Hardware: Difference between revisions
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==== Disk space allocations ==== |
==== Disk space allocations ==== |
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Each user has a home directory located on ''ariadne''. This home directory is exported to all desktop machines, so that you see the same home filesystem on each machine. The drive is protected against hardware failure via a RAID-1 setup. Furthermore, each night all new or modified files on /home are written to tape (located in ariadne). This makes it important not to store temporary data in your home folder, as it would quickly fill up the tape. Since users tend to forget this, a quota system has now been enabled on ariadne, restricting each user to 15 GB. Check how much space you are using via the command <blockquote><tt>quota -s</tt></ |
Each user has a home directory located on ''ariadne''. This home directory is exported to all desktop machines, so that you see the same home filesystem on each machine. The drive is protected against hardware failure via a RAID-1 setup. Furthermore, each night all new or modified files on /home are written to tape (located in ariadne). This makes it important not to store temporary data in your home folder, as it would quickly fill up the tape. Since users tend to forget this, a quota system has now been enabled on ariadne, restricting each user to 15 GB. Check how much space you are using via the command <blockquote><tt>quota -s</tt></blockquote>. You must use this command on ariadne. |
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==== Nightly backups ==== |
==== Nightly backups ==== |
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Revision as of 14:16, 15 May 2014
Desktop machines
Clusters
Minotaur
- 38 nodes, each containing two 4-core processors (304 cores total). 8 GB memory per node.
Processor type: Intel Xeon E5472, 3.0 GHz. - Jobs are scheduled via Torque/Maui. Notes on using Torque.
Hydra
- 60 nodes, each containing two 6-core processors (720 cores total). 12 GB memory per node.
8 nodes (queue "fast", nodes h001-h008) have Intel Xeon X5690 3.47 GHz processors.
52 nodes (queue "default", nodes h009-h060) have Intel Xeon E5645 2.40 GHz processors. - Jobs are scheduled via Torque/Maui. Notes on using Torque.
Quest
Disk space, backups, and RAID storage
Disk space allocations
Each user has a home directory located on ariadne. This home directory is exported to all desktop machines, so that you see the same home filesystem on each machine. The drive is protected against hardware failure via a RAID-1 setup. Furthermore, each night all new or modified files on /home are written to tape (located in ariadne). This makes it important not to store temporary data in your home folder, as it would quickly fill up the tape. Since users tend to forget this, a quota system has now been enabled on ariadne, restricting each user to 15 GB. Check how much space you are using via the command
quota -s
. You must use this command on ariadne.