Chapter 3 Description
Tape Drives
Scalar i2000 User’s Guide 96
LTO Drives 3
Three generations of LTO drives are supported, but they are not fully
compatible as shown in
Table 16.
All LTO cartridges are the same size, which means they use the same
magazines in the library.
LTO drives can be directly attached to hosts, attached to the SAN, or
connected to FC I/O blades in the I/O management unit. SCSI drives
must be directly attached to hosts or to the SAN.
Table 16 LTO Drive and
Cartridge Compatibility
LTO-1
Cartridges
LTO-2
Cartridges
LTO-3
Cartridges
LTO-3
WORM
LTO-4
Cartridges
LTO-4
WORM
LTO-1 Drives Reads/
Writes
Not
compatible
Not
compatible
Not
compatible
Not
compatible
Not
compatible
LTO-2 Drives Reads/
Writes
a
a.LTO-2 drives do not reformat LTO-1 cartridges. The drives will write to the cartridges in the LTO-1 format
(100 GB capacity).
Reads/
Writes
Not
compatible
Not
compatible
Not
compatible
Not
compatible
LTO-3 Drives Reads
b
b.LTO-3 drives only read LTO-1, they do not write to the LTO-1.
Reads/
Writes
c
c.LTO-3 drives do not reformat LTO-2 cartridges to contain the same density as the LTO-3 cartridges (400 GB).
The LTO-3 drives will write to the LTO-2 cartridges in the LTO-2 format (200 GB capacity).
Reads/
Writes
Write Once,
Read Many
d
d.LTO-3 WORM requires the installation of library firmware and WORM-supported LTO-3 tape drive code
Not
compatible
Not
compatible
LTO-4 Drives Not
compatible
Reads Reads/
Writes
Reads/
Writes
Reads/
Writes
Write Once,
Read Many
e
e. LTO-4 WORM requires the installation of the library firmware and WORM-supported LTO-4 tape drive
code.
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