Hi everyone,


At this week’s “Designing Storage Architectures” meeting at the Library of Congress, there was a good discussion on using cloud storage. The issue was raised that in considering using cloud storage, an organization should consider how difficult or easy it is to get your data out. How easy is it to migrate to another system? What’s the cost to download your data? It should be assumed that you’ll want to get your data out at some point, whether because you are moving to another system or the cloud provider decides to stop offering the service (or goes out of business). Examples: In August, CrashPlan announced it was ending its home cloud storage, giving customers 60 days to get their data out or move to their business service: https://blog.code42.com/data-protection-needs-diverge/   In 2014, the cloud provider Nirvanix went out of business, giving its customers two weeks to get their data out. https://www.networkworld.com/article/2173255/cloud-computing/cloud-computing-cloud-s-worst-case-scenario-what-to-do-if-your-provider-goes-belly-up.html


It's not likely that Amazon will cease its cloud storage offerings, but what if they decide to no longer offer Glacier because they want to allocate more funds to another area in their business? Or they raise the cost so it’s no longer sustainable for you to keep your data there? It’s a good idea to keep an exit strategy in your back pocket, regardless of which third party provider you use.


Disclosure: Digital Bedrock is a managed digital preservation service.






Linda Tadic

Founder and CEO

Digital Bedrock

PO Box 86311

Los Angeles, CA 90086-0311

Email: [log in to unmask]

tel. (888) 938-7386 x700


From: The NDSA organization list [mailto:[log in to unmask]] On Behalf Of McCain, Edward
Sent: Thursday, September 21, 2017 7:56 AM
To: [log in to unmask]
Subject: Re: [NDSA-ALL] Glacier question-repost


Hi All,


This is a great question. We’re testing the use of Glacier in addition to a local networked attached storage system for our digital photojournalism archive. I’m wondering how this type of cloud storage compares with a LOCKSS system, for example.




Edward McCain | Digital Curator of Journalism

Founder, Dodging the Memory Hole / JDNA

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w (573) 882-8049 | m (573) 818-5970


From: The NDSA organization list <[log in to unmask]> on behalf of "Castro, Eleni" <[log in to unmask]>
Reply-To: The NDSA organization list <[log in to unmask]>
Date: Thursday, September 21, 2017 at 9:42 AM
To: "[log in to unmask]" <[log in to unmask]>
Subject: Re: [NDSA-ALL] Glacier question-repost


Hi Marci,


Thanks for asking this question!


I hadn't seen the responses to your question and I am tasked with looking into this for our institution as well. Would you be willing to share the responses you have received?






Eleni Castro

OpenBU & ETD Librarian

Boston University Libraries


From: The NDSA organization list <[log in to unmask]> on behalf of Marci Hahn-Fabris <[log in to unmask]>
Sent: Thursday, September 21, 2017 10:21:23 AM
To: [log in to unmask]
Subject: [NDSA-ALL] Glacier question-repost



Apologies for posting this again, as I just noticed the subject line was missing...my original post was rejected and in the repost it seems I forgot it.  Many thanks to those who have already answered this question, your thoughts and info are much appreciated!



On Tue, Sep 19, 2017 at 3:12 PM, Marci Hahn-Fabris <[log in to unmask]> wrote:

Hello all,


Apologies for cross posting.


We are in the early stages of moving towards better digital preservation, and have a couple of questions.  We are hoping to move to Preservica or another tool in the next year or two, so we are working on measures to get us in good standing until that happens.


We are using the NDSA Levels of Preservation tool, trying to fully comply with Level 1, and wonder if using Glacier counts as: 2 complete copies that are not collocated. 


Half of us think yes, the others no.


A colleague pointed out that the NDSA Levels were a few years old now, and maybe did not reflect using the cloud for preservation.  Does anyone know if this document will be updated in the future?


I would love to hear from others who are doing DIY preservation, using Glacier (or not), and your thoughts, recommendations, or cautionary tales. 





Marci Hahn-Fabris
Digital Collections Librarian
Wellesley College

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