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Paper is cheap, paper archival isn't Archival medium/Estimated cost per megabyte Paper: $10.00 Microfiche: $1.20 12-inch WORM optical disk: 0.11 51/4-inch optical disk: 0.09 Near-line archival tape: 0.01 WORM optical disks once were the only electronic storage media approved by the Securities and Exchange Commission. Now the write-once, read-many-times media faces lower-cost competition from tape cartridges that mimic WORM disks, according to a storage industry official.
Paper is Paper: WORM optical disks once were the only electronic storage media approved by the Storage Technology Corp. of Louisville, Colo., has developed nonrewritable, nonerasable The VolSafe tape drives and media have logical as well as physical protection against VolSafe cartridges also have a yellow notch that alerts human operators and tape drives The PowerHorn is StorageTeks library storage module, which stands 8 feet high and The Social Security Administration maintains 28 PowderHorn storage silos at its A robotic arm mounted in the third-generation silos can grab a cartridge, mount it in Im afraid were going to have to weld it to the floor pretty soon, As of this June, agencies had bought 669 StorageTek PowerHorn tape libraries, 5,368
cheap, paper archival isnt
Archival medium/Estimated cost per
megabyte
$10.00
Microfiche: $1.20
12-inch WORM optical disk: 0.11
51/4-inch optical disk:
0.09
Near-line archival tape: 0.01
Securities and Exchange Commission. Now the write-once, read-many-times media faces
lower-cost competition from tape cartridges that mimic WORM disks, according to a storage
industry official.
archival tape drives and media to prevent accidental or purposeful erasure of data, said
Joel Brunson, federal systems director for StorageTek.
unwanted overwrites. The logical security comes from microcode on the tape transport and a
bit setting put on the tape leader at the time of initialization, Brunson said.
to treat them as WORM media. StorageTek will make the VolSafe drives initially for its
RedWood transport subsystems and 50G helical tape cartridges. The RedWood subsystems
attach via SCSI or Escon channels to StorageTek PowderHorn robotic tape silos.
measures 12 feet in diameter.
Woodlawn, Md., campus, StorageTek officials said. Each tape silo can hold up to 6,000 tape
cartridges.
the tape transport and return it to the library as many as 450 times per hour, Brunson
said.
because the torque is going to lift it, he said.
StorageTek 18/36-track tape drives, 1,112 TimberWolf tape transport subsystems and 286
RedWood transport systems, Brunson said.
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