===== Cluster Details =====

  * 8 nodes with FDR Infiniband

  * 16 nodes with QDR Infiniband

==== Known Problems and Issues. ====

==== List of CTIT cluster hardware. ====

=== Computing hardware running Hadoop/Yarn, ordered by age. ===
|**year**|**#**|**type**|**CPU**|**RAM**|**disk**|**partitions**|**network**|**name(s)**|**task(s)**|**access**|
|2016|8 | Dell R730 | 2xE5-2630-v3 |64 | 6x4THDD raid0 | | FDR infiniband | ctit071..078 | hadoop worker |yarn scheduler |

=== Ordered hardware ===
|**year**|**#**|**type**|**CPU**|**RAM**|**disk**|**partitions**|**network**|**name(s)**|**task(s)**|**access**|
|2023| 8| Dell R7515 | 2xEPYC-7713P | 1024GB | 2x240GBssd, 2x1.9TBssd, 8x16TBhdd | | 10Gb Base-T | ctit001..008 | virtual hadoop | docker/kubernetes |

=== Obsolete hardware ===
|**year**|**#**|**type**|**CPU**|**RAM**|**disk**|**partitions**|**special**|**name(s)**|**task(s)**|**access**|
|2014|12| Dell R415 | 1xOpteron-4386 |64| 4x4THDD raid0 | | | ctit033..044 | hadoop worker | yarn scheduler |
|2014|1 | Dell R415 | 1xOpteron-4386 |64| 4x4THDD raid1 | | | ctit045 | OpenNebula front end and worker | web based (only via https) |
|2014|1 | Dell R415 | 1xOpteron-4386 |64| 4x4THDD raid1 | | | ctit046 | OpenNebula worker | via front end |
|2014|1 | Dell R415 | 1xOpteron-4386 |64| 4x4THDD raid1 | | | ctit047 | primary SLURM/secondary hadoop scheduler | admins only |
|2014|1 | Dell R415 | 1xOpteron-4386 |64| 4x4THDD raid1 | | | ctit048 | secondary SLURM/primary hadoop scheduler | admins only |
|2013|32| Dell R415 | 2xOpteron-4386 |64| 1x2.15T (echt 4) + 2x2TB | .15 RAID1 +  8TB striped | QDR infiniband | ctit001..032 | hadoop worker | yarn scheduler |
|2014|1 | Mac mini  | 1xi7-4578U     | 8| 256GBssd      | | | fmtmini | OS X build/test environment | FMT members only |
|2013|1 | Dell R720 | 1x E5- |32| 8x2THDD raid6 | | 10GbE | brecklenkamp_old | file server | admins only |
|2011|2 | supermicro | 1xE3-1220|16 | ? | | | singraven | proxy server | admin only |
|2011|1|supermicro|4xOpteron-6168|128| ? | | 10GbE | westervlier | node | slurm |
|2011|2 | supermicro | 1xE3-1220|16 | ? | | | schuilenburg | legacy twickel cluster | admin only |
|2009|1 | Dell R710 | 2xX5550 |144| ? | | 10GbE | oldemeule | head node | ssh |
|2009|1 | Dell R710 | 2xX5550 |72| ? | | 10GbE? | wegdam | head node | ssh |
|2008|15| Dell R200 | 1xE3110 |8| ? + 4T | | | farm01..15 | web services | contact Jan Flokstra |
|2007|1 | TTec 2U | 2xX5355 |32| 4x4T raid5 | | | vieker | file server | admins only |
|2007|2 | TTec 2U | 2xE5335 |64| 4x500 raid5 | | | twickel, data1 | OpenNebula worker | via front end |
|2007|1 | TTec 2U | 2xX5355 |64| 4x500 raid5 | | | weldam | OpenNebula worker | via front end |
|2007|1 | TTec 2U | 2xE5335 |16| 4x500 raid6 | | | warmelo | legacy twickel cluster | admin only |

On the hadoop part, we're going to stop the slurm scheduler.

=== Switching hardware ===
|**year**|**type**|**description**|**use**|
|2014| ?? |36 port infiniband switch | HPC interconnect for ctit001..032 |
|2009|Dell M6220|20 port Gbit with 4 SFP+ 10Gbit connections, internal to blade chassis | main network for ctit061..070 |
|2009|Dell M2401G|24 port infiniband switch, internal to blade chassis | HPC interconnect for ctit061..070 |
|2007|Dell 2448|48 port Gbit switch | currently not in use |
|2007|Dell 6224|24 port Gbit with 4 SFP+ 10Gbit connections, stand alone | currently not in use |