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Re: [ARSCLIST] Backing up to HD in some kind of [relatively] reliable fashion?
Hard disks are rated with a MTBF (mean time between failure) which is
typically around 300,000 hours. However, these are projections and don't
predict when individual drives will fail. Unless you are using a RAID
system with hot-swappable drives and have a tape backup system and an IT
department that can manage these systems, I wouldn't rely on hard disks as
a sole or primary method of archiving anything.
There is an explanation of MTBF at
At 11:31 PM 4/24/2003 -0400, you wrote:
I am about to archive some shows I am working on, and this LACIE
Firewire 120 GB drive looks awfully appealing at $400 CND. I hate CDs
and don't trust their reliability - even the Gold ones. OK...I admit I
am the stone tablet type, so given that, and keeping that in
mind...What's the scoop on hard drives? I know a number of places,
including the National Library of Canada, are archiving to HD and at
least getting rid of the pesky CD.
I assume these drives need to be exercised: at what interval?
Are some kinds of drives considered more reliable than others?
What's the scoop on Magneto Optical and [the apparently upcoming] Ultra
Density Optical? I've heard over the years MO is the most reliable of
backup media, but expensive. Perhaps things have changed?
Thanks, and best regards,
David Seubert, Curator
Performing Arts Collection
Davidson Library Special Collections
University of California
Santa Barbara, CA 93106
(805) 893-5444 Fax (805) 893-5749