{"id":54586,"date":"2019-12-29T00:00:00","date_gmt":"2019-12-28T21:00:00","guid":{"rendered":"https:\/\/prohoster.info\/blog\/blog_prohoster\/nuzhno-li-sozdavat-raid-massiv-iz-ssd-i-kakie-kontrollery-dlya-etogo-nuzhny"},"modified":"2020-02-18T14:02:37","modified_gmt":"2020-02-18T11:02:37","slug":"nuzhno-li-sozdavat-raid-massiv-iz-ssd-i-kakie-kontrollery-dlya-etogo-nuzhny","status":"publish","type":"post","link":"https:\/\/prohoster.info\/sq\/blog\/administrirovanie\/nuzhno-li-sozdavat-raid-massiv-iz-ssd-i-kakie-kontrollery-dlya-etogo-nuzhny","title":{"rendered":"A duhet b\u00ebr\u00eb nj\u00eb RAID nga SSD dhe cil\u00ebt kontrollues jan\u00eb t\u00eb nevojsh\u00ebm p\u00ebr k\u00ebt\u00eb?","gt_translate_keys":[{"key":"rendered","format":"text"}]},"content":{"rendered":"

P\u00ebrsh\u00ebndetje Habr! N\u00eb k\u00ebt\u00eb material do t\u00eb flasim n\u00ebse ia vlen t\u00eb organizoni RAID nga zgjidhjet SSD SATA dhe NVMe, dhe n\u00ebse ka ndonj\u00eb p\u00ebrfitim t\u00eb konsideruesh\u00ebm nga kjo. Ne vendos\u00ebm t\u00eb hetojm\u00eb k\u00ebt\u00eb \u00e7\u00ebshtje, duke shqyrtuar llojet dhe format e kontrolluesve q\u00eb e mund\u00ebsojn\u00eb k\u00ebt\u00eb, si dhe fushat e p\u00ebrdorimit t\u00eb k\u00ebtyre konfigurimeve.<\/p>\n

\"A
\n<\/a><\/noindex>
\nK\u00ebshtu ose tjetra, secili prej nesh ka d\u00ebgjuar ndonj\u00ebher\u00eb p\u00ebr p\u00ebrkufizime si \u201cRAID\u201d, \u201cRAID-masiv\u201d, \u201cRAID-kontrollues\u201d, por me siguri nuk i ka kushtuar r\u00ebnd\u00ebsi serioze, sepse nj\u00eb p\u00ebrdorues i zakonsh\u00ebm i kompjuter\u00ebve nuk \u00ebsht\u00eb shum\u00eb i interesuar p\u00ebr k\u00ebto. Megjithat\u00eb, t\u00eb gjith\u00eb d\u00ebshirojn\u00eb shpejt\u00ebsi t\u00eb lart\u00eb nga pajisjet e brendshme dhe nj\u00eb funksionim pa ndalesa. Sepse, pavar\u00ebsisht se sa e fuqishme \u00ebsht\u00eb e gjith\u00eb ndihmesa e kompjuterit, shpejt\u00ebsia e pun\u00ebs s\u00eb nj\u00ebsis\u00eb p\u00ebrb\u00ebn ngushtic\u00ebn, kur flasim p\u00ebr performanc\u00ebn e p\u00ebrgjithshme t\u00eb kompjuterit dhe serverit. <\/p>\n

Kjo ishte e v\u00ebrtet\u00eb deri n\u00eb momentin kur HDD tradicionale u z\u00ebvend\u00ebsuan nga SSD moderne NVMe me kapacitet krahasues prej 1 TB e m\u00eb shum\u00eb. N\u00ebse m\u00eb par\u00eb kompjuter\u00ebt personal\u00eb shpesh kishin kombinime SSD SATA me disa HDD me kapacitet t\u00eb lart\u00eb, sot po z\u00ebvend\u00ebsohen me nj\u00eb tjet\u00ebr zgjidhje \u2014 SSD NVMe me disa SSD SATA me kapacitet t\u00eb lart\u00eb. N\u00ebse flasim p\u00ebr server\u00ebt korporativ\u00eb dhe \"rethet\" e mjeteve, shum\u00eb tashm\u00eb jan\u00eb kaluar me sukses n\u00eb SSD SATA, thjesht sepse ato jan\u00eb m\u00eb t\u00eb shpejta se \"kutit\u00eb e ndjeshme\" dhe jan\u00eb n\u00eb gjendje t\u00eb p\u00ebrpunojn\u00eb m\u00eb shum\u00eb operacione hyrje\/dalite nj\u00ebkoh\u00ebsisht.<\/p>\n

\"A
\n
\nMegjithat\u00eb, q\u00ebndresa e sistemit \u00ebsht\u00eb ende n\u00eb nj\u00eb nivel mjaft t\u00eb ul\u00ebt: nuk mund t\u00eb parashikojm\u00eb me sakt\u00ebsi, as kujt, p\u00ebr nj\u00eb jav\u00eb, kur nj\u00eb ose tjet\u00ebr mbajt\u00ebs solid do t\u00eb ndaloj\u00eb s\u00eb funksionuari. Nd\u00ebrsa HDD \"vdesin\" gradualisht, duke lejuar t\u00eb kapen simptomat dhe t\u00eb merren masa, SSD \"vdesin\" menj\u00ebher\u00eb dhe pa paralajm\u00ebrim. Dhe tani \u00ebsht\u00eb koha e duhur p\u00ebr t\u00eb kuptuar, pse \u00ebsht\u00eb e nevojshme gjith\u00eb kjo? A duhet t\u00eb organizojm\u00eb RAIDs t\u00eb bazuara n\u00eb zgjidhjet e mbajt\u00ebsve t\u00eb ngurt\u00eb SSD SATA dhe NVMe, dhe a do t\u00eb ket\u00eb ndonj\u00eb profit t\u00eb r\u00ebnd\u00ebsish\u00ebm nga kjo? <\/p>\n

