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Vol. 1 No. 4 June 2002

DLT Cartridges

There's a lot of talk about whether to stay with DLT or to migrate to competing tape formats. A more plebeian concern is what kind of DLT tape cartridge to purchase? The following table highlights some of the major differences between the DLT tape cartridges. A look at Quantum-approved DLT formats. Prices pulled from COMPANY CAPACITY, NATIVE, COMPRESSED (DRIVE TYPE) TRANSFER RATE (NATIVE COMPRESSED) COLOR TAPE TYPE ARCHIVAL STORAGE DURABILITY(AVERAGE HEAD PASSES) AVERAGE PRICE PER CARTRIDGE SuperDLT tape 1 110GB, 220GB (SDLT 220) 11MB/s 22MB/s Green Advanced Metal Powder > 30 years 1,000,000 $132.33 DLT tape IV 40GB, 80GB (DLT 8000) 6MB/s 12MB/s Black Metal Powder > 30 years 1,000,000 $61.09 DLT tape IIIxt 15GB, 30GB (DLT 8000) 1.25MB/s 2.5MB/s White Metal Powder > 30 years 1,000,000 $35.81 DLT tape III 10GB, 20GB (DLT 8000) 1.5MB/s 3.0MB/s Gray Metal Powder > 20 years 500,000 $30.40

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    Lawrence Livermore National Labs is pushing the envelope with a new storage cluster that mates 115TB of networked disk with a massive cluster of 600 dual Pentium 4 servers.

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