Li-hard drive tsa SMR (tsa lithaele) ntle le ho bonts'a boteng ba SMR li kene liteisheneng tsa thekiso

Kaofela bahlahisi ba bararo ba qalile ho rekisa tse nyane, ho qala ho 2TB HDD Li-disk tsa SMR (tse entsoeng ka lithaele)ntle le ho e hlakisa ho li-specs: WD, Seagate, Toshiba

Inthaneteng ea puo ea Senyesemane le mecha ea litaba, liketso tse joalo lia nyatsuoa 'me, ke nahana, ho nepahetse. Naheng ea Russia, mohloli oa THG o ile oa hlokomeloa ka sengoloa Western Digital e sebelisa DM-SMR, ho etsa li-drive tsa WD Red tse loketseng NAS le RAID. Sehlooho sena, ka maikutlo a ka, ke leshano le se nang lihlong, ho tloha sehloohong ho fihlela qetellong: "Ka lebaka la theknoloji ea ho rekota ea DM-SMR, Western Digital e entse li-hard drive tsa eona tsa WD Red tse loketseng NAS le RAID." Hoa thahasellisa hore phetolelong ea Senyesemane ea sehlooho sena Western Digital Fesses Up: Li-HDD tse ling tse Khubelu li Sebelisa Slow SMR Tech Ntle le Phatlalatso
ha ho na leseli la ho sotha lintlha ho joalo

Hape temaneng ea thg.ru e bua ka Alan Brown,

Alan Brown, molaoli oa marang-rang ho UCL Mullard Space Science Laboratory, o fumane tsela ea ho tsoa boemong bona. O ile a fumana hore lithōle tsa RAID, tse etsoang ha koloi e ncha e eketsoa ho sehlopha se teng sa RAID ebe se ngoloa hape ho leka-lekanya phihlello, se entse hore tsamaiso e nke li-HDD tse ncha tsa WD Red ho tsoa taolong.

Ha ho hlaka hore na hantle-ntle e bolela eng "sistimi e tlosa li-HDD tse khubelu tsa WD tlas'a taolo ea eona." - empa ho latela moelelo oa tlhahiso, ena ke tharollo.

Ka nako e ts'oanang Ha e le hantle Alan o ile a ngola ka taba ena - empa ho fapana le hoo

WD40EFAX koloi eo ke e tlatsitseng ka li-zero e ne e lekana le 40MB/s, empa e qalile ho 120MB/s.

Tabeng ea ZFS, solver ha se sekhechana sa ho qetela-ho-qetellong sa "block-level-level scan", empa se ts'oara ka har'a disk eohle ha faele e 'ngoe le e' ngoe e khutlisetsoa tekano. Sena se bonahala se baka bothata bo bong ho WD40EFAX, moo kopo ea ho hlahloba lekala le e-so ngoloe ho etsa hore koloi e kene ka hare ho phoso ea "Sector ID Ha e Fumane (IDNF)" le ho lahlela phoso ea I / O ea hardware ho tloha. sehokelo ho sistimi e amohelang.

Balaoli ba RAID (hardware kapa software, RAID5/6 kapa ZFS) ba tla etsa qeto ka mokhoa o utloahalang hore koloi e mpe ka mor'a tse 'maloa tsa bona ebe ba e ntša sehlopheng haeba e so ka e qeta nako.

Ka sebele sena se lumellana le seo ke se hlokometseng - moamoheli o tsamaea hoo e ka bang 100MB / s ka metsotso e ka bang 40, ka mor'a moo "Die" e khanna 'me e shoa khafetsa haeba ke leka ho qala moamoheli, leha ho le joalo, haeba ke e tlohela - kamora hora kapa ho feta. , ba sebetsa metsotso e meng e 40 pele ba oela.

Ho thata ho nahana hore na hantle-ntle ke eng e entseng hore thg.ru e etse sena. Motho a ka hakanya feela hore na sena se ne se bakoa ke khatello ea babapatsi. Leha ho le joalo, boemo ha li-drive tse tsebahalang tse reretsoeng NAS li nkeloa sebaka ka khutso ke tse sa tšoaneleheng haholo ka theko e tšoanang ntle le ho fetola litlhaloso li lokeloa ke tlhokomelo.

Sebokeng Ho ile ha buuoa ka bothata webosaeteng ea WD. Moelelo oa ts'oana

Ke sa tsoa reka 3 WD REDs ho nkela li-drive tsa botsofali sebakeng sa ZFS

TSOHLE TSE THARO li hloleha nakong ea ho ts'oaroa ka liphoso tsa IDNF (ID ea lekala ha e fumanehe):

Ho ea kamoo ke utloisisang, bothata bo teng
WD RED - WD Red EFAX ke li-drive tsa SMR 'me li na le 256 MB ea cache. Li-drive tsa EFRX - ha li sebelise SMR (tsena ke li-drive tsa CMR tse tloaelehileng) 'me li na le cache ea 64 MB.
Toshiba e na le mehlala e 'maloa lintlha tse ling mona
Seagate e na le lihlopha tse 'maloa - lintlha tse ling mona

Source: www.habr.com