{"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 t\u00eb krijoni nj\u00eb grup RAID nga SSD-t\u00eb dhe cilat kontrollet i nevojiten 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 organizojm\u00eb RAID-Arrays me zgjidhje SSD SATA dhe NVMe SSD, dhe n\u00ebse nga kjo do t\u00eb ket\u00eb ndonj\u00eb p\u00ebrfitim t\u00eb r\u00ebnd\u00ebsish\u00ebm? Ne vendos\u00ebm t\u00eb shkrijm\u00eb k\u00ebt\u00eb \u00e7\u00ebshtje duke shqyrtuar llojet dhe tipet e kontrollor\u00ebve q\u00eb e b\u00ebjn\u00eb t\u00eb mundur k\u00ebt\u00eb, si dhe fushat e aplikimit t\u00eb k\u00ebtyre konfigurimeve.<\/p>\n

\"A
\n<\/a><\/noindex>
\nPa dyshim, secili prej nesh e ka d\u00ebgjuar ndonj\u00ebher\u00eb terma si \u201cRAID\u201d, \u201cRAID-array\u201d, \u201cRAID-controller\u201d, por ndoshta nuk iu kemi kushtuar r\u00ebnd\u00ebsi t\u00eb madhe, sepse p\u00ebr nj\u00eb p\u00ebrdorues t\u00eb zakonsh\u00ebm PC-t\u00eb ndoshta nuk kemi interes. Megjithat\u00eb, t\u00eb gjith\u00eb d\u00ebshirojn\u00eb shpejt\u00ebsi t\u00eb lart\u00eb nga ruajt\u00ebsit e brendsh\u00ebm dhe besueshm\u00ebri t\u00eb lart\u00eb n\u00eb pun\u00ebn e tyre. Pas gjith\u00e7kaje, pavar\u00ebsisht se sa e fuqishme \u00ebsht\u00eb pajisja e kompjuterit, shpejt\u00ebsia e pun\u00ebs s\u00eb ruajt\u00ebsit b\u00ebhet pika e ngusht\u00eb, kur flasim p\u00ebr performanc\u00ebn totale t\u00eb PC-s\u00eb dhe serverit. <\/p>\n

Ky ishte rasti deri n\u00eb momentin kur zgjidhjet tradicionale HDD u z\u00ebvend\u00ebsuan me SSD moderne NVMe me kapacitet krahasues prej 1 TB dhe m\u00eb shum\u00eb. Dhe n\u00ebse m\u00eb par\u00eb PC-t\u00eb shpesh kishin kombinimin e SATA SSD + disa HDD t\u00eb m\u00ebdhenj, sot ato po z\u00ebvend\u00ebsohen nga nj\u00eb zgjidhje tjet\u00ebr \u2014 NVMe SSD + disa SATA SSD t\u00eb m\u00ebdhenj. Kur flasim p\u00ebr server\u00ebt korporativ\u00eb dhe \u201ccloud\u201d-et, shum\u00eb tashm\u00eb jan\u00eb transferuar me sukses n\u00eb SATA SSD, thjesht sepse ato jan\u00eb m\u00eb t\u00eb shpejt\u00eb se \u201cgrat\u00eb\u201d e zakonshme dhe jan\u00eb n\u00eb gjendje t\u00eb p\u00ebrpunojn\u00eb m\u00eb shum\u00eb operacione hyrjeje\/daljeje nj\u00ebkoh\u00ebsisht.<\/p>\n

\"A
\n
\nMegjithat\u00eb, q\u00ebndrueshm\u00ebria e sistemit \u00ebsht\u00eb akoma n\u00eb nj\u00eb nivel mjaft t\u00eb ul\u00ebt: ne nuk mund t\u00eb parashikojm\u00eb si n\u00eb \u201cBetej\u00ebn e Ekstrasensor\u00ebve\u201d me sakt\u00ebsi madje as deri n\u00eb nj\u00eb jav\u00eb, kur nj\u00eb ruajt\u00ebs t\u00eb caktuar solid do t\u00eb ndaloj\u00eb s\u00eb ekzistuari. Dhe n\u00ebse HDD \u201cvdesin\u201d gradualisht, duke na lejuar t\u00eb kapim simptomat dhe t\u00eb marrim masa, at\u00ebher\u00eb SSD \u201cvdesin\u201d menj\u00ebher\u00eb dhe pa paralajm\u00ebrim. Tani \u00ebsht\u00eb koha p\u00ebr t'u thelluar, pse na nevojitet gjith \u044d\u0442\u043e? A ia vlen t\u00eb organizojm\u00eb RAID-Arrays me zgjidhje SSD SATA dhe NVMe SSD, dhe do t\u00eb ket\u00eb ndonj\u00eb p\u00ebrfitim t\u00eb r\u00ebnd\u00ebsish\u00ebm? <\/p>\n

