{"id":80184,"date":"2020-05-04T07:42:02","date_gmt":"2020-05-04T05:42:02","guid":{"rendered":"https:\/\/prohoster.info\/blog\/novosti-interneta\/vyyavlena-nesovmestimost-smr-diskov-wd-s-zfs-kotoraya-mozhet-privesti-k-potere-dannyh"},"modified":"2020-05-04T07:42:02","modified_gmt":"2020-05-04T05:42:02","slug":"vyyavlena-nesovmestimost-smr-diskov-wd-s-zfs-kotoraya-mozhet-privesti-k-potere-dannyh","status":"publish","type":"post","link":"https:\/\/prohoster.info\/sq\/blog\/novosti-interneta\/vyyavlena-nesovmestimost-smr-diskov-wd-s-zfs-kotoraya-mozhet-privesti-k-potere-dannyh","title":{"rendered":"U identifikua konflikti i disqeve SMR WD me ZFS, i cili mund t\u00eb \u00e7oj\u00eb n\u00eb humbje t\u00eb t\u00eb dh\u00ebnave","gt_translate_keys":[{"key":"rendered","format":"text"}]},"content":{"rendered":"

Kompania iXsystems, e cila ka zhvilluar projektin FreeNAS, paralajm\u00ebroi<\/a><\/noindex> ka paralajm\u00ebruar p\u00ebr probleme t\u00eb r\u00ebnd\u00ebsishme n\u00eb p\u00ebrputhshm\u00ebrin\u00eb e ZFS me disa disqe t\u00eb rinj WD Red, t\u00eb prodhuar nga Western Digital, q\u00eb p\u00ebrdorin teknologjin\u00eb SMR (Shingled Magnetic Recording, regjistrim me magnetik\u00eb rreshtuar). N\u00eb skenar\u00ebt m\u00eb t\u00eb k\u00ebqij, p\u00ebrdorimi i ZFS n\u00eb disqe problematik\u00eb mund t\u00eb \u00e7oj\u00eb n\u00eb humbje t\u00eb t\u00eb dh\u00ebnave. <\/p>\n

Problemet shfaqen me disqet WD Red me kapacitet nga 2 deri n\u00eb 6 TB, t\u00eb prodhuar q\u00eb nga viti 2018, t\u00eb cilat p\u00ebrdorin teknologjin\u00eb e regjistrimit DM-SMR<\/a><\/noindex> (Device-Managed Shingled Magnetic Recording) dhe kan\u00eb etiket\u00ebn<\/a><\/noindex> EFAX (p\u00ebr disqet CMR p\u00ebrdoret identifikuesi EFRX). Western Digital festoi<\/a><\/noindex> ka deklaruar n\u00eb blogun e saj se disqet SMR WD Red jan\u00eb t\u00eb destinuara p\u00ebr p\u00ebrdorim n\u00eb NAS p\u00ebr sht\u00ebpi dhe biznese t\u00eb vogla, ku instalohet jo m\u00eb shum\u00eb se 8 disqe dhe ngarkesa \u00ebsht\u00eb deri n\u00eb 180 TB n\u00eb vit, e cila \u00ebsht\u00eb tipike p\u00ebr kopjimin e t\u00eb dh\u00ebnave dhe ndarjen e skedar\u00ebve. Brezi i m\u00ebparsh\u00ebm i disqeve WD Red dhe modelet WD Red me kapacitet prej 8 TB, si dhe disqet e linjave WD Red Pro, WD Gold, dhe WD Ultrastar, vazhdojn\u00eb t\u00eb prodhohen mbi baz\u00ebn e teknologjis\u00eb CMR (Conventional Magnetic Recording) dhe p\u00ebrdorimi i tyre nuk p\u00ebrballet me probleme me ZFS.<\/p>\n

The essence of the SMR technology lies in its use in magnetic head disks, where the width of the head exceeds the width of the track, resulting in partial overlap recording of adjacent tracks. This means that any rewriting necessitates rewriting the entire group of tracks. To optimize the performance of such storage devices, zoning<\/a><\/noindex> \u2014 the storage space is divided into zones, forming groups of blocks or sectors where only sequential data additions are allowed, requiring a complete update of the entire group of blocks. In general, SMR disks are more efficient in terms of energy consumption, more cost-effective, and show performance gains in sequential data writing, but lag in performing random write operations, including tasks like rebuilding storage arrays. <\/p>\n