Pse na nevojitet nj\u00eb RAID?<\/h2>\n

\nFjala \"masiv\" n\u00ebnkupton se p\u00ebr krijimin e tij p\u00ebrdoren disa ruajt\u00ebs (HDD dhe SSD), t\u00eb cilat bashkohen me an\u00eb t\u00eb nj\u00eb kontrolluesi RAID dhe njihen nga OS si nj\u00eb depo e vetme t\u00eb t\u00eb dh\u00ebnave. Problemi kryesor q\u00eb lejojn\u00eb t\u00eb zgjidhin array-t RAID \u00ebsht\u00eb minimizimi i koh\u00ebs s\u00eb aksesit n\u00eb t\u00eb dh\u00ebna, rritja e shpejt\u00ebsis\u00eb s\u00eb leximit\/shkrimit dhe besueshm\u00ebris\u00eb, e cila arrihet fal\u00eb mund\u00ebsis\u00eb s\u00eb riparimit t\u00eb shpejt\u00eb n\u00eb rast d\u00ebshtimi. P\u00ebr ta th\u00ebn\u00eb ndryshe, p\u00ebr backup-at n\u00eb sht\u00ebpi nuk \u00ebsht\u00eb aspak e nevojshme t\u00eb p\u00ebrdoret RAID. Por n\u00ebse keni nj\u00eb server sht\u00ebpiak, p\u00ebr t\u00eb cilin nevojitet qasje e vazhdueshme 24\/7 \u2014 kjo \u00ebsht\u00eb nj\u00eb tjet\u00ebr gj\u00eb.<\/p>\n

Ekzistojn\u00eb m\u00eb shum\u00eb se dhjet\u00eb n\u00eb nivelin e RAID-it, \u00e7do nj\u00eb prej t\u00eb cilave dallon p\u00ebr numrin e pajisjeve t\u00eb p\u00ebrdorura brenda tij dhe ka avantazhe dhe disavantazhe: p\u00ebr shembull, RAID 0 ofron nj\u00eb performanc\u00eb t\u00eb lart\u00eb pa q\u00ebndrueshm\u00ebri, RAID 1 mund\u00ebson reflektimin automatike t\u00eb t\u00eb dh\u00ebnave pa rritje t\u00eb shpejt\u00ebsis\u00eb, nd\u00ebrsa RAID 10 kombinon mund\u00ebsit\u00eb e t\u00eb dyve t\u00eb p\u00ebrmendura m\u00eb par\u00eb. RAID 0 dhe 1 jan\u00eb m\u00eb t\u00eb thjeshtit (pasi nuk k\u00ebrkojn\u00eb llogaritje programore) dhe, si pasoj\u00eb, jan\u00eb m\u00eb t\u00eb popullarizuarit. N\u00eb fund, zgjedhja p\u00ebr nj\u00eb nivel t\u00eb caktuar RAID varet nga detyrat q\u00eb i \u00ebsht\u00eb ngarkuar grumbullit t\u00eb disk\u00ebve dhe mund\u00ebsit\u00eb e kontrolluesit RAID.<\/p>\n

RAID-i sht\u00ebpiak dhe korporativ: \u00e7far\u00eb ndryshimi ka?<\/h2>\n

\nBaza e \u00e7do biznesi modern jan\u00eb volumet e m\u00ebdha t\u00eb t\u00eb dh\u00ebnave, t\u00eb cilat duhet t\u00eb ruhen me siguri n\u00eb server\u00ebt e kompanive. P\u00ebr m\u00eb tep\u00ebr, si\u00e7 e theksuam edhe m\u00eb lart, duhet t\u00eb sigurohet qasje e vazhdueshme 24\/7. \u00cbsht\u00eb e qart\u00eb se, s\u00eb bashku me 'harduerin', pjesa e softuerit ka r\u00ebnd\u00ebsi, por n\u00eb k\u00ebt\u00eb rast ne po flasim p\u00ebr pajisjet q\u00eb sigurojn\u00eb ruajtjen dhe p\u00ebrpunimin e informacionit. Asnj\u00eb soft nuk do t\u00eb shp\u00ebtoj\u00eb kompanin\u00eb nga falimentimi n\u00ebse pajisjet 'harduerike' nuk p\u00ebrmbushin detyrat q\u00eb i jan\u00eb ngarkuar.<\/p>\n

