Product specifications

154
Connecting MRS Enclosures with Storage Expanders
This procedure describes how to connect two MRS enclosures that
include storage expanders to a channel to provide local or buffer
storage. Figure 9-15 shows a diagram of the connections.
To install MRS enclosures with storage expanders:
1. Use a 68- to 68-pin differential SCSI cable to connect the Avid
Media Processor to an MRS that includes a storage expander and
three drives:
a. Plug one end of the cable into a differential SCSI connector on
the Avid Media Processor.
b. Plug the other end into a differential SCSI port on the MRS
that includes a storage expander.
2. Use 68- to 68-pin differential SCSI cables to connect each
remaining MRS enclosure that includes a storage expander:
a. Plug one end of a differential cable into a differential SCSI
connector on the back of the previously installed MRS that has
a storage expander.
b. Plug the other end of the cable into a differential SCSI
connector on the back of the next MRS that has a storage
expander.
c. Repeat steps a and b, using additional differential cables to
connect the second MRS that has a storage expander to the
third, the third to the fourth, and so on.
c
Connect no more than two MRS enclosures that contain storage
expanders.
3. Use a 68- to 68-pin single-ended SCSI cable to connect each MRS
that has a storage expander to an MRS that contains only drives.
a. Plug one end of the cable into a single-ended SCSI port on an
MRS that includes a storage expander.