Pse nevojitet RAID-array?<\/h2>\n

\nFjala \"masiv\" n\u00ebnkupton se p\u00ebr t\u00eb krijuar at\u00eb, p\u00ebrdoren disa ruajt\u00ebs (HDD dhe SSD), t\u00eb cilat bashkohen p\u00ebrmes nj\u00eb kontrolluesi RAID dhe njihen nga OS si nj\u00eb nj\u00ebsi e vetme p\u00ebr ruajtjen e t\u00eb dh\u00ebnave. Q\u00ebllimi kryesor q\u00eb lejojn\u00eb t\u00eb zgjidhin masiv\u00ebt RAID \u00ebsht\u00eb minimizimi i koh\u00ebs s\u00eb qasjes n\u00eb t\u00eb dh\u00ebna, p\u00ebrmir\u00ebsimi i shpejt\u00ebsis\u00eb s\u00eb leximit\/shkrimit dhe besueshm\u00ebris\u00eb, e cila arrihet fal\u00eb mund\u00ebsis\u00eb p\u00ebr rikuperim t\u00eb shpejt\u00eb n\u00eb rast d\u00ebshtimi. P\u00ebr ta th\u00ebn\u00eb hapur, p\u00ebr backup-in e sht\u00ebpis\u00eb, p\u00ebrdorimi i RAID-it nuk \u00ebsht\u00eb domosdoshm\u00ebrisht i nevojsh\u00ebm. Por, n\u00ebse keni nj\u00eb server sht\u00ebpie, t\u00eb cilit i nevojitet akses i vazhduesh\u00ebm 24\/7 \u2014 kjo \u00ebsht\u00eb nj\u00eb tjet\u00ebr \u00e7\u00ebshtje.<\/p>\n

Ekziston mbi nj\u00eb dhjet\u00ebra nivele masivash RAID, secili prej t\u00eb cil\u00ebve dallon nga numri i ruajt\u00ebsve t\u00eb p\u00ebrdorur dhe ka p\u00ebrpar\u00ebsit\u00eb dhe disavantazhet e tij: p\u00ebr shembull, RAID 0 lejon t\u00eb marrim performanc\u00eb t\u00eb lart\u00eb pa besueshm\u00ebri, RAID 1 mund\u00ebson pasqyrimin automatik t\u00eb t\u00eb dh\u00ebnave pa rritje t\u00eb shpejt\u00ebsis\u00eb, nd\u00ebrsa RAID 10 kombinon mund\u00ebsit\u00eb e p\u00ebrmendura m\u00eb par\u00eb. RAID 0 dhe 1 jan\u00eb m\u00eb t\u00eb thjeshtat (p\u00ebr shkak se nuk k\u00ebrkojn\u00eb llogaritje programore) dhe, si pasoj\u00eb, \u2014 m\u00eb t\u00eb popullarizuarit. N\u00eb fund, zgjedhja p\u00ebr nj\u00eb nivel t\u00eb caktuar RAID varet nga detyrat q\u00eb i ngarkohen masivit t\u00eb disqeve dhe mund\u00ebsit\u00eb e kontrolluesit RAID.<\/p>\n

