Data Management Policy Summary
Categories: Data Management, Data Transfer, File Systems
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Users must agree to the full Data Management Policy as part of their account application. The “Data Retention, Purge, & Quotas” section is useful and is summarized below.
Data Retention, Purge, & Quota Summary
|User-Centric Storage Areas|
||NFS||User-controlled||10 GB||Yes||No||90 days|
||HPSS||User-controlled||2 TB ||No||No||90 days|
|Project-Centric Storage Areas|
||NFS||770||50 GB||Yes||No||90 days|
||Lustre®||700 ||10 TB||No||14 days||14 days|
||Lustre®||770||100 TB||No||90 days||90 days|
||Lustre®||775||10 TB||No||90 days||90 days|
||HPSS||770||100 TB ||No||No||90 days|
|Area||The general name of storage area.|
|Path||The path (symlink) to the storage area’s directory.|
|Type||The underlying software technology supporting the storage area.|
|Permissions||UNIX Permissions enforced on the storage area’s top-level directory.|
|Quota||The limits placed on total number of bytes and/or files in the storage area.|
|Backups||States if the data is automatically duplicated for disaster recovery purposes.|
|Purged||Period of time, post-file-creation, after which a file will be marked as eligible for permanent deletion.|
|Retention||Period of time, post-account-deactivation or post-project-end, after which data will be marked as eligible for permanent deletion.|
 In addition, there is a quota/limit of 2,000 files on this directory.
 Permissions on Member Work directories can be controlled to an extent by project members. By default, only the project member has any accesses, but accesses can be granted to other project members by setting group permissions accordingly on the Member Work directory. The parent directory of the Member Work directory prevents accesses by “UNIX-others” and cannot be changed (security measures).
 In addition, there is a quota/limit of 100,000 files on this directory.