Service Status

Login Nodes: Available

Last Updated: 12:30, Friday 24 November 2017


Compute Nodes: Available

Last Updated: 12:30, Friday 24 November 2017


Low Priority: Disabled

Last Updated: 12:15, Friday 24 November 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

Monday 20th November 1200
The short queue resumed from Tuesday 21st November at 1200. We apologise for the inconvenience casued by its unavailability on Monday.

Upcoming Maintenance Sessions

Wednesday 22nd November 09:00-17:00
Full maintenance. ARCHER unavailable including login nodes, compute nodes, queues, /home and /work filesystems.
The RDF remains available including /epsrc, /nerc and /general filesystems, the DAC and DTNs.
ARCHER returned to service ahead of schedule at 15:00
Wednesday 13th December 09:00-17:00
At-risk maintenance.

Live Usage/Queue Data

Total Usage

All periods are relative to the current date.

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.

All periods are relative to the current date.

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.

All periods are relative to the current date.

Usage history for:

ARCHER usage by job size/length.

ARCHER Disk Status

RAID Check, fs2: Not Running

Last Updated: 12:15, Friday 24 November 2017


RAID Check, fs3: Not Running

Last Updated: 12:15, Friday 24 November 2017


RAID Check, fs4: Not Running

Last Updated: 12:15, Friday 24 November 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.