iXsystems, nke na-azụlite ọrụ FreeNAS, banyere nsogbu siri ike na ndakọrịta ZFS na ụfọdụ draịva ọhụrụ WD Red nke Western Digital wepụtara site na iji teknụzụ SMR (Shingled Magnetic Recording). N'ọnọdụ kachasị njọ, iji ZFS na draịva nwere nsogbu nwere ike ibute ọnwụ data.
Nsogbu na-ebilite na draịva WD Red nwere ikike sitere na 2 ruo 6 TB, nke emepụtara kemgbe 2018, nke na-eji teknụzụ maka ndekọ. (Ndekọ ihe ndọta shingled nke ejiri ngwaọrụ) na Efax akara (maka diski CMR a na-eji njirimara EFRX). Western Digital na blọọgụ ya na WD Red SMR draịva emebere maka ojiji na NAS maka ụlọ na obere azụmaahịa, nke na-etinye ihe karịrị draịva 8 ma nwee ibu 180 TB kwa afọ, nke a na-ahụkarị maka nkwado ndabere na mpaghara faịlụ. Ọgbọ gara aga nke WD Red draịva na ụdị WD Red nwere ikike nke 8 TB ma ọ bụ karịa, yana draịva sitere na ahịrị WD Red Pro, WD Gold na WD Ultrastar, dabere na teknụzụ CMR (Conventional Magnetic Recording) na ojiji ha anaghị akpata nsogbu na ZFS.
Ihe dị mkpa nke teknụzụ SMR bụ iji isi magnetik na diski, obosara ya dị ukwuu karịa obosara nke egwu ahụ, nke na-eduga na ndekọ na nkwụsịtụ akụkụ nke egwu dị n'akụkụ, ya bụ. ihe ngbanwe ọ bụla na-arụpụta mkpa ọ dị idegharị otu egwu niile. Iji kwalite ọrụ na draịva dị otú ahụ, a na-eji ya - ebe nchekwa na-ekewa n'ime zones na-eme ka ìgwè nke blocks ma ọ bụ ngalaba, n'ime nke naanị usoro mgbakwunye nke data kwere na-emelite dum otu blocks. N'ozuzu, draịva SMR na-arụ ọrụ nke ọma karị, na-akwụ ụgwọ karịa, ma na-egosi uru arụmọrụ maka ederede usoro, mana lag mgbe ị na-arụ ọrụ na-edeghị ihe, gụnyere arụmọrụ dị ka iwughachi usoro nchekwa.
DM-SMR na-egosi na onye na-ahụ maka diski na-achịkwa zoning na ọrụ nkesa data na maka sistemụ, diski dị otú ahụ dị ka diski ike kpochapụwo nke na-achọghị mgbanwe dị iche iche. DM-SMR na-eji adreesị ngọngọ ezi uche na-apụtaghị ìhè (LBA, Logical Block Addressing), na-echetara okwu ezi uche dị na draịva SSD. Ọrụ ide ihe ọ bụla na-enweghị usoro chọrọ ọrụ nnakọta mkpofu n'azụ, na-ebute ngbanwe arụmọrụ na-enweghị atụ. Usoro ahụ nwere ike ịnwa itinye njikarịcha na diski ndị dị otú ahụ, na-ekwenye na a ga-ede data ahụ na mpaghara a kapịrị ọnụ, ma n'ezie ozi nke onye njikwa nyere na-ekpebi naanị usoro ezi uche na n'eziokwu, mgbe ị na-ekesa data, onye nchịkwa ga-etinye ya n'ọrụ. algọridim nke onwe nke na-eburu n'uche data ekenyela mbụ. Ya mere, tupu iji diski DM-SMR na ọdọ mmiri ZFS, a na-atụ aro ka ị rụọ ọrụ iji mebie ha ma tọgharịa ha na ọnọdụ mbụ ha.
Western Digital etinyela aka n'ịtụle ọnọdụ nsogbu na-ebilite, nke, yana iXsystems, na-agbalị ịchọta ngwọta ma kwadebe mmelite firmware. Tupu ibipụta nkwubi okwu banyere idozi nsogbu ahụ, a na-eme atụmatụ ịnwale draịva nwere firmware ọhụrụ na ebe nchekwa dị elu yana FreeNAS 11.3 na TrueNAS CORE 12.0. Ekwuru na n'ihi nkọwa dị iche iche nke SMR site n'aka ndị nrụpụta dị iche iche, ụfọdụ ụdị draịva SMR enweghị nsogbu na ZFS, mana nnwale nke iXsystems mere na-elekwasị anya naanị na ịlele WD Red draịva dabere na teknụzụ DM-SMR, yana maka SMR. draịva chọrọ nyocha ọzọ.
Ugbu a, egosipụtara na nsogbu dị na ZFS na ugboro ugboro na ule maka opekata mpe WD Red 4TB WD40EFX nwere firmware 82.00A82 na mgbanwe gaa na steeti ọdịda n'okpuru ibu ide ihe dị elu, dịka ọmụmaatụ, mgbe ị na-arụghachi nchekwa nchekwa mgbe agbakwunyere draịva ọhụrụ na nhazi (resilvering). Ekwenyere na nsogbu ahụ na-eme na ụdị WD Red ndị ọzọ nwere otu ngwa ngwa. Mgbe nsogbu mere, diski ahụ na-amalite ịweghachi koodu njehie IDNF (Sector ID Not Found) wee bụrụ nke a na-apụghị iji mee ihe, nke a na-emeso ya na ZFS dị ka ọdịda diski ma nwee ike iduga na-efunahụ data echekwara na diski ahụ. Ọ bụrụ na ọtụtụ diski ada ada, data dị na vdev ma ọ bụ ọdọ mmiri nwere ike ịla n'iyi. Achọpụtara na ọdịda ndị a kpọtụrụ aha na-adịkarị obere - n'ime ihe dị ka otu puku sistemụ FreeNAS Obere ere nke nwere diski nwere nsogbu, nsogbu ahụ pụtara na ọnọdụ ọrụ naanị otu ugboro.
isi: opennet.ru