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

\nBaza e \u00e7do biznesi modern jan\u00eb sasi t\u00eb m\u00ebdha t\u00eb dh\u00ebnash, t\u00eb cilat duhet t\u00eb ruhen n\u00eb m\u00ebnyr\u00eb t\u00eb besueshme n\u00eb serverat e kompanive. P\u00ebr m\u00eb tep\u00ebr, si\u00e7 e p\u00ebrmend\u00ebm m\u00eb par\u00eb, duhet t\u00eb sigurohet akses i vazhduesh\u00ebm 24\/7. \u00cbsht\u00eb e qart\u00eb se, p\u00ebrve\u00e7 'harduerit', pjesa software \u00ebsht\u00eb gjithashtu e r\u00ebnd\u00ebsishme, por n\u00eb k\u00ebt\u00eb rast po flasim p\u00ebr pajisjet q\u00eb sigurojn\u00eb ruajtjen dhe p\u00ebrpunimin e informacionit. Asnj\u00eb softuer nuk do ta shp\u00ebtoj\u00eb kompanin\u00eb nga falimentimi, n\u00ebse pajisjet \"harduerike\" nuk p\u00ebrputhen me detyrat e ngarkuara.<\/p>\n

\"A
\n
\nP\u00ebr k\u00ebto detyra, \u00e7do prodhues i \"harduerit\" ofron at\u00eb q\u00eb quhet pajisje korporative. N\u00eb Kingston, kjo jan\u00eb zgjidhje t\u00eb fuqishme t\u00eb ngurt\u00eb n\u00eb form\u00ebn e modeleve SATA Kingston 450R (DC450R)<\/a><\/noindex> dhe seria DC500<\/a><\/noindex>, si modelet NVMe DC1000M U.2 NVMe, DCU1000 U.2 NVMe dhe DCP-1000 PCI-e, t\u00eb gjitha t\u00eb dizajnuara p\u00ebr p\u00ebrdorim n\u00eb Qendrat e T\u00eb Dh\u00ebnave dhe superkompjuter\u00ebt. Grumbujt e k\u00ebtyre disqeve p\u00ebrdoren zakonisht s\u00eb bashku me kontrollet harduerike.<\/p>\n

\"A
\n
\nP\u00ebr tregun e konsumator\u00ebve (dometh\u00ebn\u00eb p\u00ebr PC-t\u00eb e sht\u00ebpis\u00eb dhe server\u00ebt NAS), model jan\u00eb n\u00eb dispozicion si Kingston KC2000<\/a><\/noindex> NVMe PCIe, por n\u00eb k\u00ebt\u00eb rast nuk \u00ebsht\u00eb e nevojshme t\u00eb blini nj\u00eb kontrollor harduerik. Mjafton t\u00eb p\u00ebrdorni at\u00eb t\u00eb integruar n\u00eb pllakat\u00ebn e n\u00ebn\u00ebs s\u00eb PC-s\u00eb ose serverit NAS, n\u00ebse natyrisht nuk planifikoni t\u00eb nd\u00ebrroni nj\u00eb server sht\u00ebpie p\u00ebr detyra t\u00eb pazakonta (si\u00e7 \u00ebsht\u00eb krijimi i nj\u00eb hostingu t\u00eb vog\u00ebl sht\u00ebpiak p\u00ebr miqt\u00eb, p\u00ebr shembull). P\u00ebr m\u00eb tep\u00ebr, grumbujt RAID t\u00eb sht\u00ebpis\u00eb, zakonisht, nuk parashikojn\u00eb nj\u00eb num\u00ebr t\u00eb madh disqesh, duke u kufizuar n\u00eb dy, kat\u00ebr dhe tet\u00eb pajisje (zakonisht SATA).<\/p>\n

Llojet dhe tipe t\u00eb kontrollor\u00ebve RAID<\/h2>\n

\nEkzistojn\u00eb tre lloje kontrollesh RAID, t\u00eb bazuara n\u00eb parimet e realizimit t\u00eb grumbujve RAID: <\/p>\n

1. Programore, ku menaxhimi i grumbullit i bie CPU-s\u00eb dhe DRAM (dometh\u00ebn\u00eb ekzekutimi i kodit programor ndodh n\u00eb procesor).<\/p>\n

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

3. Harduerike (modulare), q\u00eb jan\u00eb karta t\u00eb shpejta zgjatimi p\u00ebr portet PCI\/PCIe t\u00eb pllakatave sistemike. <\/p>\n

