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This report covers the period from 1 February 2010 to 30 April 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.
During inclement weather in February resilience in parts of the JANET core network in Scotland were reduced. For over six days “links between Glasgow-AbMAN and Glasgow-FatMAN lost connectivity due to a fibre break on circuits running along overhead power lines ... Persistent adverse weather conditions caused long delays in making the repairs to the fibre breaks in the cable running between pylons carrying the overhead power lines.”
While the network was in this prone state equipment on the remaining link to the AbMAN and FatMAN regional networks developed a fault. “...a faulty card at the Dundee PoP caused a loss of connectivity on the links to AbMAN and FatMAN via Leeds.” This incident resulted in all organisations connected via the AbMAN and FatMAN regional networks suffering 82 minutes of unavailability in February.
The number of organisations receiving in excess of 99.7% annual network availability on their connections to JANET has further improved; 3.35% of sites for which 12 months data exist received below this level based on calculations at the end of the quarter.
Following the deployment of the Roam interface to Digimap OS Collection EDINA have launched a similar beta interface for Digimap Historic: Ancient Roam. A Historic Download beta service was also launched.
The Monitoring Unit identified anomalies in some session usage data reported by EDINA for April 2010. Revised data were resubmitted; during investigation into this problem EDINA discovered that session data for Education Image Gallery had been under-reported since December 2008. This error has been attributed to changes made to the service during the transition from Athens based authentication to use of the UK federation.
While overall the availability of the Digimap services has continued to increase, following migration to a new platform, Gazetteer services were affected by four unscheduled outages totalling 6,660 minutes (over 4½ days). The application was discovered to freeze if a certain sequence of searches and browser interaction occurred resulting in a loss of connectivity to the underlying database. EDINA implemented a fix for this problem on 8 June 2010 but the extremity of the outage means this service level cannot be met until February 2011 at the earliest.
Three new library catalogues were added to Copac:
Response times for Intute searches have improved since corrective action was taken to stop search engine robots accessing the search script last quarter. Measurements throughout this quarter met the prescribed service level but the extent of problems last quarter means that the 12 month service level cannot be met before January 2011.
The Monitoring Unit has continued work with BUFVC to collect service performance and usage data from them on a voluntary basis. Data were supplied for this quarter and processes are in place to include BUFVC's report in the next quarterly report.
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 Tuesday, July 27, 2010.
