\nProcesori Kunpeng p\u00ebrb\u00ebhet nga nj\u00eb sistem n\u00eb \u00e7ip (SoC), ku p\u00ebrve\u00e7 bllokut t\u00eb llogaritjes ka module harduerike q\u00eb p\u00ebrshpejtojn\u00eb procese t\u00eb ndryshme, p\u00ebr shembull llogaritjen e checksum-it ose ekzekutimin e \"kodit fshir\u00ebs\" (erasure coding). Ai gjithashtu ka mb\u00ebshtetje harduerike p\u00ebr SAS, Ethernet, DDR4 (nga gjasht\u00eb n\u00eb tet\u00eb kanale) etj. T\u00eb gjitha k\u00ebto lejojn\u00eb Huawei t\u00eb krijoj\u00eb kontroler\u00eb t\u00eb CHT-s\u00eb q\u00eb nuk i japin pas p\u00ebrformanc\u00ebs zgjidhjeve klasike t\u00eb Intel. <\/p>\n
P\u00ebr m\u00eb tep\u00ebr, zgjidhjet tona t\u00eb bazuara n\u00eb arkitektur\u00ebn ARM i japin Huawei mund\u00ebsin\u00eb t\u00eb krijoj\u00eb zgjidhje serveri t\u00eb plota dhe t'i ofroj\u00eb ato klient\u00ebve t\u00eb saj si nj\u00eb alternativ\u00eb ndaj x86.<\/p>\n
\nArkitektura e brendshme e CHT-s\u00eb Dorado V6 t\u00eb serive m\u00eb t\u00eb larta p\u00ebrfaq\u00ebsohet nga kat\u00ebr sub-doma kryesore (fabrika). <\/p>\n
Fabrika e par\u00eb \u00ebsht\u00eb frontend i p\u00ebrbashk\u00ebt (nd\u00ebrfaqet rrjet\u00eb q\u00eb jan\u00eb p\u00ebrgjegj\u00ebse p\u00ebr lidhjen me fabrik\u00ebn SAN ose hostet). <\/p>\n
Fabrika e dyt\u00eb \u00ebsht\u00eb nj\u00eb grumbull kontrolluesish, secili prej t\u00eb cil\u00ebve mund t\u00eb \"efektoj\u00eb\" n\u00eb \u00e7do kart\u00eb rrjeti t\u00eb frontend-it, si dhe n\u00eb \"motorin\" (engine) fqinje, q\u00eb p\u00ebrfaq\u00ebson nj\u00eb kuti me kat\u00ebr kontrollues, si dhe blloqet e energjis\u00eb dhe ftohjes t\u00eb p\u00ebrbashk\u00ebta p\u00ebr ta. Aktualisht, modelet Dorado V6 t\u00eb klasit hi-end mund t\u00eb kompletohen me dy t\u00eb till\u00eb \"motor\u00eb\" (kat\u00ebr kontrollues p\u00ebrkat\u00ebsisht).<\/p>\n
Fabrika e tret\u00eb \u00ebsht\u00eb p\u00ebrgjegj\u00ebse p\u00ebr backend-in dhe p\u00ebrb\u00ebhet nga kartat rrjet\u00eb RDMA 100G.<\/p>\n
M\u00eb n\u00eb fund, fabrika e kat\u00ebrt \"n\u00eb harduer\" paraqitet me raftet inteligjente q\u00eb lidhin disk\u00ebt.<\/p>\n
Kjo struktur\u00eb simetrike e ngjashme zbulon t\u00eb gjith\u00eb potencialin e teknologjis\u00eb NVMe dhe garanton performanc\u00eb t\u00eb lart\u00eb dhe besueshm\u00ebri. Procesi i hyrjes dhe daljes maksimizohet n\u00ebp\u00ebrmjet procesor\u00ebve dhe peak\u00ebve, duke siguruar lexim dhe shkarkim t\u00eb shumt\u00eb n\u00eb shum\u00eb kanale.<\/p>\n
\nPerformanca maksimale e zgjidhjeve Dorado V6 \u00ebsht\u00eb rreth tre her\u00eb m\u00eb e lart\u00eb se sa sistemet e brezit t\u00eb kaluar (t\u00eb nj\u00ebjtit klas\u00eb) dhe mund t\u00eb arrij\u00eb deri n\u00eb 20 milion IOPS. <\/p>\n
Kjo ndodh sepse n\u00eb brezin e kaluar t\u00eb pajisjeve mb\u00ebshtetja NVMe ishte e disponueshme vet\u00ebm p\u00ebr raftet me ruajt\u00ebs. Tani ajo \u00ebsht\u00eb e pranishme n\u00eb t\u00eb gjitha fazat, nga hosti deri te SSD. Rrjeti i backend gjithashtu ka p\u00ebrjetuar ndryshime: SAS\/PCIe jan\u00eb z\u00ebvend\u00ebsuar nga RoCEv2 me kapacitet 100 Gbit\/s. <\/p>\n
Forma fizike e SSD ka ndryshuar gjithashtu. N\u00ebse m\u00eb par\u00eb nj\u00eb raft 2U kishte 25 ruajt\u00ebs, tani ajo ka arritur deri n\u00eb 36 disqet me format fizik palm-sized. P\u00ebr m\u00eb tep\u00ebr, raftet jan\u00eb b\u00ebr\u00eb m\u00eb inteligjente. N\u00eb secilin prej tyre tani ekziston nj\u00eb sistem tolerant ndaj defekteve me dy kontroler\u00eb t\u00eb bazuar n\u00eb \u00e7ipet ARM, t\u00eb ngjashme me ato q\u00eb jan\u00eb t\u00eb instaluara n\u00eb kontroller\u00ebt qendror\u00eb. <\/p>\n
