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Storage FAQ Part 1



Frequently Asked Questions about computer mass storage, disk, tape, RAID, file systems, hierarchical storage management

This FAQ about PC storage was compiled and written by Rodney D. Van Meter with numerous contributions by others.

Information on disk, tape, MO, RAID and SSD can be found in part 1 of the FAQ. Part 2 covers file systems, hierarchical storage management, backup software, robotics, benchmarking, MTBF and miscellaneous topics.

Part I: Intro

-1 Editor's Note
storage FAQ: 1 Editor's Note
-2 Disclaimer
storage FAQ: 2 Disclaimer
-3 Original Editor's notes
storage FAQ: 3 Original Editor's notes
-4 Truly Frequently Asked Questions
storage FAQ: 4 Truly Frequently Asked Questions

Part II: Tape

-5.1 Cartridge vs Cassette
storage FAQ: Cartridge vs Cassette
-5.2 Longitudinal
storage FAQ: Longitudinal
-5.3 Serpentine
storage FAQ: Serpentine
-5.4 Helical Scan
storage FAQ: Helical Scan
-5.5 Tape Media Lifetimes (Longevity)
storage FAQ: Tape Media Lifetimes (Longevity)
-5.6 9-track
storage FAQ: 9-track
-5.7.1 New IBM Tape (NTP) 3590
storage FAQ: .1 New IBM Tape (NTP) 3590
-5.7 3480/3490/3490E
storage FAQ: 3480/3490/3490E
-5.8 Magstar Coyote (IBM 3570)
storage FAQ: Magstar Coyote (IBM 3570)
-5.9.1.1 TapeStor
storage FAQ: .1.1 TapeStor
-5.9.1 Travan
storage FAQ: .1 Travan
-5.9 QIC
storage FAQ: QIC
-5.10 4mm
storage FAQ: 4mm
-5.11.1 Mammoth (EXB-8900)
storage FAQ: .1 Mammoth (EXB-8900)
-5.11.2 Sony SDV-300
storage FAQ: .2 Sony SDV-300
-5.11 8mm
storage FAQ: 8mm
-5.12.1 DLT7000
storage FAQ: .1 DLT7000
-5.12.2 DLT4000
storage FAQ: .2 DLT4000
-5.12.3 DLT2700 (from DEC)
storage FAQ: .3 DLT2700 (from DEC)
-5.12.4 DLT2000 (from DEC (now Quantum))
storage FAQ: .4 DLT2000 (from DEC (now Quantum))
-5.12 DLT {full}
storage FAQ: DLT {full}
-5.13 MountainGate (was Metrum) VHS
storage FAQ: MountainGate (was Metrum) VHS
-5.14 VCR VHS
storage FAQ: VCR VHS
-5.15 19MM (D1 and D2)
storage FAQ: 19MM (D1 and D2)
-5.16.1 DATATAPE
storage FAQ: .1 DATATAPE
-5.16.2 Sony
storage FAQ: .2 Sony
-5.16 ID-1
storage FAQ: ID-1
-5.17 D-2
storage FAQ: D-2
-5.18 StorageTek Helical
storage FAQ: StorageTek Helical
-5.19 Optical
storage FAQ: Optical
-5.20 D-6
storage FAQ: D-6
-5.21 D-3
storage FAQ: D-3
-5.22.1 GY-2120
storage FAQ: .1 GY-2120
-5.22 Sony DTF
storage FAQ: Sony DTF
-5.23 DATATAPE DTR-48
storage FAQ: DATATAPE DTR-48