Cila \u00ebsht\u00eb dallimi kryesor midis tyre? Kontrollor\u00ebt RAID programor\u00eb jan\u00eb m\u00eb t\u00eb varf\u00ebr n\u00eb performanc\u00eb dhe q\u00ebndrushm\u00ebri se ata t\u00eb integruar dhe harduerik\u00eb, por nuk k\u00ebrkojn\u00eb asnj\u00eb pajisje speciale p\u00ebr t\u00eb funksionuar. Megjithat\u00eb, \u00ebsht\u00eb e r\u00ebnd\u00ebsishme t\u00eb siguroheni q\u00eb procesori i sistemit prit\u00ebs \u00ebsht\u00eb mjaft i fuqish\u00ebm p\u00ebr t\u00eb drejtuar softuerin RAID, pa ndikuar negativisht n\u00eb performanc\u00ebn e aplikacioneve q\u00eb gjithashtu funksionojn\u00eb n\u00eb prit\u00ebs. Kontrollor\u00ebt e integruar, zakonisht, p\u00ebrfshijn\u00eb cache t\u00eb vetin dhe p\u00ebrdorin disa burime t\u00eb CPU. <\/p>\n

K\u00ebto pajisje hardware kan\u00eb memorie t\u00eb integruar dhe nj\u00eb procesor t\u00eb brendsh\u00ebm p\u00ebr ekzekutimin e algoritmeve softuerike. Ata zakonisht lejojn\u00eb realizimin e t\u00eb gjitha llojeve t\u00eb niveleve RAID dhe mb\u00ebshtesin disa lloje pajisjesh t\u00eb magazinimit nj\u00ebherazi. P\u00ebr shembull, p\u00ebr kontrollet moderne harduerike t\u00eb kompanis\u00eb Broadcom, \u00ebsht\u00eb e mundur t\u00eb lidhen nj\u00ebkoh\u00ebsisht pajisje SATA, SAS dhe NVMe, duke shmangur nevoj\u00ebn p\u00ebr t\u00eb nd\u00ebrruar kontrollin gjat\u00eb azhurnimeve t\u00eb server\u00ebve: n\u00eb ve\u00e7anti, kur kaloni nga SATA SSD n\u00eb NVMe SSD, nuk do t\u00eb jet\u00eb e nevojshme t\u00eb nd\u00ebrroni kontrolluesit.<\/p>\n

\"A
\n
\nN\u00eb fakt, n\u00eb k\u00ebt\u00eb pik\u00eb ne arrit\u00ebm te tipologjia e vet\u00eb kontrollor\u00ebve. N\u00ebse ka kontrollor\u00eb me tre modu, 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. N\u00eb var\u00ebsi t\u00eb funksioneve dhe mund\u00ebsive, kontrollet RAID mund t\u00eb ndahet n\u00eb disa lloje:<\/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 nivele RAID \"0\", \"1\" ose \"0+1\". Kjo realizohet n\u00eb m\u00ebnyr\u00eb programore n\u00eb nivelin e firmware-it. Megjithat\u00eb, k\u00ebto pajisje shum\u00eb mund t\u00eb mos rekomandohen p\u00ebr p\u00ebrdorim n\u00eb sektorin korporativ, pasi ato nuk kan\u00eb memorie t\u00eb p\u00ebrkohshme dhe nuk mb\u00ebshtesin nivelet RAID \"5\", \"3\" etj. Por ato jan\u00eb t\u00eb p\u00ebrshtatshme p\u00ebr nj\u00eb server sht\u00ebpiak n\u00eb nivel fillestar.<\/p>\n

2. Kontrollor\u00eb q\u00eb punojn\u00eb n\u00eb \u00e7ift me kontrollor\u00eb t\u00eb tjer\u00eb RAID<\/b>
\nKy lloj kontrollori mund t\u00eb funksionoj\u00eb n\u00eb \u00e7ift me kontrollor\u00ebt e integruar t\u00eb pllakave n\u00ebn\u00eb. Kjo realizohet sipas parimit t\u00eb m\u00ebposht\u00ebm: kontrollori i RAID-it diskret merr p\u00ebrsip\u00ebr zgjidhjen e detyrave \"logjike\", nd\u00ebrsa ai i integruar merret me funksionet e transferimit t\u00eb t\u00eb dh\u00ebnave midis pajisjeve t\u00eb magazinimit. Por ka nj\u00eb nuanc\u00eb: puna paralele e k\u00ebtyre kontrollor\u00ebve \u00ebsht\u00eb e mundur vet\u00ebm n\u00eb pllaka n\u00ebn\u00eb t\u00eb pajtueshme, q\u00eb do t\u00eb thot\u00eb se fusha e tyre e aplikimit ngushtohet ndjesh\u00ebm.<\/p>\n