Kompresimi dhe deduplication n\u00eb sistemi i ruajtjes s\u00eb brezit t\u00eb kaluar \u00ebsht\u00eb b\u00ebr\u00eb me blloqe me gjat\u00ebsi fikse. Tani \u00ebsht\u00eb shtuar nj\u00eb mod n\u00eb pun\u00eb me blloqe me gjat\u00ebsi t\u00eb variueshme, t\u00eb cilin aktualisht duhet ta aktivizoni manualisht. Versionet e ardhshme ndoshta do ta ndryshojn\u00eb k\u00ebt\u00eb situat\u00eb.<\/p>\n
Po ashtu leht\u00eb p\u00ebr toleranc\u00ebn ndaj defekteve. Dorado V3 mbante funksionimin n\u00ebse nj\u00eb kontroller nga dy merrte defekt. Dorado V6 do t\u00eb siguroj\u00eb akses n\u00eb t\u00eb dh\u00ebna edhe n\u00ebse fillimisht d\u00ebshtojn\u00eb shtat\u00eb kontroler\u00eb nga tet\u00eb ose ndodhen nj\u00ebkoh\u00ebsisht kat\u00ebr nga e nj\u00ebjta 'motor'.<\/p>\n
\nS\u00eb fundmi, mes porosit\u00ebsve t\u00eb Huawei u realizua nj\u00eb anket\u00eb mbi at\u00eb se sa koh\u00eb t\u00eb papun\u00eb t\u00eb elementeve t\u00eb ve\u00e7anta t\u00eb infrastruktur\u00ebs IT nj\u00eb kompani e konsideron t\u00eb pranueshme. N\u00eb mas\u00ebn e madhe, respondent\u00ebt u treguan tolerant\u00eb ndaj nj\u00eb situate hipotetike n\u00eb t\u00eb cil\u00ebn nj\u00eb aplikacion nuk blen p\u00ebrgjigje p\u00ebr disa qindra sekonda. P\u00ebr sistemin operativ ose host-adapterin, koha kritike e papun\u00ebsis\u00eb u p\u00ebrkufizua n\u00eb disa dhjet\u00ebra sekonda (n\u00eb thelb, koha e ribilancimit). Por k\u00ebrkesat jan\u00eb akoma m\u00eb t\u00eb larta p\u00ebr rrjetin: kapaciteti i tij nuk duhet t\u00eb bjer\u00eb p\u00ebr m\u00eb shum\u00eb se 10-20 sekonda. Si\u00e7 \u00ebsht\u00eb e leht\u00eb t\u00eb imagjinohet, systemet e ruajtjes konsideroheshin m\u00eb kritike. Nga k\u00ebndv\u00ebshtrimi i p\u00ebrfaq\u00ebsuesve t\u00eb biznesit, koha e papun\u00ebsis\u00eb s\u00eb sistemit t\u00eb ruajtjes nuk duhet t\u00eb kaloj\u00eb\u2026 disa sekonda n\u00eb vit!<\/p>\n
Me fjal\u00eb t\u00eb tjera, n\u00ebse aplikacioni i klientit t\u00eb bank\u00ebs nuk p\u00ebrgjigjet p\u00ebr 100 sekonda, ndoshta kjo nuk do t\u00eb ket\u00eb pasoja katastrofike. Por n\u00ebse sistemet e ruajtjes nuk funksionojn\u00eb p\u00ebr t\u00eb nj\u00ebjt\u00ebn periudh\u00eb, mund t\u00eb hasni n\u00eb ndalimin e biznesit dhe humbje t\u00eb konsiderueshme financiare.<\/p>\n
N\u00eb diagramin e m\u00ebsip\u00ebrm \u00ebsht\u00eb paraqitur kostoja e nj\u00eb ore pune p\u00ebr dhjet\u00eb bankat m\u00eb t\u00eb m\u00ebdha (t\u00eb dh\u00ebnat nga Forbes n\u00eb vitin 2017). Pajtohuni, n\u00ebse kompania juaj \u00ebsht\u00eb e ngjashme me bankat kineze n\u00eb madh\u00ebsi, do t\u00eb jet\u00eb e leht\u00eb t\u00eb justifikoni nevoj\u00ebn p\u00ebr t\u00eb akorduar disa milion dollar\u00eb p\u00ebr sistemin e ruajtjes. Nj\u00eb e v\u00ebrtet\u00eb n\u00eb t\u00eb kund\u00ebrt \u00ebsht\u00eb gjithashtu e sakt\u00eb: n\u00ebse biznesi nuk p\u00ebson humbje t\u00eb konsiderueshme p\u00ebr shkak t\u00eb ndalimeve, at\u00ebher\u00eb ndoshta nuk do t\u00eb investoj\u00eb n\u00eb sistemet e ruajtjes hi-end. N\u00eb \u00e7do rast, \u00ebsht\u00eb e r\u00ebnd\u00ebsishme t\u00eb keni nj\u00eb paraqitje se sa do t\u00eb jet\u00eb ndihma q\u00eb ju pret derisa administratori t\u00eb zgjidh\u00eb \u00e7\u00ebshtjen e sistemit t\u00eb ruajtjes.<\/p><\/blockquote>\n
Sekonda p\u00ebr kalimin n\u00eb situat\u00eb emergjente<\/h2>\n \nN\u00eb Zgjidhjen A n\u00eb ilustrimin m\u00eb sip\u00ebr mund t\u00eb shihni sistemin ton\u00eb t\u00eb brezit t\u00eb kaluar Dorado V3. Kat\u00ebr kontroler\u00ebt e saj punojn\u00eb n\u00eb \u00e7ift, dhe kopjet e memorie jan\u00eb ruajtur vet\u00ebm n\u00eb dy kontroler\u00eb. Kontroler\u00ebt brenda \u00e7iftit mund t\u00eb respektivojn\u00eb ngarkes\u00ebn. N\u00eb t\u00eb nj\u00ebjt\u00ebn koh\u00eb, si\u00e7 e shihni, nuk ka 'fabrika' t\u00eb front-endit dhe backendit, k\u00ebshtu q\u00eb \u00e7do raft me ruajt\u00ebs \u00ebsht\u00eb lidhur me nj\u00eb \u00e7ift konkret t\u00eb kontroler\u00ebve.<\/p>\n
