Qhov zoo ntawm RAID yog dab tsi?
Qhov zoo ntawm RAID yog dab tsi?

Video: Qhov zoo ntawm RAID yog dab tsi?

Video: Qhov zoo ntawm RAID yog dab tsi?
Video: Paj Huab Vaj - Qhov Ntawm No Yog Dab Tsi (Official Music Video) NEW SONG 2024, Tej zaum
Anonim

Nws txhim kho qhov kev ua tau zoo los ntawm kev tso cov ntaub ntawv ntawm ntau lub disks. Lub tswv yim / tso zis (I / O) kev ua haujlwm tuaj yeem sib tshooj hauv kev sib npaug thiab nws txo qhov kev pheej hmoo ntawm kev poob tag nrho cov ntaub ntawv yog tias ib lub tsav tsis ua haujlwm. RAID cia siv ntau lub disks txhawm rau muab qhov ua txhaum cai thiab nws ua rau kom muaj peev xwm khaws cia ntawm qhov system.

Ntawm no, qhov txiaj ntsig ntawm RAID yog dab tsi?

RAID (Redundant Array of Inexpensive Disks) yog ib lub kaw lus tsim los ntawm ob lossis ntau lub disks yog lub cev sib txuas ua ke los tsim ib qho laj thawj, muaj peev xwm loj uas muaj ntau yam khoom siv. qhov zoo tshaj li cov khoom siv hard disk cia: kev ua tau zoo dua. txhim kho resilience. tus nqi qis dua.

Ib yam li ntawd, qhov zoo ntawm RAID 5 yog dab tsi? Cov Cov txiaj ntsig ntawm RAID 5 Feem ntau yog los ntawm nws kev sib xyaw siv disk striping thiab parity. Striping yog cov txheej txheem ntawm kev khaws cov ntu sib law liag ntawm cov ntaub ntawv sib txawv ntawm cov khoom siv sib txawv, thiab tso cai rau kev ua haujlwm zoo dua thiab ua haujlwm tau zoo. Disk striping ib leeg tsis ua rau array txhaum, txawm li cas los xij.

Ib yam li ntawd, qhov zoo thiab qhov tsis zoo ntawm RAID 1 yog dab tsi?

RAID 1 – Mirroring

Qhov zoo thiab qhov tsis zoo ntawm RAID 1
Qhov zoo Qhov tsis zoo
Nws yog ib qho yooj yim thiab yooj yim rau kev siv tshuab Siv tau cov ntaub ntawv cia muaj peev xwm tsuas yog ib nrab ntawm tag nrho cov muaj peev xwm tsav vim cov ntaub ntawv rov ua dua.

Qhov zoo ntawm RAID 0 yog dab tsi?

Lub ntsiab kom zoo dua ntawm RAID 0 thiab disk striping yog txhim kho kev ua tau zoo . Piv txwv li, striping cov ntaub ntawv hla peb lub hard disks yuav muab peb npaug ntawm bandwidth ntawm ib lub drive. Yog hais tias txhua lub tsav khiav ntawm 200 input / output ua haujlwm ib ob, disk striping yuav ua rau muaj txog 600 IOPS rau cov ntaub ntawv nyeem thiab sau.

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