Add a .spec to create scsi2sd-util RPM
[SCSI2SD-V6.git] / readme.txt
1 SCSI2SD, The SCSI Hard Drive Emulator for retro computing.
2
3 Traditional hard drives last 5 years*. Maybe, if you're luckly, you'll get 10
4 years of service from a particular drive. The lubricants wear out, the spindles
5 rust. SCSI2SD is a modern replacement for failed drives. It allows the use of
6 vintage computer hardware long after their mechanical drives fail. The use of
7 SD memory cards solves the problem of transferring data between the vintage
8 computer and a modern PC (who still has access to a working floppy drive ?)
9
10 *All statistics are made up.
11
12
13 Features
14
15 In-built active terminator.
16 Emulates up to 4 SCSI devices
17 Supports sector sizes from 64 bytes to 8192 bytes
18 Firmware updatable over USB
19 Highly configurable over USB
20 Selectable SCSI ID
21 Selectable parity support
22 Enable/disable Unit Attention Condition
23 Artificial limits on the SCSI disk size (eg. limit size to 4G to avoid OS bugs)
24 Sector size (can also be set via the SCSI MODE SELECT command, as sent by SCSI format utilities).
25
26
27 Technical Specifications
28
29 SCSI Interface
30 SCSI-2 Narrow 8-bit 50-pin connector. Supports asynchronous transfers only.
31 Micro SD Card Interface
32 Standard microSDSC (1GB maximum size)
33 microSDHC, microSDXC
34 Communication is via the SPI protocol at 25MHz.
35 USB Interface (firmware updates and config)
36 USB 2.0 micro-B
37 Power
38 5V via standard molex drive connector
39 USB or self-powered using the SCSI host termination power. (v5 only)
40 Dimensions
41 10cm x 5cm x 1.5cm (v5)
42 10cm x 10cm x 1.5cm (v3, v4)
43
44
45 Performance
46
47 As currently implemented:
48
49 Transfer size: 512 2048 8192 65536
50 -------------------------------------------------------
51 read: 2MB/s 2.1MB/s 2.5MB/s 2.6MB/s
52 write: 125kB/s 441kB/s 1.5MB/s 2.3MB/s
53 -------------------------------------------------------
54
55
56 Tested with a 16GB class 10 SD card, via the commands:
57
58 # WRITE TEST
59 sudo dd bs=${SIZE} count=100 if=/dev/zero of=/dev/sdX oflag=dsync
60
61 # READ TEST
62 sudo dd bs=${SIZE} count=100 if=/dev/sdX of=/dev/null
63
64 Compatibility
65 Computer systems
66
67 Mac LC-III and LC-475
68 Mac II running System 6.0.8
69 Mac SE/30
70 Apple IIgs using Apple II High Speed SCSI controller card (from v3.3)
71 Symbolics Lisp Machine XL1200, using 1280 byte sectors (from v3.4)
72 PDP-11/73 running RSX11M+ V4.6
73 Microvax 3100 Model 80 running VMS 7.3 (needs patch against v3.5.2 firmware)
74 Amiga 500+ with GVP A530
75 Commodore Amiga 500 KS 1.3 with Oktagon 508 SCSI-2 controller
76 Amiga 2000 (B2000 rev 6.4 ECS) with DKB RapidFire SCSI 1 card
77 Amiga 4000 equipped with CyberStorm PPC using 68pin adapter.
78 Atari TT030 System V
79 Atari TT running TOS 3.06 with HDDRIVER software version 9.06
80 Atari MEGA STE
81 needs J3 TERMPWR jumper
82 1GB limit (--blocks=2048000). The OS will fail to read the boot sector if the disk is >= 1GB.
83 Atari Falcon, TOS 4.02, HDDRIVER 9.06 driver
84 Sharp X68000
85 SASI models supported. See gamesx.com for information on building a custom cable.
86 needs J3 TERMPWR jumper
87 Set to SCSI ID 3. ID0 will not work.
88 Compaq XP-1000 Professional Workstation
89 Alpha 21264 CPU, 667MHz, with a QLogic SCSI controller in a PCI slot
90 SCSI-based Macintosh Powerbooks (2.5" SCSI2SD)
91 Also reported to work on Thinkpad 860 running Win NT 4.0 PowerPC.
92 AT&T 3B2/600
93 Sun 2/120 Workstation (Unit Attention disabled)
94 Data General MV/2500DC running AOS/VS
95 Vendor: MICROoP
96 Product: 1578-15 UP
97 Revision: DG02
98 Device-type modifier: 0x4c
99 Applix 1616
100 IMS MM/1
101 NeXTcube + NeXTSTEP 3.3
102 NeXTStation
103 Modified geometry settings are required to avoid "cylinder group too large" errors while formatting.
104 (To simulate Quantum Fireball 1050S)
105 512 bytesPerSector
106 139 sectorsPerTrack
107 4 tracksPerCylinder
108 4135 cylinder per volume
109 1 spare sector per cylinder
110 2051459 usable sectors on volume
111
112
113 Samplers
114
115 Roland JS-30 Sampler
116 Akai S1000, S3200, S3000XL, MPC 2000XL, DPS 12
117 SCSI cable reversed on S3200
118 There are compatibility problems with the Akai MPC3000. It works (slowly) with the alternate Vailixi OS with multi-sector transfers disabled.
119 EMU Emulator E4X with EOS 3.00b and E6400 (classic) with Eos 4.01
120 EMU E6400 w/ EOS2.80f
121 EMU Emax2
122 Ensoniq ASR-X, ASR-10 (from v3.4, 2GB size limit)
123 ASR-10 Requires TERMPWR jumper (applies to pre. 5.0 SCSI2SD boards only)
124 ASR-X resets when writing to devices > 2Gb.
125 Kurzweil K2000R
126 See kurzweil.com for size limits which a dependant on the OS version. Older OS versions have a 1GB limit.
127 SCSI cable reversed
128 Casio FZ-20M
129 Requires TERMPWR jumper. The manual shows the pin25 of the DB25 connector is "not connected".
130 May require scsi2sd-config --apple flag
131 Yamaha A5000, A3000, EX5, EX5R
132 EMU ESI4000
133
134 Other
135
136 HP 16601A, 16700A logic analyzers
137 Fluke 9100 series
138 Reftek RT-72A Seismic datalogger.
139 http://www.iris.iris.edu/passcal/Reftek/72A-R-005-00.1.pdf
140 http://www.iris.iris.edu/passcal/Manual/rtfm.s3a.13.html
141 Konami Simpson's Bowling arcade machine
142 http://forums.arcade-museum.com/showthread.php?p=3027446