{"id":34884,"date":"2019-10-31T22:01:01","date_gmt":"2019-10-31T19:01:01","guid":{"rendered":"https:\/\/prohoster.info\/blog\/upgrade-diskovoj-podsistemy-starogo-servera-s-shinoj-pcie-1-0-2-0\/"},"modified":"2019-10-31T22:01:01","modified_gmt":"2019-10-31T19:01:01","slug":"upgrade-diskovoj-podsistemy-starogo-servera-s-shinoj-pcie-1-0-2-0","status":"publish","type":"post","link":"https:\/\/prohoster.info\/ro\/blog\/administrirovanie\/upgrade-diskovoj-podsistemy-starogo-servera-s-shinoj-pcie-1-0-2-0","title":{"rendered":"Upgrade-ul subsistemului de stocare al unui server vechi de la PCIe 1.0 la 2.0","gt_translate_keys":[{"key":"rendered","format":"text"}]},"content":{"rendered":"<p><img decoding=\"async\" alt=\"Upgrade-ul subsistemului de stocare al unui server vechi de la PCIe 1.0 la 2.0\" src=\"\/wp-content\/uploads\/2019\/06\/68025340a72b1acac62371764f328712.jpg\" style=\"display:block;margin: 0 auto;\" \/><b class=\"spoiler_title\">De ce subiectul acestui articol este upgrade-ul subsistemului disc.<\/b>Este clar c\u0103, de obicei, trebuie \u00een primul r\u00e2nd:<\/p>\n<ol>\n<li>S\u0103 cre\u0219te\u021bi memoria RAM. Este un pas at\u00e2t de evident, \u00eenc\u00e2t nu am considerat necesar s\u0103 scriu despre el \u00een articolul principal.<\/li>\n<li>S\u0103 ad\u0103uga\u021bi un procesor suplimentar sau s\u0103 \u00eenlocui\u021bi ambii procesoare cu versiuni maxim performante acceptate de socket-urile serverului.<\/li>\n<\/ol>\n<p>\nPentru serverele vechi, at\u00e2t memoria, c\u00e2t \u0219i procesoarele pot fi, de obicei, g\u0103site la pre\u021buri foarte accesibile.<\/p>\n<p>\u00centr-un anumit moment, orice proprietar de server privat se confrunt\u0103 cu \u00eentrebarea - upgrade sau server nou.<\/p>\n<p>Av\u00e2nd \u00een vedere c\u0103 pre\u021bul unui server nou poate ajunge la milioane de ruble, mul\u021bi aleg calea upgrade-ului.<\/p>\n<p>Pentru un upgrade de succes, este foarte important s\u0103 folosi\u021bi compromisuri, astfel \u00eenc\u00e2t pentru un cost nesemnificativ (\u00een compara\u021bie cu pre\u021bul unui server nou) s\u0103 ob\u021binem un c\u00e2\u0219tig semnificativ de performan\u021b\u0103.<\/p>\n<p>Articolul con\u021bine o list\u0103 de SSD-uri server cu PCI-E 2.0 x8, care s-au ieftinit considerabil acum, precum \u0219i controlere RAID cu suport pentru caching SSD \u0219i un SSD SATA III testat pe un interfa\u021b\u0103 SATA II.<br \/>\n<noindex><a rel=\"nofollow\" name=\"habracut\"><\/a><\/noindex><br \/>\nCel mai evident mod de a face upgrade la subsistemul disc este trecerea de la HDD la SSD. Aceasta este valabil\u0103 at\u00e2t pentru laptopuri, c\u00e2t \u0219i pentru servere. \u00cen servere, probabil, diferen\u021ba este doar c\u0103 SSD-urile pot fi u\u0219or grupate \u00een RAID.<\/p>\n<p>Adev\u0103rul este c\u0103 exist\u0103 aspecte fine legate de faptul c\u0103 porturile SATA III pe un server vechi s-ar putea s\u0103 nu existe \u0219i atunci va trebui s\u0103 \u00eenlocui\u021bi sau s\u0103 instala\u021bi un controler corespunz\u0103tor.<\/p>\n<p>Exist\u0103, desigur, \u0219i metode intermediare.<\/p>\n<h2>Caching pe SSD.