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wizard1969
Joined: 18 Jan 2014
Posts: 7
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 Posted: Thu Jan 30, 2014 5:22 am Post subject: SCSI to IDE adapter that does not cost an arm and a leg? |
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| Looking to replace the hard drive in my slab with a compact flash card or something else modern, and have noticed that the price of the ACARD 7720U (mentioned in this thread: http://www.nextcomputers.org/forums/viewtopic.php?t=1616) is now over $250 on ebay, up from $35 mentioned in the thread. Could anyone recommend a different piece of hardware that is not so expensive? |
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mikeboss
Joined: 07 Dec 2011
Posts: 374
Location: switzerland
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wizard1969
Joined: 18 Jan 2014
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mikeboss
Joined: 07 Dec 2011
Posts: 374
Location: switzerland
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| Posted: Thu Jan 30, 2014 6:17 am Post subject: |
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yes, this is the right one. just make sure you'll get it with the right firmware installed! the best working version (for black hardware) is V 3.86.
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October 12, 1988 Computing Advances To The NeXT Level |
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wizard1969
Joined: 18 Jan 2014
Posts: 7
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| Posted: Thu Jan 30, 2014 4:21 pm Post subject: |
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| Great, I ordered one. I sent him a message specifying wanting 3.86 firmware. Hopefully that gets through. |
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barcher174
Joined: 07 Dec 2012
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mikeboss
Joined: 07 Dec 2011
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Location: switzerland
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| Posted: Wed Feb 12, 2014 6:27 am Post subject: |
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nice find! had to order one, too  looks very promising, and the price seems very fair.
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October 12, 1988 Computing Advances To The NeXT Level |
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cbrunschen
Joined: 09 May 2011
Posts: 39
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| Posted: Wed Feb 12, 2014 3:04 pm Post subject: |
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| mikeboss wrote: | | nice find! had to order one, too looks very promising, and the price seems very fair. |
On the other hand, it only implements asynchronous transfers, and the performance appears ... less than stellar:
| Quote: | As currently implemented:
Sequential read: 930kb/sec Sequential write: 900kb/sec |
(I'm presuming that this means '930 kilobytes per second' and not 'kilobits per second'.)
Compare this to the CF AztecMonster, which offers write speeds of up to 5 MB/s (megabytes per second), and read speeds in excess of 15 MB/s – performance on average an order of magnitude better.
So for about twice as much money (the CF AztecMonster is $129, the SCSI2SD is AUS$75 which is about US$67) you get 10-ish times the speed. And for the same $129 you can get the AztecMonster II which lets you connect a SATA disk (including SSDs) and which offers more than 10 and up to almost 20 MB/s read and write, sustained, with big enough transactions. |
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barcher174
Joined: 07 Dec 2012
Posts: 623
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| Posted: Wed Feb 12, 2014 5:53 pm Post subject: |
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| That is quite true, however when comparing the performance of these to a vintage drive I think these will still have the advantage in most cases (including heat and power consumption). Total cost on this is probably only $30 more than getting a vintage drive after shipping which make it appealing for those shopping on price. |
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pl212
Joined: 31 Oct 2009
Posts: 68
Location: Chicago, IL
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| Posted: Thu Feb 13, 2014 9:12 am Post subject: |
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| mikeboss wrote: | | yes, this is the right one. just make sure you'll get it with the right firmware installed! the best working version (for black hardware) is V 3.86. |
Out of curiosity, do you know what in particular this fixes? Is there an easy way to upgrade the firmware? Have a 3.5" and 2.5" from ArtMix and would like to bring them both up-to-date...
thanks! |
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gtnicol
Joined: 27 Dec 2005
Posts: 533
Location: Rhode Island, USA
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| Posted: Thu Feb 13, 2014 1:00 pm Post subject: |
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I keep hopping someone will offer something in the $50-$70 range... perhaps in kit form. Modern embedded controller should be fast enough to emulate most of SCSI. For example:
http://micha.freeshell.org/ramdisk/index.php |
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mikeboss
Joined: 07 Dec 2011
Posts: 374
Location: switzerland
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| Posted: Thu Mar 20, 2014 5:02 am Post subject: |
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brian, did you get your SCSI2SD already? I received mine today, but it seems like this one's not compatible with black hardware. during boot I can see that the board is recognized but the cube just hangs at this stage...
will check now if it works properly with a 68k macintosh.
EDIT: the SCSI2SD adapter seems to work flawless in an LC-475
regards,
michael
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October 12, 1988 Computing Advances To The NeXT Level
Last edited by mikeboss on Thu Mar 20, 2014 5:49 am; edited 1 time in total |
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mikeboss
Joined: 07 Dec 2011
Posts: 374
Location: switzerland
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| Posted: Thu Mar 20, 2014 5:05 am Post subject: |
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| pl212 wrote: | | mikeboss wrote: | | yes, this is the right one. just make sure you'll get it with the right firmware installed! the best working version (for black hardware) is V 3.86. |
Out of curiosity, do you know what in particular this fixes? Is there an easy way to upgrade the firmware? Have a 3.5" and 2.5" from ArtMix and would like to bring them both up-to-date...
thanks! |
AFAIR with V 3.7 I got an error during boot but otherwise it'll work just fine. see this thread -> http://www.nextcomputers.org/forums/viewtopic.php?t=3019
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October 12, 1988 Computing Advances To The NeXT Level |
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barcher174
Joined: 07 Dec 2012
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barcher174
Joined: 07 Dec 2012
Posts: 623
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| Posted: Sun Apr 20, 2014 4:18 pm Post subject: |
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Looks like there was a new firmware released which resolved the hang on boot issue. I've gotten a card to be recognized in nextstep, but still need to work on a disktab to make it bootable.
--
Brian |
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