dwc@homxc.UUCP (10/07/87)
i seem to remember reading somewhere about a tape backup device that uses vhs or 8mm tapes that could hold on the order of 1Gbyte of storage. does anyone out there have any info about this? i would like to know about reliability, cost, etc. please send e-mail if you can. thanks, danny chen ihnp4!homxc!dwc
tom@felix.UUCP (Tom Lockwood) (10/13/87)
In article <1609@homxc.UUCP> dwc@homxc.UUCP (D.CHEN) writes: > >i seem to remember reading somewhere about a tape backup >device that uses vhs or 8mm tapes that could hold on the >order of 1Gbyte of storage. > >does anyone out there have any info about this? i would >like to know about reliability, cost, etc. 1. VHS - The VLDS (Very Large Data Store) uses one premium-grade T-120 VHS cassette can store 5.2G bytes. (expect 10G bytes in '88). Bit error rate of 1 in 10e12. Will not overwrite existing data, must use bulk erase first for protection of data. Interfaces: SCSI or proprietary TTL interface. Cost: Evaluation units $44,000. Production units $18,900 OEM quantities. Who: Honeywell Inc., Test Instruments Dev., 5105 E 41st Ave., Denver, CO 80216 (303) 773-4581. 2. 8-mm - EXB-8200 stores 2.332G bytes on a 8-mm videotape cartridge. System includes tape drive, controller, 256k-byte buffer, and embedded SCSI interface. Fits in full-height, 5 1/4" form factor. Bit error rate of less than 1 error per 10e13 nonrecoverable. Cost: Evaluation unit $3500, less than $1000 per unit large OEM quantities. Who: Exabyte Corp., 4876 Sterling Dr., Boulder, CO 80301 (303) 442-4333 3. Digital Audio Tape (DAT) - 1G byte. Bit error rate better than one in 10e12. Who: Hitachi Corp., Japan I have no interface, cost, or address on this one. Tom Lockwood {decvax,ucbvax}!hplabs!felix!tom -- Tom Lockwood hplabs!felix!tom "We are upping our standards, ...so up yours". Pat Paulsen for President, 1988.
msf@amelia (Michael S. Fischbein) (10/13/87)
In article <9392@felix.UUCP> tom@felix.UUCP (Tom Lockwood) writes: > >1. VHS - The VLDS (Very Large Data Store) uses one premium-grade > T-120 VHS cassette can store 5.2G bytes. (expect 10G bytes in '88). > Interfaces: SCSI or proprietary TTL interface. > Cost: Evaluation units $44,000. > Who: Honeywell Inc., Test Instruments Dev., 5105 E 41st Ave., > Denver, CO 80216 (303) 773-4581. This unit is designed to replace instrumentation recorder for telemetry and experimental data recording, not as a computer tape drive. If used as a computer peripheral, it has one serious flaw: it needs a MINIMUM data input of 1 Megabyte/sec (and can handle up to 2M/sec per channel). Honeywell said they would have a start-stop capable unit available "near the end of 1988." This also has a version that comes with manipulators and tape storage carrells that offers Terabytes of "on-line" (that is, automated access) storage. >Tom Lockwood >{decvax,ucbvax}!hplabs!felix!tom Michael Fischbein msf@prandtl.nas.nasa.gov ...!seismo!decuac!csmunix!icase!msf These are my opinions and not necessarily official views of any organization.