<\/h2>\n<p>\n\u00cen general, aceast\u0103 metod\u0103 este destul de potrivit\u0103 pentru baze de date, 1C, orice acces aleator. Viteza chiar se accelereaz\u0103. Pentru fi\u0219iere mari, supravegherea video, aceast\u0103 abordare este inutil\u0103.<\/p>\n<h3>Controlere RAID LSI (IBM, DELL, CISCO, Fujitsu)<\/h3>\n<p>\n\u00cencep\u00e2nd cu seria 92xx, LSI are tehnologia CacheCade 2.0, care permite utilizarea aproape oric\u0103ror SSD-uri SATA ca cache pentru array-ul RAID. At\u00e2t pentru citire, c\u00e2t \u0219i pentru scriere. \u0218i chiar crearea unui mirror din SSD-urile de cache.<\/p>\n<p>Cu controlerele branduite, totul devine mai complicat. \u00cen special \u00een cazul IBM. Cheile \u0219i SSD-urile pentru CacheCade trebuie cump\u0103rate de la IBM la pre\u021buri exorbitante, a\u0219a c\u0103 este mai simplu s\u0103 schimba\u021bi controlerul cu unul LSI \u0219i s\u0103 cump\u0103ra\u021bi un cheia hardware mai ieftin\u0103. Cheile software cost\u0103 semnificativ mai mult dec\u00e2t cele hardware.<\/p>\n<h3>Controlere RAID Adaptec<\/h3>\n<p>\nPe controlerele Adaptec exist\u0103 tehnologia MaxCache, care permite, de asemenea, utilizarea SSD-urilor ca memorie cache. Ne intereseaz\u0103 versiunile controlerelor care se termin\u0103 cu litera Q.<\/p>\n<p>Controlerele Q pot folosi aproape orice SSD, nu doar SSD-urile furnizate de Adaptec.<\/p>\n<ul>\n<li>\u00cencep\u00e2nd cu 5xxx, toate controlerele au suport pentru Hybrid RAID. Esen\u021ba acestei tehnologii este c\u0103 se realizeaz\u0103 \u00eentotdeauna citirea de pe SSD, atunci c\u00e2nd exist\u0103 un mirror, unul dintre discuri fiind SSD.<\/li>\n<li>5xxxQ, de exemplu 5805ZQ. Aceste controlere suport\u0103 MaxCache 1.0. Doar cache pentru citire.<\/li>\n<li>6xxQ, de exemplu 6805Q. MaxCache 2.0. Cache pentru citire \u0219i scriere.<\/li>\n<li>7xxQ, de exemplu 7805Q. MaxCache 3.0. Cache pentru citire \u0219i scriere.<\/li>\n<li>8xxQ nu are sens s\u0103 fie utilizat pentru upgrade datorit\u0103 pre\u021burilor ridicate.<\/li>\n<\/ul>\n<p>\n<noindex><a rel=\"nofollow\" href=\"https:\/\/habr.com\/ru\/company\/pc-administrator\/blog\/319214\/\">Articol despre cache-ul pe SSD pe Habr (controlere \u0219i OS).<\/a><\/noindex><\/p>\n<h3>Tehnologii software pentru cache-ul pe SSD<\/h3>\n<p>\nNu voi aborda aceste tehnologii. Practic, \u00een orice sistem de operare exist\u0103 acum suport pentru ele. Mi-a r\u0103mas \u00een memorie c\u0103, la utilizarea btrfs, aceasta redirec\u021bioneaz\u0103 automat cererile de citire c\u0103tre dispozitivul cu cea mai scurt\u0103 coad\u0103 \u2014 SSD.<\/p>\n<h2>SATA III SSD pe interfa\u021ba SATA II<\/h2>\n<p>\nDeoarece nu \u00eentotdeauna exist\u0103 posibilitatea \u0219i banii pentru un controler nou, apare \u00eentrebarea c\u00e2t de bine func\u021bioneaz\u0103 SSD-urile SATA III pe interfa\u021ba \u00eenvechit\u0103 SATA II.<\/p>\n<p>Vom efectua un mic test. Ca subiect de testare, vom folosi un SSD SATA III Intel S3710 de 400GB.