Sagacious Himself — brevity in circumlocution: never blague — suffering genius

January 14, 2011

multidrive sata port multiplier drive enclosures (vs multilane SATA)

Filed under: Hardwares,TV — Sagacious Himself @ 5:30 pm
Tags:

feed the [NAS] storage demands of boxee or other uses.. mmm overkill

http://www.pc-pitstop.com/sata_port_multipliers/

Benefits of port multipliers:

Controller and the cabling cost is very low, compared to multilane alternatives when using a large number of drives. The solution occupies only 1 slot in your server, whereas a 12 or 16 port multilane solution would need at least 2 slots. It is the only way to have JBOD mode hot-swapping with more than four drives in a single slot. You can have 5 or 10 bays in a tower enclosure as opposed to 4 or 8 with our other solutions. If necessary, it is possible to convert the connection to USB via our eSATA to USB adapters.

Limitations of port multipliers:

If you have high-bandwidth slots (PCI-X or PCIe), performance will be limited to 300MB/s, unlike multilane enclosures. You will be limited to non-caching controllers and you will not be able to use RAID 6.

Benefits of port multipliers:

Controller and the cabling cost is very low, compared to multilane alternatives when using a large number of drives. The solution occupies only 1 slot in your server, whereas a 12 or 16 port multilane solution would need at least 2 slots. It is the only way to have JBOD mode hot-swapping with more than four drives in a single slot. You can have 5 or 10 bays in a tower enclosure as opposed to 4 or 8 with our other solutions. If necessary, it is possible to convert the connection to USB via our eSATA to USB adapters.

Limitations of port multipliers:

If you have high-bandwidth slots (PCI-X or PCIe), performance will be limited to 300MB/s, unlike multilane enclosures. You will be limited to non-caching controllers and you will not be able to use RAID 6.

If boxee box had bothered to use eSataP ports instead of only [useless] USB then:

http://www.pc-pitstop.com/sata_enclosures/

… Or interface overkill: with 3.0Gbps eSATA, FireWire 800, iSCSI/AoE and USB3

http://www.areca.com.tw/products/esatafirewire800iscsiaoeusb.htm [Areca 5040]

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