Tandberg Data FC420 Bridge Option User’s Guide
Document T6423053-01, Ver. 1, Rel. 0
November 2002
6
Cabling the M2500 Library for Fibre Channel
SDLT/LTO Drive Cabling with a 1-GB SAN
0
For example, if you have SDLT or LTO drives and a 1 GB SAN,
Quantum recommends a ratio of one tape drive per FC420 SCSI port.
This means that three- and four-drive libraries would require a second
FC420 Fibre bridge, and five- and six-drive libraries would require
three FC420 bridges, as shown in
Figure 3
.
Figure 3 One-Drive-Per-
FC420-Port Cabling
SDLT/LTO Drive Cabling with a 2-GB SAN
0
If the M2500 library with SDLT or LTO drives is connected to a 2-GB
SAN, Tandberg Data recommends a maximum ratio of 2 tape drives
per FC420 SCSI port. This means that one FC420 Fibre bridge could
manage up to four tape drives, but a second FC420 Fibre bridge would
be required for libraries with five or six tape drives.
Note:
SDLT and LTO tape drives are sometimes referred to as
Superdrives
.
Drive 2
Drive 1
Drive 4
Drive 3
Drive 6
Drive 5
FC420
FC420
FC420
SCSI controller
SCSI
SCSI
SCSI
1-GB SAN
Fibre
Primary
electronics
module
Auxiliary
electronics
module
M2500
SCSI
SCSI
SCSI
SCSI
Fibre
Fibre
Terminator