Making your pictures last forever

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How best to store and preserve information isn’t exactly a new problem. Yes, right now the question is more prescient because there’s more information floating around our world than there ever has been, but history bears out that information storage and loss is something that we’ve battled with for millennia, for as long as we’ve had language, in fact.

The Minoans might’ve thought that they’d done a great job of recording their society using the Linear A script on clay tablets, except that the language died out and we can’t decipher it. We’ve still got the tablets, but not a clue what they say. You never know, the key to Linear A might have been in the Great Library at Alexandria, but the library’s contents, mostly written on papyrus and parchment and almost certainly including works that we don’t even know about, were lost in a massive conflagration. In one instance we have the data but not the language; in another we still have the language, but not the data.

In the age of digital media, those same two problems still present themselves. We might lose the data, or we might lose the ability to decode it. You never know, we might lose both.

There’s been oodles of column-space devoted to discussing the most secure methods for storing digital images, and how many backups you need and in how many forms; I’ve recently embarked on archiving a not-insubstantial project, and one of the first discussions that I had with the records office concerned the most appropriate format in which to save the information; the conundrum of what to do about artefacts that are on deteriorating original media and we’re struggling to preserve owing to copyright concerns needs to be solved pretty quickly. Chances of a simple, easy solution to these problems? I’d put the odds at slim-to-none.

So when I read the following statement in a press release, I couldn’t help but feel that it was a bit disingenuous: ‘…customers will now have the option to take their media from analog to digital to the [insert company name here] cloud, ensuring that photos and videos truly last forever.’ No, it wasn’t just PR hyperbole; at least not when it was followed by ‘… [insert company name here] can give you the peace of mind that your photos and videos are secure and always accessible.’

I remember seven inch floppy discs from when I was in primary school, about 25 years ago; since then we’ve raced through three-and-half inch floppies, CDs, USB sticks, and now we’re into cloud storage. Do we really think that this is where it ends? I’m not convinced.

Forever is a very long time.

And it was only today that a British on-line image storage company, Fotopic, went into liquidation. No one seems to know for sure how many images are now trapped in the aether, inaccessible to the people who stored them there, but estimates are between 30,000 and 70,000. One hopes that these customers had the good sense to make backups elsewhere.

So forgive me, perhaps, if I’m a bit sceptical about the security of on-line or cloud-based information storage firms and if I have a moment of nostalgia for analogue cameras, which give you the original and the backup as soon as you develop the film. Even so, they’ll end up as dust one day, just as the gorgeous frescoes excavated from the ash and mud at Pompeii and Herculaneum will, too.

What it comes down to is that I don’t think that you can make your pictures last forever; it’s not the way that the universe works. Empires come and go and languages fade away; the best that you can do is to give them as many opportunities to survive fire and theft and hard drive failure and loss of language and format shifts and magnetic electron realignment as you can. So have them printed, burn them to disc, save them on two separate hard drives, email them to yourself, and hope for the best.

You see, nothing lasts forever.

(All the images were taken at the remains of the Roman city of Volubilis in Morocco.)

Comments

Anonymous
Anonymous

You understate the importance and value of cloud-based back-up services. Regardless of whether one provider has gone through, cloud-based back-up is still an extremely valid and worthwhile back-up option. Simply backing up to two external drives, emailing photos to yourself, and so on isn't sensible.

Backing up to two additional drives protects you from drive failure, but not (necessarily) fire, burglary, flood, etc. Email photos to yourself might be useful if you use keep your email on-line as well as locally, but it's not suitable for backing-up hundreds or thousands of images - the restore process would be too unwieldy.

I keep files in four locations: on my laptop, on an external drive (that comes with me when the laptop doesn't), on an external drive that I store at my bank (updated every three months), and with a cloud-based back-up service. Belt and braces, yes, but at least I know that I have at least two full back-ups if one storage method fails, and I've got another almost-full back-up that would get back an increasing number of images if Hell broke loose.

Analogue cameras don't give you a particularly reliable back-up over the long-term unless you're very careful about storage. Print fade, and negatives can end up stuck to the plastic storage sleeves.

If you keep all of your back-ups in the same location, you haven't backed-up - you're not taking seriously enough.

Floppy discs, by the way, were either 8, 5.25 or 3.5 inch, not 7.

Anonymous
Anonymous

I think you may have misunderstood the central message in this post. I believe
the gist of the article is that the nature of things is that making data last
forever is a Very Hard Problem, and just trusting an on-line facility to do that
can be risky - especially when you can't make an informed assessment of their
financial capacity and IT infrastructure.

The article raises the point that there are more considerations to take into
account than just whether to trust cloud storage or not. Even if the data on
the media persists - utilizing that data may not be trivial. File formats
change, software changes. Keeping your data useful is important to pay
attention to. Cloud based services are certainly part of that - but refreshing
your file formats, knowing what you have and what tools can manipulate it are
equally important.

There's a lot of factors to take into account - off-site backups need to be
chosen to provide the service you need. For example, it's important to remember
that speed of retrieval is vital. If you lose all your data, but find it takes
a week to download it all through your connection, that may be a problem. Can
you select just what to back up? What's the time granularity? If a disaster
happens and I really need production code back - going to my bank for a disk is
by far too much time to waste, but it's small enough that a hot spare machine,
or cloud storage would make sense. My music? I can do without that for a few
days while it trickles back in.

Similarly - physical media that one owns oneself - not always so reliable.
If you have cds you burned a few years ago for backup purposes, chances are
some of that media has already degraded to the point where some data is
no longer retrievable. Refreshing the physical media regularly is needed,
and performing test-restores.

It doesn't even have to be about data loss. Even large companies can make
migrating your data harder than it ought to be - see Google Video's impending
shutdown for a very recent example of this.

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