Veritas Access Cloud Storage Tiering Solutions Guide
Amazon Glacier considerations and retrieval options
Adding an Amazon Glacier type tier to a scale-out file system creates a vault in Amazon Glacier.
The Amazon Glacier tier is an offline tier. Read, write, and truncation file operations fail with an EIO error for files moved to the Amazon Glacier tier.
When files are moved to an Amazon Glacier tier, an archive is created per file. If you want to read or modify the data that is moved to Amazon Glacier, move back the data to on-premises using Storage> tier move start or using policies. See the Amazon Glacier website for storage and retrieval costs.
The maximum file size for moving files to Amazon Glacier is 4 GB.
The Amazon Glacier cloud tier usage statistics are not immediately reflected.
Amazon Glacier archive retrieval options:
Expedited - Retrievals typically complete within 1-5 minutes.
The expedited option is expensive and you should use it conservatively.
Files moved from the Amazon Glacier tier with the expedited option might return the following error:
InsufficientCapacityException (503 service unavailable)
This error occurs if there is insufficient capacity to process the expedited request. This error only applies to expedited retrievals and not to standard or bulk retrievals.
Standard - Retrievals typically complete within 3-5 hours.
Bulk - Retrievals typically complete within 5-12 hours.