<\/p>\n<p>Citire aleatorie, iops<br \/>\nLatenta medie la citire, mS<br \/>\nScriere aleatorie, iops<br \/>\nLatenta medie la scriere, mS<br \/>\nCitire liniar\u0103, MB\/s<br \/>\nScriere liniar\u0103, MB\/s<\/p>\n<p>SATA II<br \/>\n21241<br \/>\n2<br \/>\n13580<br \/>\n4<br \/>\n282<br \/>\n235<\/p>\n<p>SATA III<br \/>\n68073<br \/>\n0.468<br \/>\n61392<br \/>\n0.52<br \/>\n514<br \/>\n462<\/p>\n<p>\n<b class=\"spoiler_title\">Comenzi utilizate pentru testarea vitezei<\/b><\/p>\n<pre><code class=\"bash\">fio --name LinRead --eta-newline=5s --filename=\/dev\/sda --rw=read --size=500m --io_size=10g --blocksize=1024k --ioengine=libaio --iodepth=32 --direct=1 --numjobs=1 --runtime=60 --group_reporting \n\nfio --name LinWrite --eta-newline=5s --filename=\/dev\/sda --rw=write --size=500m --io_size=10g --blocksize=1024k --ioengine=libaio --fsync=10000 --iodepth=32 --direct=1 --numjobs=1 --runtime=60 --group_reporting\n\nfio --name RandRead --eta-newline=5s --filename=\/dev\/sda --rw=randread --size=500m --io_size=10g --blocksize=4k --ioengine=libaio --iodepth=32 --direct=1 --numjobs=4 --runtime=60 --group_reporting\n\nfio --name RandWrite --eta-newline=5s --filename=\/dev\/sda --rw=randwrite --size=500m --io_size=10g --blocksize=4k --ioengine=libaio --iodepth=32 --direct=1 --numjobs=4 --runtime=60 --group_reporting\n<\/code><\/pre>\n<p>Dup\u0103 cum se poate observa, diferen\u021bele \u00een ceea ce prive\u0219te viteza liniar\u0103, IOPS \u0219i laten\u021bele sunt semnificative, astfel c\u0103 are sens s\u0103 folose\u0219ti doar interfa\u021ba SATA III, iar dac\u0103 aceasta nu este disponibil\u0103, s\u0103 instalezi un controler.<\/p>\n<p>Pentru corectitudine, trebuie s\u0103 men\u021bionez c\u0103 \u00een <noindex><a rel=\"nofollow\" href=\"http:\/\/www.thg.ru\/storage\/ustanovka_ssd_v_sistemu_s_sata_3_gbits_test\/ustanovka_ssd_v_sistemu_s_sata_3_gbits_test-01.html\">alte experimente<\/a><\/noindex> diferen\u021ba de vitez\u0103 a citirii \u0219i scrierii aleatoare a fost nesemnificativ\u0103. Este posibil ca o astfel de mare diferen\u021b\u0103 \u00een IOPS \u00eentre SATA II \u0219i SATA III s\u0103 fi ap\u0103rut deoarece aveam un controler SATA II foarte slab sau un driver cu c\u00e2teva erori.<\/p>\n<p>Cu toate acestea, este un fapt c\u0103 trebuie s\u0103 verifica\u021bi viteza SATA II \u2013 poate c\u0103 ave\u021bi un controler la fel de lent. \u00cen acest caz, trecerea la un controler SATA III este obligatorie.<\/p>\n<h2>PCIe SSD pe magistrala PCI-e 2.0 sau 1.0<\/h2>\n<p>\nDup\u0103 cum se \u0219tie, cele mai rapide SSD-uri sunt PCI-e NVMe, care nu sunt limitate de protocoalele SAS sau SATA.<\/p>\n<p>Cu toate acestea, atunci c\u00e2nd instala\u021bi SSD-uri moderne PCI-e trebuie s\u0103 \u021bine\u021bi cont de faptul c\u0103 majoritatea dintre ele folosesc doar 4 linii PCI-e, de regul\u0103 PCI-e 3.0 sau 3.1.<\/p>\n<p>Acum s\u0103 ne uit\u0103m la tabelul vitezelor magistrale PCI-e.