How does level of RAID affect it?
Raid can only take care of a certain level of failiure 
RAID 5 (striped set with parity) will fail when two failures happen(two
disks die or in this case tapes)
And so on, but they will all fail at a certain level.
For NAMAS and FDA standards they usually want a paper copy, in a fire
proof safe guarded by the us military!
(slight over exaggeration but not far off!)
A customer had all there records on floppies and tapes for the past five
years (real time data capture)
The inspectors came in and failed them because there was not a
'permenant copy'
Th ecompany had to buy a lot of extra gear and employ quite a few people
to 'print out' the data.
It took them five more years to do this!
All digital storage has limitations (mind you so does all storage!)
People put tom much faith in error correction and don't have enough
backups.
How valuable is the data.
Vogon a data retreival company have a saying about securing data that is
in a way also true of storing data.
Is your data worth more then the disk drive?
If yes then to completely erase the data 'melt it in a furnace'
If not whats the problem?
Is your data (pictures) worth more to you then the cost of multiple
types of storage media and multiple
Storage places?
If not whats the problem?
Alan

-----Original Message-----
From: Paris, Leonard [mailto:[EMAIL PROTECTED]] 
Sent: 29 August 2002 19:11
To: '[EMAIL PROTECTED]'
Subject: RE: Digital vs.FILM: will digital cameras lose the war?


Depends what level of raid you use.

Len
---

-----Original Message-----
From: Alan Abbott [mailto:[EMAIL PROTECTED]]
Sent: Thursday, August 29, 2002 1:08 PM
To: [EMAIL PROTECTED]
Subject: RE: Digital vs.FILM: will digital cameras lose the war?




>I keep my images on a RAID system, so individual disk life is a non
issue.
>Any critical data is handled this way.    Think about all the
>companies/institutions/etc. that need to keep data for long peroids of
time.
>There are systems to do this, and the data is 100% preserved.

We had a saying,
'To keep data for a few months, use DAT/DLT'
'to keep data for a few years, USE optical'
'To keep data for longer use Paper!'
Alan


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