N\u00eb diagramin e Zgjidhjes B tregohet nj\u00eb zgjidhje q\u00eb aktualisht \u00ebsht\u00eb n\u00eb treg nga nj\u00eb ofrues tjet\u00ebr (e njihni?). K\u00ebtu tani kan\u00eb dhe fabrikat e front-endit dhe backendit, dhe ruajt\u00ebsit jan\u00eb lidhur menj\u00ebher\u00eb me kat\u00ebr kontroler\u00eb. Megjithat\u00eb, n\u00eb pun\u00ebn e algoritmeve t\u00eb brendshme t\u00eb sistemit ka nuanca q\u00eb nuk jan\u00eb t\u00eb dukshme n\u00eb nj\u00eb v\u00ebshtrim t\u00eb par\u00eb.<\/p>\n
N\u00eb k\u00ebt\u00eb skem\u00eb paraqitet arkitektura jon\u00eb aktuale e sistemit t\u00eb ruajtjes Dorado V6, e kompletuar me t\u00eb gjitha komponent\u00ebt e brendsh\u00ebm. Le t\u00eb shqyrtojm\u00eb se si k\u00ebto sisteme p\u00ebrballojn\u00eb nj\u00eb situat\u00eb tipike \u2014 d\u00ebshtimin e nj\u00eb kontroler.<\/p>\n
N\u00eb sistemet klasike, p\u00ebrfshir\u00eb edhe Dorado V3, periudha e nevojshme p\u00ebr rishp\u00ebrndarjen e ngarkes\u00ebs pas nj\u00eb d\u00ebshtimi arrin deri n\u00eb kat\u00ebr sekonda. Gjat\u00eb k\u00ebsaj kohe, hyrja-dalja ndalet plot\u00ebsisht. N\u00eb zgjidhjen Solution B nga koleg\u00ebt tan\u00eb, ndon\u00ebse me nj\u00eb arkitektur\u00eb m\u00eb moderne, koha e papun\u00ebsis\u00eb pas d\u00ebshtimit \u00ebsht\u00eb edhe m\u00eb e lart\u00eb \u2014 gjasht\u00eb sekonda.<\/p>\n
Sistemi i ruajtjes Dorado V6 rimerr funksionimin e tij vet\u00ebm nj\u00eb sekond\u00eb pas d\u00ebshtimit. Ky rezultat arrihet fal\u00eb nj\u00eb ambienti homogjen t\u00eb brendsh\u00ebm RDMA, q\u00eb lejon kontrolerin t\u00eb qaset n\u00eb memorien e \"t\u00eb huajve\". Nj\u00eb aspekt tjet\u00ebr i r\u00ebnd\u00ebsish\u00ebm \u00ebsht\u00eb prania e fabrik\u00ebs s\u00eb frontend-it, e cila siguron q\u00eb rruga p\u00ebr hostin t\u00eb mbetet e pandryshuar. Porta mbetet e nj\u00ebjt\u00eb, dhe ngarkesa thjesht d\u00ebrgohet te kontroler\u00ebt e sh\u00ebndetshme nga drejtuesit e shum\u00ebfishimit (multipassing).<\/p>\n
D\u00ebshtimi i dyt\u00eb i kontrolerit n\u00eb Dorado V6 trajtohet p\u00ebr nj\u00eb sekond\u00eb sipas s\u00eb nj\u00ebjt\u00ebs skem\u00eb. P\u00ebr Dorado V3, kjo merr rreth gjasht\u00eb sekonda, nd\u00ebrsa p\u00ebr nj\u00eb zgjidhje tjet\u00ebr, n\u00ebnt\u00eb. P\u00ebr shum\u00eb DBA, k\u00ebto intervals nuk mund t\u00eb konsiderohen m\u00eb t\u00eb pranueshme, pasi gjat\u00eb k\u00ebsaj kohe sistemi kalon n\u00eb modalitetin standby dhe nuk funksionon m\u00eb. Kjo \u00ebsht\u00eb ve\u00e7an\u00ebrisht e vlefshme p\u00ebr DB t\u00eb ndara n\u00eb shum\u00eb seksione.<\/p>\n
Nuk \u00ebsht\u00eb e mundur t\u00eb p\u00ebrballohet d\u00ebshtimi i tret\u00eb i kontrolerit n\u00eb Solution A. Thjesht p\u00ebr shkak se humbet qasja n\u00eb nj\u00eb pjes\u00eb t\u00eb disqeve me t\u00eb dh\u00ebna. Nga ana tjet\u00ebr, Solution B n\u00eb nj\u00eb situat\u00eb t\u00eb till\u00eb rikthen funksionalitetin, p\u00ebr t\u00eb cilin nevojiten, si n\u00eb rastin e m\u00ebparsh\u00ebm, n\u00ebnt\u00eb sekonda.<\/p>\n
\u00c7far\u00eb ndodh me Dorado V6? Nj\u00eb sekond\u00eb.<\/p>\n
\u00c7far\u00eb mund t\u00eb b\u00ebhet n\u00eb nj\u00eb sekond\u00eb<\/h2>\n \nPothuajse asgj\u00eb, mir\u00ebpo kjo as nuk na nevojitet. Le t\u00eb p\u00ebrs\u00ebrisim, q\u00eb n\u00eb Dorado V6 t\u00eb klas\u00ebs hi-end, fabrika e frontend-it \u00ebsht\u00eb e shk\u00ebputur nga fabrika e kontrollor\u00ebve. Kjo do t\u00eb thot\u00eb se nuk ka porte rigorozisht t\u00eb ndara q\u00eb i p\u00ebrkasin nj\u00eb kontrollori t\u00eb ve\u00e7ant\u00eb. Ristrukturimi pas d\u00ebshtimit nuk n\u00ebnkupton k\u00ebrkimin e rrug\u00ebve alternative ose ri-inizializimin e shum\u00ebfishimit. Sistemi vazhdon t\u00eb funksionoj\u00eb si\u00e7 ka funksionuar.<\/p>\n
