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 ƙananan, suna farawa daga 2TB HDD SMR faifai (tiled)ba tare da kayyade shi a cikin ƙayyadaddun bayanai ba: WD, Seagate, Toshiba

A Intanet da kafofin watsa labarai na Ingilishi, ana sukar irin waɗannan ayyuka kuma, ina tsammanin, daidai ne. A cikin Rasha, an lura da albarkatun THG tare da labarin Western Digital yana amfani da DM-SMR, yana yin WD Red tafiyarwa ta dace da NAS da RAID. Wannan labarin, a cikin hukunci na, ƙarya ce marar kunya, daga take har zuwa ƙarshe: "Tare da fasahar rikodi na DM-SMR, Western Digital ta sanya WD Red rumbun kwamfutarka ta dace da NAS da RAID." Yana da ban sha'awa cewa a cikin Turanci version 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 daga wannan yanayin. Ya gano cewa RAID dumps, wanda ake yi a lokacin da ƙara sabon drive zuwa data kasance RAID array sa'an nan kuma sake rubuta shi don daidaita damar shiga, ya sa tsarin ya cire sabon WD Red HDDs daga sarrafawa.

Ba daidai ba ne ainihin abin da ake nufi da "tsarin yana cire sabbin WD Red HDDs daga ƙarƙashin ikonsa." - amma bisa ga ma'anar shawarwarin, wannan shine mafita.

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

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

A cikin yanayin ZFS, mai warwarewa ba shine ƙarshen-zuwa-ƙarshen binciken matakin toshewa ba, amma yana yin tsalle a cikin faifai gabaɗaya yayin da aka mayar da kowane fayil zuwa daidaito. Wannan ya bayyana yana haifar da wani batu akan WD40EFAX, inda buƙatar bincika sashin da ba a riga an rubuta shi ba don sa tuƙi ya shiga cikin "IDN Ba a Sami (IDNF)" kuskure kuma jefa kuskuren I/O hardware daga dubawa ga tsarin runduna.

Masu kula da RAID (hardware ko software, RAID5/6 ko ZFS) za su yanke hukunci da gaske cewa injin ɗin ba shi da kyau bayan kaɗan daga cikinsu kuma su fitar da shi daga tsararru idan bai riga ya ƙare ba.

Wannan tabbas ya yi daidai da abin da na lura - mai karɓar yana tafiya a kusan 100MB / s na kusan mintuna 40, bayan haka direbobin “su mutu” kuma su mutu akai-akai idan na yi ƙoƙarin sake kunna mai karɓar, duk da haka, idan na bar shi - bayan awa ɗaya ko makamancin haka. , suna aiki na tsawon minti 40 kafin su fadi.

Yana da wuya a yi tunanin abin da ya sa thg.ru daidai ya yi wannan. Mutum zai iya tsammani ko hakan ya kasance saboda matsin lamba daga masu talla. A kowane hali, halin da ake ciki lokacin da shahararrun abubuwan tafiyar da aka yi niyya na musamman don NAS ana maye gurbinsu cikin shiru da waɗanda ba su dace ba a farashi ɗaya kuma ba tare da canza ƙayyadaddun bayanai ba ya cancanci kulawa.

A taron An ambaci matsalar akan gidan yanar gizon WD. Asalin 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 fahimta, matsalar ita ce
WD RED - WD Red EFAX faifan SMR ne kuma suna da 256 MB na cache. Motocin EFRX - kar ku yi amfani da SMR (waɗannan faifan CMR ne na yau da kullun) kuma suna da cache 64 MB
Toshiba yana da samfura da yawa Karin bayani anan
Seagate yana da jerin abubuwa da yawa - Karin bayani anan

source: www.habr.com