\"A
\n
\nP\u00ebr k\u00ebto detyra, \u00e7do prodhues 'hardueri' ofron ashtu si\u00e7 quhen pajisje korporative. Te Kingston, k\u00ebto jan\u00eb zgjidhjet e fuqishme SSD n\u00eb form\u00ebn e modeleve SATA Kingston 450R (DC450R)<\/a><\/noindex> dhe seria DC500<\/a><\/noindex>, si dhe modelet NVMe DC1000M U.2 NVMe, DCU1000 U.2 NVMe dhe DCP-1000 PCI-e, t\u00eb destinuara p\u00ebr t'u p\u00ebrdorur n\u00eb QENDRA (qendrat e p\u00ebrpunimit t\u00eb t\u00eb dh\u00ebnave) dhe superkompjuter\u00eb. Ndarjet e tilla me k\u00ebto ruajt\u00ebse zakonisht p\u00ebrdoren n\u00eb bashk\u00ebpunim me kontroler\u00ebt harduerik\u00eb.<\/p>\n

\"A
\n
\nNd\u00ebrsa p\u00ebr tregun e konsumator\u00ebve (dmth. p\u00ebr PC-t\u00eb e sht\u00ebpis\u00eb dhe server\u00ebt NAS) jan\u00eb t\u00eb disponueshme ruajt\u00ebse si Kingston KC2000<\/a><\/noindex> NVMe PCIe, por \u00e7far\u00eb n\u00eb k\u00ebt\u00eb rast nuk \u00ebsht\u00eb e nevojshme t\u00eb blini nj\u00eb kontrollues harduerik. Mjafton t\u00eb kufizoheni n\u00eb at\u00eb t\u00eb integruar n\u00eb pllak\u00ebn n\u00ebn\u00ebs t\u00eb PC-s\u00eb ose serverin NAS, n\u00ebse natyrisht nuk planifikoni t\u00eb nd\u00ebrtoni vet\u00eb nj\u00eb server sht\u00ebpiak p\u00ebr detyra t\u00eb pazakonta (p\u00ebr shembull, t\u00eb krijoni nj\u00eb hostim t\u00eb vog\u00ebl sht\u00ebpiak p\u00ebr miqt\u00eb). P\u00ebr m\u00eb tep\u00ebr, RAID-\u00ebt sht\u00ebpiak\u00eb, si rregull, nuk parashikojn\u00eb nj\u00eb num\u00ebr t\u00eb madh t\u00eb disqeve, por p\u00ebrqendrohen n\u00eb dy, kat\u00ebr ose tet\u00eb pajisje (m\u00eb shpesh SATA).<\/p>\n

Llojet dhe kategorit\u00eb e kontrolluesve RAID<\/h2>\n

\nEkzistojn\u00eb tre lloje kontrolluesish RAID, t\u00eb bazuar n\u00eb principet e zbatimit t\u00eb grupeve RAID: <\/p>\n

1. Programor\u00ebt, ku menaxhimi i grupit bie mbi CPU dhe DRAM (pra, ekzekutimi i kodit ndodh n\u00eb procesor).<\/p>\n

2. T\u00eb integruar, q\u00eb do t\u00eb thot\u00eb t\u00eb nd\u00ebrtuar n\u00eb pllakat n\u00ebn\u00ebs t\u00eb PC-s\u00eb ose server\u00ebve NAS.<\/p>\n

3. Harduerik\u00eb (modular\u00eb), q\u00eb p\u00ebrb\u00ebhen nga karta t\u00eb ve\u00e7anta zgjerimi p\u00ebr lidhjet PCI\/PCIe t\u00eb pllakave sistemike. <\/p>\n

Cili \u00ebsht\u00eb dallimi kryesor midis tyre? Kontrolluesit RAID programatik jan\u00eb m\u00eb t\u00eb dob\u00ebt n\u00eb performanc\u00eb dhe q\u00ebndrueshm\u00ebri n\u00eb krahasim me ata t\u00eb integruar dhe ata harduerik\u00eb, por nuk k\u00ebrkojn\u00eb pajisje speciale p\u00ebr t\u00eb funksionuar. Megjithat\u00eb, \u00ebsht\u00eb e r\u00ebnd\u00ebsishme t\u00eb sigurohet q\u00eb procesori i sistemit host \u00ebsht\u00eb mjaft i fuqish\u00ebm p\u00ebr t\u00eb drejtuar softuerin RAID, pa e ndikuar negativisht performanc\u00ebn e aplikacioneve q\u00eb po punojn\u00eb gjithashtu n\u00eb host. Kontrolluesit e integruar zakonisht kan\u00eb memorie t\u00eb tyre cache dhe p\u00ebrdorin disa burime t\u00eb CPU-s\u00eb. <\/p>\n

Nd\u00ebrsa ata harduerik\u00eb kan\u00eb si memorjen e tyre cache ashtu edhe nj\u00eb procesor t\u00eb integruar p\u00ebr t\u00eb realizuar algoritmet programatike. Zakonisht, ata lejojn\u00eb implementimin e t\u00eb gjitha llojeve t\u00eb niveleve RAID dhe mb\u00ebshtesin direkt disa lloje drives. P\u00ebr shembull, me kontrolluesit harduerik\u00eb modern\u00eb t\u00eb kompanis\u00eb Broadcom, mund t\u00eb lidhni nj\u00ebkoh\u00ebsisht pajisje SATA, SAS dhe NVMe, \u00e7ka lejon q\u00eb kontrolluesi t\u00eb mos ndryshoj\u00eb gjat\u00eb p\u00ebrmir\u00ebsimeve t\u00eb server\u00ebve: sidomos kur kaloni nga SSD SATA n\u00eb SSD NVMe, nuk do t\u00eb nevojitet ndryshimi i kontrolluesve.<\/p>\n

