Ian Stewart
Joined: 24/10/05
Posts: 3638
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USB/compact flash as long term storage
#698791 - 17/01/09 07:05 PM
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I thought this had been discussed recently but can't find any threads. So my question -
how reliable are USB sticks or compact flash cards for long term storage? I have had Cds
corrupt after a few years and as this is for Finale music files they really are too
valuable to risk.
I have found Zip drives very reliable, is it still worth
backing up on these? At present all my scores and parts are about 60Mb.
Any
thoughts greatly appreciated.
Many thanks.
-------------------- No longer a forum member.
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Pablo_Fanques
Joined: 03/09/04
Posts: 1065
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Re: USB/compact flash as long term storage
[Re: Ian Stewart]
#698857 - 18/01/09 12:51 AM
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SVEA
Joined: 28/12/05
Posts: 402
Loc: Norway
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Re: USB/compact flash as long term storage
[Re: Ian Stewart]
#698902 - 18/01/09 09:40 AM
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I had exactly the same thoughts recently. This link will give you some food for thought. As will this . I think there is yet to be a media invented that we
can rely on for long term storage. For audio purposes, and maybe even video, conventional
magnetic tape still holds the crown in terms of proven archival quality, but thats maybe
just because it's been around the longest. For a while yet, we are going to be shuffling
our backup-files to different media as technology 'progresses'. The thing that
goes against flash as archival storage for me is the instant failure scenario, as one gets
no warning of impending failure as described in the first link above. That said, an
archived USB stick does not need to be spun up regularly like a drive, and all the talk of
failure hinges around limited read/write cycles, although these are in the millions
now. If you were to just write a couple of times and then store, in principle,
your data should outlive you, but would you be willing to take the risk to find out on the
day you need to access your data that there is nothing there?
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ConcertinaChap
Joined: 20/07/05
Posts: 1874
Loc: Bradford on Avon
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Re: USB/compact flash as long term storage
[Re: Ian Stewart]
#698915 - 18/01/09 10:56 AM
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I agree that any digital medium cannot be held 100% reliable, though really USB sticks and
hard drives really aren't that bad. To my mind the only real safety is to have more than
one copy of anything important, ideally with one of those copies held off site. I use
three USB external hard drives, since currently my backups run to about 50Gb, one of which
spends most of its time at the office. Chris
-------------------- Put the fun back into dysfunctional.
Mr Punch's Studio
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Hugh Robjohns
SOS Technical Editor
Joined: 25/07/03
Posts: 18526
Loc: Worcestershire
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Re: USB/compact flash as long term storage
[Re: Ian Stewart]
#698943 - 18/01/09 12:30 PM
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Definitely don't rely on USB sticks or CF or any other kind of solid-state memory
devices.
I'd recommend using DVD+/-RW (or CDRW) discs, plus copies on hard
drives elsewhere.
Check them regularly (say every year) and copy the data to
new formats as and when.
Hugh
-------------------- Technical Editor, Sound On Sound
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ken long
Joined: 21/01/08
Posts: 4302
Loc: The Orient, East London
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Re: USB/compact flash as long term storage
[Re: Ian Stewart]
#698962 - 18/01/09 01:13 PM
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As above. I would add that generating some checksums before transfer will help identify
any failed or corrupt files post transfer.
ken
-------------------- I'm All Ears.
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Ian Stewart
Joined: 24/10/05
Posts: 3638
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Re: USB/compact flash as long term storage
[Re: Ian Stewart]
#699525 - 19/01/09 10:39 PM
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Thanks for all your replies, I am going to read the articles in depth.
Just one
question though; Hugh you said CDRWs, are these more secure than ordinary CDRs?
Quote Ken Long:
As above. I
would add that generating some checksums before transfer will help identify any failed or
corrupt files post transfer.
ken
Regrettably I have to admit I need to learn to do checksums but
the data is so important I think I will burn CDRWs every month if I have prepared a lot of
music scores.
-------------------- No longer a forum member.
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Jez (mahoobley)
monkey
Joined: 21/03/03
Posts: 2187
Loc: East Midlands
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Re: USB/compact flash as long term storage
[Re: Ian Stewart]
#699530 - 19/01/09 10:51 PM
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The future is the cloud! Whatever that is. Seriously though, I'm
talking online storage. With the kind of connections we are unfortunately unlikely to get
in the near future due to BT's serious lack of interest in investing in more optic fiber,
the idea of backing stuff up to remote servers in a nuclear bunker which themselves are
backed up in triplicate every 30 seconds is quite appealing. As long as they don't pass
any laws allowing the authorities to snoop through any of it that is. "If you're doing
nothing wrong you've got nothing to worry about" - fine then, I want a webcam in the Prime
Minister's bathroom.
-------------------- http://www.jeremycorbett.co.uk
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table for two
active member
Joined: 24/03/02
Posts: 5864
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Re: USB/compact flash as long term storage
[Re: Ian Stewart]
#699586 - 20/01/09 03:02 AM
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Hi Ian
I've plugged in USB flash drives, smelt smoke had that sinking
feeling, USB port fried my drive.
As Hoobs mentions, online storage (on more
than one site), also SSD drives with decent mtbf ... claimed 200+ years !!!
Hopefully the interface needed to acces these SSD drives will be around for a while.
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ef37a
Joined: 29/05/06
Posts: 5668
Loc: northampton uk
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Re: USB/compact flash as long term storage
[Re: Ian Stewart]
#699641 - 20/01/09 09:49 AM
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I like usb sticks!
Never had a problem with them and they are so cheap now,
especially in bulk that you could afford to make multiple copies. Also usb ports seem to
be a fixture on pc's so the playback technology seems unlikely to dissapear any time
soon. But I agree with the general premise, do it often and everywhere you can!
Dave.
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DePulse
Joined: 01/09/04
Posts: 340
Loc: Europe
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Re: USB/compact flash as long term storage
[Re: Ian Stewart]
#699660 - 20/01/09 10:31 AM
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Encrypt the files and mail them to yourself using GMail. Currently you can have about 7 Gb
per account. Not to be used as the only means of storage but as an additional safety
measure.
If your place burns down you have access to your files from anywhere
in the world.
-------------------- TritonExtrMOSS/EX800, NordRack2, ATC1, D550/XV5080/MKS70/MKS7/MKS50/MKS80/S550/JP8080/Ju60/JD990, Blofeld, Mopho, TG77/An1X, ESQM, Emax, Esynth, AkaiS5k/MPC1k, Indigo2, Rogue, Machinedrum, ProOne
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ken long
Joined: 21/01/08
Posts: 4302
Loc: The Orient, East London
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Re: USB/compact flash as long term storage
[Re: Ian Stewart]
#699693 - 20/01/09 12:00 PM
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Quote:
Regrettably I have
to admit I need to learn to do checksums but the data is so important I think I will burn
CDRWs every month if I have prepared a lot of music scores.
If storing on optical media, you needn't
worry about generating checksums provided you verify your disc for errors. Although,
depending on the type of process, this may or may not verify the contents against the
source.
ken
-------------------- I'm All Ears.
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ef37a
Joined: 29/05/06
Posts: 5668
Loc: northampton uk
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Re: USB/compact flash as long term storage
[Re: ken long]
#699713 - 20/01/09 12:33 PM
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Maybe it was me but I found CD RW very prone to damage to the extent that is was much
easier to buy a rake of CD R and frisbee the cockups!
Dave.
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