I think we have a winning idea here. Thanks.
Josh Welker
-----Original Message-----
From: Code for Libraries [mailto:CODE4LIB_at_LISTSERV.ND.EDU] On Behalf Of Randy Fischer
Sent: Friday, January 11, 2013 3:46 PM
To: CODE4LIB_at_LISTSERV.ND.EDU
Subject: Re: [CODE4LIB] Digital collection backups
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 - 18:03:02 EST