LZJB
Encyclopedia
LZJB is a lossless data compression
algorithm
invented by Jeff Bonwick
to compress crash dumps and data in ZFS
. It includes a number of improvements to the LZRW1
algorithm, a member of the Lempel-Ziv
family of compression algorithms.
Lossless data compression
Lossless data compression is a class of data compression algorithms that allows the exact original data to be reconstructed from the compressed data. The term lossless is in contrast to lossy data compression, which only allows an approximation of the original data to be reconstructed, in exchange...
algorithm
Algorithm
In mathematics and computer science, an algorithm is an effective method expressed as a finite list of well-defined instructions for calculating a function. Algorithms are used for calculation, data processing, and automated reasoning...
invented by Jeff Bonwick
Jeff Bonwick
Jeff Bonwick was a Sun Fellow at Sun Microsystems, later a Vice President at Sun and then a Senior Software Architect at Oracle until his departure from the company on 30 September 2010.He led the team which developed ZFS for Solaris....
to compress crash dumps and data in ZFS
ZFS
In computing, ZFS is a combined file system and logical volume manager designed by Sun Microsystems. The features of ZFS include data integrity verification against data corruption modes , support for high storage capacities, integration of the concepts of filesystem and volume management,...
. It includes a number of improvements to the LZRW1
LZRW
Lempel–Ziv Ross Williams, refers to variants of the LZ77 lossless data compression algorithms with an emphasis on improving compression speed through the use of hash tables and other techniques...
algorithm, a member of the Lempel-Ziv
LZ77 and LZ78
LZ77 and LZ78 are the names for the two lossless data compression algorithms published in papers by Abraham Lempel and Jacob Ziv in 1977 and 1978. They are also known as LZ1 and LZ2 respectively. These two algorithms form the basis for most of the LZ variations including LZW, LZSS, LZMA and...
family of compression algorithms.