Optical Disks

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2 total messages Started by Erstad Mon, 23 Jun 1986 21:05

#183

Author: Erstad
Date: Mon, 23 Jun 1986 21:05

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We (and a number of other Apollo sites) are rapidly finding that using
magnetic tape as a backup medium is becoming impractical.  We are
primarily Electronic CAD, and presently have about 4.8 Gb of disk
storage, with lots of projected growth.

Has anyone had experience using a high density optical (WORM type) drive
on an Apollo system?  I would prefer a Multibus interface but will look
at an AT-Bus system.

Key features needed are high density (i.e.  > than the 120 MB we can get
on a tape), stability of the media for archival purposes, and cost/unit
of the optical media itself (must be low enough for use as a backup and
frequent archival media).  Drive cost is not as big of a concern.

As they say, "Thanks in advance"

Dave Erstadd Honeywell SSED

The views expressed are my own only

Re: Optical Disks

#184

Author: JW-Peterson
Date: Tue, 24 Jun 1986 04:52

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801 bytes

Are you using 6250 bpi drives?  We are using a kennedy 9400 drives here
to backup about 2.5 Gb of disk.  We found switching to the 6250 drive made
a major improvement in doing the backups here.
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