May 1, 20242 yr Hello Can anyone confirm or deny that the ASM1166 support FIS-based switching? According to this: https://www.asmedia.com.tw/product/45aYq54sP8Qh7WH8/58dYQ8bxZ4UR9wG5 It seems to only support Command based switching. But google seems to suggest that some people believes it support FIS based switching. I know for a fact that JMB585 support it, but an extra port would be nice. I know that port multipliers are considered a big no for Unraid, but I have HDD dock that support up to 4 disks, that I sometimes use to copy to and from, so it's not part of my array. I have tried a ASM1064 controller that did not support FIS based switching and on a 4 disk HDD dock it slows the disk speed to about 30 MB/sec when accessing all disks. To my understanding FIS-based switching should speed that up as long as both ends support it.
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