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  2. File system fragmentation - Wikipedia

    en.wikipedia.org/wiki/File_system_fragmentation

    Thus, fragmentation is an important problem in file system research and design. The containment of fragmentation not only depends on the on-disk format of the file system, but also heavily on its implementation. [9] File system fragmentation has less performance impact upon solid-state drives, as there is no mechanical seek time involved. [10]

  3. Thin provisioning - Wikipedia

    en.wikipedia.org/wiki/Thin_provisioning

    With thin provisioning, storage capacity utilization efficiency can be automatically driven up towards 100% with very little administrative overhead. Organizations can purchase less storage capacity up front, defer storage capacity upgrades in line with actual business usage, and save the operating costs (electricity and floorspace) associated ...

  4. Hard disk drive failure - Wikipedia

    en.wikipedia.org/wiki/Hard_disk_drive_failure

    A hard disk drive failure occurs when a hard disk drive malfunctions and the stored information cannot be accessed with a properly configured computer. A hard disk failure may occur in the course of normal operation, or due to an external factor such as exposure to fire or water or high magnetic fields , or suffering a sharp impact or ...

  5. Defragmentation - Wikipedia

    en.wikipedia.org/wiki/Defragmentation

    An otherwise blank disk has five files, A through E, each using 10 blocks of space (for this section, a block is an allocation unit of the filesystem; the block size is set when the disk is formatted and can be any size supported by the filesystem). On a blank disk, all of these files would be allocated one after the other (see example 1 in the ...

  6. High availability - Wikipedia

    en.wikipedia.org/wiki/High_availability

    Availability measurement is subject to some degree of interpretation. A system that has been up for 365 days in a non-leap year might have been eclipsed by a network failure that lasted for 9 hours during a peak usage period; the user community will see the system as unavailable, whereas the system administrator will claim 100% uptime.

  7. Disk partitioning - Wikipedia

    en.wikipedia.org/wiki/Disk_partitioning

    The term's usage is now ubiquitous. [citation needed] Other terms used include logical disk, [4] minidisk, [5] portions, [6] pseudo-disk, [6] section, [6] slice [7] and virtual drive. [8] One of the earliest such segmentation of a disk drive was IBM's 1966 [9] usage in its CP-67 operating system of minidisk as a separate segment of a hard disk ...

  8. System partition and boot partition - Wikipedia

    en.wikipedia.org/wiki/System_partition_and_boot...

    The system partition is the disk partition that contains the operating system folder, known as the system root. By default, in Linux, operating system files are mounted at / (the root directory). In Linux, a single partition can be both a boot and a system partition if both /boot/ and the root directory are in the same partition.

  9. Hot spare - Wikipedia

    en.wikipedia.org/wiki/Hot_spare

    Typically, a hot spare is available to replace a number of different disks and systems employing a hot spare normally require a redundant group to allow time for the data to be generated onto the spare disk. During this time the system is exposed to data loss due to a subsequent failure, and therefore the automatic switching to a spare disk ...

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