[OpenIndiana-discuss] Newbie question about SCSI 320

[Bryan N Iotti]

Hi there,

this is the first SCSI system where I can actually mess around a bit 
(the first was a Mac IIci with a couple external HDs and a SCSI CDROM).

Now, I have 2x 146Gb SCSI drives ("iostat -E" reports SEAGATE 
ST3146707LW revision HPS2), running my mirrored rpool. It seems like 
there is a noticeable amount of system lag and "iostat -xzn" will always 
report asvc_t > 20.

Would connecting both disks to the same cable or use one cable per disk 
make any real performance difference?

I tried both and ran bonnie++... here are my results, but I'd like some 
comments on the matter

This is with both on one cable



This is with each on its own



Thank you for any advice,

    Bryan