SMR (tiled) rumbun kwamfyuta ba tare da nuna kasancewar SMR ba ya shiga tashoshin tallace-tallace

Duk masana'antun uku sun fara siyar da ƙananan HDDs, suna farawa daga 2TB. SMR faifai (tiled), ba tare da kayyade shi a cikin ƙayyadaddun bayanai ba: WD, Seagate, Toshiba

Ana sukar irin waɗannan ayyukan akan intanet na Ingilishi da kuma a cikin kafofin watsa labarai, kuma daidai ne, ina tsammanin. A cikin Rasha, albarkatun THG sun buga labarin Western Digital Yana Amfani da DM-SMR, Yin WD Red Drives Ya dace da NAS da RAIDWannan labarin, a ganina, ƙarya ce marar kunya, daga take har zuwa ƙarshe: "Na gode da fasahar rikodi na DM-SMR, Western Digital ta sanya WD Red rumbun kwamfutarka ta dace da NAS da RAID." Abin sha'awa, a cikin fassarar Turanci na labarin Western Digital Fesses Up: Wasu Red HDDs Suna Amfani da Slow SMR Tech Ba tare da Bayyanawa ba
babu alamar irin wannan karkatar da gaskiya

Hakanan a cikin rubutun thg.ru yana nufin Alan Brown,

Alan Brown, mai kula da cibiyar sadarwa a dakin gwaje-gwajen kimiyyar sararin samaniya ta UCL Mullard, ya sami mafita ga wannan matsalar. Ya gano cewa lokacin zazzage bayanai daga tsararrun RAID-wanda ke faruwa lokacin ƙara sabon tuƙi zuwa tsararrun RAID ɗin da ake da su sannan kuma a sake rubuta shi don daidaita samun dama-tsarin yana rasa iko da sabon WD Red HDDs.

Ba daidai ba ne abin da ainihin "tsarin yana ɗaukar sabon WD Red HDDs daga ikonsa" yana nufin - amma a ma'anar jumla, shine mafita.

A lokaci guda Alan a zahiri ya rubuta akan batun - amma gaba daya akasin haka

Motar WD40EFAX na cika da sifili ya kai 40MB/s, amma ya fara a 120MB/s.

A cikin yanayin ZFS, mai warwarewa baya duba ƙarshen-zuwa-ƙarshe a matakin toshe, sai dai yana tsalle a kusa da faifai gabaɗaya yayin da yake dawo da daidaiton kowane fayil. Wannan ya bayyana yana haifar da wani batu akan WD40EFAX, inda buƙatar bincika sashin da ba a riga an rubuta shi ba don haifar da tuƙi don shiga cikin kuskuren "Sashin ID ɗin Ba a Sami (IDNF)" kuma ya haifar da kuskuren I/O hardware daga mai dubawa zuwa tsarin mai watsa shiri.

Masu kula da RAID (hardware ko software, RAID5/6 ko ZFS) za su yanke shawarar da hankali cewa tuƙi ba ta da kyau bayan kaɗan daga cikin waɗannan kuma su jefar da shi daga cikin tsararru idan bai riga ya yi haka ba bayan an ƙare lokaci.

Tabbas wannan ya yi daidai da abin da na lura - na'urar tana aiki a kusan 100MB / s na kusan mintuna 40, bayan haka na'urorin "su mutu" kuma su sake mutuwa idan na yi ƙoƙarin sake kunna na'urar, amma idan na bar shi - sa'a daya ko fiye da haka sai su sake gudu na tsawon minti 40 kafin su fita.

Yana da wuya a yi tunanin abin da daidai ya sa thg.ru yin wannan. Mutum zai iya hasashe ko matsin lamba ne daga masu talla. A kowane hali, yanayin da ake maye gurbin fitattun kayan aikin da aka ƙera musamman don NAS cikin shiru tare da waɗanda ba su dace ba a farashi ɗaya kuma ba tare da canza ƙayyadaddun bayanai ba abin lura ne.

A cikin taron An ambaci matsalar akan gidan yanar gizon WDAsalin daya ne.

Na sayi 3 WD REDs don maye gurbin tsofaffin tuƙi a cikin tsararrun ZFS

DUK UKU suna kasawa yayin sake dawo da kurakuran IDNF (Ba a sami ID na yanki ba):

Kamar yadda na iya fahimta, matsalar ita ce
WD RED - WD Red EFAX - su ne SMR drives kuma suna da 256 MB na cache. Motocin EFRX ba sa amfani da SMR (su ne na yau da kullun na CMR) kuma suna da 64 MB na cache.
Toshiba yana da samfura da yawa Karin bayani anan
Seagate yana da jerin abubuwa da yawa - Karin bayani anan

source: www.habr.com