DM-SMR n\u00ebnkupton q\u00eb operacionet e zonifikimit dhe shp\u00ebrndarjes s\u00eb t\u00eb dh\u00ebnave menaxhohen nga kontrolluesi i diskut, dhe p\u00ebr sistemin ky disk duket si nj\u00eb disk klasik mekanik, pa nevoj\u00eb p\u00ebr manipulime t\u00eb ve\u00e7anta. N\u00eb DM-SMR aplikohet adresimi logjik indirekt i blloqeve (LBA, Logical Block Addressing), i ngjash\u00ebm me adresimin logjik n\u00eb pajisjet SSD. Pas \u00e7do operacioni rast\u00ebsor t\u00eb shkruajtjes, k\u00ebrkohet realizimi i nj\u00eb operacioni n\u00eb prapavij\u00eb p\u00ebr pastrimin e mbeturinave, q\u00eb shkakton flukset e paparashikueshme me performanc\u00ebn. Sistemi mund t\u00eb p\u00ebrpiqet t\u00eb aplikoj\u00eb optimizime p\u00ebr k\u00ebto disqe, duke menduar se t\u00eb dh\u00ebnat do t\u00eb shkruhen n\u00eb sektorin e caktuar, por informacionet e l\u00ebshuara nga kontrolluesi p\u00ebrcaktojn\u00eb vet\u00ebm struktur\u00ebn logjike dhe n\u00eb t\u00eb v\u00ebrtet\u00eb, gjat\u00eb shp\u00ebrndarjes s\u00eb t\u00eb dh\u00ebnave, kontrolluesi do t\u00eb zbatoj\u00eb algoritmet e tij, duke marr\u00eb parasysh t\u00eb dh\u00ebnat e vendosura m\u00eb par\u00eb. Prandaj, para p\u00ebrdorimit t\u00eb disqeve DM-SMR n\u00eb nj\u00eb grup ZFS, rekomandohet t\u00eb kryhet nj\u00eb operacion p\u00ebr t'i kthyer ato n\u00eb gjendjen fillestare.<\/p>\n

P\u00ebr shqyrtimin e kushteve q\u00eb shkaktojn\u00eb probleme, \u00ebsht\u00eb angazhuar kompania Western Digital, e cila s\u00eb bashku me iXsystems po p\u00ebrpiqet t\u00eb gjej\u00eb nj\u00eb zgjidhje dhe t\u00eb p\u00ebrgatis\u00eb nj\u00eb p\u00ebrdit\u00ebsim t\u00eb firmware. Deri n\u00eb publikimin e konkluzioneve p\u00ebr zgjidhjen e problemeve, disk\u00ebt me firmware t\u00eb ri planifikohen t\u00eb testohet n\u00eb sisteme t\u00eb ngarkuara shum\u00eb me FreeNAS 11.3 dhe TrueNAS CORE 12.0. N\u00eb k\u00ebt\u00eb kontekst, \u00ebsht\u00eb e pohuar se p\u00ebr shkak t\u00eb interpretimit t\u00eb ndrysh\u00ebm t\u00eb SMR nga prodhues t\u00eb ndrysh\u00ebm, n\u00eb disa lloje disk\u00ebsh SMR nuk ka probleme me ZFS, por testimi i kryer nga iXsystems \u00ebsht\u00eb p\u00ebrqendruar vet\u00ebm n\u00eb verifikimin e disk\u00ebve WD Red q\u00eb bazohen n\u00eb teknologjin\u00eb DM-SMR, dhe p\u00ebr disk\u00ebt SMR prodhues t\u00eb tjer\u00eb<\/a><\/noindex> k\u00ebrkohet hulumtim shtes\u00eb.<\/p>\n

Aktualisht, problemet me ZFS jan\u00eb provuar dhe rip\u00ebrs\u00ebritur n\u00eb teste p\u00ebr t\u00eb pakt\u00ebn disk\u00ebt WD Red 4TB WD40EFAX me firmware 82.00A82 dhe manifestohen<\/a><\/noindex> kalimi n\u00eb gjendjen e d\u00ebshtimit n\u00ebn ngarkes\u00eb t\u00eb lart\u00eb t\u00eb shkrimit, p\u00ebr shembull, gjat\u00eb rind\u00ebrtimit t\u00eb sistemit pas shtimit t\u00eb nj\u00eb disku t\u00eb ri n\u00eb array (resilvering). Supozohet se problemi shfaqet edhe n\u00eb modele t\u00eb tjera WD Red me t\u00eb nj\u00ebjtin firmware. Kur ndodh problemi, disku fillon t\u00eb kthej\u00eb kodin e gabimit IDNF (Sector ID Not Found) dhe b\u00ebhet i pap\u00ebrdorsh\u00ebm, \u00e7ka trajtohet n\u00eb ZFS si nj\u00eb d\u00ebshtim disku dhe mund t\u00eb \u00e7oj\u00eb n\u00eb humbjen e t\u00eb dh\u00ebnave t\u00eb ruajtura n\u00eb disk. N\u00eb rastin e d\u00ebshtimit t\u00eb disa disk\u00ebve, t\u00eb dh\u00ebnat n\u00eb vdev ose pool mund t\u00eb humbasin. Raportohet se d\u00ebshtimet e p\u00ebrmendura ndodhin mjaft rrall\u00eb \u2014 nga rreth nj\u00eb mij\u00eb sisteme t\u00eb shitura FreeNAS Mini, t\u00eb p\u00ebrfshira me disk\u00eb problematic\u00eb, problemi ka shp\u00ebrthyer n\u00eb kushte t\u00eb pun\u00ebs vet\u00ebm nj\u00eb her\u00eb.<\/p>\n

