Re: Digital collection backups

From: Randy Fischer <rf_at_nyob>
Date: Fri, 11 Jan 2013 16:45:33 -0500
To: CODE4LIB_at_LISTSERV.ND.EDU
On Fri, Jan 11, 2013 at 2:45 PM, Joshua Welker <jwelker_at_sbuniv.edu> wrote:

> Reading the Glacier FAQ on Amazon's site, it looks like they provide an
> archive inventory (updated daily) that can be downloaded as JSON. I read
> some users saying that this inventory includes checksum data. So hopefully
> it will just be a matter of comparing the local checksum to the Glacier
> checksum, and that would be easy enough to script.
>
>

One could also occasionally spin up local EC2 instances to do the checksums
in the same data center, and ship just that metadata down - you would not
incur any bulk transfer costs in that case (if memory serves).   DAITSS
uses both md5 and sha1 checksums in combination, other preservation systems
might require similar.

-Randy Fischer
Received on Fri Jan 11 2013 - 16:46:38 EST