The front-end modules (FEMs), also called channel boards (CHBs), control the transfer of data between the host and cache memory. The storage system supports FC, FC Ethernet, and iSCSI front-end modules for attachment to host servers. The front-end module LEDs indicate the operating status of the module.
Fibre Channel (FC-SCSI)
Specification | Fibre 32-Gbps | Fibre 64-Gbps | |
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Model number | DW-F900-4HF32R | DW-F2000-4F64 | |
Number of PCBs | 1 | 1 | |
Host interface | FCP | FCP | |
Data transfer rate (MB/s) | 16 Gbps: 400/800/1,600 32 Gbps: 800/1,600/3,200 |
32 Gbps: 800/1,600/3,200 64 Gbps: 1,600/3,200/6,400 |
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Number of options installed: | 2/4/6/8 | 2/4/6/8 | |
Number of ports per PCB | 4 | 4 | |
Number of ports per storage system: | 8/16/24/32 | 8/16/24/32 | |
Maximum cable length | Short wave | 400 m/190 m/125 m/100 m | 190m/125m/100m |
Long wave | 10 km | 10 km | |
Copper | - | - |
Ethernet (FC-TCP)
Specification | Ethernet 100G | |
---|---|---|
Model number | DW-F2000-2E100 | |
Number of PCBs | 1 | |
Host interface | TCP (optical/copper) | |
Data transfer rate (MB/s) | 10,000 | |
Number of options installed( ): DKB slot used | 2/4 | |
Number of ports per PCB | 2 | |
Number of ports per storage system( ): DKB slot used | 4/8 | |
Maximum cable length | Short wave | 100 m |
Long wave | - | |
Copper | TBD(DAC) |
iSCSI
Specification | iSCSI 10G | iSCSI 10G BASE-T | iSCSI 25G | |
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Model number | DW-F900-2HS10S | DW-F900-2HS10B | DW-F2000-2HE25 | |
Number of PCBs | 1 | 1 | 1 | |
Host interface | iSCSI (optical) | iSCSI (copper) | iSCSI (optical) | |
Data transfer rate (MB/s) | 1,000 | 100/1,000 | 1,000/2,500 | |
Number of options installed( ): DKB slot used | 2/4/6/8 | 2/4/6/8 | 2/4/6/8 | |
Number of ports per PCB | 2 | 2 | 2 | |
Number of ports per storage system( ): DKB slot used | 4/8/12/16 | 4/8/12/16 | 4/8/12/16 | |
Maximum cable length | Short wave | 550 m | - | 400 m/100 m |
Long wave | - | - | - | |
Copper | - | 50 m (cat 6a) 100 m (cat 5e/6a) |
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