\"A
\n
\nPik\u00ebrisht, n\u00eb k\u00ebt\u00eb not\u00eb arrit\u00ebm n\u00eb tipizimin e vet\u00eb kontrollor\u00ebve. N\u00ebse ka kontrollor\u00eb me tre moda, a duhet t\u00eb ket\u00eb edhe disa t\u00eb tjer\u00eb? N\u00eb k\u00ebt\u00eb rast, p\u00ebrgjigjja do t\u00eb jet\u00eb pozitive. Sipas funksioneve dhe mund\u00ebsive, kontrollor\u00ebt RAID mund t\u00eb ndahen n\u00eb disa tipe:<\/p>\n

1. Kontrollor\u00eb t\u00eb zakonsh\u00ebm me funksion RAID<\/b>
\nN\u00eb t\u00eb gjith\u00eb hierarkin\u00eb, ky \u00ebsht\u00eb kontrollori m\u00eb i thjesht\u00eb, i cili lejon bashkimin e HDD dhe SSD n\u00eb grupe RAID t\u00eb niveleve \"0\", \"1\" ose \"0+1\". Kjo realizohet programatikisht n\u00eb nivelin e firmware-it. Megjithat\u00eb, k\u00ebto pajisje v\u00ebshtir\u00eb se mund t\u00eb rekomandohen p\u00ebr p\u00ebrdorim n\u00eb segmentin e korporatave, pasi u mungon memorie dhe nuk mb\u00ebshteten nivelet e grupeve \"5\", \"3\", etj. Por p\u00ebr nj\u00eb server sht\u00ebpiak t\u00eb nivelit fillestar, ato jan\u00eb plot\u00ebsisht t\u00eb p\u00ebrshtatshme.<\/p>\n

2. Kontrollor\u00ebt q\u00eb punojn\u00eb n\u00eb \u00e7ift me kontrollor\u00eb t\u00eb tjer\u00eb RAID<\/b>
\nKy\u00e7i i k\u00ebtij tipi mund t\u00eb punoj\u00eb n\u00eb \u00e7ift me kontrolluesit e integruar t\u00eb pllakave kryesore. Kjo \u00ebsht\u00eb realizuar n\u00eb parimin e m\u00ebposht\u00ebm: kontrolluesi i RAID-it disket merr p\u00ebrsip\u00ebr zgjidhjen e detyrave 'logjike', nd\u00ebrsa ai i integruar \u2014 funksionet e shk\u00ebmbimit t\u00eb t\u00eb dh\u00ebnave midis magazinave. Por ka nj\u00eb nuanc\u00eb: puna paralele e k\u00ebtyre kontrolluesve \u00ebsht\u00eb e mundur vet\u00ebm n\u00eb pllakat sistemore t\u00eb p\u00ebrputhshme, dhe kjo do t\u00eb thot\u00eb q\u00eb fusha e tyre e p\u00ebrdorimit ngushtohet seriozisht.<\/p>\n

3. Kontrolluesit e RAID-it t\u00eb pavarur<\/b>
\nK\u00ebto zgjidhje disket p\u00ebrmbajn\u00eb t\u00eb gjitha \u00e7ipat e nevojsh\u00ebm p\u00ebr t\u00eb punuar me server\u00ebt e klas\u00ebs korporative, duke pasur BIOS t\u00eb vet, memorie t\u00eb keqes dhe nj\u00eb procesor p\u00ebr korrigjimin e shpejt\u00eb t\u00eb gabimeve dhe llogaritjen e kontrollit t\u00eb shumave. P\u00ebr m\u00eb tep\u00ebr, ato p\u00ebrmbushin standardet e larta t\u00eb besueshm\u00ebris\u00eb n\u00eb aspektin e prodhimit dhe kan\u00eb module t\u00eb cil\u00ebsis\u00eb s\u00eb lart\u00eb t\u00eb memories.<\/p>\n

4. Kontrolluesit e jasht\u00ebm t\u00eb RAID-it<\/b>
\nNuk \u00ebsht\u00eb e v\u00ebshtir\u00eb t\u00eb kuptohet se t\u00eb gjith\u00eb kontrollet e p\u00ebrmendura m\u00eb sip\u00ebr jan\u00eb t\u00eb brendshme dhe marrin energji p\u00ebrmes portit PCIe t\u00eb pllak\u00ebs am\u00eb. \u00c7far\u00eb do t\u00eb thot\u00eb kjo? Kjo do t\u00eb thot\u00eb se nj\u00eb d\u00ebshtim i pllak\u00ebs am\u00eb mund t\u00eb sjell\u00eb gabime n\u00eb funksionimin e RAID-it dhe humbjen e t\u00eb dh\u00ebnave. Nd\u00ebrsa kontrollet e jashtme jan\u00eb t\u00eb liruar nga kjo keqkuptim, pasi ato vendosen n\u00eb nj\u00eb karikim t\u00eb ve\u00e7ant\u00eb me nj\u00eb blok t\u00eb pavarur energjie. N\u00eb aspektin e besueshm\u00ebris\u00eb, k\u00ebto kontrolle ofrojn\u00eb nivelin m\u00eb t\u00eb lart\u00eb t\u00eb ruajtjes s\u00eb t\u00eb dh\u00ebnave.<\/p>\n

