University of Cambridge Computer Laboratory - West Cambridge Data Centre full outage for planned electrical works – Maintenance details

This maintenance will not start until 17 September. Our status page platform has sent out a couple of incorrect emails about the timing of this maintenance; apologies for the confusion.

As previously announced, UIS have notified us that essential electrical works will be carried out at the West Cambridge Data Centre (WCDC) on 18 September 09:00-17:00. The entire data centre will be switched off all day.

This will affect many departmental services (several of our servers are hosted in WCDC) as well as other services in the broader University. Many departmental services will be shut down on the evening of 17 September and will remain offline until at least the evening of 18 September.

More details on the precise impact:

The following departmental systems will be unavailable:

• Departmental databases: dbwebserver, svr-win-db

• All research and teaching VMs, except dev-gpu-* and dev-cpu-*

• SSH servers: ely, svr-ssh-0 (use slogin.cl.cam.ac.uk instead which will be changed to point at svr-ssh-1, hosted elsewhere)

• Webadmin

• Verex

• Archive servers (archive / berilia; archive-smb / jerakeen)

• Licence servers: lmserv-*

• Cron servers (cron-serv*)

• Weather station

• Undergraduate SSH servers: cl-student-ssh, cl-teaching-ecad

• WSUS

• Misc utility websites on svr-www-02, svr-www-03, www-dyn*

• Legacy Windows remote desktop service (clrds / desktop)

• Legacy Subversion server (svn1)

• Legacy printing (CUPS, mDNS/Bonjour)

• Legacy VPL servers

• Legacy wiki server

• Morello: entire cluster

• EEG: beara, gola

• SRCF: egress, echo, enid

• TFC: tfc-app{1,2,4,10,11}

UIS have told us that the following University-wide services will be down all day on 18 September:

• The University Finance System (UFS)

• Cognos

• The Research Dashboard

• Tableau

• Research Computing Services will be unavailable from approximately 10:00 on 17 September until 17:00 on 19 September. This includes:

  • Cambridge Research Cloud (Arcus)

  • Cambridge Service for Data Driven Discovery (CSD3)

  • Dawn

  • Research Cold Store (RCS)

  • Research Data Store (RDS)

  • Research File Store (RFS)

  • Secure Research Computing Platform (SRCP)

The following departmental systems will be operating without resilience and are at risk of disruption:

• VPN2

• Active Directory (adsrv07)

• DNS (authoritative and recursive)

• LDAP

• DHCP

• MSA, MTA (SMTP outbound)

• TGT servers

• Legacy email (on filer / using .forward files)

• cl-onserver / laira, march

• Filer disaster-recovery snapshots

The following departmental systems will have their outage mitigated, i.e. they will be rehomed in the William Gates Building prior to the outage:

• Request Tracker

• www.cl.cam.ac.uk, sysdata.cl.cam.ac.uk (svr-www-00, svr-www-01)

• Xen Orchestra