Hesela / Structured knowledge

Storage Knowledge Corpus

Storage definitions, connected to their evidence.

1611 terms · Page 54 of 54

A-Z

  1. Term

    Zip drive

    The Zip drive is a removable magnetic disk cartridge format of the 1990s, with 100, 250 and 750 MB media presented to the operating system as a block device with 512-byte sectors.

    JSON

  2. Term

    Zone Append

    The native NVMe Zone Append command writes at a controller-selected position within a specified zone and returns the assigned starting logical block address on successful completion.

    JSON

  3. Term

    Zone capacity

    Zone capacity is the maximum number of logical blocks that may be written within a zone.

    JSON

  4. Term

    Zone Finish

    Zone Finish is a zone management operation that moves a sequential zone to the Full state, so the zone accepts no further writes until it is reset.

    JSON

  5. Term

    Zone map (min-max index)

    A zone map is a per-region summary of column-value bounds that lets a reader skip regions that cannot satisfy a query predicate.

    JSON

  6. Term

    Zone Random Write Area

    A Zone Random Write Area is an optional bounded region associated with a ZNS zone that permits non-sequential writes.

    JSON

  7. Term

    Zone Reset

    Zone Reset is a zone management operation that returns a sequential zone to the Empty state with its write pointer at the zone start, discarding its data.

    JSON

  8. Term

    Zone size

    Zone size is the number of logical blocks in a zone's address extent, which may exceed its writable capacity.

    JSON

  9. Term

    Zone write locking

    A Linux mechanism that serializes covered write requests to the same sequential zone using a per-zone lock.

    JSON

  10. Term

    Zone write plugging

    Zone write plugging is a Linux block-layer mechanism that queues writes per sequential zone so that at most one write to each zone is in flight.

    JSON

  11. Term

    Zone write pointer

    A zone write pointer marks the sequential-write position of a zone when its current state makes that pointer valid.

    JSON

  12. Term

    Zoned bit recording (ZBR)

    Zoned bit recording groups HDD tracks into radial zones with different sector counts per track, typically assigning more sectors to outer tracks.

    JSON

  13. Term

    Zoned block device (ZBD)

    A zoned block device exposes a logical block address space divided into zones with zone-specific access rules.

    JSON

  14. Term

    Zoned namespace

    A zoned namespace is an NVMe namespace whose logical address space follows the ZNS command set's zone organization and write constraints.

    JSON

  15. Term

    Zoned namespaces (ZNS)

    Zoned Namespaces (ZNS) is an NVMe command set that organizes a namespace into zones with explicit write-placement and reuse rules.

    JSON

  16. Term

    ZOR filter

    A ZOR filter is a static membership structure that continues stalled XOR-style peeling by abandoning keys and handles missed members in an auxiliary structure.

    JSON

  17. Term

    zram

    zram is a Linux block-device driver that provides compressed RAM-backed storage with optional writeback to a configured backing device.

    JSON

  18. Term

    Zstandard

    Zstandard is a lossless compression format and codec that stores data in frames with optional external dictionaries and content checksums.

    JSON

  19. Term

    Zstandard dictionary ID

    A Zstandard dictionary ID is a numeric label used to select and check the external dictionary expected by a compressed frame.

    JSON

  20. Term

    Zstandard window size

    Zstandard window size is a frame parameter that bounds references into previously decoded frame data and determines decoding-history requirements.

    JSON

  21. Term

    zswap

    zswap is a Linux compressed-memory cache for swap pages that can defer writes to a backing swap device.

    JSON