Q\u00ebndrueshm\u00ebria ndaj d\u00ebshtimeve t\u00eb shumta<\/h2>\n \nModelet m\u00eb t\u00eb avancuara t\u00eb Dorado V6 p\u00ebrballojn\u00eb pa asnj\u00eb problem d\u00ebshtimin e nj\u00ebkohsh\u00ebm t\u00eb dy kontroler\u00ebve t\u00eb \u00e7do \"motori\". Kjo b\u00ebhet e mundur sepse tani zgjidhja ruan tre kopje t\u00eb caches. Pra, edhe n\u00eb rastin e d\u00ebshtimit t\u00eb dyfisht\u00eb, gjithmon\u00eb do t\u00eb ket\u00eb nj\u00eb kopje t\u00eb plot\u00eb.<\/p>\n
D\u00ebshtimi sinkron i t\u00eb kat\u00ebr kontroler\u00ebve n\u00eb nj\u00eb \"motor\" gjithashtu nuk do t\u00eb shkaktoj\u00eb pasoja fatale, sepse t\u00eb tret\u00eb kopjet e caches n\u00eb \u00e7do moment jan\u00eb t\u00eb shp\u00ebrndara mes \"motor\u00ebve\". Sistemi vet\u00eb siguron p\u00ebr respektimin e k\u00ebsaj logjike pune.<\/p>\n
M\u00eb n\u00eb fund, nj\u00eb skenar q\u00eb \u00ebsht\u00eb shum\u00eb i pabesuesh\u00ebm \u00ebsht\u00eb d\u00ebshtimi i radh\u00ebs i shtat\u00eb kontroler\u00ebve nga tet\u00eb. P\u00ebr m\u00eb tep\u00ebr, intervali minimal i pranuesh\u00ebm p\u00ebr t\u00eb mbajtur funksionalitetin mes d\u00ebshtimeve individuale \u00ebsht\u00eb 15 minuta. Gjat\u00eb k\u00ebsaj kohe, sistemi i ruajtjes arrin t\u00eb kryej\u00eb operacionet e nevojshme p\u00ebr migrimin e caches.<\/p>\n
Kontroleri i fundit t\u00eb mbijetuari do t\u00eb siguroj\u00eb funksionimin e magazin\u00ebs s\u00eb t\u00eb dh\u00ebnave dhe do t\u00eb mbaj\u00eb cache-in p\u00ebr pes\u00eb dit\u00eb (vlera e paracaktuar, e cila mund t\u00eb ndryshohet leht\u00ebsisht n\u00eb cil\u00ebsimet). Pas k\u00ebsaj, cache do t\u00eb \u00e7aktivizohet, por funksionimi i sistemit t\u00eb ruajtjes do t\u00eb vazhdoj\u00eb.<\/p>\n
P\u00ebrdit\u00ebsime pa shqet\u00ebsime<\/h2>\n \nSistemi i ri operativ Dorado V6 lejon p\u00ebrdit\u00ebsimin e firmware-it t\u00eb sistemit t\u00eb ruajtjes pa rinisje t\u00eb kontroler\u00ebve.<\/p>\n
Sistemi operativ, ashtu si n\u00eb rastet e zgjidhjeve t\u00eb m\u00ebparshme, \u00ebsht\u00eb i bazuar n\u00eb Linux, por shum\u00eb procese operative jan\u00eb transferuar nga b\u00ebrthama n\u00eb modalitetin e p\u00ebrdoruesit. Shumica e funksioneve, p\u00ebr shembull ato q\u00eb p\u00ebrgjigjen p\u00ebr deduplikimin dhe kompresimin, tani jan\u00eb thjesht dajme q\u00eb punojn\u00eb n\u00eb m\u00ebnyr\u00eb t\u00eb vazhdueshme. Fal\u00eb k\u00ebsaj, p\u00ebrdit\u00ebsimi i moduleve t\u00eb ve\u00e7anta nuk k\u00ebrkon t\u00eb ndryshohet e gjith\u00eb sistemi operativ. P\u00ebr shembull, p\u00ebr t\u00eb shtuar mb\u00ebshtetje p\u00ebr nj\u00eb protokoll t\u00eb ri, duhet vet\u00ebm t\u00eb \u00e7aktivizohet moduli p\u00ebrkat\u00ebs dhe t\u00eb aktivizohet i riu.<\/p>\n
E qart\u00eb se pyetjet mbi p\u00ebrdit\u00ebsimin e sistemit t\u00ebr\u00ebsisht vazhdojn\u00eb t\u00eb ekzistojn\u00eb, pasi edhe n\u00eb b\u00ebrtham\u00eb mund t\u00eb ken\u00eb elemente q\u00eb k\u00ebrkojn\u00eb p\u00ebrdit\u00ebsimin. Por ata, sipas v\u00ebzhgimeve tona, jan\u00eb m\u00eb pak se 6% e shum\u00ebs totale. Kjo lejon q\u00eb kontroler\u00ebt t\u00eb rinet\u00eb shum\u00eb m\u00eb rrall\u00eb se m\u00eb par\u00eb.<\/p>\n
Zgjidhjet t\u00eb q\u00ebndrueshme ndaj katastrofave dhe zgjidhjet me disponibilitet t\u00eb lart\u00eb (HA\/DR)<\/h2>\n \nDorado V6 \u00ebsht\u00eb \"nga kutia\" e gatshme p\u00ebr integrim n\u00eb zgjidhje gjeo-ndar\u00ebse, klaster\u00eb t\u00eb nivelit urban (metro) dhe qendrat e t\u00eb dh\u00ebnave \"tri-fold\".<\/p>\n
