SMR (tiled) hard drives tsis qhia tias muaj SMR mus rau hauv kev muag khoom

Tag nrho peb lub tuam txhab pib muag me me, pib los ntawm 2TB HDD SMR disks (tiled)tsis qhia nws hauv specs: WD, Seagate, Toshiba

Hauv Is Taws Nem Lus Askiv thiab xov xwm, cov yeeb yam no raug thuam thiab, kuv xav tias, yog li ntawd. Hauv tebchaws Russia, THG cov peev txheej tau sau tseg nrog ib tsab xov xwm Western Digital siv DM-SMR, ua WD Red drives haum rau NAS thiab RAID. Kab lus no, hauv kuv qhov kev txiav txim, yog kev dag tsis txaj muag, los ntawm lub npe mus rau qhov xaus: "Nrog DM-SMR kaw tshuab, Western Digital tau ua nws WD Red hard drives haum rau NAS thiab RAID." Nws yog nthuav tias nyob rau hauv lus Askiv version ntawm tsab xov xwm Western Digital Fesses Up: Qee cov HDDs liab siv SMR Tech qeeb yam tsis muaj kev tshaj tawm
tsis muaj ib tug hint ntawm xws li ib tug distortion ntawm qhov tseeb

Tsis tas li ntawd nyob rau hauv cov ntawv nyeem thg.ru hais txog Alan Brown,

Alan Brown, tus thawj coj hauv network ntawm UCL Mullard Space Science Laboratory, nrhiav txoj hauv kev tawm ntawm qhov xwm txheej no. Nws pom tias RAID dumps, uas tau ua thaum ntxiv cov tsav tshiab rau ib qho RAID array uas twb muaj lawm thiab tom qab ntawd sau nws kom sib npaug, ua rau lub kaw lus coj WD Red HDDs tshiab tawm ntawm kev tswj hwm.

Nws yog qhov tsis meej meej tias nws txhais li cas "lub kaw lus tshem tawm WD Red HDDs tshiab los ntawm nws txoj kev tswj hwm." - tab sis raws li lub ntsiab lus ntawm qhov kev thov, qhov no yog qhov kev daws teeb meem.

Nyob rau tib lub sijhawm Alan tau sau rau ntawm lub ncauj lus - tab sis heev qhov opposite

Lub WD40EFAX tsav uas kuv tau sau nrog xoom nruab nrab yog 40MB / s, tab sis pib ntawm 120MB / s.

Nyob rau hauv rooj plaub ntawm ZFS, tus daws teeb meem tsis yog qhov kawg-rau-kawg thaiv-theem scan, tab sis hops hla tag nrho cov disk vim txhua cov ntaub ntawv rov qab los rau qhov sib xws. Qhov no tshwm sim ua rau lwm qhov teeb meem ntawm WD40EFAX, qhov kev thov kom kuaj xyuas cov haujlwm uas tseem tsis tau sau los ua rau lub tsav sab hauv nkag mus rau qhov yuam kev "Sector ID Tsis Pom (IDNF)" thiab cuam tshuam kho vajtse I / O yuam kev los ntawm interface rau host system.

RAID controllers (hardware lossis software, RAID5/6 lossis ZFS) yuav txiav txim siab tias tus tsav tsis zoo tom qab ob peb ntawm lawv thiab eject nws ntawm cov array yog tias nws tsis tau tom qab lub sijhawm.

Qhov no yeej phim qhov kuv pom - tus txais yuav mus txog li 100MB / s li ntawm 40 feeb, tom qab ntawd cov tsav "tuag" thiab tuag ntau zaus yog tias kuv sim rov pib lub receiver, txawm li cas los xij, yog tias kuv tso nws - tom qab ib teev los yog li ntawd , lawv ua hauj lwm rau lwm 40 feeb ua ntej ntog.

Nws yog ib qho nyuaj rau xav txog dab tsi tiag tiag ua thg.ru ua qhov no. Ib tug tsuas tuaj yeem kwv yees seb qhov no yog vim kev ntxhov siab los ntawm cov neeg tshaj tawm. Txawm li cas los xij, qhov xwm txheej thaum cov tsav nrov tau npaj tshwj xeeb rau NAS tau hloov ntsiag to los ntawm qhov tsis tsim nyog tsawg ntawm tib tus nqi thiab tsis hloov qhov tshwj xeeb tsim nyog mloog.

Thaum lub rooj sib tham Muaj lus hais txog qhov teeb meem ntawm WD lub vev xaib. Lub ntsiab yog tib yam

Kuv nyuam qhuav yuav 3 WD REDs los hloov cov tsav laus hauv ZFS array

TAG NRHO peb ua tsis tiav thaum lub sij hawm resilvering nrog IDNF (sector ID tsis pom) yuam kev:

Raws li kuv nkag siab, qhov teeb meem yog nrog
WD RED - WD Red EFAX yog SMR drives thiab muaj 256 MB ntawm cache. EFRX drives - tsis txhob siv SMR (cov no yog ib txwm CMR drives) thiab muaj 64 MB cache
Toshiba muaj ntau yam qauv ntxiv ntawm no
Seagate muaj ob peb series - ntxiv ntawm no

Tau qhov twg los: www.hab.com