Logical block addressing ua dab tsi?
Logical block addressing ua dab tsi?

Video: Logical block addressing ua dab tsi?

Video: Logical block addressing ua dab tsi?
Video: 14.113 Жесткие диски, секторы, запись битов зоны, секторы и блоки, CHS, LBA, резервирование 2024, Kaum ib hlis
Anonim

Logical block chaw nyob (LBA) yog ib lub tswv yim siv los qhia qhov chaw ntawm thaiv ntawm cov ntaub ntawv khaws cia rau hauv lub computer cia khoom, feem ntau yog lwm qhov chaw khaws cia xws li hard disks. LBA tau hloov CHS lub tswv yim txhawm rau kov yeej qee yam ntawm nws cov kev txwv.

Xav txog qhov no, qhov chaw nyob thaiv yog dab tsi?

Logical thaiv qhov chaw nyob yog ib tug txheej txheem uas tso cai rau lub computer chaw nyob hard disk loj dua 528 megabytes. Ib qho laj thawj thaiv chaw nyob yog 28-ntsis tus nqi uas qhia txog ib lub tog raj kheej-lub taub hau-sector chaw nyob ntawm disk.

Ib sab saum toj, LBAS yog dab tsi? LBAS . Left Behind after Suicide (pab pawg)

Raws li kev sib raug zoo, dab tsi yog qhov kev xav tau?

Cov sector yog qhov chaw nyob tsawg tshaj plaws, thiab ib txwm kho ntawm 512 bytes. LBA yog logical byte chaw nyob qhov twg tsav nyeem los ntawm thiab sau rau a sector chaw nyob los ntawm nws qhov offset, piv txwv li, nyeem 123837th sector ntawm disk lossis sau qhov no mus rau 123734th sector ntawm lub disk (pib ntawm xoom).

LBA suav li cas?

Cov LBA yuav sib npaug tus naj npawb ntawm 512-byte sectors ntawm tus tsav. Los yog muab ntau C * H * S nrhiav tus naj npawb ntawm cov sectors. Yog tias koj xav tau los tsim lub virtual disk lossis ntim thiab tsuas yog xav tau tus lej ntawm cov haujlwm nkag, ces daim ntawv yuav tsum zoo.

Pom zoo: