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Author Topic: IDE - usb through a Spider - a good alternative to powerflyer?  (Read 8580 times)

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Offline Lemmink

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The spider might be a little bit faster then the Algor/Highway. At best about double the speed, resulting in about 2 MB/s transferrate maximum (the external USB-drive I have gives about 700kb/s on my Algor).

DMA isnt an issue here, as the Mediator can not DMA into FastRAM, but only into the RAM of the PCI GFX-card, from there it as to betransfered the "traditional" way.

Bottomline: USB on (classic) Amiga isn't appropriate for often used drives let alone the systempartiton at all. Besides you can't boot from the spider.
Not really interesting, but it`s there.
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Offline Lemmink

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Re: IDE - usb through a Spider - a good alternative to powerflyer?
« Reply #1 on: November 21, 2005, 03:07:04 PM »
As far as I understand the Spider / Mediator combo is actually running USB 2 but only  as fast as it is able to get it going, resultin in not really that much more then USB 1.1 speed.
The same as with the 100 MBit drivers, where a 100 MBit card is faster then 10 MBit but by far not 10 time but only about 1.5 - 2 times.

Let's settle for "intentionally misleading information"
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Offline Lemmink

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Re: IDE - usb through a Spider - a good alternative to powerflyer?
« Reply #2 on: November 21, 2005, 03:10:20 PM »
Quote

• All ports can handle high-speed, full-speed and low-speed transaction  

By sticking to the letter say only say that the ports (-> the card itself) is able to handle those speeds. They don't say a word about the performance in the Mediator unter AmigaOS  :rtfm:
Not really interesting, but it`s there.
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