Accredited Standards Committee * X3, Information Technology NEWS RELEASE Doc. No.: PR/96-075 Reply to: Lynn Barra at lbarra@itic.nw.dc.us X3 Announces the Approval for a New Project, SCSI High Availability Profile (HAP) Washington D.C., September 1996 -- Accredited Standards Committee X3, Information Technology announces that technical committee X3T10 is beginning work on a new project, Technical Report for SCSI High Availability Profile (HAP). Candidates for inclusion in the HAP technical report are:

An interpretability profile for parallel SCSI components;
System-level considerations for High Availability subsystems;
Clarify the SCC description of the use of multi-LUN devices;
Clarify device identification procedures in the case of multiple access paths;
Identify characteristics needed for devices intended for use in high availability systems, including hardware, software, microcode, and device models;
Document the process and procedures used to remove and replace device and host enclosures on a SCSI bus;
Document the proper usage of "Y" cables, location of bus terminators, etc. as applicable to high availability systems;
Document methods to avoid bus glitches on power cycles;
Document when a bus reset may be used, when bus options are renegotiated, how to handle incoming bus resets, and the handling of message and command traffic when a host is running its boot or console code;
Document when certain data needs to be maintained on a per-LUN or a per- host basis in a device;
Establish guidelines for hosts in a multi-host environment to coordinate the use of mode pages, bus IDs, bus resets, and reservations; and,
Clarification of the use of multiple internal controllers inside a SCSI device to provide internal protection against device failure

Inquiries regarding this project should be sent to the Chairman of X3T10, Mr. Mr. John Lohmeyer, Symbios Logic, 4420 Arrowswest Dr., Colorado Springs, CO 80907-3444. Email: john.lohmeyer@symbios.com. The next meetings of X3T10 are November 4- 8, 1996 in Palm Springs, CA and January 6-10, 1997 in Dallas, TX. All organizations and individuals who are materially or directly affected are invited to participate. An initial call for possible patents and other pertinent issues (copyrights, trademarks) is now being issued. Please submit information on these issues to the X3 Secretariat at 1250 Eye Street NW, Suite 200, Washington DC 20005. Email: x3sec@itic.nw.dc.us FAX: (202)638-4922.

X3 Home Page