Digital Equipment StorageWorks UltraSCSI DS-BA370 Series, Руководство пользователя

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Operating the UltraSCSI Enclosure
2–4 Ultra SCSI RAID Enclosure
UltraSCSI Nodes
A node is a SCSI device that uses a SCSI bus ID. The following rules apply
to UltraSCSI nodes, such as disks, tapes, and so forth.
1. Only a controller node can use SCSI bus ID 7.
2. Only a controller node can use SCSI bus ID 6.
3. No node can use SCSI bus IDs 4, 5, 13, 14, or 15
4. An UltraSCSI bus cannot support 5.25-inch devices.
5. The maximum bus transfer rates are device dependent.
a. A bus with all UltraSCSI devices has a maximum transfer rate of
40 MB/sec.
b. A bus with one wide (16-bit), FAST 10, SCSI devices (–VW
suffix) installed, has a maximum transfer rate of 20 MB/sec.
c. A bus with one narrow (8-bit), FAST 10, SCSI devices (–VA
suffix) has a maximum transfer rate of 10 MB/sec.
5. The valid device SCSI bus IDs are device type dependent.
a. An UltraSCSI device can use device addresses 0 through 6 or
8 through 14.
b. A wide (16-bit), FAST 10, SCSI devices (–VW suffix) can use
device addresses 0 through 6 or 8 through 14.
c. A narrow(8-bit), FAST 10, SCSI devices (–VA suffix) can use
device addresses 0 through 6.