<\/a><\/noindex><\/p>\n

Burimi: opennet.ru<\/a><\/p>","protected":false,"gt_translate_keys":[{"key":"rendered","format":"html"}]},"excerpt":{"rendered":"

\u041a\u043e\u043c\u043f\u0430\u043d\u0438\u044f iXsystems, \u0440\u0430\u0437\u0440\u0430\u0431\u0430\u0442\u044b\u0432\u0430\u044e\u0449\u0430\u044f \u043f\u0440\u043e\u0435\u043a\u0442 FreeNAS, \u043f\u0440\u0435\u0434\u0443\u043f\u0440\u0435\u0434\u0438\u043b\u0430 \u043e \u0441\u0435\u0440\u044c\u0451\u0437\u043d\u044b\u0445 \u043f\u0440\u043e\u0431\u043b\u0435\u043c\u0430\u0445 \u0441 \u0441\u043e\u0432\u043c\u0435\u0441\u0442\u0438\u043c\u043e\u0441\u0442\u044c\u044e ZFS \u0441 \u043d\u0435\u043a\u043e\u0442\u043e\u0440\u044b\u043c\u0438 \u043d\u043e\u0432\u044b\u043c\u0438 \u0436\u0451\u0441\u0442\u043a\u0438\u043c\u0438 \u0434\u0438\u0441\u043a\u0430\u043c\u0438 WD Red, \u0432\u044b\u043f\u0443\u0441\u043a\u0430\u0435\u043c\u044b\u043c\u0438 \u043a\u043e\u043c\u043f\u0430\u043d\u0438\u0435\u0439 Western Digital \u0441 \u0438\u0441\u043f\u043e\u043b\u044c\u0437\u043e\u0432\u0430\u043d\u0438\u0435\u043c \u0442\u0435\u0445\u043d\u043e\u043b\u043e\u0433\u0438\u0438 SMR (Shingled Magnetic Recording, \u0447\u0435\u0440\u0435\u043f\u0438\u0447\u043d\u0430\u044f \u043c\u0430\u0433\u043d\u0438\u0442\u043d\u0430\u044f \u0437\u0430\u043f\u0438\u0441\u044c). \u041f\u0440\u0438 \u043d\u0430\u0438\u0445\u0443\u0434\u0448\u0435\u043c \u0441\u0446\u0435\u043d\u0430\u0440\u0438\u0438 \u0438\u0441\u043f\u043e\u043b\u044c\u0437\u043e\u0432\u0430\u043d\u0438\u0435 ZFS \u043d\u0430 \u043f\u0440\u043e\u0431\u043b\u0435\u043c\u043d\u044b\u0445 \u043d\u0430\u043a\u043e\u043f\u0438\u0442\u0435\u043b\u044f\u0445 \u043c\u043e\u0436\u0435\u0442 \u043f\u0440\u0438\u0432\u0435\u0441\u0442\u0438 \u043a \u043f\u043e\u0442\u0435\u0440\u0435 \u0434\u0430\u043d\u043d\u044b\u0445. \u041f\u0440\u043e\u0431\u043b\u0435\u043c\u044b \u0432\u043e\u0437\u043d\u0438\u043a\u0430\u044e\u0442 \u0441 \u0434\u0438\u0441\u043a\u0430\u043c\u0438 WD Red \u0451\u043c\u043a\u043e\u0441\u0442\u044c\u044e \u043e\u0442 2 […]<\/p>\n","protected":false,"gt_translate_keys":[{"key":"rendered","format":"html"}]},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[702],"tags":[],"class_list":["post-80184","post","type-post","status-publish","format-standard","hentry","category-novosti-interneta"],"aioseo_notices":[],"aioseo_head":"\n\t\t\n\t\n\t\n\t\n\t\n\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\n","aioseo_head_json":{"title":"\ud83e\udd47U zbulua nj\u00eb pabarazi midis disqeve SMR WD dhe ZFS, q\u00eb mund t\u00eb \u00e7oj\u00eb n\u00eb humbje t\u00eb t\u00eb dh\u00ebnave | ProHoster","description":"Kompania