3. Kontrollor\u00ebt RAID t\u00eb pavarur<\/b>
\nK\u00ebto zgjidhje diskrete p\u00ebrmbajn\u00eb t\u00eb gjith\u00eb \u00e7ipat e nevojsh\u00ebm p\u00ebr t\u00eb punuar me server\u00ebt e klas\u00ebs korporative, duke pasur nj\u00eb BIOS t\u00eb vet, memorie t\u00eb p\u00ebrkohshme dhe nj\u00eb procesor p\u00ebr korrigjimin e shpejt\u00eb t\u00eb gabimeve dhe llogaritjen e kontrolleve t\u00eb shifrave. P\u00ebr m\u00eb tep\u00ebr, ata p\u00ebrmbushin standardet e larta t\u00eb besueshm\u00ebris\u00eb n\u00eb procesin e prodhimit dhe kan\u00eb module t\u00eb kujdessh\u00ebm t\u00eb memories.<\/p>\n

4. Kontrollor\u00eb RAID t\u00eb jasht\u00ebm<\/b>
\nNuk \u00ebsht\u00eb e v\u00ebshtir\u00eb t\u00eb kuptohet se t\u00eb gjith\u00eb kontrollet e p\u00ebrmendura m\u00eb lart jan\u00eb t\u00eb brendshme dhe marrin energji p\u00ebrmes lidh\u00ebsit PCIe t\u00eb pllak\u00ebs am\u00eb. \u00c7far\u00eb do t\u00eb thot\u00eb kjo? Do t\u00eb thot\u00eb se d\u00ebshtimi i pllak\u00ebs am\u00eb mund t\u00eb sjell\u00eb gabime n\u00eb funksionimin e RAID-it dhe humbje t\u00eb t\u00eb dh\u00ebnave. Kontrolluesit e jasht\u00ebm, nga ana tjet\u00ebr, e shmangin k\u00ebt\u00eb keqkuptim, pasi vendosen n\u00eb nj\u00eb kas\u00eb t\u00eb ve\u00e7ant\u00eb me nj\u00eb bllok t\u00eb pavarur energjie. N\u00eb aspektin e besueshm\u00ebris\u00eb, k\u00ebta kontrolues 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 kontrolues RAID harduerike n\u00eb k\u00ebt\u00eb koh\u00eb.<\/p>\n

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

\nDetyra kryesore e kontrolluesve HBA dhe RAID me tri moda (ose kontroluesit me funksionin Tri-Mode) \u00ebsht\u00eb krijimi i RAID harduerik n\u00eb baz\u00eb t\u00eb NVMe. Kompania Broadcom p\u00ebr k\u00ebt\u00eb ka kontroluesit e seris\u00eb 9400: p\u00ebr shembull, MegaRAID 9460-16i<\/a><\/noindex>. Ai p\u00ebrket tipit t\u00eb pavarur t\u00eb kontroluesve RAID, ka kat\u00ebr lidhje SFF-8643 dhe, fal\u00eb mb\u00ebshtetjes Tri-Mode, lejon lidhjen e disqeve SATA\/SAS dhe NVMe nj\u00ebkoh\u00ebsisht. Gjithashtu, \u00ebsht\u00eb nj\u00eb nga kontroluesit m\u00eb efikas n\u00eb treg (consumohet vet\u00ebm 17 Watt energji, me m\u00eb pak se 1,1 Watt n\u00eb secil\u00ebn nga 16 portet).<\/p>\n

\"A
\n
\nInterfacing p\u00ebrmban PCI Express x8 versioni 3.1, i cili lejon realizimin e nj\u00eb kapaciteti deri n\u00eb 64 Gbit\/s (n\u00eb vitin 2020 pritet shfaqja e kontroluesve p\u00ebr PCI Express 4.0). N\u00eb themel t\u00eb kontroluesit 16-port \u00ebsht\u00eb nj\u00eb \u00e7ip dy-b\u00ebrthamor SAS3516<\/a><\/noindex> dhe 72-bit DDR4-2133 SDRAM (4 GB), si dhe implementohet mund\u00ebsia e lidhjes deri n\u00eb 240 disqe SATA\/SAS, ose deri n\u00eb 24 pajisje NVMe. N\u00eb lidhje me organizimin e RAID-it, mb\u00ebshteten nivelet \u201c0\u201d, \u201c1\u201d, \u201c5\u201d dhe \u201c6\u201d, si dhe \u201c10\u201d, \u201c50\u201d dhe \u201c60\u201d. Me k\u00ebt\u00eb rast, memoria MegaRAID 9460-16i<\/a><\/noindex> e kontrolluesve t\u00eb tjer\u00eb n\u00eb serin\u00eb 9400 \u00ebsht\u00eb e mbrojtur nga nd\u00ebrprerjet e tensionit me nj\u00eb modulum shtes\u00eb CacheVault CVPM05.<\/p>\n