N\u00eb an\u00ebn e majt\u00eb t\u00eb ilustrrimit t\u00eb m\u00ebsip\u00ebrm \u2013 nj\u00eb metro-klaster i njohur p\u00ebr shum\u00eb. Dy SHTC funksionojn\u00eb n\u00eb modin active \/ active n\u00eb nj\u00eb distanc\u00eb deri n\u00eb 100 km nga nj\u00ebra-tjetra. Nj\u00eb infrastruktur\u00eb e till\u00eb me nj\u00eb ose m\u00eb shum\u00eb server\u00eb kvorum mund t\u00eb mb\u00ebshtetet nga zgjidhje t\u00eb kompanive t\u00eb ndryshme, p\u00ebrfshir\u00eb sistemin ton\u00eb t\u00eb cloud FusionSphere. Karakteristikat e kanalit nd\u00ebrmjet vendeve b\u00ebhen ve\u00e7an\u00ebrisht t\u00eb r\u00ebnd\u00ebsishme n\u00eb k\u00ebto projekte, nd\u00ebrsa funksioni HyperMetro, i disponuesh\u00ebm, gjithashtu, \u201cnga kutia\u201d, merr p\u00ebrsip\u00ebr t\u00eb gjitha detyrat e tjera. Integrimi \u00ebsht\u00eb i mundur p\u00ebrmes Fibre Channel, si dhe p\u00ebrmes iSCSI n\u00eb rrjetet IP, n\u00ebse nevojitet. Nuk ka m\u00eb nevoj\u00eb p\u00ebr nj\u00eb optik\u00eb \u201ct\u00eb err\u00ebt\u201d t\u00eb dedikuar, pasi sistemi \u00ebsht\u00eb n\u00eb gjendje t\u00eb lidhet p\u00ebrmes kanaleve ekzistuese.<\/p>\n
Gjat\u00eb nd\u00ebrtimit t\u00eb sistemeve t\u00eb tilla, k\u00ebrkesa e vetme harduerike p\u00ebr SHTC \u00ebsht\u00eb rezervimi i porteve p\u00ebr replikim. B\u00ebhet e nevojshme t\u00eb blini nj\u00eb licenc\u00eb, t\u00eb aktivizoni server\u00ebt kvorum \u2013 fizik\u00eb ose virtual\u00eb \u2013 dhe t\u00eb siguroni lidhshm\u00ebrin\u00eb IP me kontrollet (10 Mbit\/s, 50 ms).<\/p>\n
Kjo arkitektur\u00eb mund t\u00eb transferohet leht\u00ebsisht n\u00eb nj\u00eb sistem me tre QKA (shihni pjes\u00ebn e djatht\u00eb t\u00eb ilustrrimit). P\u00ebr shembull, kur dy QKA funksionojn\u00eb n\u00eb modin metro-klaster, dhe nj\u00eb vend tjet\u00ebr, i pozicionuar n\u00eb nj\u00eb distanc\u00eb m\u00eb shum\u00eb se 100 km, p\u00ebrdor replikimin asinkron.<\/p>\n
Sistemi teknologjikisht mb\u00ebshtet skenare t\u00eb ndryshme biznesi, t\u00eb cilat do t\u00eb realizohen n\u00eb rast ekscesi masiv.<\/p>\n
Mund\u00ebsia e mbijetes\u00ebs s\u00eb metro-klasterit gjat\u00eb disa d\u00ebshtimeve<\/h2>\n \nM\u00eb sip\u00ebr dhe m\u00eb posht\u00eb po ashtu \u00ebsht\u00eb treguar nj\u00eb metro-klaster klasik, i p\u00ebrb\u00ebr\u00eb nga dy SHTC dhe nj\u00eb server kvorum. Si\u00e7 e shihni, n\u00eb gjasht\u00eb nga n\u00ebnt\u00eb skenar\u00ebt e mundsh\u00ebm t\u00eb d\u00ebshtimeve, infrastruktura jon\u00eb do t\u00eb ruaj\u00eb funksionalitetin.<\/p>\n
P\u00ebr shembull, n\u00eb skenarin e dyt\u00eb, n\u00eb rast d\u00ebshtimi t\u00eb serverit kvorum dhe sinkronizimit midis vendeve, sistemi mbetet funksional, pasi vendi i dyt\u00eb ndalon pun\u00ebn. Nj\u00eb sjellje e till\u00eb \u00ebsht\u00eb e inkorporuar n\u00eb algoritmet e nd\u00ebrtuara.<\/p>\n
Madje edhe pas tre d\u00ebshtimeve, mund t\u00eb ruhet qasja n\u00eb informacion, n\u00ebse intervali midis tyre ishte t\u00eb pakt\u00ebn 15 sekonda.<\/p>\n
Ashtu si\u00e7 pritej<\/h2>\n \nT\u00eb kujtojm\u00eb se Huawei prodhon jo vet\u00ebm SHTC, por edhe nj\u00eb gam\u00eb t\u00eb plot\u00eb t\u00eb pajisjeve rrjet\u00ebrore. \u00c7far\u00ebdo ofruesi SHTC q\u00eb t\u00eb zgjidhni, n\u00ebse midis vendeve p\u00ebrdoret nj\u00eb rrjet WDM, n\u00eb 90% t\u00eb rasteve ai do t\u00eb nd\u00ebrtohet n\u00eb zgjidhje nga kompania jon\u00eb. Lind nj\u00eb pyetje e arsyeshme: p\u00ebrse t\u00eb krijojm\u00eb nj\u00eb \u201czoo\u201d sistemesh, kur edhe pajisjet q\u00eb jan\u00eb plot\u00ebsisht t\u00eb p\u00ebrputhshme mund t\u00eb merrni nga nj\u00eb ofrues?<\/p>\n
