Service Status

Login Nodes: Available

Last Updated: 14:00, Thursday 23 March 2017


Compute Nodes: Available

Last Updated: 14:00, Thursday 23 March 2017


Low Priority: Disabled

Last Updated: 13:45, Thursday 23 March 2017


This page contains details of the status and usage of the ARCHER system.

Known Issues

No current issues

Open Issues

No open issues

Recently Resolved Issues

No recent issues

Upcoming Maintenance Sessions

RDF Maintenance - 0900 GMT on Wednesday 22nd March - 1700 GMT on Friday 24th March RDF
This is to allow a firmware upgrade to take place and the entire RDF will be unavailable during this essential work which includes:
  • RDF login nodes
  • Data Transfer nodes
  • Data Analytics Cluster
  • access to all files held on the RDF
Our team will complete this work as speedily as possible and if they are able to return the RDF to service ahead of time we will do so and send a futher announcement.
We apologise for the inconvenience caused.
ARCHER Maintenance
The Operating System on ARCHER is being upgraded to CLE 5.2 UP04 and this will require two maintenance sessions. The first will allow a system set backup to take place and the second is to perform the actual upgrade.
  • Wednesday 12th April 09:00 - 17:00 GMT (8 hour)
  • Wednesday 26th April 08:00 - 20:00 GMT (12 hour)

Live Usage/Queue Data

Total Usage

Usage history for:

This shows the number of nodes currently in use on ARCHER.

ARCHER usage graph.

Queue Status

Queue history for:

The graph below shows the status of the standard queue on ARCHER.

ARCHER standard queue status graph.

Live Usage/Queue Data by Job Length/Size

This section displays ARCHER usage and queue information broken down by the job class (class is based on size in nodes and run time in hours).

Queue Times by Job Size/Length

The heatmap below provides information on the mean queue times on ARCHER over past periods for different job sizes/lengths. The colour in the heatmap indicates the mean queue time as measured by scheduling coefficient for each class and the number in the box is the number of jobs of that class.

The scheduling coefficient is the ratio of run time to run time plus queue time and, as such, represents the fraction of the time in the queue that was spent running. A value of 1 indicates that the job started instantaneously and a value of 0.5 indicates that the job queued for the same amount of time that it ran for.

Usage history for:

ARCHER scheduling coefficient.

Usage by Job Size/Length

The heatmap below provides information on the usage on ARCHER over past periods for different job sizes/lengths. The colour in the heatmap indicates the number of kAU expended for each class and the number in the box is the number of jobs of that class.

Usage history for:

ARCHER usage by job size/length.

ARCHER Disk Status

RAID Check, fs2: Not Running

Last Updated: 13:45, Thursday 23 March 2017


RAID Check, fs3: Not Running

Last Updated: 13:45, Thursday 23 March 2017


RAID Check, fs4: Not Running

Last Updated: 13:45, Thursday 23 March 2017


ARCHER Network Traffic

Data transferred on and off ARCHER in the last 72 hours (green = data transferred off ARCHER; blue = data transferred on to ARCHER).

ARCHER network traffic graph.

Data transferred on and off RDF in the last 72 hours (green = data transferred off RDF; blue = data transferred on to RDF).

ARCHER network traffic graph.