Broadcom<\/a><\/noindex>, Microsemi Adaptec, Intel, IBM, Dell dhe Cisco jan\u00eb disa nga kompanit\u00eb q\u00eb ofrojn\u00eb kontrolle RAID harduerike n\u00eb dit\u00ebt e sotme.<\/p>\n

Modet e funksionimit t\u00eb kontrolleve RAID SAS\/SATA\/NVMe<\/h2>\n

\nQ\u00ebllimi kryesor i kontrolleve HBA- dhe RAID me tre modulet (ose kontrollet me funksionin Tri-Mode) \u00ebsht\u00eb t\u00eb krijojn\u00eb RAID harduerik mbi NVMe. Kompania Broadcom e ka k\u00ebt\u00eb mund\u00ebsi me kontrollet e seris\u00eb 9400: p\u00ebr shembull, MegaRAID 9460-16i<\/a><\/noindex>. Ai kategoria nj\u00eb tip t\u00eb pavarur RAID-kontrolluesve, i pajisur me kat\u00ebr lidhje SFF-8643 dhe, fal\u00eb mb\u00ebshtetjes Tri-Mode, lejon lidhjen e disqeve SATA\/SAS dhe NVMe nj\u00ebkoh\u00ebsisht. P\u00ebr m\u00eb tep\u00ebr, \u00ebsht\u00eb nj\u00eb nga kontrolluesit m\u00eb efikas n\u00eb treg (konsumon vet\u00ebm 17 vat energji, duke ofruar m\u00eb pak se 1,1 vat p\u00ebr secil\u00ebn nga 16 portet).<\/p>\n

\"A
\n
\nInterfaci i lidhjes \u00ebsht\u00eb PCI Express x8 versioni 3.1, i cili mund\u00ebson nj\u00eb kapacitet kalimi deri n\u00eb 64 Gbit\/s (n\u00eb vitin 2020 pritet t\u00eb shfaqen kontrollues t\u00eb PCI Express 4.0). N\u00eb thelb t\u00eb kontrolluesit me 16 porte \u00ebsht\u00eb nj\u00eb \u00e7ip dy-b\u00ebrthamor SAS3516<\/a><\/noindex> dhe 72-bit DDR4-2133 SDRAM (4 GB), si dhe ofrohet mund\u00ebsia e lidhjes deri n\u00eb 240 disqe SATA\/SAS-, ose deri n\u00eb 24 pajisje NVMe. Sa i p\u00ebrket organizimit t\u00eb grupeve RAID, mb\u00ebshteten nivelet \u201c0\u201d, \u201c1\u201d, \u201c5\u201d dhe \u201c6\u201d, si dhe \u201c10\u201d, \u201c50\u201d dhe \u201c60\u201d. S\u00eb fundi, memorie e caches MegaRAID 9460-16i<\/a><\/noindex> dhe kontrolluesve t\u00eb tjer\u00eb n\u00eb serin\u00eb 9400 \u00ebsht\u00eb e mbrojtur nga \u00e7rregullimet e tensionit me nj\u00eb modul shtes\u00eb CacheVault CVPM05.<\/p>\n

N\u00eb thelb t\u00eb teknologjis\u00eb me tri m\u00ebnyra q\u00ebndron funksioni i konvertimit t\u00eb t\u00eb dh\u00ebnave SerDes: konvertimi i p\u00ebrfaq\u00ebsimit sekondar t\u00eb t\u00eb dh\u00ebnave n\u00eb interfesat SAS\/SATA n\u00eb nj\u00eb form\u00eb paralel n\u00eb PCIe NVMe dhe anasjelltas. Kjo do t\u00eb thot\u00eb se kontrolluesi harmonizon shpejt\u00ebsit\u00eb dhe protokollet p\u00ebr t\u00eb punuar pa probleme me \u00e7do lloj t\u00eb treja pajisjeve t\u00eb ruajtjes. Kjo siguron nj\u00eb m\u00ebnyr\u00eb t\u00eb pand\u00ebrprer\u00eb p\u00ebr t\u00eb zgjeruar infrastrukturat e qendrave t\u00eb t\u00eb dh\u00ebnave: p\u00ebrdoruesit mund t\u00eb p\u00ebrdorin NVMe pa ndryshime t\u00eb dukshme n\u00eb konfigurimet e tjera t\u00eb sistemit. <\/p>\n

\"A
\n
\nMegjithat\u00eb, kur planifikoni konfigurimet me disqe NVMe, \u00ebsht\u00eb e r\u00ebnd\u00ebsishme t\u00eb keni parasysh se zgjidhjet NVMe p\u00ebrdorin 4 linja PCIe p\u00ebr lidhje, \u00e7ka do t\u00eb thot\u00eb se \u00e7do disk angazhon t\u00eb gjitha linjat e porteve SFF-8643. K\u00ebshtu, vet\u00ebm kat\u00ebr pajisje NVMe mund t\u00eb lidhen direkt me kontrolluesin MegaRAID 9460-16i. Ose mund t\u00eb kufizoheni n\u00eb dy zgjidhje NVMe nd\u00ebrsa lidhni n\u00eb t\u00eb nj\u00ebjt\u00ebn koh\u00eb tet\u00eb disqe SAS (shih skem\u00ebn e lidhjes m\u00eb posht\u00eb).<\/p>\n

\"A
\n
\nN\u00eb figur\u00eb tregohet p\u00ebrdorimi i konektorit \u00ab0\u00bb (C0 \/ Connector 0) dhe konektorit \u00ab1\u00bb p\u00ebr lidhjet NVMe, si dhe konektor\u00ebt \u00ab2\u00bb dhe \u00ab3\u00bb p\u00ebr lidhjet SAS. Ky vendosje mund t\u00eb ndryshohet n\u00eb m\u00ebnyr\u00eb t\u00eb kund\u00ebrt, por \u00e7do disk x4 NVMe duhet t\u00eb lidhet duke p\u00ebrdorur linjat gjasht\u00ebshe. Modet e funksionimit t\u00eb kontrollorit p\u00ebrcaktohen p\u00ebrmes mjeteve t\u00eb konfigurimit StorCLI ose Infrastruktur\u00ebs s\u00eb Nd\u00ebrfaqes Njer\u00ebzore (HII), e cila funksionon n\u00eb mjedisin UEFI. <\/p>\n

\"A
\n
\nRekimi i paracaktuar \u00ebsht\u00eb profili \u00abPD64\u00bb (mb\u00ebshtetje vet\u00ebm SAS \/ SATA). Si\u00e7 tham\u00eb m\u00eb lart, ka gjithsej tre profile: moda \u00abSAS\/SATA only mode\u00bb (PD240 \/ PD64 \/ PD 16), moda \u00abNVMe only mode\u00bb (PCIe4) dhe moda p\u00ebrzier\u00eb, n\u00eb t\u00eb cil\u00ebn mund t\u00eb punojn\u00eb t\u00eb gjitha llojet e disqeve: \u00abPD64-PCIe4\u00bb (mb\u00ebshtetje p\u00ebr 64 disqe fizike dhe virtuale me 4 disqe NVMe). N\u00eb mod\u00ebn e p\u00ebrzier\u00eb, vlera e profilit t\u00eb caktuar duhet t\u00eb jet\u00eb k\u00ebshtu \u2013 \u00abProfileID=13\u00bb. P\u00ebr ta th\u00ebn\u00eb, profili i zgjedhur ruhet si kryesor dhe nuk restaurohet madje as kur ktheheni n\u00eb cil\u00ebsimet e fabrik\u00ebs p\u00ebrmes komand\u00ebs Set Factory Defaults. Mund t\u00eb ndryshohet vet\u00ebm manualisht.<\/p>\n

A duhet t\u00eb krijoni nj\u00eb RAID n\u00eb SSD?<\/h2>\n

\nPra qart\u00ebsojm\u00eb, se RAID-array \u00ebsht\u00eb \u00e7el\u00ebsi p\u00ebr nj\u00eb performanc\u00eb t\u00eb shk\u00eblqyer. Por, a ia vlen t\u00eb krijoni nj\u00eb RAID nga disqet SSD p\u00ebr p\u00ebrdorim sht\u00ebpiak dhe korporativ? Shum\u00eb skeptik\u00eb thon\u00eb se rritja n\u00eb shpejt\u00ebsi nuk \u00ebsht\u00eb aq e r\u00ebnd\u00ebsishme sa p\u00ebr t\u00eb investuar n\u00eb disqet NVMe. Por, a \u00ebsht\u00eb v\u00ebrtet k\u00ebshtu? Me siguri, jo. Kufizimi m\u00eb i madh p\u00ebr p\u00ebrdorimin e SSD-ve n\u00eb RAID (si n\u00eb kushte sht\u00ebpiake ashtu edhe n\u00eb nivel korporativ) mund t\u00eb jet\u00eb vet\u00ebm \u00e7mimi. Si\u00e7 \u00ebsht\u00eb, kostoja p\u00ebr gigabajt hap\u00ebsir\u00eb me HDD \u00ebsht\u00eb ndjesh\u00ebm m\u00eb e lir\u00eb. <\/p>\n

Lidhja e disa SSD-ve me kontrollorin RAID p\u00ebr t\u00eb krijuar nj\u00eb array SSD n\u00eb konfigurime t\u00eb caktuara mund t\u00eb ket\u00eb nj\u00eb ndikim t\u00eb madh n\u00eb performanc\u00ebn. Megjithat\u00eb, nuk duhet harruar se performanca maksimale \u00ebsht\u00eb e kufizuar nga kapaciteti i kontrollorit RAID. Niveli RAID q\u00eb ofron shpejt\u00ebsin\u00eb m\u00eb t\u00eb mir\u00eb \u00ebsht\u00eb RAID 0.<\/p>\n

\"A
\n
\nOrganizimi i nj\u00eb RAID 0 tradicional me dy SSD, ku p\u00ebrdoret metoda e ndarjes s\u00eb t\u00eb dh\u00ebnave n\u00eb blloqe fikse dhe alternimi mes depozita t\u00eb ngurta, do t\u00eb \u00e7oj\u00eb n\u00eb dyfishimin e performanc\u00ebs (n\u00eb krahasim me shpejt\u00ebsit\u00eb q\u00eb ofron nj\u00eb SSD). N\u00eb k\u00ebt\u00eb rast, nj\u00eb grup RAID 0 me kat\u00ebr SSD do t\u00eb jet\u00eb kat\u00ebr her\u00eb m\u00eb i shpejt\u00eb se SSD m\u00eb i ngadalsh\u00ebm n\u00eb grup (n\u00eb var\u00ebsi t\u00eb kufizimit t\u00eb kapacitetit n\u00eb nivelin e kontrolluesit RAID SSD). <\/p>\n

Duke nxjerrim nga aritmetika e thjesht\u00eb, SATA SSD \u00ebsht\u00eb rreth 3 her\u00eb m\u00eb i shpejt\u00eb se tradicionalja SATA HDD. Zgjidhjet NVMe jan\u00eb edhe m\u00eb efikase \u2014 deri n\u00eb 10 her\u00eb e m\u00eb shum\u00eb. N\u00ebse dy hard disqe n\u00eb RAID-niveli zero do t\u00eb tregojn\u00eb nj\u00eb performanc\u00eb t\u00eb dyfishuar, duke e rritur at\u00eb me 50%, dy SATA SSD do t\u00eb ishin 6 her\u00eb m\u00eb t\u00eb shpejt\u00eb, nd\u00ebrsa dy NVMe SSD do t\u00eb ishin 20 her\u00eb m\u00eb t\u00eb shpejt\u00eb. N\u00eb ve\u00e7anti, nj\u00eb drive Kingston KC2000 NVMe PCIe mund t\u00eb arrij\u00eb shpejt\u00ebsi leximi dhe shkrimi rendor deri n\u00eb 3200 MB\/s, q\u00eb n\u00eb formatin RAID 0 arrin n\u00eb 6 GB\/s t\u00eb konsiderueshme. Po ashtu, shpejt\u00ebsia e leximit\/shkrimit t\u00eb blloqeve t\u00eb rastit me p\u00ebrmasa 4 KB do t\u00eb kthehet nga 350,000 IOPS n\u00eb 700,000 IOPS. Por\u2026 n\u00eb t\u00eb nj\u00ebjt\u00ebn koh\u00eb, RAID-i \u201czero\u201d nuk na ofron mbivendosje.<\/p>\n

Mund ta themi se n\u00eb kushte sht\u00ebpiake, tep\u00ebrsi e ruajtjes zakonisht nuk k\u00ebrkohet, prandaj konfigurimi m\u00eb i p\u00ebrshtatsh\u00ebm RAID p\u00ebr SSD me t\u00eb v\u00ebrtet\u00eb b\u00ebhet RAID 0. Kjo \u00ebsht\u00eb nj\u00eb m\u00ebnyr\u00eb e sigurt p\u00ebr t\u00eb marr\u00eb nj\u00eb rritje t\u00eb konsiderueshme t\u00eb performanc\u00ebs si nj\u00eb alternativ\u00eb ndaj p\u00ebrdorimit t\u00eb teknologjive t\u00eb tilla si disqet e ngurta t\u00eb bazuara n\u00eb Intel Optane. Nd\u00ebrsa do t\u00eb flasim p\u00ebr si do t\u00eb veprojn\u00eb zgjidhjet SSD n\u00eb llojet m\u00eb t\u00eb njohura t\u00eb RAID (\u201c1\u201d, \u201c5\u201d, \u201c10\u201d, \u201c50\u201d) \u2014 do t\u00eb flasim n\u00eb materialin ton\u00eb t\u00eb ardhsh\u00ebm.<\/p>\n

Ky artikull \u00ebsht\u00eb p\u00ebrgatitur me mb\u00ebshtetje nga koleg\u00ebt tan\u00eb nga Broadcom, t\u00eb cil\u00ebt ofrojn\u00eb kontrolluesit e tyre p\u00ebr inxhinier\u00ebt e Kingston p\u00ebr testim me disqet SATA\/SAS\/NVMe t\u00eb klas\u00ebs korporative. Fal\u00eb k\u00ebtij simbioze miq\u00ebsore, klient\u00ebt nuk kan\u00eb arsye t\u00eb dyshojn\u00eb n\u00eb besueshm\u00ebrin\u00eb dhe stabilitetin e funksionimit t\u00eb disqeve Kingston me kontrollues HBA dhe RAID t\u00eb prodhuar. Broadcom<\/a><\/noindex>.<\/p>\n

Informacione t\u00eb m\u00ebtejshme rreth produkteve Kingston mund t\u00eb gjenden n\u00eb faqen zyrtare<\/a><\/noindex> t\u00eb kompanis\u00eb.
\n
Burimi: habr.com<\/a><\/p>","protected":false,"gt_translate_keys":[{"key":"rendered","format":"html"}]},"excerpt":{"rendered":"