Rreth \u00e7\u00ebshtjes s\u00eb performanc\u00ebs<\/h2>\n \nMe siguri, askush nuk ka nevoj\u00eb t\u00eb bindi se kalimi n\u00eb SHTC All-Flash lejon t\u00eb reduktohen ndjesh\u00ebm shpenzimet p\u00ebr mb\u00ebshtetje t\u00eb infrastruktur\u00ebs, pasi t\u00eb gjitha operacionet rutin\u00eb kryhen shum\u00eb m\u00eb shpejt. T\u00eb gjitha ofruesit e pajisjeve t\u00eb tilla e konfirmojn\u00eb k\u00ebt\u00eb. Nd\u00ebrkoh\u00eb, shum\u00eb ofrues fillojn\u00eb t\u00eb manipullojn\u00eb kur flitet p\u00ebr r\u00ebnien e performanc\u00ebs n\u00eb p\u00ebrfshirjen e m\u00ebnyrave t\u00eb ndryshme t\u00eb funksionimit t\u00eb SHTC.<\/p>\n
N\u00eb industrin\u00eb ton\u00eb \u00ebsht\u00eb praktik\u00eb e zakonshme t\u00eb jepet SHTC p\u00ebr testim p\u00ebr nj\u00eb deri n\u00eb dy dit\u00eb. Ofruesi aktivizon nj\u00eb test 20-minut\u00ebsh n\u00eb nj\u00eb sistem t\u00eb zbraz\u00ebt, duke arritur rezultate t\u00eb jasht\u00ebzakonshme t\u00eb performanc\u00ebs. Por n\u00eb funksionimin real shfaqen shpejt \u201cgrackat\u201d. Pas nj\u00eb dite, vlerat e bukura t\u00eb IOPS ulen ndjesh\u00ebm, dhe n\u00ebse SHTC mbushet deri n\u00eb 80%, ato b\u00ebhen edhe m\u00eb t\u00eb vogla. Me aktivizimin e RAID 5 n\u00eb vend t\u00eb RAID 10 humb\u00ebn edhe 10-15%, dhe n\u00eb modin metro-klaster performanca m\u00eb tej ndihmohet.<\/p>\n
Gjith\u00e7ka q\u00eb u p\u00ebrmend m\u00eb sip\u00ebr, nuk \u00ebsht\u00eb p\u00ebr Dorado V6. Klient\u00ebt tan\u00eb kan\u00eb mund\u00ebsin\u00eb t\u00eb aktivizojn\u00eb testin e performanc\u00ebs p\u00ebr fundjav\u00eb ose t\u00eb pakt\u00ebn p\u00ebr nat\u00ebn. At\u00ebher\u00eb duket se si aktivizimi i opsioneve t\u00eb ndryshme \u2013 si snapshot dhe replikimi \u2013 ndikon n\u00eb vlerat e arritshme t\u00eb IOPS.<\/p>\n
N\u00eb Dorado V6, snapshot-et dhe RAID me paritet thuajse nuk ndikojn\u00eb n\u00eb performanc\u00eb (3\u20135% n\u00eb vend t\u00eb 10-15%). Mbledhja e mbeturinave (p\u00ebrmbushja e qelizave t\u00eb ruajt\u00ebsit me zero), kompresimi, deduplicimi n\u00eb SHTC, e mbushur n\u00eb 80%, gjithmon\u00eb do t\u00eb ndikojn\u00eb n\u00eb shpejt\u00ebsin\u00eb totale t\u00eb p\u00ebrpunimit t\u00eb k\u00ebrkesave. Por Dorado V6 \u00ebsht\u00eb interesante sepse, pa marr\u00eb parasysh kombinimin e funksioneve dhe mekanizmave mbrojt\u00ebs q\u00eb aktivizoni, performanca finale e SHTC nuk do t\u00eb bjer\u00eb m\u00eb posht\u00eb 80% t\u00eb vler\u00ebs s\u00eb arritur pa ngarkes\u00eb.<\/p>\n
Balancimi i ngarkes\u00ebs<\/h2>\n \nPerformanca e lart\u00eb e Dorado V6 arrihet p\u00ebrmes balancimit n\u00eb \u00e7do faz\u00eb, dometh\u00ebn\u00eb:<\/p>\n
\nt\u00eb kalimeve t\u00eb shumta;<\/li>\n p\u00ebrdorimi i lidhjeve t\u00eb shumta nga nj\u00eb host;<\/li>\n prania e fabrik\u00ebs frontend;<\/li>\n shk\u00ebputja e pun\u00ebs s\u00eb kontrolleve t\u00eb SHTC;<\/li>\n ndarja e ngarkes\u00ebs mes t\u00eb gjith\u00eb ruajt\u00ebsve n\u00eb nivelin RAID 2.0+.<\/li>\n<\/ul>\n\nN\u00eb thelb, kjo \u00ebsht\u00eb nj\u00eb praktik\u00eb e zakonshme. Sot, pak kush e ruan t\u00eb gjitha t\u00eb dh\u00ebnat n\u00eb nj\u00eb LUN: t\u00eb gjith\u00eb p\u00ebrpiqen t\u00eb ken\u00eb, qoft\u00eb tet\u00eb, qoft\u00eb dyzet, madje edhe m\u00eb shum\u00eb. Kjo \u00ebsht\u00eb nj\u00eb qasje e qart\u00eb dhe e sakt\u00eb, t\u00eb cil\u00ebn e ndajm\u00eb. Por, n\u00ebse detyra juaj k\u00ebrkon vet\u00ebm nj\u00eb LUN, q\u00eb \u00ebsht\u00eb m\u00eb e leht\u00eb p\u00ebr t\u2019u mir\u00ebmbajtur, zgjidhjet tona arkitekturore lejojn\u00eb t\u00eb arrijm\u00eb nj\u00eb performanc\u00eb prej 80% t\u00eb disponueshme n\u00eb krahasim me p\u00ebrdorimin e disa LUN-\u00ebve.<\/p>\n