<\/p>\n<p>L\u0103\u021bimea de band\u0103 PCI Express, Gbyte\/s<\/p>\n<p>An <br \/>\n de lansare<\/p>\n<p>Versiune<br \/>\nPCI Express<\/p>\n<p>Codificare<\/p>\n<p>Vitez\u0103<br \/>\ntransmisie<\/p>\n<p>L\u0103\u021bimea de band\u0103 pe x linii<\/p>\n<p>\u00d74<br \/>\n\u00d78<br \/>\n\u00d716<\/p>\n<p>2002<br \/>\n1.0<br \/>\n8b\/10b<\/p>\n<p>0.50 Gbyte\/s<br \/>\n1.0 Gbyte\/s<br \/>\n2.0 Gbyte\/s<br \/>\n4.0 Gbyte\/s<\/p>\n<p>2007<br \/>\n2.0<br \/>\n8b\/10b<\/p>\n<p>1.0 Gbyte\/s<br \/>\n2.0 Gbyte\/s<br \/>\n4.0 Gbyte\/s<br \/>\n8.0 Gbyte\/s<\/p>\n<p>2010<br \/>\n3.0<br \/>\n128b\/130b<\/p>\n<p>1.97 Gbyte\/s<br \/>\n3.94 Gbyte\/s<br \/>\n7.88 Gbyte\/s<br \/>\n15.8 Gbyte\/s<\/p>\n<p>Atunci c\u00e2nd instala\u021bi un SSD PCI 3.0 x4 pe magistrala PCI-e 2.0, el va func\u021biona cu acela\u0219i num\u0103r de linii, dar la o vitez\u0103 semnificativ mai mic\u0103. Exist\u0103 o problem\u0103 deoarece vitezele liniare ale SSD-urilor PCI-e moderne dep\u0103\u0219esc l\u0103\u021bimea de band\u0103 a magistralei PCI-e 2.0 \u0219i cu at\u00e2t mai mult a PCI-e 1.0.<\/p>\n<h3>M.2 SSD \u0219i adaptor PCI-e<\/h3>\n<p>Exist\u0103 op\u021biuni acceptabile de upgrade, cum ar fi achizi\u021bionarea unui adaptor cu 10 dolari \u0219i montarea unui M.2 SSD \u00een server, dar din nou, pentru SSD-uri de calitate bun\u0103 viteza va fi afectat\u0103 (\u00een special pe PCI-e 1.0), iar M.2 SSD-urile nu sunt \u00eentotdeauna preg\u0103tite pentru sarcinile serverului: durabilitate mare, protec\u021bie pe alimentare \u0219i stabilitate a caracteristicilor de vitez\u0103 din cauza umplerii cache-ului SLC pe modelele ieftine.<\/p>\n<p>Astfel, aceast\u0103 metod\u0103 poate fi potrivit\u0103 doar pentru un server cu magistrala PCI-e 2.0 \u0219i ocupat cu o munc\u0103 necritic\u0103.<\/p>\n<h3>PCI-E 2.0 x8 SSD<\/h3>\n<p>\nCel mai logic upgrade din punct de vedere economic este utilizarea unui SSD PCI-E 2.0 x8 pentru servere cu magistrala PCI-e 1.0 (l\u0103\u021bime de band\u0103 de p\u00e2n\u0103 la 2 GB\/s) \u0219i PCI-e 2.0 (p\u00e2n\u0103 la 4 GB\/s).<\/p>\n<p>SSD-uri server care sunt acum la pre\u021buri foarte accesibile pot fi g\u0103site at\u00e2t pe diferite pie\u021be online, c\u00e2t \u0219i pe site-uri de licita\u021bie, inclusiv \u00een Rusia.<\/p>\n<p>Am elaborat un tabel cu astfel de SSD-uri moral \u00eenvechite, care pot accelera perfect serverul dvs. vechi. La sf\u00e2r\u0219itul tabelului am ad\u0103ugat c\u00e2teva SSD-uri cu interfa\u021b\u0103 PCI-E 3.0 x8. Poate ave\u021bi noroc \u0219i g\u0103si\u021bi ceva la un pre\u021b rezonabil.<\/p>\n<p>Denumire<br \/>\nTB<br \/>\nPBW<br \/>\nPCI-E<br \/>\n4k read iops, K<br \/>\n4k write iops, K<br \/>\ncitire, MB\/s<br \/>\nscriere, MB\/s<\/p>\n<p><noindex><a rel=\"nofollow\" href=\"https:\/\/www.storagereview.com\/fusionio_iodrive2_duo_mlc_application_accelerator_review\">Fusion-io ioDrive II DUO MLC<\/a><\/noindex><br \/>\n2.4<br \/>\n32.5<br \/>\n2.0 x8<br \/>\n480<br \/>\n490<br \/>\n3000<br \/>\n2500<\/p>\n<p><noindex><a rel=\"nofollow\" href=\"https:\/\/www.sandisk.com\/content\/dam\/sandisk-main\/en_us\/assets\/resources\/enterprise\/data-sheets\/fusion-iomemory-sx350-pcie-application-accelerators-datasheet.pdf\">SANDISK FUSION IOMEMORY SX350-1300<\/a><\/noindex><br \/>\n1.3<br \/>\n4<br \/>\n2.0 x8<br \/>\n225<br \/>\n345<br \/>\n2800<br \/>\n1300<\/p>\n<p><noindex><a rel=\"nofollow\" href=\"https:\/\/www.storagereview.com\/fusion_iomemory_px600_review\">SANDISK