{"id":32381,"date":"2019-10-31T21:46:44","date_gmt":"2019-10-31T18:46:44","guid":{"rendered":"https:\/\/prohoster.info\/blog\/novyj-tip-ssd-hranilishh-sokratit-energopotreblenie-v-tsod-kak-eto-rabotaet\/"},"modified":"2019-10-31T21:46:44","modified_gmt":"2019-10-31T18:46:44","slug":"novyj-tip-ssd-hranilishh-sokratit-energopotreblenie-v-tsod-kak-eto-rabotaet","status":"publish","type":"post","link":"https:\/\/prohoster.info\/sq\/blog\/administrirovanie\/novyj-tip-ssd-hranilishh-sokratit-energopotreblenie-v-tsod-kak-eto-rabotaet","title":{"rendered":"Nj\u00eb lloj i ri i ruajtjeve SSD do t\u00eb reduktoj\u00eb konsumin e energjis\u00eb n\u00eb QDC - si funksionon kjo","gt_translate_keys":[{"key":"rendered","format":"text"}]},"content":{"rendered":"
Sistemi do t\u00eb reduktoj\u00eb shpenzimet p\u00ebr energjin\u00eb elektrike me dyfish.<\/h5>\n

\n\"Nj\u00eb<\/a><\/noindex>
\n\/ \u0444\u043e\u0442\u043e Andy Melton<\/a><\/noindex> CC BY-SA<\/i><\/p>\n

Pse nevojitet nj\u00eb arkitektur\u00eb e re<\/h2>\n

\nSipas vler\u00ebsimeve nga Data Centre Dynamics<\/a><\/noindex>, deri n\u00eb vitin 2030 pajisjet elektronike do t\u00eb konsumojn\u00eb 40% t\u00eb t\u00eb gjith\u00eb energjis\u00eb s\u00eb prodhuar n\u00eb planet. Af\u00ebrsisht 20% e k\u00ebtij volumi do t\u00eb bien mbi sektorin IT dhe qendrat e t\u00eb dh\u00ebnave. Sipas t\u00eb dh\u00ebnave<\/noindex> analist\u00ebve evropian\u00eb, Qendrat e T\u00eb Dh\u00ebnave tashm\u00eb \"po marrin\" 1.4% t\u00eb gjith\u00eb energjis\u00eb elektrike. Pritet q\u00eb ky num\u00ebr t\u00eb rritet n\u00eb 5% deri n\u00eb vitin 2020<\/a><\/noindex>.
\n<\/a><\/noindex>
\nNj\u00eb pjes\u00eb t\u00eb konsiderueshme t\u00eb energjis\u00eb elektrike e konsumojn\u00eb magazinat SSD. Gjat\u00eb periudh\u00ebs 2012-2017, p\u00ebrqindja e disqeve t\u00eb gjendjes s\u00eb ngurt\u00eb n\u00eb qendrat e t\u00eb dh\u00ebnave u rrit nga 8 n\u00eb 22%<\/a><\/noindex>. Edhe pse SSD-t\u00eb konsumojn\u00eb nj\u00eb t\u00eb tret\u00ebn m\u00eb pak energji (PDF, fq.13<\/a><\/noindex>), shpenzimet p\u00ebr energjin\u00eb elektrike n\u00eb qendrat e t\u00eb dh\u00ebnave mbeten t\u00eb m\u00ebdha.<\/p>\n

P\u00ebr t\u00eb reduktuar konsumimin e energjis\u00eb t\u00eb magazinave SSD n\u00eb Qendrat e T\u00eb Dh\u00ebnave, inxhinier\u00ebt nga MIT zhvilluan nj\u00eb arkitektur\u00eb t\u00eb re p\u00ebr magazinat SSD. Ajo mori emrin LightStore dhe lejon lidhjen e magazinave direkt me rrjetin e qendrave t\u00eb t\u00eb dh\u00ebnave, duke anashkaluar serverat e ruajtjes. Sipas fjal\u00ebve<\/a><\/noindex> autor\u00ebve, sistemi do t\u00eb reduktoj\u00eb shpenzimet p\u00ebr energjin\u00eb elektrike me dyfish.<\/p>\n

