{"id":33702,"date":"2019-10-31T21:54:15","date_gmt":"2019-10-31T18:54:15","guid":{"rendered":"https:\/\/prohoster.info\/blog\/monitoring-sostoyaniya-ssd-v-massivah-qsan\/"},"modified":"2019-10-31T21:54:15","modified_gmt":"2019-10-31T18:54:15","slug":"monitoring-sostoyaniya-ssd-v-massivah-qsan","status":"publish","type":"post","link":"https:\/\/prohoster.info\/et\/blog\/administrirovanie\/monitoring-sostoyaniya-ssd-v-massivah-qsan","title":{"rendered":"SSD-kontrollimine Qsan maatriksites","gt_translate_keys":[{"key":"rendered","format":"text"}]},"content":{"rendered":"

Kasutades tahkistetihendusi andmete salvestamise valdkonnas ei \u00fcllata keegi. SSD-d on kindlalt sisenenud IT seadmete igap\u00e4evaellu alates personaalarvutitest ja s\u00fclearvutitest kuni serverite ja andmesalvestuss\u00fcsteemideni. Selle aja jooksul on vahetunud mitu SSD p\u00f5lvkonda, millest iga\u00fchel on olnud paremad omadused j\u00f5udluse, usaldusv\u00e4\u00e4rsuse ja maksimaalse mahutavuse osas. Kuid k\u00fcsimus SSD kirjutamise ressursi j\u00e4lgimisest on endiselt aktuaalne.<\/p>\n

<\/p>\n

\"SSD-kontrollimine
\n<\/a><\/noindex><\/p>\n

Tahkisdrive'id on oma f\u00fc\u00fcsilise ehituse t\u00f5ttu ettearvatavalt piiratud kirjutamisressursiga. Ning see, et SSD-le kirjutatakse t\u00f5epoolest palju rohkem andmeid, kui sinna saadetakse hosti kaudu (eriti RAID r\u00fchmas), viib meid veel l\u00e4hemale m\u00e4rgitud piirangule. See asjaolu on teatud m\u00f5ttes hirm m\u00f5nedel kasutajatel SSD-de kasutamise ees.<\/p>\n

<\/p>\n

Tegelikult ei ole asjad \u00fcldse nii halvad. Arvutatud DWPD ressursi esitatakse kogu salvesti garantii perioodi jooksul (tavaliselt 3-5 aastat). Seet\u00f5ttu on reaalsed kirjutamisressursid TBW v\u00e4ga muljetavaldavad, mis v\u00f5imaldab mitte karta SSD 'hommikul \u00e4ra kulutada' m\u00f5ne kuuga. Veelgi enam, mitmel juhul saab salvestajaid ajutiselt kasutada intensiivsemal re\u017eiimil, kui tootja on ette n\u00e4inud just t\u00e4nu k\u00f5rgetele TBW v\u00e4\u00e4rtustele. Siiski ei v\u00e4lista see vajadust j\u00e4lgida iga konkreetse SSD kirjutamisressursi hetkeseisu, et proaktiivselt asendada, kui saavutatakse teatud k\u00fcnnised.<\/p>\n

<\/p>\n

Iga andmesalvestuss\u00fcsteemi tootja rakendab selle funktsiooni omal moel. Kuid sagedamini on see lihtsalt salvesti omadus: t\u00f6\u00f6tab \/ ei t\u00f6\u00f6ta. Qsan<\/a><\/noindex> oma K\u00f5ik Flash s\u00fcsteemid<\/a><\/noindex>, vastupidi, t\u00f5i v\u00e4lja t\u00e4ieliku visualiseerimise hetke SSD aktiivsuse parameetritest eraldi mooduli kujul nimega QSLife. See moodul on uue operatsioonis\u00fcsteemi lahutamatu osa XEVO<\/a><\/noindex>, mille juhtimisel t\u00f6\u00f6tavad tulevikus k\u00f5ik Qsan andmesalvestuss\u00fcsteemid.<\/p>\n