FUSION IOMEMORY PX600-1300<\/a><\/noindex><br \/>\n1.3<br \/>\n16<br \/>\n2.0 x8<br \/>\n235<br \/>\n375<br \/>\n2700<br \/>\n1700<\/p>\n<p><noindex><a rel=\"nofollow\" href=\"https:\/\/www.sandisk.com\/content\/dam\/sandisk-main\/en_us\/assets\/resources\/enterprise\/data-sheets\/fusion-iomemory-sx350-pcie-application-accelerators-datasheet.pdf\">SANDISK FUSION IOMEMORY SX350-1600<\/a><\/noindex><br \/>\n1.6<br \/>\n5.5<br \/>\n2.0 x8<br \/>\n270<br \/>\n375<br \/>\n2800<br \/>\n1700<\/p>\n<p><noindex><a rel=\"nofollow\" href=\"https:\/\/www.storagereview.com\/fusion_iomemory_sx300_review\">SanDisk Fusion ioMemory SX300-3200<\/a><\/noindex><br \/>\n3.2<br \/>\n11<br \/>\n2.0 x8<br \/>\n345<br \/>\n385<br \/>\n2700<br \/>\n2200<\/p>\n<p><noindex><a rel=\"nofollow\" href=\"https:\/\/www.sandisk.com\/content\/dam\/sandisk-main\/en_us\/assets\/resources\/enterprise\/data-sheets\/fusion-iomemory-sx350-pcie-application-accelerators-datasheet.pdf\">SanDisk Fusion ioMemory SX350-3200<\/a><\/noindex><br \/>\n3.2<br \/>\n11<br \/>\n2.0 x8<br \/>\n345<br \/>\n385<br \/>\n2800<br \/>\n2200<\/p>\n<p><noindex><a rel=\"nofollow\" href=\"https:\/\/www.storagereview.com\/fusion_iomemory_px600_review\">SANDISK FUSION IOMEMORY PX600<\/a><\/noindex><br \/>\n2.6<br \/>\n32<br \/>\n2.0 x8<br \/>\n350<br \/>\n385<br \/>\n2700<br \/>\n2200<\/p>\n<p><noindex><a rel=\"nofollow\" href=\"https:\/\/support.huawei.com\/enterprise\/en\/doc\/EDOC1000052593?section=j005\">Huawei ES3000 V2<\/a><\/noindex><br \/>\n1,6<br \/>\n8,76<br \/>\n2.0 x8<br \/>\n395<br \/>\n270<br \/>\n1550<br \/>\n1100<\/p>\n<p><noindex><a rel=\"nofollow\" href=\"https:\/\/support.huawei.com\/enterprise\/en\/doc\/EDOC1000052593?section=j005\">Huawei ES3000 V2<\/a><\/noindex><br \/>\n3,2<br \/>\n17,52<br \/>\n2.0 x8<br \/>\n770<br \/>\n230<br \/>\n3100<br \/>\n2200<\/p>\n<p><noindex><a rel=\"nofollow\" href=\"https:\/\/www.emc.com\/collateral\/data-sheet\/h11411-xtremsf-ds.pdf\">EMC XtremSF<\/a><\/noindex><br \/>\n2,2<br \/>\n\u00a0<br \/>\n2.0 x8<br \/>\n340<br \/>\n110<br \/>\n2700<br \/>\n1000<\/p>\n<p><noindex><a rel=\"nofollow\" href=\"https:\/\/www.storagereview.com\/virident_flashmax_ii_mlc_application_accelerator_review_22tb\">HGST Virident FlashMAX II<\/a><\/noindex><br \/>\n2,2<br \/>\n33<br \/>\n2.0 x8<br \/>\n350<br \/>\n103<br \/>\n2700<br \/>\n1000<\/p>\n<p><noindex><a rel=\"nofollow\" href=\"https:\/\/documents.westerndigital.com\/\/content\/dam\/doc-library\/en_us\/assets\/public\/western-digital\/product\/hgst\/general-docs\/data-sheet-flashmax-pcie.pdf\">HGST Virident SSD FlashMAX II<\/a><\/noindex><br \/>\n4,8<br \/>\n10.1<br \/>\n2.0 x8<br \/>\n269<br \/>\n51<br \/>\n2600<br \/>\n900<\/p>\n<p><noindex><a rel=\"nofollow\" href=\"https:\/\/documents.westerndigital.com\/\/content\/dam\/doc-library\/en_us\/assets\/public\/western-digital\/product\/hgst\/general-docs\/data-sheet-flashmax-pcie.pdf\">HGST Virident FlashMAX III<\/a><\/noindex><br \/>\n2,2<br \/>\n7.1<br \/>\n2.0 x8<br \/>\n531<br \/>\n59<br \/>\n2700<br \/>\n1400<\/p>\n<p>Dell Micron P420M<br \/>\n1.4<br \/>\n9.2<br \/>\n2.0 x8<br \/>\n750<br \/>\n95<br \/>\n3300<br \/>\n630<\/p>\n<p><noindex><a rel=\"nofollow\" href=\"https:\/\/www.storagereview.com\/micron_p420m_enterprise_pcie_ssd_review\">Micron P420M<\/a><\/noindex><br \/>\n1.4<br \/>\n9.2<br \/>\n2.0 x8<br \/>\n750<br \/>\n95<br \/>\n3300<br \/>\n630<\/p>\n<p><noindex><a rel=\"nofollow\" href=\"https:\/\/www.anandtech.com\/show\/10890\/hgst-ultrastar-sn200-accelerator-768-tb-capacity-61-gbs-read-speed-12m-iops\">HGST SN260<\/a><\/noindex><br \/>\n1.6<br \/>\n25.10<br \/>\n3.0 x8<br \/>\n1200<br \/>\n200<br \/>\n6170<br \/>\n2200<\/p>\n<p><noindex><a rel=\"nofollow\" href=\"https:\/\/www.anandtech.com\/show\/10890\/hgst-ultrastar-sn200-accelerator-768-tb-capacity-61-gbs-read-speed-12m-iops\">HGST SN260<\/a><\/noindex><br \/>\n3,2<br \/>\n17,52<br \/>\n3.0 x8<br \/>\n1200<br \/>\n200<br \/>\n6170<br \/>\n2200<\/p>\n<p><noindex><a rel=\"nofollow\" href=\"https:\/\/ark.intel.com\/content\/www\/ru\/ru\/ark\/products\/88731\/intel-ssd-dc-p3608-series-1-6tb-1-2-height-pcie-3-0-x8-20nm-mlc.html\">Intel P3608<\/a><\/noindex><br \/>\n3,2<br \/>\n17,5<br \/>\n3.0 x8<br \/>\n850<br \/>\n80<br \/>\n4500<br \/>\n2600<\/p>\n<p><noindex><a rel=\"nofollow\" href=\"https:\/\/www.kingston.com\/datasheets\/DCP1000_us.pdf\">Kingston DCP1000<\/a><\/noindex><br \/>\n3,2<br \/>\n2,78<br \/>\n3.0 x8<br \/>\n1000<br \/>\n180<br \/>\n6800<br \/>\n6000<\/p>\n<p><noindex><a rel=\"nofollow\" href=\"https:\/\/docs.oracle.com\/cd\/E65386_01\/html\/E65387\/gokdw.html#scrolltoc\">Oracle F320<\/a><\/noindex><br \/>\n3.2<br \/>\n29<br \/>\n3.0 x8<br \/>\n750<br \/>\n120<br \/>\n5500<br \/>\n1800<\/p>\n<p><noindex><a rel=\"nofollow\" href=\"https:\/\/www.samsung.com\/semiconductor\/global.semi.static\/PM1725_NVMe_PCIe_SSD_Samsung_2016-1.pdf\">Samsung PM1725<\/a><\/noindex><br \/>\n3.2<br \/>\n29<br \/>\n3.0 x8<br \/>\n1000<br \/>\n120<br \/>\n6000<br \/>\n2000<\/p>\n<p><noindex><a rel=\"nofollow\" href=\"https:\/\/www.samsung.com\/semiconductor\/ssd\/enterprise-ssd\/MZPLL3T2HMLS\/\">Samsung PM1725a<\/a><\/noindex><br \/>\n3.2<br \/>\n29<br \/>\n3.0 x8<br \/>\n1000<br \/>\n180<br \/>\n6200<br \/>\n2600<\/p>\n<p><noindex><a rel=\"nofollow\" href=\"https:\/\/www.samsung.com\/semiconductor\/ssd\/enterprise-ssd\/MZPLL3T2HAJQ\/\">Samsung PM1725b<\/a><\/noindex><br \/>\n3.2<br \/>\n18<br \/>\n3.0 x8<br \/>\n980<br \/>\n180<br \/>\n6200<br \/>\n2600<\/p>\n<p>\n<img decoding=\"async\" alt=\"Upgrade-ul subsistemului de stocare al unui server vechi de la PCIe 1.0 la 2.0\" src=\"\/wp-content\/uploads\/2019\/06\/369c72c6f028b915a199e85fc3de3819.jpg\" style=\"display:block;margin: 0 auto;\" \/>Dintre ace\u0219ti SSD-uri, Fusion ioMemory se remarc\u0103. Directorul \u0219tiin\u021bific <noindex><a rel=\"nofollow\" href=\"https:\/\/ru.wikipedia.org\/wiki\/Fusion-io\">Fusion<\/a><\/noindex> a fost <noindex><a rel=\"nofollow\" href=\"https:\/\/ru.wikipedia.org\/wiki\/%D0%92%D0%BE%D0%B7%D0%BD%D1%8F%D0%BA,_%D0%A1%D1%82%D0%B8%D0%B2\">Steve Wozniak<\/a><\/noindex>. Apoi, aceast\u0103 companie a fost cump\u0103rat\u0103 de SanDisk cu 1,2 miliarde de dolari. La vremea respectiv\u0103, pre\u021bul lor era de aproximativ 50.000 dolari pe bucat\u0103. Acum, \u00eens\u0103, pot fi cump\u0103rate pentru c\u00e2teva sute de dolari noi cu capacitate de la 1TB \u0219i mai mult.