#Spideroak deduplication software

Also, use a lot of error correcting codes, they will allow you to repair your corrupted data! Long answer In the meantime, you can use scientifically proven resilient optical mediums for cold storage like Blu-ray Discs HTL type like Panasonic's, or archival grade DVD+R like Verbatim Gold Archival, and keep them in air-tight boxes in a soft spot (avoid high temperature) and out of the light.Īlso be REDUNDANT: Make multiple copies of your data (at least 4), and compute hashes to check regularly that everything is alright, and every few years you should rewrite your data on new disks. Some projects are aiming to do that, like the Rosetta Disks project of the Long Now museum, although they are still very costly and with a low data density (about 50 MB). There's currently no fail-proof and scientifically proven way to guarantee 30+ years of cold data archival. Digital data decay and dies, just like any other thing in the universe.

It's impossible to guarantee a long timeframe because of entropy (also called death!).

USCSF is transferring all their original tapes - many in now-obsolete formats like BetaSP and VHS - to the 75Mbit motionJPEG2000 format.

The first problem is picking data formats for maximum longevity.

print on acid-free paper with pigment inks and store in a cool, dry and dark place.both the media AND the format can become unreadable.Aside from the difficulty of emulating the original code, a major issue was that the still images had been stored on the laserdisc as single-frame analogue video, In 2002, there were great fears that the discs would become unreadable as computers capable of reading the format had become rare and drives capable of accessing the discs even rarer.

#Spideroak deduplication software

Issues of hardware and software (and data formats).

Typical example of irretrievable degradation of magnetic media.

Which suggests you should not rely on a single copy on a single medium. Stuff on ftp, and let the rest of the world mirror it Only wimps use tape backup: _real_ men just upload their important Black Actinic Inks are chemically stable and feature an inorganic pigment that has no tendency to absorb impurities like other ink pigments can. These permanent, non-fading inks are resistant to light, heat and water, and contain no impurities that can affect the permanence of paper or photographic materials. 20th century paper and most modern paper is usually made from wood pulp, which is often acidic and does not keep for long periods.

or acid free, therefore lasting hundreds of years. Older papers were made from materials such as linen and hemp, and so are naturally alkaline. Other than archival ink on archival paper in sealed storage, no current medium is proven to last an average 100 years without any sort of maintenance. Industrial tape drives seem like a viable option?.I can't help but think that storing data on a couple of 1TB hdd's and then expecting them to spin up correctly a decade or two later to be a terrible idea.They seem to be very fragile and seem to lose their data a very short time even when in pristine condition. CD-R/DVD-Rs have proven to me, even in the short term, to be a terrible medium for backups.Should not require maintenance (if at all possible).They are there for emergency or 'for future generations' purposes. Further, there is no expectation of needing to read these archives.(i.e., if you suggest hard drives, they will not be spinning). Media will not be active during the timespan.Answers can be 'no-compromise/industrial' solutions or practical solutions for the home office/small business user.Lets say I want to store family photos/videos and want people do be able to find them in storage 100 years from now and still be able to use them.How do you store financial/critical records that should survive anything but a fire and should be available for decades?.There have been other similar questions, but none with the same criteria.