Part III: Disk

-6.1 CAV, ZCAV and CLV
storage FAQ: CAV, ZCAV and CLV
-6.2 Optical
storage FAQ: Optical
-6.2.1.1 DVD (Digital Versatile Disk) (Next-Generation CD)
storage FAQ: .1.1 DVD (Digital Versatile Disk) (Next-Generation CD)
-6.2.1.2 GIANT CD-ROMS
storage FAQ: .1.2 GIANT CD-ROMS
-6.2.1 CD-ROM
storage FAQ: .1 CD-ROM
-6.2.2.1 Sony
storage FAQ: .2.1 Sony
-6.2.2 WORM
storage FAQ: .2 WORM
-6.2.3.1 Magneto-Optical Physics
storage FAQ: .3.1 Magneto-Optical Physics
-6.2.3.2 Sony MiniDisc
storage FAQ: .3.2 Sony MiniDisc
-6.2.3.3 Magneto-optical, 5.25-inch
storage FAQ: .3.3 Magneto-optical, 5.25-inch
-6.2.3.4 Magneto-optical ZCAV, 5.25-inch
storage FAQ: .3.4 Magneto-optical ZCAV, 5.25-inch
-6.2.3.5 HP Corsair
storage FAQ: .3.5 HP Corsair
-6.2.3.6 Maxoptix T4-1300
storage FAQ: .3.6 Maxoptix T4-1300
-6.2.3.7 Pinnacle Micro
storage FAQ: .3.7 Pinnacle Micro
-6.2.3.8 Asaca HSMO
storage FAQ: .3.8 Asaca HSMO
-6.2.3.10 3.5-inch MO
storage FAQ: .3.10 3.5-inch MO
-6.2.3.10 Sony
storage FAQ: .3.10 Sony
-6.2.3.11 Nikon 12-inch MO
storage FAQ: .3.11 Nikon 12-inch MO
-6.2.3.12 Sony 12-inch MO
storage FAQ: .3.12 Sony 12-inch MO
-6.2.3.13 NEC 12-inch MO
storage FAQ: .3.13 NEC 12-inch MO
-6.2.3 Erasable
storage FAQ: .3 Erasable
-6.2.5.1 Panasonic/Toray
storage FAQ: .5.1 Panasonic/Toray
-6.2.5 Dual Function
storage FAQ: .5 Dual Function
-6.3 Magnetic
storage FAQ: Magnetic
-6.3.1.1 Seagate
storage FAQ: .1.1 Seagate
-6.3.2.1 IBM
storage FAQ: .2.1 IBM
-6.3.3 Hard Disk Manufacturers
storage FAQ: .3 Hard Disk Manufacturers
-6.3.5 Floptical
storage FAQ: .5 Floptical
-6.3.6.1 SyQuest EZ135
storage FAQ: .6.1 SyQuest EZ135
-6.3.6.2 Iomega Zip
storage FAQ: .6.2 Iomega Zip
-6.3.6.3 Iomega Jaz
storage FAQ: .6.3 Iomega Jaz
-6.3.6.4 SyQuest Removable Cartridge hard Drives
storage FAQ: .6.4 SyQuest Removable Cartridge hard Drives
-6.3.6.5 Kalok removable cartridge hard drives
storage FAQ: .6.5 Kalok removable cartridge hard drives
-6.3.6 PC Removables
storage FAQ: .6 PC Removables
-6.3.7 Mainframe
storage FAQ: .7 Mainframe

Part IV: RAID

-7 RAID {Full}
storage FAQ: 7 RAID {Full}
-7.1 RAID Levels
storage FAQ: RAID Levels
-7.2 RAID-6
storage FAQ: RAID-6
-7.3 John O'Brien and RAID-7
storage FAQ: John O'Brien and RAID-7
-7.4 RAID Papers
storage FAQ: RAID Papers
-7.5 R-Squared
storage FAQ: R-Squared
-7.6 Sun
storage FAQ: Sun
-7.7 Clariion
storage FAQ: Clariion
-7.8 BayDel
storage FAQ: BayDel
-7.9 the RAIDbook
storage FAQ: the RAIDbook
-7.10 Software Striping
storage FAQ: Software Striping
-7.11 RAID Vendors
storage FAQ: RAID Vendors

Part V: Solid State Disk

-8 Solid State Disk (SSD) Frequently Asked Questions (FAQ)
storage FAQ: 8 Solid State Disk (SSD) Frequently Asked Questions (FAQ)

Part VI: Other Devices

-9.1 Holographic Storage Products
storage FAQ: Holographic Storage Products
-9.2 TeraStor
storage FAQ: TeraStor

Part VII: RAIT

-10.1 DataVast (was VastNSS)
storage FAQ: 10.1 DataVast (was VastNSS)
-10 RAIT (Redundant Arrays of Inexpensive Tape)
storage FAQ: 10 RAIT (Redundant Arrays of Inexpensive Tape)

Part VIII: RAOT

-11 RAOT (Redundant Arrays of Other Things :-)
storage FAQ: 11 RAOT (Redundant Arrays of Other Things :-)









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