SUMMARY: QIC 150 tape drive problems

From: Donald McLachlan (
Date: Wed Sep 16 1992 - 22:45:49 CDT

Sorry for the long delay with this summary, but it has taken this long to
"solve" the problem.

We wound up sending one of the tapes off to Sun. They got the same error
in the same place, in the same file, in the same block.

The thing that fooled us is we had 2 software distribution tapes from 2
different companies that we could not read on our 630, but could be read
on a 670.

Sun claims that the 670 must have more sensitive read circuitry.

FYI, if you have problems reading tapes from Verdix or IDE, it really could be
the tapes.

Thanks to the following people for their input (in order I received replies):
From: "John D. Barlow" <>
From: (Chuck Foley)
From: Peter Shipley <shipley@tfs.COM>
From: fwp@CC.MsState.Edu (Frank Peters)
From: Chris Keane <chris@rufus.state.COM.AU>
From: (Koper Jamgocyan)
From: Badri Pillai <>
From: Thomas Tornblom <Thomas.Tornblom@Nexus.Comm.SE>
From: reardon@sws.SINet.SLB.COM (Bob Reardon Maildrop 3F - x4794)
From: (Brett Chapman x7-4391)
From: (Adam Shostack)
From: (Bennett E. Todd)
From: ldavis!woden!gunn@snowbird.Central.Sun.COM (David Gunn)

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