Si funksionon kjo<\/h2>\n

\nLightStore \u00ebsht\u00eb nj\u00eb magazin\u00eb flash e tipit \u00e7el\u00ebs-vler\u00eb, ku k\u00ebrkesat e p\u00ebrdoruesit drejt magazinave paraqiten si \u00e7el\u00ebsa. M\u00eb pas ato d\u00ebrgohen n\u00eb nj\u00eb server, i cili \u00e7liron t\u00eb dh\u00ebnat t\u00eb lidhura me k\u00ebt\u00eb \u00e7el\u00ebs.<\/p>\n

Sistemi p\u00ebrmban<\/noindex> processor t\u00eb integruar me efikasitet energjetik, DRAM dhe memorie NAND. Ajo kontrollohet nga nj\u00eb kontrollues dhe nj\u00eb software t\u00eb ve\u00e7ant\u00eb. Kontrolluesi \u00ebsht\u00eb p\u00ebrgjegj\u00ebs p\u00ebr funksionimin me grumbujt NAND, nd\u00ebrsa softueri merret me p\u00ebrpunimin e k\u00ebrkesave KV dhe ruajtjen e \u00e7iftave t\u00eb \u00e7el\u00ebsave. Arkitektura e softuerit \u00ebsht\u00eb nd\u00ebrtuar mbi baz\u00ebn e pem\u00ebs LSM<\/a><\/noindex>, e cila p\u00ebrdoret n\u00eb shum\u00eb DB moderne.<\/p>\n

Skema e arkitektur\u00ebs mund t\u00eb paraqitet si m\u00eb posht\u00eb:<\/p>\n

\"Nj\u00eb
\n
\nN\u00eb diagram paraqiten komponent\u00ebt baz\u00eb t\u00eb LightStore. Klust\u00ebr i nyjeve punon me \u00e7ifte \u00e7el\u00ebs-vler\u00eb. Server\u00ebt e aplikacioneve lidhen me sistemin p\u00ebrmes adapter\u00ebve. Ata konvertojn\u00eb k\u00ebrkesat e klient\u00ebve (p.sh., fread() nga API POSIX) n\u00eb k\u00ebrkesa KV. Arkitektura gjithashtu ka adapter\u00eb t\u00eb ve\u00e7ant\u00eb p\u00ebr YCSB<\/a><\/noindex>, depozita bllokesh (t\u00eb bazuara n\u00eb modul BUSE) dhe depozita skedash.<\/p>\n

Duke shp\u00ebrndar\u00eb k\u00ebrkesat, adapteri p\u00ebrdor hashimin e q\u00ebndruesh\u00ebm<\/a><\/noindex>. Ky \u00ebsht\u00eb p\u00ebrdorur n\u00eb sisteme si Redis ose Swift. P\u00ebrdorimi i \u00e7el\u00ebsit t\u00eb k\u00ebrkes\u00ebs KV, adapteri gjeneron nj\u00eb \u00e7el\u00ebs hash, vlera e t\u00eb cilit p\u00ebrcakton nyj\u00ebn e synuar.<\/p>\n

Kapaciteti i klasterit LightStore zgjeron n\u00eb m\u00ebnyr\u00eb lineare \u2014 mjafton t\u00eb lidhen nyje shtes\u00eb n\u00eb rrjet. N\u00eb disa raste, mund t\u00eb jet\u00eb e nevojshme t\u00eb blihen switch t\u00eb rinj. Megjithat\u00eb, zhvilluesit i kan\u00eb pajisur \u00e7do nyje me slot shtes\u00eb p\u00ebr lidhjen e \u00e7ipave NAND.<\/p>\n

Potenciali i arkitektur\u00ebs<\/h2>\n

\nInxhinier\u00ebt nga MIT thon\u00eb se kapaciteti i zgjidhjes mbi baz\u00ebn e LightStore arrin deri n\u00eb 620 Mbps p\u00ebr Ethernet 10-gigabit. Nj\u00eb nyje konsumohet 10 W n\u00eb vend t\u00eb zakonshmeve 20 W (n\u00eb sistemet SSD q\u00eb p\u00ebrdoren sot nga qendrat e t\u00eb dh\u00ebnave). P\u00ebrve\u00e7 k\u00ebsaj, pajisja z\u00eb dy her\u00eb m\u00eb pak hap\u00ebsir\u00eb.<\/p>\n