The three-mode technology is based on the SerDes data conversion function: transforming the serial data representation in SAS\/SATA interfaces into a parallel form in PCIe NVMe and vice versa. This means that the controller synchronizes speeds and protocols to seamlessly work with any of the three types of storage devices. This provides a continuous way to scale data center infrastructure: users can utilize NVMe without significant changes to other system configurations. <\/p>\n

\"A
\n
\nHowever, when planning configurations with NVMe drives, it is important to consider that NVMe solutions use 4 PCIe lanes for connectivity, which means each drive utilizes all the lanes of the SFF-8643 ports. Consequently, only four NVMe drives can be directly connected to the MegaRAID 9460-16i controller. Alternatively, one could limit it to two NVMe solutions while simultaneously connecting eight SAS drives (see the connection diagram below).<\/p>\n

\"A
\n
\nThe diagram shows the use of port '0' (C0 \/ Connector 0) and port '1' for NVMe connections, as well as ports '2' and '3' for SAS connections. This arrangement can be adjusted in reverse, but each x4 NVMe drive must be connected using adjacent lanes. The controller modes are set through the StorCLI configuration utilities or the Human Interface Infrastructure (HII), which operates in a UEFI environment. <\/p>\n

\"A
\n
\nThe default mode is the 'PD64' profile (supporting only SAS \/ SATA). As mentioned above, there are a total of three profiles: 'SAS\/SATA only mode' (PD240 \/ PD64 \/ PD 16), 'NVMe only mode' (PCIe4), and mixed mode, where all types of drives can operate: 'PD64-PCIe4' (supporting 64 physical and virtual disks with 4 NVMe drives). In mixed mode, the set profile value should be as follows \u2013 'ProfileID=13'. Interestingly, the chosen profile is retained as the primary one and is not reset even when reverting to factory settings via the Set Factory Defaults command. It can only be changed manually.<\/p>\n

Is it worth creating a RAID array on SSDs?<\/h2>\n

\nK\u00ebshtu, ne tashm\u00eb e kuptuam se RAID array \u00ebsht\u00eb \u00e7el\u00ebsi p\u00ebr performanc\u00ebn e lart\u00eb. Por a vlen t\u00eb krijosh nj\u00eb RAID nga disqe t\u00eb gjendjes solide p\u00ebr p\u00ebrdorim n\u00eb sht\u00ebpi dhe n\u00eb kompani? Shum\u00eb skeptik\u00eb thon\u00eb se rritja n\u00eb shpejt\u00ebsi nuk \u00ebsht\u00eb aq e dukshme sa p\u00ebr t\u00eb investuar n\u00eb disqe NVMe. Por a \u00ebsht\u00eb k\u00ebshtu n\u00eb t\u00eb v\u00ebrtet\u00eb? Ndonj\u00ebher\u00eb, ndoshta jo. Kufizimi m\u00eb i madh p\u00ebr p\u00ebrdorimin e SSD-ve n\u00eb RAID (si n\u00eb kushtet e sht\u00ebpis\u00eb ashtu edhe n\u00eb nivelin korporativ) mund t\u00eb jet\u00eb \u00e7mimi. Si\u00e7 e di \u00e7do njeri, kostoja p\u00ebr gigabajt hap\u00ebsir\u00eb te HDD \u00ebsht\u00eb ndjesh\u00ebm m\u00eb e lir\u00eb. <\/p>\n