<\/p>\n

Iga SSD-s\u00fcsteemis kuvatakse praegune eluiga maksimaalselt kergesti m\u00f5istetaval kujul. Pole saladus, et k\u00f5ik kaasaegsed SSD-d peavad ise arvestust neile salvestatud plokkide \u00fcle. Nendest v\u00e4\u00e4rtustest l\u00e4htudes arvutab s\u00fcsteem kandja kulumise taseme vastavalt selle jaotusele. L\u00f5pptulemus kuvatakse protsentidena t\u00e4iesti uue SSD n\u00e4itajast. Samuti tasub m\u00e4rkida, et kulumise aste arvutatakse mitte ainult selle ajavahemiku jooksul, mil kandja t\u00f6\u00f6tas All Flash Qsan-massiivis, vaid kogu tema eluea jooksul, sealhulgas muude s\u00fcsteemide koosseisus (kui selline on olnud).<\/p>\n

<\/p>\n

\"SSD-kontrollimine<\/p>\n

Lisaks lihtsustatud teabele kandja kohta, saab teada ka m\u00f5ned \u00fcksikasjad. Eelk\u00f5ige andmete maht, mis on kogu tema elu jooksul sellele salvestatud. Ja aja jooksul, mil kandja t\u00f6\u00f6tas All Flash Qsan-massiivis<\/a><\/noindex>, on saadaval graafikud tema t\u00f6\u00f6 kohta lugemise ja salvestamise operatsioonides. Statistika kogutakse reaalajas ja on saadaval igasuguse perioodi jaoks, vaatluse s\u00fcgavus kuni \u00fche aasta.<\/p>\n

<\/p>\n

\"SSD-kontrollimine<\/p>\n

Muidugi, selle funktsionaalsuse eesm\u00e4rk ei ole mitte ainult ilusate graafikute loomine administraatori r\u00f5\u00f5muks, vaid ka aktiivne anal\u00fc\u00fcs kandjate seisundist ja potentsiaalsete probleemide ennetamine tulevikus, mis on seotud nende kulumisega. Seet\u00f5ttu on SSD eluea osas v\u00f5imalik seada palju l\u00e4viv\u00e4\u00e4rtusi ja vastavaid tegevusi, mis on seotud SSD salvestusressursi ammendumisega.<\/p>\n

<\/p>\n

\"SSD-kontrollimine<\/p>\n

Kui vaadata muid mudelid andmekeskuse seadmetest (mitte spetsialiseeritud All Flash, vaid universaalsed) Qsanilt<\/a><\/noindex>, siis neist puudub sarnane visualiseeritud aruanne kandjate kohta. See on m\u00f5istetav: kindlasti peab lipulaev mingil viisil mainstreamist eristuma. Siiski viiakse ka regulaarsete tootesarjade puhul sarnast j\u00e4lgimist alati l\u00e4bi. Jah, ilma kasutuse ja j\u00f5udluse statistika kogumiseta. Kuid peamine funktsioon salvestusressursi j\u00e4lgimiseks on siiski olemas.<\/p>\n

<\/p>\n

\"SSD-kontrollimine<\/p>\n

T\u00e4nu tahkete k\u00f5vakettaste tootmistehnoloogiate pidevale t\u00e4iustamisele on k\u00fcsimus nende usaldusv\u00e4\u00e4rsusest natuke vaibunud. Siiski on nende kirjutusressursi j\u00e4lgimine endiselt aktuaalne. N\u00f5uetekohaselt seadistatud j\u00e4lgimine v\u00f5imaldab administraatoril ennustada SSD-de vananemist vastavalt tegelikele praegustele koormustele ning ettev\u00f5tte juhtkonnal arvutada TCO (kokkuomamiskulud).<\/p><\/blockquote>\n

Allikas: habr.com<\/a><\/p>","protected":false,"gt_translate_keys":[{"key":"rendered","format":"html"}]},"excerpt":{"rendered":"

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