This report covers the period from 01 November 2009 to 31 January 2010 inclusive. The executive summary highlights points of particular note but further commentary, including details of other incidents, are included in the attached detailed reports.
An overnight incident with the JANET core network on 30 January 2010 affected the network availability of organisations on five regional networks. JANET(UK) reported:
“On January 30th at 00:50, a fault occurred on the SJ5 core router at Reading C-PoP that caused IP traffic flowing through that router, on the Warrington to Reading line, to be "black holed" by one of its components. However, to the SJ5 routers everything looked normal, internal routing protocol traffic between the routers was not affected and hence they did not re-route production traffic passing through the Reading router. Consequently, during this period, regional network traffic using the Warrington to Reading backbone link was severely disrupted. All sites on the NorMAN, ClydeNET, NIRAN and CANLMAN networks were affected, along with some sites on the WMRN network. Once the location of problem was pinpointed, Senior Engineers collected as much evidence and diagnostic information as was available before recovering the situation at 03:15. The exact cause of this problem is still being investigated, but the Reading router has been running fault free since the fault was rectified”
Additionally the incident affected the connections between JANET and HEANET. All other connections to external networks were available at all times throughout the quarter.
The number of organisations receiving in excess of 99.7% network availability on their connections to JANET fell slightly this quarter; 3.95% of sites received below this level based on calculations over the 12 months ending January 2010.
The Classic interface to Digimap OS Collection was decommissioned in January and is replaced by Roam. Roam has click-and-drag navigation (also known as "slippy maps") and enables PDF maps to be produced in landscape and portrait orientations in both A4 and A3 paper sizes. Following migration to a new GIS platform the availability of Digimap Collections has continued to improve. Within Digimap OS Collection only MasterMap Download was below the availability service level at the end of the quarter.
EDINA have undertaken further analysis of problems with SUNCAT response times. In addition to delays during overnight weekly backups they have identified that delays occur following one of the data ingest processes. Work is continuing with their software supplier to try and address this problem.
Response times for searches on Intute were particularly high in December 2010. A combination of ageing hardware and accesses to the search script by a web indexing robot resulted in only 53.7% of responses being within 5 seconds in that month. Mimas have blocked access to the search script by robots and the service is anticipated to move to new hardware in early 2010.
The Monitoring Unit has been working with BUFVC to collect service performance and usage data from them on a voluntary basis. These data will be incorporated into future quarterly reports.
There is no service level reporting for JISC Advance or JISC Collections. However, usage data for JISCMail (a service within JISC Advance) have continued to be made available to the Monitoring Unit and these have been included in this report.
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Last updated by Ian Cooper on Wednesday, May 5, 2010.
