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Glossary

A category used for the Blocks & Files Glossary document.

Iceberg

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Iceberg - Apache Iceberg format tables, are used in big data and enable SQL querying. Query engines such as Spark, Trino, Flink, Presto, Hive, Impala, StarRocks, and others can...

Hudi

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Hudi - Apache Hudi (Hadoop Upserts Deletes and Incrementals)is an open-source framework for building transactional data lakes with processes for ingesting, managing, and querying large volumes of data. Uber...

Resilvering

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Resilvering - In the ZFS file system the process of moving data from one disk drive device in a ZFS storage pool (RAIDz poo)l to another device is known...

SCSI

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SCSI - Small Computer Systems Interface pronounced as 'Scuzzee.' It is an interconnect standard for PCs and servers linking to peripheral devices, such as disk drives and SSDs, and...

UFS

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UFS - Universal Flash Storage is a drive specification for smart phones, digital cameras and similar devices. It's the size of a (very) large fingernail and replaces earlier...

Namespace

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Namespace - In NVMe terms a namespace is a set of logical block addresses (LBAs) on an NVMe SSD and they form a logical partition. There can be more...

Copilot

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Copilot - A copilot is an application that uses modern AI and large language models (LLMs) like GPT-4 to assist people with complex tasks. Microsoft first introduced the concept...

Wear Leveling

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Wear Leveling - the process inside an SSD of preventing heavily-used blocks of cells being worn out through high write rates by moving the data to less used blocks,...

APU

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APU - Accelerated Processing Unit - a processing chip which combine the functionalities of a CPU (Central Processing Unit) like an X86 or Arm processor and a GPU (Graphics...

ZFS

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ZFS- Zettabyte File System devised by Sun Microsystems in 2001 and part of its Solaris OS. It later became open-source software. ZFS was built for scale and supports up to...

EiB

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Exbibyte – 1,000 pebibytes. See Decimal and Binary Prefix entry.

YiB

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Yobibyte - 1,024 zebibytes. See Decimal and Binary Prefix entry.