QIC capacities?

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2 total messages Started by Ronald Sakaguchi Sun, 10 Jan 1993 22:48

#81

Author: Ronald Sakaguchi
Date: Sun, 10 Jan 1993 22:48

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What are the current capacities for QIC tape drives? Will a QIC 150
drive write a 525MB tape to full capacity or does that require a
different drive? Is the size only related to the length of the tape or
other factors? Also, is it possible to append onto existing files on a
QIC tape?

Thanks!


>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>><<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<
  Ronald Sakaguchi                       University of Minnesota
  Minnesota Dental Research Center       16-212 Moos Health Sciences Tower
  for Biomaterials and Biomechanics      Minneapolis, MN  55455
	        		         mg26101@s1.msi.umn.edu		
>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>><<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<

Re: QIC capacities?

#82

Author: Dave Olson
Date: Mon, 11 Jan 1993 01:01

25 lines
1645 bytes

In <C0nu13.MtD@news2.cis.umn.edu> mg26101@i1.msi.umn.edu (Ronald Sakaguchi) writes:
| What are the current capacities for QIC tape drives? Will a QIC 150

QIC150 gets ~150 MB on DC6150, and aprox ~250 MB on DC6250.

Drives up through QIC1350 (1.35 GB native) are available now, with up to
2.1GB 'soon', although not yet from SGI.

| drive write a 525MB tape to full capacity or does that require a
| different drive? Is the size only related to the length of the tape or

QIC525 tapes can only be written on a QIC525 or higher drive.  Up through
at least 2100, the drives can read and write in all formats down
to QIC150 (QIC120 for some), and read QIC24.

| other factors? Also, is it possible to append onto existing files on a
| QIC tape?

It is possible to append new files to QIC tape (following the last FM),
but  not to append in the sense that tar 'r' or 'u' needs, because that
requires the ability to do overwrite.
--
Let no one tell me that silence gives consent,  |   Dave Olson
because whoever is silent dissents.             |   Silicon Graphics, Inc.
    Maria Isabel Barreno                        |   olson@sgi.com

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