ASM metadata yog dab tsi?
ASM metadata yog dab tsi?

Video: ASM metadata yog dab tsi?

Video: ASM metadata yog dab tsi?
Video: ASM Storage Concept - ASM DiskGroup - ASM Disks - Allocation Units (AU) - ASM Files - Extend Mgmt 2024, Lub peb hlis ntuj
Anonim

ASM metadata . Ib qho piv txwv ASM tswj cov metadata xav tau los ua ASM cov ntaub ntawv muaj rau Oracle databases thiab ASM cov neeg siv khoom. ASM metadata yog khaws cia rau hauv pawg disk - hauv metadata blocks . Ib txhia ASM metadata yog nyob rau ntawm txoj haujlwm ruaj khov hauv txhua qhov ASM disk, thiab xa mus raws li lub cev nyob rau hauv metadata.

Ua kom pom qhov no, ASM yog dab tsi hauv database?

Automatic Storage Management ( ASM ) yog kev sib xyaw ua ke, kev ua haujlwm siab database file system thiab disk manager. ASM tshem tawm qhov kev xav tau rau koj los tswj ncaj qha muaj peev xwm ntau txhiab tus Oracle database cov ntaub ntawv. ASM pab pawg disks hauv koj qhov system cia rau hauv ib lossis ntau pawg disk.

Dab tsi yog striping thiab mirroring hauv ASM? ASM striping thiab mirroring . ASM muab striping los ntawm kev faib cov ntaub ntawv rau hauv qhov sib npaug. striping nthuav tawm txhua cov ntaub ntawv sib npaug thoob plaws txhua qhov disks hauv pawg disk. ASM kuj muab tsis siv neeg tsom iav ntawm ASM cov ntaub ntawv thiab tso cai rau cov tsom iav qib yuav tsum tau teev los ntawm pawg.

Ib yam li ntawd, nws tau nug, siv ASM yog dab tsi?

ASM yog Oracle tau pom zoo khaws cia kev tswj kev daws teeb meem uas muab lwm txoj hauv kev rau cov thawj coj ntim ntim, cov ntaub ntawv kaw lus, thiab cov khoom siv raw. ASM siv pawg disk los khaws cov ntaub ntawv; pawg ASM disk yog ib qho kev sau ntawm cov disks uas ASM tswj hwm raws li ib chav.

Dab tsi yog ASM piv txwv hauv Oracle?

Ib Oracle ASM piv txwv yog tsim los ntawm tib technology li ib Oracle Database piv txwv . Oracle ASM thiab database piv txwv xav tau kev sib koom nkag mus rau cov disks hauv pawg disk. Oracle ASM piv txwv tswj cov metadata ntawm pawg disk thiab muab cov ntaub ntawv layout cov ntaub ntawv rau lub database piv txwv.

Pom zoo: