User's Guide

Chapter 3 System Specifications
Drive Requirements and Compatibility
Scalar i2000 Planning Guide 56
LTO Drives 3
Although all four generations of LTO drives are supported in the library,
the drives are not fully compatible (both read/write) as shown in
table 17
on page 56.
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 storage area network (SAN), or connected to FC I/O
blades in the I/O management unit. SCSI drives must be directly
attached to hosts or the SAN.
Table 17 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
Write Once,/
Read Many
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.