You do need to maintain your own index of the data you upload to Glacier, AWS does maintain an inventory of all of your archives for backup and disaster recovery purposes. The inventory represents the state of your vault at the time of the most recent check for write operations since the last vault inventory.
When it comes to security, all data stored in Glacier can be managed through the AWS Identity and Access Management service by setting up a policy that specifies which users have access to various vaults. Data is encrypted on the server-side, and Glacier takes care of key management and protection.
What About Storing Data that I Touch Yearly, If That?
There’s always data that you access only rarely. Not just cold data, but ice-cold data that you need to keep but can store in a deep freeze or, rather, deep storage. Glacier has you covered.
AWS Glacier S3 Deep Storage Archive is designed to store large amounts of data that you might access only once or twice a year. It’s stored across three or more availability zones.
Pricing is less than standard S3 Glacier storage, ranging from about $0.00099 per GB/month or $1 per TB/month. AWS notes that pricing is competitive with off-premise archival tape storage services.
If you need data from Glacier Deep Storage, you will have access to it within 12 hours or less, eliminating often-unreliable tape drives and the need to migrate data to other sources from your IT to-do list.
Because AWS builds its services using common data storage technologies that are assembled into cost-optimized systems that use AWS-developed software, the Amazon S3 Glacier storage service delivers maximum efficiency. This ensures you have a reliable, always-on, low-cost cloud storage service for data archiving and long-term backup.
We want to be sure you understand all that Amazon Web Services has to offer, so be sure to check out other blogs in our AWS 101 series.