Re: [DIYbio] Longterm genomic Data storage

Someone more awake can do the math: Assume a high-DPI scanner and
scripted resplicing of the scanned sheet. So, you pack the sheet with QR
codes at mimimum size assuming the high DPI coverage. You reduce error
correction but don't eliminate. Each QR is assumed to hold ~3kb of
binary data at max. You use a quick first-pass binary encoding scheme
for DNA, compressing it immediately by 4x, then you use a more
complicated compression scheme to maximise compression.

The human genome is, rounding up (Fermi estimation done wrong), 4
gigabases. Binary encoding gives 1 gigabyte. Compression might buy a 30%
reduction. 700Mb (700,000kb) into QR codes, assuming 6 codes per sheet
side (so 36kb per sheet), means close to 20,000 pages.

WE CAN DO EET

On 13/01/15 19:37, scocioba@gmail.com wrote:
> That would make for a really beautiful family crest. How huge do you
> think it has to be to store the entire refSeq human genome? Also the
> camera to snap that picture has to be pretty nice to counteract noise.
>
> Sebastian S. Cocioba
> CEO & Founder
> New York Botanics, LLC
> Plant Biotech R&D
> ------------------------------------------------------------------------
> From: Cathal Garvey <mailto:cathalgarvey@cathalgarvey.me>
> Sent: ‎1/‎13/‎2015 2:28 PM
> To: diybio@googlegroups.com <mailto:diybio@googlegroups.com>
> Subject: Re: [DIYbio] Longterm genomic Data storage
>
> Large QR codes on vellum.
>
> On 13/01/15 17:04, Jeswin wrote:
> > Hey all,
> > I'm kind of curious as to how companies store DNA seq data for
> > archival purposes. The company I work at has local storage, but
> > there's always issues like running out of space on the HDDs. There's
> > only so much HDDs you can buy before you need to expand the server
> > room. So what's done with old data, in case there is a need to dig it
> > out 3-5 years later? I heard most companies just limit the holding
> > time for raw data for 6 months to a year.
> >
>
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