Digital Equipment 300 Series AXP Reference Manual page 224

RX26 Diskette Specifications
Storage
Capacity
SCSI ID Switch
Settings
B–4
The following table lists the storage capacity of an RX26
unformatted diskette, depending on the density of the diskette:
Diskette
Double density (DD)
8.89 cm (3½ inches)
High density (HD)
8.89 cm (3½ inches)
Extra density (ED)
8.89 cm (3½ inches)
For proper communication between your system and an RX26
drive, your RX26 must have a unique SCSI address setting.
SCSI address settings are determined by the position of
electrical switches located on the sides of the drive.
The SCSI-ID Address Setting
When your RX26 drive arrives from the factory, it should be
preset to the recommended SCSI setting of 5, as shown in
Figure B–1. Figure B–1 also shows all possible SCSI ID settings
for the RX26 drive.
SCSI ID 7 is reserved for the host SCSI controller.
Capacity
737,280 bytes per drive
4608 bytes per track
1,474,560 bytes per drive
9216 bytes per track
2,949,120 bytes per drive
Note
Read/Write
Capability
Read
Read/write
Read/write