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The HSM (Hierarchical Storage Management) at AWI provides
- (nearly) unlimited storage space and
- two replicates on tape (in different buildings for security) and
- a third copy on disk (for selected data, smaller files for faster access) → VTL (Virtual Tape Library, Silent Brick)
- for a (comparable) low cost
However, there are two caveats:
- Your (larger) Data is archived on tape, so it will take a few minutes to get it back (unless it is online or has a disk-copy).
- You need a project to archive your data (apply for a project here: eResources).
HSM at AWI
Four domains for tape archiving at AWI |
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Domain | | Purpose | Path | Disk Copy | Description | How to apply | Usage | Purpose |
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A | (mainly) PANGAEA and RegistryPANGAEA | /hs/platforms |
| Archive of sensor.awi.de | Permanent archive for irrecoverable data. Metadata is needed for this domain. Please contact PANGAEA | on how on how to submit your data. | /hs/usero /hs/pangaea | | PANGAEA | P | Open to all users | Projects | /hs/projects /hs/s3projects | | Project data | Long term project data with predefined life time. A project can be created with eResources https://cloud.awi.de/#/projects The setgid on directories ensures that new (sub-)directories belong to the project (POSIX) group automatically | IB, IP | Desaster recovery | Daily (or weekly) automatic replication of online project data from the Isilon (when selected in eResources) in Bremerhaven and Potsdam, respectively | D | Internal IT stuff | For internal IT use (used for additional backups and storing of expired user/project data) | Domain | Path | Disk Copy | Description | How to apply |
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A | /hs/platforms |
| Archive of sensor.awi.de | Only possible with sufficient metadata, see links.
| /hs/usero /hs/pangaea | | PANGAEA | P | /hs/projects /hs/s3projects | | Project data | Please use eResources to create a project and request storage resources. | C | Depricated
| /hs/usera /hs/userc /hs/userm |
| Have vanished early 2020 |
| IB, IP | Desaster recovery | /hs/isirep-... | | Project replica from the Isilons (Bhv, Pot) | Disaster recovery only | Daily (or weekly) automatic replication of online project data from the Isilon (when selected in eResources) in Bremerhaven and Potsdam, respectively. Used for disaster recovery only (=hopefully never ). | D | Internal IT stuffD | /hs/backup | | samfs-dumps, ScoutFS-dumps, logfiles, Veeam | IT internal use only | /hs/store | | 10-year storing of expired user and project data | /hs/s3gateway |
| experimental storage |
A disk copyis available for specific (smaller) files for some file systems. This allows a fast significantly faster access of offline files. The availability of this disk archive depends on the actual resources/usage and might change. |
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- Three Dell R760xd server (hssrv2[a-c].dmawi.de)
- 4 Brocade (32Gb) 6610 SAN switches
- 270 TB SSD primary cache (Dell ME5084-SSD)
- 488 TB extended HDD-cache (Dell ME5084-HDD)
- Ab Ende Planed for end of 2024:
1120 TB Virtual Tape Library (VTL) Silent Brick von Fast-LTA - Controller G5200
- SAS Switch
- 7x SilentBrick Max
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