Lidhja e disa<\/p>\n

\"A
\n
\nOrganizimi i nj\u00eb RAID 0 t\u00eb zakonsh\u00ebm me dy SSD, ku p\u00ebrdoret metoda e ndarjes s\u00eb t\u00eb dh\u00ebnave n\u00eb blloqe fikse dhe shk\u00ebmbimi i tyre midis depove t\u00eb vet\u00eb SSD-ve, do t\u00eb \u00e7oj\u00eb n\u00eb dyfishimin e performanc\u00ebs (n\u00ebse krahasohet me shpejt\u00ebsit\u00eb q\u00eb ofron nj\u00eb SSD). N\u00eb k\u00ebt\u00eb rast, nj\u00eb array RAID 0 me kat\u00ebr disqe SSD do t\u00eb ishte kat\u00ebr her\u00eb m\u00eb i shpejt\u00eb se SSD m\u00eb i ngadalsh\u00ebm n\u00eb array (n\u00eb var\u00ebsi t\u00eb kufizimit t\u00eb kapasitetit n\u00eb nivelin e kontrollit t\u00eb RAID-it SSD). <\/p>\n

Duke u bazuar n\u00eb aritmetik\u00ebn e thjesht\u00eb, SATA SSD \u00ebsht\u00eb rreth 3 her\u00eb m\u00eb i shpejt\u00eb se HDD tradicional SATA. Zgjidhjet NVMe jan\u00eb edhe m\u00eb efektive - deri n\u00eb 10 her\u00eb e m\u00eb shum\u00eb. Me kusht q\u00eb dy disqet e ngurt\u00eb n\u00eb RAID-in e nivelit zero t\u00eb tregojn\u00eb dyfishimin e performanc\u00ebs, duke e rritur at\u00eb me 50%, dy SATA SSD do t\u00eb jen\u00eb 6 her\u00eb m\u00eb t\u00eb shpejt\u00eb, nd\u00ebrsa dy NVMe SSD do t\u00eb jen\u00eb 20 her\u00eb m\u00eb t\u00eb shpejt\u00eb. N\u00eb ve\u00e7anti, nj\u00eb kuti Kingston KC2000 NVMe PCIe mund t\u00eb arrij\u00eb shpejt\u00ebsi t\u00eb leximit dhe shkruarjes deri n\u00eb 3200 MB\/s, e cila n\u00eb formatin RAID 0 merr nj\u00eb shpejt\u00ebsi mbres\u00ebl\u00ebn\u00ebse prej 6 GB\/s. Gjithashtu shpejt\u00ebsia e leximit\/shkruarjes p\u00ebr blloqe t\u00eb rast\u00ebsishme me madh\u00ebsi 4 KB kalon nga 350,000 IOPS n\u00eb 700,000 IOPS. Por... n\u00eb t\u00eb nj\u00ebjt\u00ebn koh\u00eb, RAID-i<\/p>\n

N\u00eb kushtet e sht\u00ebpis\u00eb, mund t\u00eb thuhet se tep\u00ebrtia e ruajtjes zakonisht nuk k\u00ebrkohet, prandaj konfigurimi m\u00eb i p\u00ebrshtatsh\u00ebm RAID p\u00ebr SSD \u00ebsht\u00eb me t\u00eb v\u00ebrtet\u00eb RAID 0. Ky \u00ebsht\u00eb nj\u00eb m\u00ebnyr\u00eb e besueshme p\u00ebr t\u00eb arritur 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 dysk\u00ebt solide bazuar n\u00eb Intel Optane. Si do t\u00eb performojn\u00eb zgjidhjet SSD n\u00eb tipet m\u00eb t\u00eb njohura RAID (\u201c1\u201d, \u201c5\u201d, \u201c10\u201d, \u201c50\u201d) - 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 n\u00eb Broadcom, t\u00eb cil\u00ebt i ofrojn\u00eb kontrollet e tyre inxhinier\u00ebve t\u00eb Kingston p\u00ebr testim me dysk\u00ebt 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 p\u00ebr besueshm\u00ebrin\u00eb dhe stabilitetin e pun\u00ebs s\u00eb dysk\u00ebve Kingston me kontrollet HBA dhe RAID t\u00eb prodhimit. Broadcom<\/a><\/noindex>.<\/p>\n

Informacione shtes\u00eb 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 masiv RAID nga SSD dhe cilat kontrollet nevojiten p\u00ebr k\u00ebt\u00eb | ProHoster","description":"P\u00ebrsh\u00ebndetje Habr! 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