October 25, 201114 yr Guys. Just to check.....will this port multiplier be ok with unRaid? http://www.scan.co.uk/products/lycom-st-126rm-sata-ii-3gbps-1-to-5-port-multiplier-bridge-board-%28for-rack-mount%29?utm_source=google+shopping&utm_medium=google+shopping Thanks in advance
October 26, 201114 yr Author Sorry should have been this one. From what i can see from searching the forums the chipset SiI3726 seems to be fine. Some of the posts were old so just confirming before buying http://www.ilgs.co.uk/products.asp?partno=ST-126
October 27, 201114 yr FWIW two other options are the SY-PCI40037 by Syba and AD5SAPM by Addonics. All seem like they should work, but as said on unRAID before ... no way to tell without just trying it since it might also depend on your MB. My real curiousity is what do these do to Parity check speed? We don't do that very often, and when we do it is at night. I can't imagine sharing a single port will have much impact on reading/writing since that usually only hits one or two drives at a time. Keep Cache and Parity on the MB ports and all should be well. If these have minimal impact they might just be a cheaper, and possibly less troublesome way to add ports than the SASLP cards have been lately on v5betas. They claim to support 3TB drives but I don't know if they will support 3TB on unraid. Anyone?
October 27, 201114 yr The addonics was confirmed to work a couple of years ago. Albeit, reported as working slow. The PMP speed is roughly 60MB/s and less. As you get to the larger drives, this becomes more of an issue. If the drives in the array are staggered or interleaved with access, the speed may be faster. The person using the Addonics said that it was faster, but not by that much. They claim to support 3TB drives but I don't know if they will support 3TB on unraid. Anyone? The hardware will support it, unRAID 5.x will support the 3TB drives. unRAID 4.x will only support a short stroked HPA configured drive. The software side of it is different between versions of unRAID because the partition scheme changes from MBR to GPT for the larger drives (unRAID 5.x).
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