ESSArch Digital Archive vs HuskHoard

ESSArch Digital Archive is an open-source solution for long-term preservation of digital information. It is storage independent and can be integrated into an existing environment. Its OAIS-compliant archival model covers pre-ingest, ingest, preservation, access, data management, administration, and management; individual components can also be used separately. Documented workflows include preparing and submitting information packages, receiving and approving ingests, accessing storage units, and disseminating material. Archive maintenance functions include appraisal, format conversion, archival description management, and migration between storage targets. A REST API documents endpoints for descriptions, events, packages, search, storage, profiles, notifications, and orders. Deployment documentation covers Docker and Python installation, plus an automatic installer for several listed Linux distributions. Supported server systems also include Windows Server 2019. The software is free and open source; service and support are regulated through a maintenance contract. ESSArch was founded in 2002 and is headquartered in Saltsjö-Boo, Sweden. Its stated customers include public- and private-sector organizations, including the National Archives of Sweden and Norway.

HuskHoard is a free Linux tool for moving cold data to LTO tape, spinning drives, or cloud storage while keeping files visible to the operating system. Its policy engine can identify cold files by age, extension, or directory policy. When an application requests an archived file, Linux fanotify can trigger a real-time recall. StreamGate can serve video from tape or S3 through a local HTTP bridge with Range requests; the site names Plex, Jellyfin, and VLC as compatible players.

The single CLI binary runs in user space without kernel modules or root daemons and requires Linux kernel 5.1 or later. It supports SCSI LTO-5 through LTO-9 and rclone replication to 40+ providers. Payloads use Zstd streams verified by BLAKE3, and individual files can be rolled back to earlier versions. A scheduled BLAKE3 scrubber checks offline storage. The open-source core costs nothing, under AGPL v3. A web dashboard, Prometheus integration, advanced replication policies, and dedicated support with SLAs are listed as coming soon.