Table 5. Supported Functions of Compatible Media Types (continued)
LTO
cartridge
Gen
Tape
length
nominal
(m)
Data
capacity
native
1
(TB)
Data
capacity
compressed
2
(TB)
Power
®
Vault
Gen
LTO9
Power
Vault
Gen
LTO8
Power
Vault
Gen
LTO7
Power
Vault
Gen
LTO6
Power
Vault
Gen
LTO5
Power
Vault
Gen
LTO4
Power
Vault
Gen
LTO3
3 WORM 680 400 800 GB No No
No
No RO Yes Yes
2 609 200 GB 400 GB No No
No
No No RO Yes
1 609 100 GB 200 GB No No
No
No No No RO
1 319 50 GB 100 GB No No
No
No No No RO
1 203 30 GB 60 GB No No
No
No No No RO
1 97 10 GB 20 GB No No
No
No No No RO
* In any tape product with M8 cartridges, the minimum LTO8 tape drive rmware version is HB82.
1
1 GB = 1 000 000 000 bytes.
2
Compression Ratio
• 2.5:1 = LTO9, LTO8, LTO7, LTO6
• 2:1 = LTO5, LTO4, and LTO3
3
RO = Read Only
LTO Type M Cartridge (M8)
The LTO Program introduced a new capability with LTO8 tape drives: the ability to write 9 TB (native) on
a brand new LTO Ultrium 7 cartridge instead of 6 TB (native) as specied by the LTO7 format. Such a
cartridge is called an LTO7 initialized LTO Type M cartridge. These LTO Type M cartridges are identiable
by using an automation bar code label that ends with the last 2 characters “M8”.
Table 6. LTO7 and LTO8 Cartridge Types
Cartridge/Density
type
Bar code label Cartridge
Packaging/
Silkscreen
labeling
Native capacity Tape Drive
compatibility
L9 xxxxxxL9 LTO Ultrium 9 18 TB LTO9
L8 xxxxxxL8 LTO Ultrium 8 12 TB LTO9, LTO8
M8 xxxxxxM8 LTO Ultrium 7 9 TB LTO8
L7 xxxxxxL7 LTO Ultrium 7 6 TB LTO7, LTO8
From now on, these cartridges are referred to as L9, L8, M8, and L7.
Only new, unused LTO Ultrium 7 cartridges can be initialized as M8 cartridges. When a cartridge is
initialized as M8, it cannot be changed back to L7. Initialized M8 cartridges can be written and read only in
an LTO8 tape drive. LTO7 tape drives cannot read initialized M8 cartridges.
22
Dell PowerVault LTO Tape Drive: User's Guide
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