<\/p>\n<p>Dac\u0103 ne uit\u0103m mai atent la tabel, putem observa c\u0103 au un num\u0103r de IOPS la scriere aproape egal cu num\u0103rul de IOPS la citire. Av\u00e2nd \u00een vedere pre\u021bul lor actual, cred c\u0103 aceste SSD-uri merit\u0103 aten\u021bie. <\/p>\n<p>Adev\u0103rul este c\u0103 au c\u00e2teva particularit\u0103\u021bi:<\/p>\n<ol>\n<li>Nu pot fi bootabile<\/li>\n<li>Este necesar un driver pentru utilizare. Exist\u0103 drivere practic pentru toate, dar pentru ultimele versiuni de Linux va trebui s\u0103 le compilezi.<\/li>\n<li>Dimensiunea optim\u0103 a sectorului este de 4096 bytes. (512 este, de asemenea, acceptat)<\/li>\n<li>Driverul poate consuma o cantitate considerabil\u0103 de RAM \u00een scenarii mai nefavorabile (cu dimensiunea sectorului de 512 bytes)<\/li>\n<li>Viteza de func\u021bionare depinde de viteza procesorului, a\u0219a c\u0103 este mai bine s\u0103 dezactivezi tehnologiile de economisire a energiei. Acesta este un avantaj \u0219i un dezavantaj, deoarece cu un procesor puternic, periphericul poate func\u021biona chiar mai rapid dec\u00e2t este specificat \u00een specifica\u021bii<\/li>\n<li>Necesit\u0103 o bun\u0103 r\u0103cire. Pentru servere, aceasta nu ar trebui s\u0103 fie o problem\u0103.<\/li>\n<li>Nu este recomandat pentru ESXi, deoarece ESXi prefer\u0103 discuri cu sector 512N, ceea ce poate duce la un consum mare de memorie de c\u0103tre driver.<\/li>\n<li>Versiunile branduite ale acestor SSD-uri nu sunt de obicei suportate de furnizori p\u00e2n\u0103 la ultimul driver de la SanDisk (martie 2019)<\/li>\n<\/ol>\n<p>\nAm efectuat teste ale Fusion ioMemory \u00een compara\u021bie cu un SSD server destul de modern Intel P3700 PCI-E 3.0 x8 (acesta din urm\u0103 cost\u00e2nd de aproximativ patru ori mai mult dec\u00e2t Fusion de capacitate similar\u0103). De asemenea, putem observa c\u00e2t de mult scade viteza din cauza magistralei x4.<\/p>\n<p>Fusion PX600 1.3TB PCI-E 2.0 x8<br \/>\nIntel P3700 1.6TB PCI-E 3.0 x4<\/p>\n<p><img decoding=\"async\" alt=\"Upgrade-ul subsistemului de stocare al unui server vechi de la PCIe 1.0 la 2.0\" src=\"\/wp-content\/uploads\/2019\/06\/7157ec6e43cac87fc0cdf5dd2887cfac.jpg\" style=\"display:block;margin: 0 auto;\" \/><br \/>\n<img decoding=\"async\" alt=\"Upgrade-ul subsistemului de stocare al unui server vechi de la PCIe 1.0 la 2.0\" src=\"\/wp-content\/uploads\/2019\/06\/f5db5f37b300332bd787d5b2fe57b67e.jpg\" style=\"display:block;margin: 0 auto;\" \/><\/p>\n<p>\nDa, viteza liniar\u0103 de citire este clar redus\u0103 la Intel P3700. Conform specifica\u021biilor, ar trebui s\u0103 fie 2800 MB\/s, iar cifra noastr\u0103 este de 1469 MB\/s. Totu\u0219i, \u00een general, putem spune c\u0103 pentru magistrala PCI-e 2.0, SSD-urile server PCI-E 3.0 x4 pot fi utilizate, dac\u0103 pot fi ob\u021binute la pre\u021b rezonabil.