Aktualisht, zhvilluesit jan\u00eb duke p\u00ebrmir\u00ebsuar disa aspekte. P\u00ebr shembull, LightStore nuk \u00ebsht\u00eb n\u00eb gjendje t\u00eb punoj\u00eb me k\u00ebrkesa p\u00ebr interval dhe k\u00ebrkesa t\u00eb vogla. K\u00ebto funksione do t\u00eb shtohen n\u00eb t\u00eb ardhmen, pasi LightStore p\u00ebrdor pem\u00ebt LSM. Gjithashtu, sistemi aktualisht ka nj\u00eb grup t\u00eb kufizuar adapterash \u2014 mb\u00ebshteten adapter\u00ebt YCSB dhe blloqe. N\u00eb t\u00eb ardhmen, LightStore do t\u00eb jet\u00eb n\u00eb gjendje t\u00eb p\u00ebrpunoj\u00eb k\u00ebrkesa SQL dhe t\u00eb tjera.<\/p>\n

Zhvillime t\u00eb tjera<\/h2>\n

\nN\u00eb ver\u00ebn e vitit 2018, Marvell, kompania zhvilluese e sistemeve t\u00eb ruajtjes, prezantoi nj\u00eb linj\u00eb t\u00eb re kontrollesh SSD bazuar n\u00eb sisteme AI. Zhvilluesit integruan akselerator\u00eb t\u00eb t\u00eb m\u00ebsuarit t\u00eb thell\u00eb NVIDIA n\u00eb kontrollet standarde p\u00ebr qendrat e t\u00eb dh\u00ebnave dhe aplikacionet klient. Si rezultat, ata krijuan nj\u00eb arkitektur\u00eb autonome q\u00eb konsumon m\u00eb pak energji n\u00eb krahasim me kontrollet SSD klasike. Kompania shpreson q\u00eb sistemi do t\u00eb gjej\u00eb aplikim n\u00eb llogaritjet periferike, analitik\u00ebn e t\u00eb dh\u00ebnave t\u00eb m\u00ebdha dhe IoT.<\/p>\n

Koh\u00ebt e fundit, linja e ruajt\u00ebsve Western Digital Blue u p\u00ebrmir\u00ebsua. N\u00eb prill, zhvilluesit prezantuan zgjidhjen \u2014 WD Blue SSD mbi baz\u00ebn e teknologjive SanDisk, t\u00eb cilat WD i bleu nj\u00eb vit m\u00eb par\u00eb. WD Blue SSD t\u00eb p\u00ebrdit\u00ebsuar kan\u00eb performanc\u00eb dhe efikasitet energjetik t\u00eb rritur. Arkitektura \u00ebsht\u00eb nd\u00ebrtuar mbi baz\u00ebn e specifikacionit NVMe<\/a><\/noindex>, i cili ofron qasje n\u00eb SSD t\u00eb lidhur p\u00ebrmes PCI Express.<\/p>\n

Ky specifikim rrit efikasitetin e pun\u00ebs s\u00eb SSD n\u00eb lidhje me numrin e madh t\u00eb k\u00ebrkesave t\u00eb p\u00ebrbashk\u00ebta dhe p\u00ebrshpejton qasjen n\u00eb t\u00eb dh\u00ebna. P\u00ebr m\u00eb tep\u00ebr, NVMe lejon standardizimin e nd\u00ebrfaqes SSD \u2014 prodhuesit e hardware m\u00eb nuk do t\u00eb ken\u00eb nevoj\u00eb t\u00eb shpenzojn\u00eb burime<\/a><\/noindex> p\u00ebr t\u00eb zhvilluar drivere, lidhje dhe forma unike.<\/p>\n

Perspektivat<\/h2>\n

\nTregu i SSD-disqeve p\u00ebr Qendrat e Dh\u00ebnash po shkon drejt thjeshtimit t\u00eb arkitektur\u00ebs, automatizimit t\u00eb funksionimit t\u00eb komponent\u00ebve t\u00eb ruajtjes dhe rritjes s\u00eb efikasitetit energjetik. Zhvillimi i inxhinier\u00ebve nga MIT zgjidh k\u00ebt\u00eb sfid\u00eb. presin<\/a><\/noindex>, se LightStore do t\u00eb b\u00ebhet standardi i industris\u00eb p\u00ebr ruajtjet SSD n\u00eb Qendrat e Dh\u00ebnash. Mund t\u00eb supozohet se n\u00eb t\u00eb ardhmen, bazuar n\u00eb t\u00eb, do t\u00eb shfaqen arkitektura t\u00eb reja, edhe m\u00eb efikase.<\/p>\n

\nDisa materiale nga Blogu i Par\u00eb mbi IaaS-in korporativ:<\/p>\n