\u041f\u0440\u0438\u0432\u0435\u0442 \u0425\u0430\u0431\u0440! \u0412 \u044d\u0442\u043e\u043c \u043c\u0430\u0442\u0435\u0440\u0438\u0430\u043b\u0435 \u043c\u044b \u0440\u0430\u0441\u0441\u043a\u0430\u0436\u0435\u043c, \u0441\u0442\u043e\u0438\u0442 \u043b\u0438 \u043e\u0440\u0433\u0430\u043d\u0438\u0437\u043e\u0432\u044b\u0432\u0430\u0442\u044c RAID-\u043c\u0430\u0441\u0441\u0438\u0432\u044b \u043d\u0430 \u0431\u0430\u0437\u0435 \u0442\u0432\u0435\u0440\u0434\u043e\u0442\u0435\u043b\u044c\u043d\u044b\u0445 \u0440\u0435\u0448\u0435\u043d\u0438\u0439 SATA SSD \u0438 NVMe SSD, \u0438 \u0431\u0443\u0434\u0435\u0442 \u043b\u0438 \u043e\u0442 \u044d\u0442\u043e\u0433\u043e \u0441\u0435\u0440\u044c\u0435\u0437\u043d\u044b\u0439 \u043f\u0440\u043e\u0444\u0438\u0442? \u041c\u044b \u0440\u0435\u0448\u0438\u043b\u0438 \u0440\u0430\u0437\u043e\u0431\u0440\u0430\u0442\u044c\u0441\u044f \u0432 \u044d\u0442\u043e\u043c \u0432\u043e\u043f\u0440\u043e\u0441\u0435, \u0440\u0430\u0441\u0441\u043c\u043e\u0442\u0440\u0435\u0432 \u0432\u0438\u0434\u044b \u0438 \u0442\u0438\u043f\u044b \u043a\u043e\u043d\u0442\u0440\u043e\u043b\u043b\u0435\u0440\u043e\u0432, \u043a\u043e\u0442\u043e\u0440\u044b\u0435 \u043f\u043e\u0437\u0432\u043e\u043b\u044f\u044e\u0442 \u044d\u0442\u043e \u0441\u0434\u0435\u043b\u0430\u0442\u044c, \u0430 \u0442\u0430\u043a\u0436\u0435 \u0441\u0444\u0435\u0440\u044b \u043f\u0440\u0438\u043c\u0435\u043d\u0435\u043d\u0438\u044f \u0442\u0430\u043a\u0438\u0445 \u043a\u043e\u043d\u0444\u0438\u0433\u0443\u0440\u0430\u0446\u0438\u0439. \u0422\u0430\u043a \u0438\u043b\u0438 \u0438\u043d\u0430\u0447\u0435, \u043a\u0430\u0436\u0434\u044b\u0439 \u0438\u0437 \u043d\u0430\u0441 \u0445\u043e\u0442\u044c […]<\/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":[688],"tags":[],"class_list":["post-54586","post","type-post","status-publish","format-standard","hentry","category-administrirovanie"],"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\udd47A duhet t\u00eb krijoni nj\u00eb RAID array nga SSD dhe cil\u00ebt kontroler\u00eb jan\u00eb t\u00eb nevojsh\u00ebm p\u00ebr k\u00ebt\u00eb | ProHoster","description":"P\u00ebrsh\u00ebndetje Habr! N\u00eb k\u00ebt\u00eb material do t\u00eb flasim n\u00ebse ia vlen t\u00eb organizoni RAID arrays bazuar n\u00eb zgjidhje SSD SATA dhe NVMe, dhe a do t\u00eb ket\u00eb nj\u00eb profit t\u00eb r\u00ebnd\u00ebsish\u00ebm nga kjo? Ne vendos\u00ebm t\u00eb thellohemi n\u00eb k\u00ebt\u00eb \u00e7\u00ebshtje, duke shqyrtuar llojet dhe tipet e kontrolluesve q\u00eb e lejojn\u00eb k\u00ebt\u00eb, si dhe fushat e aplikimit t\u00eb k\u00ebtyre konfiguracioneve. N\u00eb nj\u00eb far\u00eb m\u00ebnyre, \u00e7do nj\u00ebri prej nesh e di se","canonical_url":"https:\/\/prohoster.info\/sq\/blog\/administrirovanie\/nuzhno-li-sozdavat-raid-massiv-iz-ssd-i-kakie-kontrollery-dlya-etogo-nuzhny","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\u041d\u0443\u0436\u043d\u043e \u043b\u0438 \u0441\u043e\u0437\u0434\u0430\u0432\u0430\u0442\u044c RAID-\u043c\u0430\u0441\u0441\u0438\u0432 \u0438\u0437 SSD \u0438 \u043a\u0430\u043a\u0438\u0435 \u043a\u043e\u043d\u0442\u0440\u043e\u043b\u043b\u0435\u0440\u044b \u0434\u043b\u044f \u044d\u0442\u043e\u0433\u043e \u043d\u0443\u0436\u043d\u044b | ProHoster","og:description":"\u041f\u0440\u0438\u0432\u0435\u0442 \u0425\u0430\u0431\u0440! \u0412 \u044d\u0442\u043e\u043c \u043c\u0430\u0442\u0435\u0440\u0438\u0430\u043b\u0435 \u043c\u044b \u0440\u0430\u0441\u0441\u043a\u0430\u0436\u0435\u043c, \u0441\u0442\u043e\u0438\u0442 \u043b\u0438 \u043e\u0440\u0433\u0430\u043d\u0438\u0437\u043e\u0432\u044b\u0432\u0430\u0442\u044c RAID-\u043c\u0430\u0441\u0441\u0438\u0432\u044b \u043d\u0430 \u0431\u0430\u0437\u0435 \u0442\u0432\u0435\u0440\u0434\u043e\u0442\u0435\u043b\u044c\u043d\u044b\u0445 \u0440\u0435\u0448\u0435\u043d\u0438\u0439 SATA SSD \u0438 NVMe SSD, \u0438 \u0431\u0443\u0434\u0435\u0442 \u043b\u0438 \u043e\u0442 \u044d\u0442\u043e\u0433\u043e \u0441\u0435\u0440\u044c\u0435\u0437\u043d\u044b\u0439 \u043f\u0440\u043e\u0444\u0438\u0442? 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