Billy Sneed

Posts by Billy Sneed

 
 
 

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.

Network Maintenance Tuesday Affecting Bread Loaf Campus, Aug 12th

Categories: Midd Blogosphere

One of our two Internet service providers FirstLight has fiber maintenance scheduled this coming Tuesday morning, Aug 12th. This is related to the railway modification plans in downtown Middlebury. Our Internet service should have little to no impact as we have redundant capacity between two providers.

 

The fiber circuit connecting the Bread Loaf campus to Middlebury campus will be down for up to 90 minutes sometime within the 12:01am to 5:00am maintenance window Tuesday morning. Bread Loaf will have no network connectivity during that time. FirstLight has scheduled the following two mornings as alternates in case of weather related delays.

 

Start Date: 08/12/2014-08/14/2014
Start Time: 0001  EDT
Estimated End Date: 08/12/2014-08/14/2014
Estimated End Time: 0500 EDT
Service Impact:    Loss of service for up to 90 minutes.

 

William D Sneed

ITS – Central Systems & Network Services

Middlebury College, Voter Hall B05

Middlebury, VT 05753

(802) 443-5769

System Maintenance Update

Categories: Midd Blogosphere

During our regular Sunday morning system maintenance today the swap between primary and backup NAS clusters was successful. The filesystems for Middfiles, Crux, and Augusta are all available for use. One side-effect of the cluster swap is some computers may need to be rebooted to see Middfiles or the home directory.

If you cannot see your home directory or Middfiles, or get prompted for a username and password when trying to, please reboot your computer. That should resolve the issue and force the computer to successfully recognize that the primary and backup clusters have swapped roles.

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

 

System and Network Maintenance this Sunday Morning

Categories: Midd Blogosphere

During our maintenance window this Sunday morning between 6 and 10 am we have the following activities planned:

In preparation for the data center move to Exchange St we will be switching the primary and backup roles between the Isilon NAS clusters that serve Middfiles, Crux, and Augusta. All access to MiddFiles will be affected including mapped drives or network shares to cifs:\\middcloud.middlebury.edu\middfiles, webdav to https://middfiles.middlebury.edu, sftp to middfiles.middlebury.edu, “netstorage” at http://go/netstorage.
The expected outage will be up to 30 minutes between 7am and 9am.

Note: This will include schedule programs/scripts that transfer files to/from middfiles (including from banner).

 
We will be changing the user home directory structure to a simplified format. There will be symbolic links in place to allow existing file paths to continue working as always.

The existing format:
\\middcloud\middfiles\home\A-B\<username>
\\middcloud\middfiles\home\C-E\<username>
\\middcloud\middfiles\home\F-J\<username>
\\middcloud\middfiles\home\K-M\<username>
\\middcloud\middfiles\home\N-R\<username>
\\middcloud\middfiles\home\S-Z\<username>

Will change to the new format:
\\middcloud\middfiles\home\<username>

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