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- Path: mail2news.demon.co.uk!g4wyc.demon.co.uk
- From: Steve Powell <Rock@g4wyc.demon.co.uk>
- Newsgroups: comp.sys.amiga.hardware
- Subject: Re: Which SCSI card to buy?
- Date: Mon, 12 Feb 96 17:37:09 GMT
- Organization: UK Private Internet Account
- Message-ID: <9602121737.AA002ez@g4wyc.demon.co.uk>
- References: <2_464_31_172_310cfe35@solar.dnepropetrovsk.ua> <1881.6611T1147T624@mag-net.co.uk>
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- In article <1881.6611T1147T624@mag-net.co.uk> gnome@mag-net.co.uk (John Marchant) writes:
- >
- >
- > In a message on 29-Jan-96 15:39:00, Andrew Sendetski wrote:
- >
- > > I want to add SCSI controller to my A4000 to obtain more than 3 MB/sec
- > > data transfer rate on Quantum Fireball 1GB SCSI HD (for work with
- > > VLAB Motion card). Here is my question: which SCSI card suitable for this
- > > (Fastlane Z3? DKB4091? Any other?) ?
- >
- > I find the Oktagon 2008 very satisfactory, but I don't know how it
- > compares with the others.
- >
- > I'm using it on a 4000/40 which is about 2 years old - has a Rev.11
- > buster chip and 3.1 processor board (I think - it was upgraded when
- > Wang fitted the buster). It's driving a 500Mb Fujitsu scsi drive on
- > the Oktagon board, an internal Toshiba XM3401 CD drive, and an
- > external Viper tape drive. I've had no problems since I got the
- > config right. The Oktagon manual is very badly laid out with
- > information closely printed and scattered about in various chapters
- > instead of being in sensible step-by-step format.
- >
- > I don't normally pay attention to speed measurements, which are
- > frequently bogus. Sysinfo crashes if I ask it to tell me "Speed".
- > But "it never keeps me waiting" :-)
- >
- > I just ran "DiskSpeed" and got the following:
- >
- > Testing with a 262144 byte buffer. (LONG-aligned, MEMF_FAST)
- > Create file: 245453 bytes/sec | CPU Available: 66%
- > Write to file: 533706 bytes/sec | CPU Available: 56%
- > Read from file: 506558 bytes/sec | CPU Available: 51%
- >
- > That's nowhere near the speed you ask for, but I don't know how
- > my drive compares with yours. I had 5 large programs dormant in
- > the background: Thor, BBS, Trapdoor, CygnusEd, DirOpus.
-
- That is VERY slow, worthy of older IDE units not SCSI. I used to
- get more than that with my old A500/590 SCSI controller!! Fujitsu SCSI
- should be MUCH faster.
-
- Currently I get 1.6Mb sec on the internal IDE controller with a pair of
- Seacrate 540Mbs.
-
- --
- /// A M M I GGGGG A Steve Powell G4WYC
- /// AA MM|MM I G AA Bracknell, UK. IO91pj
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- \/// A A M M I GGGGG A A Demon Internet, Amiga A4000/040 & AmiTCP3
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