Just thought I'd share some recent experiences. I had an Adaptec ASH-1233 PCI
controller (based on the Silicon Image SII0680ACL144 chip) in my Nevada build
45 system (a white box PC based on the AMD 3200+ CPU). This system is the
backup for my main home server. Using zfs send | rsh zfs receive to copy the
data, I was only getting about 4MB/sec to a RAIDZ1 pool of 4 X IDE 300GB drives
(2 on the internal IDE controller and 2 on the Adaptec).
I swapped the Adaptec for the "generic" CompuUSA PCI "ULtra ATA / 133 PCI
Card". It's SKU 293595. It's based on the ITE IT8212F. I give you the details
because with the same disk, just swapping controllers, I'm now moving on
average 34MB/sec.
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