From: Mark Benson <[EMAIL PROTECTED]> Subject: Re: Need SCSI / RAID advice!! Date: Fri, 5 Dec 2003 08:56:00 +0000
It doesn't, as far as I know, it's not a very fast card. It is designed with seamless compatibility in mind and thus doesn't use any of the crazy hacks other cards used to increase speed. I have 2 10,000 rpm U160 Seagate Cheetah drives on mine and they rarely get past 10 or 12MB/s. The same drives in a RAID 0 array on an ATTO Silicon Express NuBus card (in the same machine) tunred in close to 30MB/s and would top 20MB/s stand-alone. Thus I can only conclude the card isn't that fast. ATTO SEIV cards are still bootable (after a firmware upgrade) and are a devil to get working, but blow me they FLY, and yes they do use block transfers.
Well now you've got me scratching my head. The SEIV is a Fast & Wide card, isn't it? As far as I know there's no Ultra-SCSI card for NuBus Macs. Theoretical maximum on a F&W bus is 20 MB/s. So I'm sitting here slack jawed trying to figure out how you got 30 MB/s out of a 20 MB/s maximum speed bus. :-) Is there a detail missing here? Two SEIVs in the same machine perhaps?
Jeff Walther
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