collier@triton.unm.edu (Michael Collier) (11/08/90)
we have a Mountain Computer Inc. "FileSafe 2100-D" 2048 Mb 8mm DAT drive, as distributed by DEC. it is daisy-chained off of a Decstation 3100 as a SCSI device. the problem is that it goes off line at the drop of a hat, and requires a power cycle in order to recover. has anyone had enough experience with this make/model to tell me whether this is "normal"? any workarounds? please e-mail. thanks in advance -- Michael H. Collier INET: collier@ariel.unm.edu BITNET: COLLIER@UNMB home: 1160 Don Pasqual NW; Los Lunas, NM 87031; (505) 865 8770 work: UNM CIRT; 2701 Campus Bvd; Albuquerque, NM 87131; (505) 277 8039
de5@ornl.gov (Dave Sill) (11/08/90)
In article <1990Nov7.200419.25168@ariel.unm.edu>, collier@triton.unm.edu (Michael Collier) writes: >we have a Mountain Computer Inc. "FileSafe 2100-D" 2048 Mb 8mm DAT >drive, as distributed by DEC. DAT is 4mm. 8mm is Exabyte. >it is daisy-chained off of a Decstation >3100 as a SCSI device. the problem is that it goes off line at >the drop of a hat, and requires a power cycle in order to recover. >has anyone had enough experience with this make/model to tell me >whether this is "normal"? any workarounds? please e-mail. thanks >in advance I haven't seen that yet with ours, but we haven't had it very long. -- Dave Sill (de5@ornl.gov) Martin Marietta Energy Systems Workstation Support
collier@triton.unm.edu (Michael Collier) (11/09/90)
In article <1990Nov8.131229.21054@cs.utk.edu> Dave Sill <de5@ornl.gov> writes: >In article <1990Nov7.200419.25168@ariel.unm.edu>, collier@triton.unm.edu (Michael Collier) writes: >>we have a Mountain Computer Inc. "FileSafe 2100-D" 2048 Mb 8mm DAT >>drive, as distributed by DEC. > >DAT is 4mm. 8mm is Exabyte. so how does "Exabyte" technology differ from "DAT" technology? may i assume that our drive is not a "digital/analog tape" (DAT), but something else entirely? >>it is daisy-chained off of a Decstation >>3100 as a SCSI device. the problem is that it goes off line at >>the drop of a hat, and requires a power cycle in order to recover. >>has anyone had enough experience with this make/model to tell me >>whether this is "normal"? any workarounds? please e-mail. thanks >>in advance > >I haven't seen that yet with ours, but we haven't had it very long. > >-- >Dave Sill (de5@ornl.gov) >Martin Marietta Energy Systems >Workstation Support a followup: problem solved. i had several responses indicating this device works fine on Decstation 5000 class machines. no one seems to use it on 3100s. just as well: they don't work on 3100s. we switched ours to a 5000, and everything is ok now. thanks for all the help. -- Michael H. Collier INET: collier@ariel.unm.edu BITNET: COLLIER@UNMB home: 1160 Don Pasqual NW; Los Lunas, NM 87031; (505) 865 8770 work: UNM CIRT; 2701 Campus Bvd; Albuquerque, NM 87131; (505) 277 8039
de5@ornl.gov (Dave Sill) (11/12/90)
In article <1990Nov8.232544.1296@ariel.unm.edu>, collier@triton.unm.edu (Michael Collier) writes: >In article <1990Nov8.131229.21054@cs.utk.edu> Dave Sill <de5@ornl.gov> writes: >>In article <1990Nov7.200419.25168@ariel.unm.edu>, collier@triton.unm.edu (Michael Collier) writes: >>>we have a Mountain Computer Inc. "FileSafe 2100-D" 2048 Mb 8mm DAT >>>drive, as distributed by DEC. >> >>DAT is 4mm. 8mm is Exabyte. > >so how does "Exabyte" technology differ from "DAT" technology? may i >assume that our drive is not a "digital/analog tape" (DAT), but something >else entirely? The FileSafe 2100 is an 8mm (Exabyte) drive. The tapes used are standard 8mm videotapes (consider buying them from the local K-Mart at a fraction of what DEC charges), but the transport is different than that used in 8mm video. It was developed by Exabyte, who, as far as I know, still makes all of the drives used for data storage. DAT (Digital Audio Tape) is a different story. The tapes and transports used for DAT are the same for both audio and data applications, and are made by several different manufacturers. DAT tapes are half the width of Exabyte tapes: 4mm. -- Dave Sill (de5@ornl.gov) Martin Marietta Energy Systems Workstation Support