<\/p>\n<h3>Conclusions<\/h3>\n<p>\nSubstema de stocare a unui server vechi cu magistral\u0103 PCI-E 1.0 sau 2.0 poate fi revigorat\u0103 prin utilizarea SSD-urilor, care pot utiliza 8 linii PCI-E, oferind o l\u0103\u021bime de band\u0103 de p\u00e2n\u0103 la 4GB\/s (PCI-E 2.0) sau 2GB\/s (PCI-E 1.0). Cea mai rentabil\u0103 solu\u021bie este s\u0103 folosi\u021bi SSD-uri PCI-E 2.0, care sunt deja \u00eenvechite moral.<\/p>\n<p>De asemenea, exist\u0103 variante compromis care sunt simple de implementat, legate de achizi\u021bionarea unei licen\u021be CacheCade pentru controlerele LSI sau \u00eenlocuirea controlerului Adaptec cu o versiune Q.<\/p>\n<p>\u0218i un mod foarte simplu este s\u0103 cump\u0103ra\u021bi un controler RAID SATA III pentru a permite SSD-urilor s\u0103 func\u021bioneze la vitez\u0103 maxim\u0103 \u0219i pentru a gestiona tot ceea ce necesit\u0103 rapiditate.<br \/>\n<br \/>Sursa: <a content=\"nofollow\" rel=\"nofollow\" href=\"https:\/\/habr.com\/ru\/post\/454222\/\">habr.com<\/a><\/p>","protected":false,"gt_translate_keys":[{"key":"rendered","format":"html"}]},"excerpt":{"rendered":"<p>\u041f\u043e\u0447\u0435\u043c\u0443 \u0442\u0435\u043c\u043e\u0439 \u0434\u0430\u043d\u043d\u043e\u0439 \u0441\u0442\u0430\u0442\u044c\u0438 \u0432\u044b\u0431\u0440\u0430\u043d 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\u041f\u043e\u0441\u0442\u0430\u0432\u0438\u0442\u044c \u0434\u043e\u043f\u043e\u043b\u043d\u0438\u0442\u0435\u043b\u044c\u043d\u044b\u0439 \u043f\u0440\u043e\u0446\u0435\u0441\u0441\u043e\u0440(\u044b) \u0438\u043b\u0438 \u0437\u0430\u043c\u0435\u043d\u0438\u0442\u044c \u043e\u0431\u0430 \u043f\u0440\u043e\u0446\u0435\u0441\u0441\u043e\u0440\u0430 \u043d\u0430 \u043c\u0430\u043a\u0441\u0438\u043c\u0430\u043b\u044c\u043d\u043e \u043f\u0440\u043e\u0438\u0437\u0432\u043e\u0434\u0438\u0442\u0435\u043b\u044c\u043d\u044b\u0435 \u0432\u0435\u0440\u0441\u0438\u0438 \u043f\u043e\u0434\u0434\u0435\u0440\u0436\u0438\u0432\u0430\u0435\u043c\u044b\u0435 \u0441\u043e\u043a\u0435\u0442\u0430\u043c\u0438 \u0441\u0435\u0440\u0432\u0435\u0440\u0430. \u0414\u043b\u044f \u0441\u0442\u0430\u0440\u044b\u0445 \u0441\u0435\u0440\u0432\u0435\u0440\u043e\u0432, \u0447\u0442\u043e \u043f\u0430\u043c\u044f\u0442\u044c, \u043f\u0440\u043e\u0446\u0435\u0441\u0441\u043e\u0440\u044b, \u043a\u0430\u043a [&hellip;]<\/p>\n","protected":false,"gt_translate_keys":[{"key":"rendered","format":"html"}]},"author":1,"featured_media":26262,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[688],"tags":[],"class_list":["post-34884","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-administrirovanie"],"aioseo_notices":[],"aioseo_head":"\n\t\t<!-- All in One SEO 5.0.2.1 - aioseo.com -->\n\t<meta name=\"robots\" content=\"max-image-preview:large\" \/>\n\t<meta name=\"author\" content=\"Yuri Gagarin\"\/>\n\t<link rel=\"canonical\" href=\"https:\/\/prohoster.info\/ro\/blog\/administrirovanie\/upgrade-diskovoj-podsistemy-starogo-servera-s-shinoj-pcie-1-0-2-0\" \/>\n\t<meta name=\"generator\" content=\"All in One SEO (AIOSEO) 5.0.2.1\" \/>\n\t\t<meta property=\"og:locale\" content=\"ro_RO\" \/>\n\t\t<meta property=\"og:site_name\" content=\"ProHoster | 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