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LCSE Multimedia Gallery - Multicore Cluster

LCSE Multimedia Gallery

Scientific Visualization


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DSC00578.JPG
140TBs of SATA II Hitchai disks90 views
IMG_3786.JPG
Fully assembled cluster122 viewsFour nodes. 32TB of SATA storage.
IMG_3785.JPG
Internals of one node130 views32 SATA connections. One DDR infiniband HCA. Two 3ware 9550SX SATA RAID Controllers. Two Nvidia 8800 graphics cards. Two Quad Core Intel Xeon Processors. 32GB of RAM.
Performance.JPG
Disk tuning tests151 viewsVarious disk array tests.
Y-axis = KB/s
X-axis = Number of log buffers, Logsize (mb) , Allocation Groups
Tests done with bonnie++ v1.03 using 70GB test files. Two trial per test.
Disk-setup.jpg
Disk configuration diagram208 views32 locally attached disks into two logical volumes.
16 SATA disks per controller.
Two devices (/dev/sda & /dev/sdb) into one volume group.
Volume group split into two logical volume striped between two devices.
Formatted with XFS filesystem.
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