbowl.

 

  • Middlebury core network routing changes on Tuesday, Dec 23rd

o   We will be adjusting parts of our core network and routing between 8 AM and Noon. There will be 30-45 minutes of network service interruptions to McCardell Bicentennial Hall and separately, 30-45 minutes of network service interruption to residence halls on the North side of campus.

 

  • Internet related outages – starting at 2pm on Tuesday, Dec 23rd

o   Beginning at 2pm, we will be testing Internet and network component failover procedures. We expect there will be 3 to 5 interruptions of Internet connectivity to and from the Middlebury network, each lasting about 5 minutes.

 

Thank you for your patience and support as we perform these necessary upgrades,

 

Billy Sneed

ITS – Central Systems & Network Services

Middlebury College

Middlebury, VT  05753

Systems Maintenance this Sunday Morning

Categories: Midd Blogosphere

During our regular maintenance window this Sunday, Dec 7th between 6 and 10 am we have the following activities scheduled:

 

  • One of the Middlebury Internet Service Providers has scheduled network changes that will result in the circuit going down for a few minutes. We have sufficient redundancy in providers that impact to the Middlebury network should be negligible.
  • Our Active Directory servers will be rebooted for regular maintenance. Customer facing services will see no impact. Admin login access to some Linux based servers will be unavailable for the duration of a server reboot.
  • Our DNS and DHCP servers will be rebooted for regular maintenance. We have sufficient redundancy that there should be little to no impact.
  • There will be equipment added to the network closets to increase client capacity at the Middlebury Marble Works offices. Network access in those offices will be unavailable while the equipment is offline for expansion.

 

We appreciate your patience as we continuously strive to keep our systems functioning optimally.

 

Billy Sneed

ITS – Central Systems & Network Services

Systems Maintenance this Sunday Morning

Categories: Midd Blogosphere

During our regular maintenance window this Sunday, Nov 9th between 6 and 10 am we have the following activities scheduled:

 

  • Moving servers and storage infrastructure from the Library data center to our new data center.
    • There will be some brief interruptions to services such as email or web sites, on the order of a few minutes each, while services failover between data centers.
    • This is the last, and largest, move of equipment between data centers.
  • Our primary nameserver will be rebooted

 

We appreciate your patience as we continuously strive to keep our systems functioning optimally.

 

 

Billy Sneed

ITS – Central Systems & Network Services

Wireless Enhancements

Categories: Midd Blogosphere

We’re working to replace and upgrade many of the existing wireless access points across Middlebury campus. You may see staff or contractors working with cabling and ladders in various buildings over the coming weeks.

We are upgrading to keep with the best wireless technology and address coverage or performance concerns. Along with entire building enhancements including McCardell Bicentennial Hall and Davis Family Library, the model we’re wholesale replacing is pictured here. If you see one of these, know that it will be replaced soon!
ap-61

Thanks for your patience and support as we strive to keep our systems functioning optimally!

System and Network Maintenance this Sunday

Categories: Midd Blogosphere

During our regular maintenance window this Sunday, Oct 19th between 6 and 10 am we have the following activities planned.

 

  • A patch will be applied to the DNS servers requiring sequential reboots. DNS resolution may see some slow responses for up to 20 minutes
  • Two of our spam filters will be moved between racks in one data center. There’s sufficient redundancy that no impact will be seen
  • One of our database servers and a print server will be rebooted. Printing queues may be unreachable for up to 15 minutes
  • One of our two ISP circuits will be down for 2 hours while the provider performs maintenance

              o   We have sufficient redundant bandwidth. Internet reachability will not be impacted

              o   Point-to-Point VPNs may drop a few packets, twice, during route changes

  • The VSphere interface to our virtualized server environment will be patched and rebooted. Reachability will be down for up to 15 minutes
  • Middfiles will be rebooted and unreachable for up to 15 minutes

 

We appreciate your patience as we continuously strive to keep our systems functioning optimally.

 

Billy Sneed

ITS – Central Systems & Network Services

Middlebury College

Middlebury, VT  05753

(802) 443-5769

System and Network Maintenance this Sunday

Categories: Midd Blogosphere

During our regular maintenance window this Sunday, Oct 5th between 6 and 10 am we have the following activities planned:

  • Middfiles will be offline for up to 2 hours within the 6-10 maintenance window while the storage arrays are moved from the Library data center to our new data center.

o   All files on Middfiles will be unavailable during this window, including home directories, Orgs, Classes, etc…

 

  • The SAN storage controllers will receive a small point release upgrade. No downtime is associated with this work.

 

  • We will move a pair of fiber channel switches form the Library data center to our new data center. Hosts served by these switches are dual connected and may see a brief (~5 seconds) unavailability.

 

  • The border firewalls will receive an upgrade. There are 4 brief Internet outages expected during the upgrade, each lasting up to 30 seconds.

o   All of Middlebury Internet access and the VPN to MIIS will be impacted.

 

  • One of our two Internet Service Providers will be performing a hardware change. This will result in one of our Internet circuits being down around 7am for up to 30 minutes. We have adequate Internet bandwidth on either single circuit to handle our needs during this time.

o   Point to point VPNs may see a brief drop while the path re-routes.

  • The Filemaker Pro database service will be interrupted for about 10 minutes between 8 and 9 am for application maintenance.

 

We appreciate your patience as we continuously strive to keep our systems functioning optimally.

 

 

William D Sneed

ITS – Central Systems & Network Services

System Maintenance Friday, Sept 26th

Categories: Midd Blogosphere

This Friday morning at 6:30am EST we will be performing emergency equipment replacement involving one of our border gateway routers. The expected impact to services is minimal as Middlebury has adequate redundancy between Internet bandwidth providers. Existing point-to-point VPN tunnels may see two brief outages up to a minute each while paths re-route during failover.

We appreciate your patience as we strive to keep our systems functioning optimally.