Backup Containers: TAR, VHD & Snapshot Preservation
Consolidated tape archives, filesystem snapshots, and system restoration.
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Format Comparison & Technical Specifications
| Output Format | MIME Type | Specification | Type |
|---|---|---|---|
| BAK Database Backup | application/octet-stream | MS-SQL-BACKUP-SPEC | Microsoft SQL Database Backup |
| SQL Script Dump | application/sql | ANSI-SQL-SPEC | Relational SQL Dump File |
| QCOW2 QEMU | application/x-qemu-disk | QEMU-QCOW2-SPEC | QEMU Copy-On-Write Image |
| RAW Disk Image | application/octet-stream | QEMU-QCOW2-SPEC | Unformatted Raw Disk Image |
| TAR Tape Archive | application/x-tar | POSIX-TAR-SPEC | Consolidated Tape Archive |
| ZIP Backup | application/zip | ISO-IEC-29500 | Standard Backup ZIP |
Technical Specifications & Codec Breakdown
Why Tape Archives (TAR) Survived 40 Years
TAR (Tape Archive) was created in 1979 for magnetic tapes. Because it serializes directory trees, file ownership, and Unix permissions into a single continuous stream, it remains the foundation of Linux and container deployments today.
Snapshot Integrity & Bit Rot Prevention
Backing up files without cryptographic checksums risks silent bit rot. Modern backup pipelines verify SHA-256 hashes against snapshot manifests to ensure files restored years later are identical down to the last byte.
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