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  • Unreadable LAVC Tapes

    From Daiyu Hurst@21:1/5 to All on Mon Jul 19 20:46:32 2021
    Now that I can stretch out, I decided to revisit two of the LAVC tapes. It appears they are in BACKUP_RESTORE format. Here are the tape names:

    12/30/2005 05:45 AM 10,416,478 r19p4-bad-src.tap
    12/30/2005 05:23 AM 23,748,048 tape-brms-format.tap

    So first I tried 'tape-brms-format.tap' and got this: -----------------------------------------------------------------------------------------------------------------------
    OK 23:27:21 0.215 0.000
    backup_restore @@ -mt 0 -index
    [BACKUP_RESTORE Rev. 19.4.5 Copyright (c) Prime Computer, Inc. 1985]
    **** Processing catalog : W.1 ****
    **** Processing catalog : W.2 ****
    **** Processing catalog : W.3 ****
    **** Processing catalog : W.4 ****

    List of tapes required to restore "@@".
    Tape name: W.4, reel(s): 1 2 4 5

    **** Checking mounted reel ****
    Error 3055:
    Invalid use of "ARCHIVE" tape in BACKUP_RESTORE command

    List of tapes required to restore "@@".
    Tape name: W.4, reel(s): 1 2 4 5

    Please mount one of the tapes on MT0.
    Press <return> when ready (or QUIT) :q
    OK 23:28:07 4.009 2.266 -----------------------------------------------------------------------------------------------------------------------
    Then I tried the 'r19p4-bad-src.tap' tape: -----------------------------------------------------------------------------------------------------------------------
    as mt0
    Device MT0 assigned.
    OK 23:37:04 0.039 0.006
    backup_restore @@ -mt 0 -index
    [BACKUP_RESTORE Rev. 19.4.5 Copyright (c) Prime Computer, Inc. 1985]
    **** Processing catalog : W.1 ****
    **** Processing catalog : W.2 ****
    **** Processing catalog : W.3 ****
    **** Processing catalog : W.4 ****

    List of tapes required to restore "@@".
    Tape name: W.4, reel(s): 1 2 4 5

    **** Checking mounted reel ****
    Error 3061:
    Unable to use this tape :Unknown format tape. (BACKUP_RESTORE)
    Do you want help? -----------------------------------------------------------------------------------------------------------------------

    My kung fu is not strong enough, it seems.
    -Dai

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  • From Daiyu Hurst@21:1/5 to Daiyu Hurst on Mon Jul 19 21:04:40 2021
    On Monday, July 19, 2021 at 11:46:33 PM UTC-4, Daiyu Hurst wrote:
    Now that I can stretch out, I decided to revisit two of the LAVC tapes. It appears they are in BACKUP_RESTORE format. Here are the tape names:

    12/30/2005 05:45 AM 10,416,478 r19p4-bad-src.tap
    12/30/2005 05:23 AM 23,748,048 tape-brms-format.tap

    There's one more:

    12/30/2005 06:08 AM 15,677,954 mrm001-unreadable.tap

    When I look at a dump of these in Windows using a utility to strip the high-order bit, I can see VOL1 tape labels:

    P000VOL1NSB ARCHIVE PRIME COMPUTER P0000000f0000sLABEL 0000000000

    I seem to recall someone saying that R19.4 seemed incomplete. Maybe the missing bits are here; this looks like parts of the RJE system:

    * The RJQ Command Help File !!!
    * Copyright (c) 1982, Prime Computer, Inc., Natick, Ma 01760
    0RJQ:( All emulators )
    0--
    0RJQ <filename queuenameor-LISTor
    0-CANCELentry or-RESETentry>
    0*
    The RJQ command is used to queue a specified file( filename ) for transmission via a specified queue ( queuename ).Frequently, the queue name will be the same as the site name, to which the file is to be sent.
    *
    When the'filename' & 'queuename'parameters are not supplied, then
    *
    -LISTcauses the current RJE queue to be listed.
    *
    -CANCELentry causes the specified entry to be deleted from the
    RJE queue.
    *
    -RESETentry causes the specified entry to be retransmitted from
    0the beginning- if it was previously aborted.
    *
    The additional features of the RJQ command are described in Chapter 2 of the RJE manual.The command operates within the RJOP in exactly the same way as the Primos level command.
    0*

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  • From Dennis Boone@21:1/5 to All on Mon Jul 19 23:39:27 2021
    12/30/2005 05:45 AM 10,416,478 r19p4-bad-src.tap
    12/30/2005 05:23 AM 23,748,048 tape-brms-format.tap

    Do Jim and I have all of these? I think perhaps not?

    So first I tried 'tape-brms-format.tap' and got this: -----------------------------------------------------------------------------------------------------------------------
    OK 23:27:21 0.215 0.000
    backup_restore @@ -mt 0 -index
    [BACKUP_RESTORE Rev. 19.4.5 Copyright (c) Prime Computer, Inc. 1985]

    Try ARCHIVE_RESTORE. BRMS had a couple of different tools and tape
    format variations. These seem to have been written with ARCHIVE instead
    of BACKUP.

    I have an ARCHIVE tape that doesn't restore correctly -- I get the heads
    of the files, but not the tails. Not sure if it's because the restore
    is hosed, or if the save was incomplete. BRMS was a heap of fertilizer,
    and everyone knew it. I regret using it to save some things back then.

    De

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  • From Daiyu Hurst@21:1/5 to Dennis Boone on Tue Jul 20 04:50:41 2021
    On Tuesday, July 20, 2021 at 12:39:33 AM UTC-4, Dennis Boone wrote:
    12/30/2005 05:45 AM 10,416,478 r19p4-bad-src.tap
    12/30/2005 05:23 AM 23,748,048 tape-brms-format.tap
    Do Jim and I have all of these? I think perhaps not?

    I'll throw it up on Giggle Drive an send a link...

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