iXsystems, q\u00eb zhvillon projektin FreeNAS, ka paralajm\u00ebruar p\u00ebr probleme t\u00eb r\u00ebnd\u00ebsishme t\u00eb kompaktueshm\u00ebris\u00eb ZFS me disa hard disqe t\u00eb rinj WD Red, prodhuar nga Western Digital duke p\u00ebrdorur teknologjin\u00eb SMR (Shingled Magnetic Recording, regjistrim magnetik me rreth). N\u00eb skenarin m\u00eb t\u00eb keq, p\u00ebrdorimi i ZFS n\u00eb disqet problematike mund t\u00eb \u00e7oj\u00eb n\u00eb humbje t\u00eb t\u00eb dh\u00ebnave. Problemet ndodhin me disqet WD Red me kapacitet prej 2","canonical_url":"https:\/\/prohoster.info\/sq\/blog\/novosti-interneta\/vyyavlena-nesovmestimost-smr-diskov-wd-s-zfs-kotoraya-mozhet-privesti-k-potere-dannyh","robots":"max-image-preview:large","keywords":"","webmasterTools":{"miscellaneous":""},"schema":null,"og:locale":"sq_AL","og:site_name":"ProHoster | \u041a\u0443\u043f\u0438\u0442\u044c \u043d\u0430\u0434\u0435\u0436\u043d\u044b\u0439 \u0445\u043e\u0441\u0442\u0438\u043d\u0433 \u0434\u043b\u044f \u0441\u0430\u0439\u0442\u043e\u0432 \u0441 \u0437\u0430\u0449\u0438\u0442\u043e\u0439 \u043e\u0442 DDoS, VPS VDS \u0441\u0435\u0440\u0432\u0435\u0440\u044b","og:type":"article","og:title":"\ud83e\udd47\u0412\u044b\u044f\u0432\u043b\u0435\u043d\u0430 \u043d\u0435\u0441\u043e\u0432\u043c\u0435\u0441\u0442\u0438\u043c\u043e\u0441\u0442\u044c SMR-\u0434\u0438\u0441\u043a\u043e\u0432 WD \u0441 ZFS, \u043a\u043e\u0442\u043e\u0440\u0430\u044f \u043c\u043e\u0436\u0435\u0442 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\u0438\u0441\u043f\u043e\u043b\u044c\u0437\u043e\u0432\u0430\u043d\u0438\u0435\u043c \u0442\u0435\u0445\u043d\u043e\u043b\u043e\u0433\u0438\u0438 SMR (Shingled Magnetic Recording, \u0447\u0435\u0440\u0435\u043f\u0438\u0447\u043d\u0430\u044f \u043c\u0430\u0433\u043d\u0438\u0442\u043d\u0430\u044f \u0437\u0430\u043f\u0438\u0441\u044c). \u041f\u0440\u0438 \u043d\u0430\u0438\u0445\u0443\u0434\u0448\u0435\u043c \u0441\u0446\u0435\u043d\u0430\u0440\u0438\u0438 \u0438\u0441\u043f\u043e\u043b\u044c\u0437\u043e\u0432\u0430\u043d\u0438\u0435 ZFS \u043d\u0430 \u043f\u0440\u043e\u0431\u043b\u0435\u043c\u043d\u044b\u0445 \u043d\u0430\u043a\u043e\u043f\u0438\u0442\u0435\u043b\u044f\u0445 \u043c\u043e\u0436\u0435\u0442 \u043f\u0440\u0438\u0432\u0435\u0441\u0442\u0438 \u043a \u043f\u043e\u0442\u0435\u0440\u0435 \u0434\u0430\u043d\u043d\u044b\u0445. \u041f\u0440\u043e\u0431\u043b\u0435\u043c\u044b \u0432\u043e\u0437\u043d\u0438\u043a\u0430\u044e\u0442 \u0441 \u0434\u0438\u0441\u043a\u0430\u043c\u0438 WD Red \u0451\u043c\u043a\u043e\u0441\u0442\u044c\u044e \u043e\u0442 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