Notification of downtime NB, please read this!: This serves as initial notification of the Sunday 22nd July data centre shut down in 6 weeks time. The ICTS data centres will be shut down completely on Sunday the 22nd of July between 08h00 and 18h00 for electrical maintenance. This is part of the planned yearly maintenance cycle. Please ensure that your jobs are check-pointed if possible and shut down by no later than Saturday evening. If jobs are left still running we cannot be held responsible for lost or corrupted data. Request for references and citations: If you have published papers or submitted a thesis and have referenced the ICTS HPC cluster please let us know so that we can add to our list of references and citations. The details of how to submit an acknowledgement can be fond here: https://ucthpc.uct.ac.za/Citations.html Old accounts: Please let us know if you no longer require your HPC account. We would like to do a data clean-up on the file system and will be moving data from inactive accounts to archive. Increase in disk space and plans for a new cluster: We will be presenting an additional 25TB data area: /home2. Researchers needing extra disk space may request access to this with a motivation. When we deploy our new cluster later in the year this data area will be presented as /home, making migration from the old cluster trivial. As part of our plan to archive research data in the long term we will be replacing our Gluster scratch area with a 25 TB scratch area which researchers can have RW access to on request as well as an additional 25TB archive area for long term backups. We are working on the deployment of a new cluster. OS will be Scientific Linux 6.x as this provides a more modern suite of packages. This will be run in parallel with our current cluster and will have a fewer servers initially, however the focus will be on homogeneous hardware with a large number of cores and RAM per server.