Planifikimi dinamik i ngarkes\u00ebs s\u00eb procesor\u00ebve<\/h2>\n \nShp\u00ebrndarja e ngarkes\u00ebs n\u00eb procesor\u00eb kur p\u00ebrdoret nj\u00eb LUN \u00ebsht\u00eb realizuar n\u00eb k\u00ebt\u00eb m\u00ebnyr\u00eb: detyrat, edhe n\u00eb nivelin LUN, ndahen n\u00eb 'sharde' t\u00eb ve\u00e7anta, \u00e7do nj\u00ebsi \u00ebsht\u00eb fort e lidhur me nj\u00eb kontrollues t\u00eb ve\u00e7ant\u00eb n\u00eb 'nd\u00ebrtes\u00eb'. Ky proces b\u00ebhet p\u00ebr t\u00eb siguruar q\u00eb sistemi t\u00eb mos humbas\u00eb performanc\u00eb, nd\u00ebrsa 'kalohet' me k\u00ebt\u00eb cop\u00eb t\u00eb dh\u00ebnash nd\u00ebrmjet kontrolluesve t\u00eb ndrysh\u00ebm. <\/p>\n
Nj\u00eb tjet\u00ebr mekaniz\u00ebm p\u00ebr ruajtjen e performanc\u00ebs s\u00eb lart\u00eb \u00ebsht\u00eb planifikimi dinamik, ku b\u00ebrthamat e ndryshme t\u00eb procesor\u00ebve mund t\u00eb shp\u00ebrndahen n\u00eb grupe t\u00eb ndryshme detyrash. P\u00ebr shembull, n\u00ebse tani sistemi \u00ebsht\u00eb i pap\u00ebrdorur n\u00eb nivelin e dedupikimit dhe kompresimit, at\u00ebher\u00eb nj\u00eb pjes\u00eb e b\u00ebrthamave mund t\u00eb angazhohet n\u00eb procesin e trajtimit t\u00eb hyrjes-daljes. Ose e kund\u00ebrta. E gjith\u00eb kjo kryhet automatikisht dhe n\u00eb m\u00ebnyr\u00eb transparente p\u00ebr p\u00ebrdoruesin. <\/p>\n
T\u00eb dh\u00ebnat mbi ngarkes\u00ebn aktuale t\u00eb \u00e7do b\u00ebrthame Dorado V6 nuk shfaqen n\u00eb nd\u00ebrfaqen grafike, por p\u00ebrmes linj\u00ebs s\u00eb komand\u00ebs mund t\u00eb aksesoni OS-n\u00eb e kontrolluesit dhe t\u00eb p\u00ebrdorni komand\u00ebn standarde t\u00eb Linux-it. top<\/i>.<\/p>\n
Mb\u00ebshtetje p\u00ebr NVMe dhe RoCE<\/h2>\n \nSi\u00e7 u p\u00ebrmend, aktualisht Dorado V6 mb\u00ebshtet plot\u00ebsisht NVMe mbi Fibre Channel 'nga fabrika' dhe nuk k\u00ebrkon licenca t\u00eb ve\u00e7anta. N\u00eb gjysm\u00ebn e vitit do t\u00eb ket\u00eb mb\u00ebshtetje p\u00ebr modalitetin NVMe mbi Ethernet. P\u00ebr ta p\u00ebrdorur at\u00eb plot\u00ebsisht, do t\u00eb k\u00ebrkohet mb\u00ebshtetje p\u00ebr Ethernet me akses t\u00eb drejtp\u00ebrdrejt\u00eb n\u00eb memorie (DMA) versioni v2.0 p\u00ebr t\u00eb dy pal\u00ebt, si p\u00ebr sistemin e ruajtjes ashtu edhe p\u00ebr switch-\u00ebt dhe adapter\u00ebt e rrjetit. P\u00ebr shembull, t\u00eb till\u00eb si Mellanox ConnectX-4 ose ConnectX-5. Mund t\u00eb p\u00ebrdoren edhe kartat e rrjetit t\u00eb nd\u00ebrtuara mbi \u00e7ipet tona. Gjithashtu, mb\u00ebshtetje p\u00ebr RoCE duhet t\u00eb realizohet n\u00eb nivelin e sistemit operativ.<\/p>\n
P\u00ebrgjith\u00ebsisht, ne e mendojm\u00eb Dorado V6 si nj\u00eb sistem t\u00eb orientuar ndaj NVMe. Pavar\u00ebsisht mb\u00ebshtetjes p\u00ebr Fibre Channel dhe iSCSI, \u00ebsht\u00eb planifikuar kalimi n\u00eb Ethernet me shpejt\u00ebsi t\u00eb lart\u00eb me RDMA.<\/p><\/blockquote>\n
Nj\u00eb pik\u00eb marketingu<\/h2>\n \nFal\u00eb faktit se sistemi Dorado V6 ka nj\u00eb q\u00ebndrueshm\u00ebri t\u00eb lart\u00eb ndaj d\u00ebshtimeve, shkall\u00ebzohet mir\u00eb horizontalisht, mb\u00ebshtet teknologji t\u00eb ndryshme migrimi etj., efekti ekonomik i blerjes s\u00eb saj b\u00ebhet i duksh\u00ebm me fillimin e p\u00ebrdorimit intensiv t\u00eb sistemit t\u00eb ruajtjes. Ne do t\u00eb vazhdojm\u00eb t\u00eb punojm\u00eb p\u00ebr ta b\u00ebr\u00eb zotimin e sistemit sa m\u00eb t\u00eb favorsh\u00ebm, edhe n\u00ebse n\u00eb fillim kjo nuk shfaqet.<\/p>\n
Sidomos, ne formuluam programin FLASH EVER, i lidhur me zgjerimin e ciklit t\u00eb jet\u00ebs s\u00eb sistemit t\u00eb ruajtjes dhe q\u00eb ka p\u00ebr q\u00ebllim leht\u00ebsimin maksimal t\u00eb klient\u00ebve gjat\u00eb p\u00ebrmir\u00ebsimeve.<\/p>\n
