Interface Requirements; How To Use This Interface Manual; General Interface Description - Seagate ST11200 Product Manual

Product Manual - Disc Drive SCSI-2/SCSI-3 Interface (Vol. 2; Ver. 2), Rev. E
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1.0

Interface requirements

1.1

How to use this interface manual

This specification is designed to provide a universal detailed description of the SCSI interface for those disc
drive products whose Product Manuals (Volume 1) do not contain the details of how the SCSI interface is
implemented by that drive.
Note: Volume 1 Product Manuals have tables in Section 11 that specify which SCSI-1 or SCSI-2/SCSI-
3 features they implement, what the default parameters are for the various features they implement
and which parameters are changeable and which are not.
No method exists at present to inform an initiator if a target supports "SCSI-3" features as opposed
to only SCSI-2 features. A few "SCSI-3" features are supported by Seagate drives, but no attempt has
been made herein to differentiate between SCSI-2 and "SCSI-3" features. Therefore, when an Inquiry
command reports what the ANSI approved version of the drive is, it reports either SCSI-1 or SCSI-2,
where "SCSI-2" means SCSI-2 features plus some "SCSI-3" features.
No attempt is made in this universal specification to specify which descriptions or tables apply to SCSI-1 and
which to SCSI-2 or SCSI-3. The combination of this general specification with the details in the Section 11
tables of the individual drive Product Manual (Volume 1) provides a description of the individual drive imple-
mentation of the SCSI interface.
This interface manual is not intended to be stand-alone text on SCSI-1 or SCSI-2/SCSI-3 features. Refer-
ence must be made back to the individual drive Product Manuals to find out what are SCSI-1 and what are
SCSI-2/SCSI-3 features.
This specification is Volume 2 of a set of manuals that is made up of separate drive Product Manuals (Volume
1) and this manual. This Volume 2 Manual is referenced by other Volume 1 Product Manuals representing the
drives listed below.
Product Manuals for the following models reference this volume: ST11200N/ND/NC, ST1980N/ND/NC,
ST1830N, ST1950N, ST3500N, ST3600N, ST3610N/ND/NC, ST12400N/ND/NC, ST12400 Wide, ST11900N/
ND/NC, ST31200N/ND/NC, ST31200 Wide, ST11950N/ND, ST11950W/WD, ST12450W/WD,ST12550N/
ND, ST12550W/WD, ST15150N/ND, ST15150W/WD, ST3655N, ST3550W, ST3390N and ST3285N,
ST32430N/ND/NC, ST32430W/WD/WC, ST15230N/ND/NC, ST31250N/ND, ST31250W/WD/WC, ST32151N,
ST31051N, ST32550N/ND, ST32550W/WD/WC, ST3471N, ST410800N/ND, ST410800W/WD.
1.2

General interface description

This Product Manual describes the Seagate Technology, Inc. subset of the SCSI (Small Computer Systems
Interface) as implemented on the Seagate built disc drives listed above. The interface is compatible with the
SCSI Interface Specifications of the ANSI SCSI-1 standard, the ANSI SCSI-2 Standard and the common
command set (CCS) document, Revision 4.B. The disc drives covered by this Product Manual are classified
as "Intelligent" peripherals.
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