Inspecting and Identifying a Cartridge

The Super DLTtape II cartridge like other high capacity cartridges has only the supply reel inside the cartridge. The take-up reel is inside the tape drive. Designed for use with the SDLT600, the Super DLTtape II cartridge delivers a 300 GB native capacity.

StorageTek offers SDLT cartridges in a partnership with Quantum Corporation.

TABLE 5-5lists the specifications of the SDLT cartridges.

Note – The Super DLTtape I and DLTtape VS1 are both readable on the SDLT600 Tape Drive.

TABLE 5-5SDLT Cartridge Specifications

SpecificationsSDLTtape ISDLTtape II

Capacity, native

110 GB (SDLT 220)

300 GB

 

160 GB (SDLT320)

 

 

 

 

Performance

 

 

 

 

 

Read/Write speed

3.1 m/s

3.56 m/s

Search/Rewind speed

4.1 m/s

4.83 m/s

 

 

 

Format

 

 

 

 

 

Recording density (kilobits per inch)

193 kb/in (SDLT320)

 

 

 

233 kb/in

Number of tracks

448

640

Tape length (total)

854 m (2800 ft)

630 m (2066 ft)

Usable

538 m (1765 ft)

596 m (1957 ft)

 

 

 

Availability

 

 

 

 

 

Archival life

15–30 yrs

15–30 yrs

Durability

Average 1,000,000+ head passes

 

in an office/computer environment

Long-length durability (maximum)

260 full media passes

 

Uncorrected bit error rate

1 x 10-17

1 x 10-17

Permanent errors

Zero

Zero

 

 

 

Compatibility

 

 

 

 

 

Read

DLT IV, SDLTtape I

SDLTtape I, II

Write

SDLTtape I

SDLTtape II

Supported tape drives

SDLT 220/320

SDLT 320/600

VolSafe Cartridges

VolSafe (volume safe) and WORM-enabled tape drives provides write once, read many (WORM) technology to VolSafe designated cartridges. VolSafe permits new data to only append the tape media, while it prevents erasure or overwrite of previously written data.

All StorageTek T-Series tape drives are VolSafe-technology-capable and you can identify the VolSafe cartridge by the colored areas on the cartridge.

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Chapter 5 Cartridge Information 85

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Sun Microsystems SL8500 manual VolSafe Cartridges, 5SDLT Cartridge Specifications