\nmund\u00ebsia e z\u00ebvend\u00ebsimit gradual t\u00eb kontrolluesve dhe raftet me disqe me versione t\u00eb reja pa z\u00ebvend\u00ebsimin e t\u00eb gjith\u00eb pajisjes;<\/li>\n mund\u00ebsia e ruajtjes federative (bashkimi i versioneve t\u00eb ndryshme Dorado n\u00eb nj\u00eb klaster t\u00eb kombinuar t\u00eb sistemit t\u00eb ruajtjes);<\/li>\n virtualizim inteligjent (mund\u00ebsia e p\u00ebrdorimit t\u00eb pajisjeve t\u00eb pal\u00ebve t\u00eb treta si pjes\u00eb e zgjidhjes Dorado).<\/li>\n<\/ul>\n\n
P\u00ebrve\u00e7 k\u00ebsaj, n\u00eb lidhje me pandemin\u00eb, sa koh\u00ebdo q\u00eb t\u00eb zgjas\u00eb ajo, ve\u00e7an\u00ebrisht n\u00eb k\u00ebt\u00eb proces del ndjesh\u00ebm nevoja p\u00ebr t\u00eb siguruar punonj\u00ebsit e larg\u00ebt me ambiente pune virtuale. N\u00eb k\u00ebt\u00eb proces, Dorado V6 gjithashtu mund t\u00eb zgjidhte shum\u00eb pyetje. P\u00ebr k\u00ebt\u00eb, ne jemi duke b\u00ebr\u00eb t\u00eb gjitha p\u00ebrpjekjet e nevojshme, p\u00ebrfshir\u00eb arritjen e nj\u00eb marr\u00ebveshjeje p\u00ebr t\u00eb p\u00ebrfshir\u00eb sistemin e ri n\u00eb list\u00ebn e p\u00ebrputhshm\u00ebris\u00eb s\u00eb VMware.<\/p>\n
***<\/h2>\n \nDhe, mos harroni p\u00ebr webinar\u00ebt tan\u00eb t\u00eb shumt\u00eb, q\u00eb mbahen jo vet\u00ebm n\u00eb segmentin rusishtfol\u00ebs, por edhe n\u00eb nivel global. Lista e webinar\u00ebve p\u00ebr prillin \u00ebsht\u00eb e disponueshme n\u00eb lidhjes<\/a><\/noindex>. habr.com<\/a> <\/p>","protected":false,"gt_translate_keys":[{"key":"rendered","format":"html"}]},"excerpt":{"rendered":"\u041f\u043e\u0436\u0430\u043b\u0443\u0439\u0441\u0442\u0430, \u043d\u0435 \u0441\u043f\u0435\u0448\u0438\u0442\u0435 \u0441 \u0432\u044b\u0432\u043e\u0434\u0430\u043c\u0438 \u0438\u0437-\u0437\u0430 \u0437\u0430\u0433\u043e\u043b\u043e\u0432\u043a\u0430! \u0423 \u043d\u0430\u0441 \u0435\u0441\u0442\u044c \u0443\u0432\u0435\u0441\u0438\u0441\u0442\u044b\u0435 \u0430\u0440\u0433\u0443\u043c\u0435\u043d\u0442\u044b \u0432 \u0435\u0433\u043e \u043f\u043e\u0434\u0442\u0432\u0435\u0440\u0436\u0434\u0435\u043d\u0438\u0435, \u0438 \u043c\u044b \u0443\u043f\u0430\u043a\u043e\u0432\u0430\u043b\u0438 \u0438\u0445, \u043d\u0430\u0441\u043a\u043e\u043b\u044c\u043a\u043e \u043c\u043e\u0433\u043b\u0438 \u043a\u043e\u043c\u043f\u0430\u043a\u0442\u043d\u043e. \u041f\u0440\u0435\u0434\u043b\u0430\u0433\u0430\u0435\u043c \u0432\u0430\u0448\u0435\u043c\u0443 \u0432\u043d\u0438\u043c\u0430\u043d\u0438\u044e \u043f\u043e\u0441\u0442 \u043e \u043a\u043e\u043d\u0446\u0435\u043f\u0446\u0438\u0438 \u0438 \u043f\u0440\u0438\u043d\u0446\u0438\u043f\u0430\u0445 \u0440\u0430\u0431\u043e\u0442\u044b \u043d\u0430\u0448\u0435\u0439 \u043d\u043e\u0432\u043e\u0439 \u0441\u0438\u0441\u0442\u0435\u043c\u044b \u0445\u0440\u0430\u043d\u0435\u043d\u0438\u044f \u0434\u0430\u043d\u043d\u044b\u0445, \u0440\u0435\u043b\u0438\u0437 \u043a\u043e\u0442\u043e\u0440\u043e\u0439 \u0441\u043e\u0441\u0442\u043e\u044f\u043b\u0441\u044f \u0432 \u044f\u043d\u0432\u0430\u0440\u0435 2020 \u0433\u043e\u0434\u0430. \u041f\u043e \u043d\u0430\u0448\u0435\u043c\u0443 \u0443\u0431\u0435\u0436\u0434\u0435\u043d\u0438\u044e, \u0433\u043b\u0430\u0432\u043d\u043e\u0435 \u043a\u043e\u043d\u043a\u0443\u0440\u0435\u043d\u0442\u043d\u043e\u0435 \u043f\u0440\u0435\u0438\u043c\u0443\u0449\u0435\u0441\u0442\u0432\u043e \u0441\u0435\u043c\u0435\u0439\u0441\u0442\u0432\u0443 \u0421\u0425\u0414 Dorado V6 \u043e\u0431\u0435\u0441\u043f\u0435\u0447\u0438\u0432\u0430\u044e\u0442 \u0438\u043c\u0435\u043d\u043d\u043e […]<\/p>\n","protected":false,"gt_translate_keys":[{"key":"rendered","format":"html"}]},"author":1,"featured_media":79692,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[688],"tags":[],"class_list":["post-79691","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-administrirovanie"],"aioseo_notices":[],"aioseo_head":"\n\t\t\n\t
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