GB201213763D0 - Reducing workload on a storage system - Google Patents

Reducing workload on a storage system

Info

Publication number
GB201213763D0
GB201213763D0 GBGB1213763.4A GB201213763A GB201213763D0 GB 201213763 D0 GB201213763 D0 GB 201213763D0 GB 201213763 A GB201213763 A GB 201213763A GB 201213763 D0 GB201213763 D0 GB 201213763D0
Authority
GB
United Kingdom
Prior art keywords
block
flag
compression
storage system
compressed
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Withdrawn
Application number
GBGB1213763.4A
Other versions
GB2504534A (en
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
International Business Machines Corp
Original Assignee
International Business Machines Corp
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by International Business Machines Corp filed Critical International Business Machines Corp
Priority to GB1213763.4A priority Critical patent/GB2504534A/en
Publication of GB201213763D0 publication Critical patent/GB201213763D0/en
Publication of GB2504534A publication Critical patent/GB2504534A/en
Withdrawn legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B20/00—Signal processing not specific to the method of recording or reproducing; Circuits therefor
    • G11B20/00007—Time or data compression or expansion
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F16/00—Information retrieval; Database structures therefor; File system structures therefor
    • G06F16/10—File systems; File servers
    • G06F16/17—Details of further file system functions
    • G06F16/174—Redundancy elimination performed by the file system
    • G06F16/1744—Redundancy elimination performed by the file system using compression, e.g. sparse files

Abstract

A storage controller 210 receives data blocks 241, 242 to be stored in a storage system 211-213, and determines whether the block of data needs to be compressed 230 before being written to disk by means of an indication of the compression status provided with the data block, which may be a flag 251, 252. If the flag indicates that the block is already compressed, such as a ZIP file or an encoded media file, the system may pass it through for storage without causing the compression engine 220 to attempt compression of the block; otherwise the compression engine creates a compressed block 261. This prevents redundant work from being performed by the compression engine, and therefore reduces the workload of the system. The flag may also permit bypassing a decompression engine on read. The flag may be set by an application at the host 201 which opens the file the data block comprises before it is forwarded to the storage system.
GB1213763.4A 2012-08-02 2012-08-02 Determining whether a data block requires compression before being stored Withdrawn GB2504534A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB1213763.4A GB2504534A (en) 2012-08-02 2012-08-02 Determining whether a data block requires compression before being stored

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB1213763.4A GB2504534A (en) 2012-08-02 2012-08-02 Determining whether a data block requires compression before being stored

Publications (2)

Publication Number Publication Date
GB201213763D0 true GB201213763D0 (en) 2012-09-12
GB2504534A GB2504534A (en) 2014-02-05

Family

ID=46881559

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1213763.4A Withdrawn GB2504534A (en) 2012-08-02 2012-08-02 Determining whether a data block requires compression before being stored

Country Status (1)

Country Link
GB (1) GB2504534A (en)

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20020078242A1 (en) * 2000-12-15 2002-06-20 Nanjundiah Viswanath Method of selectively compressing data packets
US7606954B2 (en) * 2005-09-29 2009-10-20 Intel Corporation Data storage using compression
KR20120054699A (en) * 2010-11-22 2012-05-31 삼성전자주식회사 Memory controller, data storage system including the same and method thereof

Also Published As

Publication number Publication date
GB2504534A (en) 2014-02-05

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Legal Events

Date Code Title Description
WAP Application withdrawn, taken to be withdrawn or refused ** after publication under section 16(1)