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[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 drive.
For most disks, each sector stores a fixed amount of user-accessible data, traditionally 512 bytes for hard disk drives (HDDs), and 2048 bytes for CD-ROMs, DVD-ROMs and BD-ROMs. [1] Newer HDDs and SSDs use 4096 byte (4 KiB) sectors, which are known as the Advanced Format (AF). The sector is the minimum storage unit of a hard drive. [2]
Cylinder, head, and sector of a hard drive. Cylinder-head-sector (CHS) is an early method for giving addresses to each physical block of data on a hard disk drive.. It is a 3D-coordinate system made out of a vertical coordinate head, a horizontal (or radial) coordinate cylinder, and an angular coordinate sector.
s-part: slice ID identifying a specific partition on that disk. [1] In the Unix family of operating systems, these IDs are often combined into a single "name". For example, /dev/dsk/c1t2d3s4 would refer to controller 1, target 2, disk 3, slice 4.
Non-RAID drive architectures also exist, and are referred to by acronyms with tongue-in-cheek similarity to RAID: JBOD (just a bunch of disks): described multiple hard disk drives operated as individual independent hard disk drives. SPAN or BIG: A method of combining the free space on multiple hard disk drives from "JBoD" to create a spanned ...
At the Empire Slice House, a single slice costs $5, and whole specialty pies start at $26. Some reviewers say this is the best pizza in the city, especially for fans of New York-style pie, which ...
Buy a block of cheese or meat and slice it yourself. The same goes for precut fruit and vegetables. They may save a few minutes in the kitchen, but you can save money if you slice and dice the ...
Diagram of a RAID 1 setup. RAID 1 consists of an exact copy (or mirror) of a set of data on two or more disks; a classic RAID 1 mirrored pair contains two disks.This configuration offers no parity, striping, or spanning of disk space across multiple disks, since the data is mirrored on all disks belonging to the array, and the array can only be as big as the smallest member disk.