CAR:

Server type-1 (2 units)

• Dell PowerEdge R420 [Ref]
• 2 x Intel® Xeon® CPU E5-2430 [Ref]
• 96 GB. DDR3 Memory
• Mellanox Technologies MT27500 Family [RDMA-Enabled NIC] [Ref]
• CentOS release 6.9

Server type-2 (3 units)

• Dell PowerEdge R430 [Ref]
• 2 x Intel® Xeon® CPU E5-2620 v4 [Ref]
• 32 GB. DDR3 Memory
• Mellanox Technologies MT27500 Family [RDMA-Enabled NIC] [Ref]
• CentOS release 6.9

Server type-3 (9 units)

• Dell PowerEdge R610 [Ref]
• 2 x Intel® Xeon® CPU L5630 [Ref]
• 32 GB. DDR3 Memory
• Mellanox Technologies MT27500 Family [RDMA-Enabled NIC] [Ref]
• CentOS release 6.9

RDMA-enabled switch type-1 (1 unit)

• Mellanox SX1012X Open Ethernet Switch [Ref]
• 12 QSFP ports 40/56GbE
• Lowest latency: 220nsec for 40GbE

RDMA-enabled switch type-2 (1 unit)

• Mellanox MSX1024B-1BFS-RF SwitchX-2 Open Ethernet Switch [Ref]
• 48 SFP+ ports 10GbE
• 12 QSFP ports 40/56GbE
• Lowest latency: 270nsec for 10GbE
• Lowest latency: 220nsec for 40GbE

REX uses adaptive incremental checkpointing (AIC), derived out of:

• modifying Berkeley Lab Checkpoint/Restart for Linux (BLCR) version 0.8.2 to handle incremental checkpointing; and
• integrating a page-aligned delta compressor (Xdelta3-PA), a modified version of Xdelta3 (version 3.0y).