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'''ZuluSCSI'' is a comparatively new family of SCSI device emulators. Distinct features to older, similar devices is support for Wide-SCSI, Ultra-Speed, and a fast CPU.
'''ZuluSCSI''' by Rabbit Hole Computing is a comparatively new family of SCSI device emulators featuring an SD card based backing store. Distinct features to older, similar devices is support for Wide-SCSI, Ultra-Speed, and a fast CPU.


ZuluSCSI also features an OpenSource firmware, so it can be extended comparatively easily.
ZuluSCSI also features an OpenSource firmware, so it can be extended comparatively easily.


__TOC__
For details, refer to the web links below.
 
== Current state ==
In the scope of AS/400's, ZuluSCSI's disk support is still in its infancy, while CD- and tape emulation are seemingly solid. Some progress has been made, but there are still some rough edges, normally leading to crash of the Operating System with a given ''System Reference Code''.
 
At the moment, the firmware supports only a single DASD device type.
 
=== Reports ===
* 2026-08-16, mikerm, 9406-170, Zulu firmware 2026-08-07. Trying to install V4R4 on the Zulu emulated DASD. Disk was created with <code>dd if=/dev/zero of=HD6.img bs=522 count=17177940 status=progress</code><ref>Per directions of one of the firmware developers.</ref>
** First try, ''prefetch'' setting at default (8k): halts at <code>B1934505</code> after IPL takes place from DASD
** Second try, ''prefetch'' set to 0: <code>B6080801</code> after IPL takes place from DASD. More progress, and much quicker LIC install, though.
** Configuration file used:
[SCSI]
LogModeData = 1
System = AS400_BS522


== See also ==
== See also ==
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== Weblinks ==
== Weblinks ==
* [https://github.com/ZuluSCSI/ZuluSCSI-firmware/blob/main/README-as400.md README-as400.md], ZuluSCSI-firmware, GitHub
* [https://zuluscsi.com ZuluSCSI Website] — see the <tt>☰</tt> button top right for more details
* [https://zuluscsi.com ZuluSCSI Website] — see the <tt>☰</tt> button top right for more details
* [https://github.com/ZuluSCSI/ZuluSCSI-firmware ZuluSCSI-firmware], GitHub
* [https://github.com/ZuluSCSI/ZuluSCSI-firmware ZuluSCSI-firmware], GitHub

Latest revision as of 21:52, 22 September 2026

ZuluSCSI by Rabbit Hole Computing is a comparatively new family of SCSI device emulators featuring an SD card based backing store. Distinct features to older, similar devices is support for Wide-SCSI, Ultra-Speed, and a fast CPU.

ZuluSCSI also features an OpenSource firmware, so it can be extended comparatively easily.

For details, refer to the web links below.

See also

Weblinks

Footnotes

Retrieved from "http://try-as400.pocnet.net/index.php?title=ZuluSCSI&oldid=1842"