{"id":31230,"date":"2019-10-31T21:40:10","date_gmt":"2019-10-31T18:40:10","guid":{"rendered":"https:\/\/prohoster.info\/blog\/rekomendatsii-po-nastrojke-afa-accelstor-pri-rabote-s-vmware-vsphere\/"},"modified":"2019-10-31T21:40:10","modified_gmt":"2019-10-31T18:40:10","slug":"rekomendatsii-po-nastrojke-afa-accelstor-pri-rabote-s-vmware-vsphere","status":"publish","type":"post","link":"https:\/\/prohoster.info\/et\/blog\/administrirovanie\/rekomendatsii-po-nastrojke-afa-accelstor-pri-rabote-s-vmware-vsphere","title":{"rendered":"AFA AccelStor seadistuse soovitused VMware vSphere'is","gt_translate_keys":[{"key":"rendered","format":"text"}]},"content":{"rendered":"<p>Selles artiklis tahaksime r\u00e4\u00e4kida AccelStori All Flash-massiivide t\u00f6\u00f6tamise omadustest \u00fche populaarsema virtualiseerimisplatvormi \u2013 VMware vSphere \u2013 kontekstis. Eelk\u00f5ige r\u00f5hutame neid parameetreid, mis aitavad saavutada maksimaalset efektiivsust sellise v\u00f5imsa t\u00f6\u00f6riista nagu All Flash kasutamisel. <\/p>\n<p><\/p>\n<p><img decoding=\"async\" alt=\"AFA AccelStor seadistuse soovitused VMware vSphere&#039;is\" src=\"\/wp-content\/uploads\/2019\/04\/177f44f7e1c5f30c8c072af86b4f9999.jpg\" style=\"display:block;margin: 0 auto;\" \/><noindex><a rel=\"nofollow\" name=\"habracut\"><\/a><\/noindex><\/p>\n<p>AccelStor NeoSapphire\u2122 All Flash massiivid on <noindex><a rel=\"nofollow\" href=\"http:\/\/accelstor.ru\/page\/professional-models\">\u00fche<\/a><\/noindex> v\u00f5i <noindex><a rel=\"nofollow\" href=\"http:\/\/accelstor.ru\/page\/modeli-vysokoj-dostupnosti-ha\">kahe<\/a><\/noindex> nodiga seadmed, mis p\u00f5hinevad SSD-draividel ja rakendavad andmete salvestamise ning neile juurdep\u00e4\u00e4su organiseerimise osas t\u00e4iesti erinevat l\u00e4henemist, kasutades oma tehnoloogiat <noindex><a rel=\"nofollow\" href=\"http:\/\/accelstor.ru\/page\/flexiremap-technology\">FlexiRemap\u00ae<\/a><\/noindex> asemel v\u00e4ga levinud RAID-algoritme. Massiivid pakuvad hostidele blokeeritud juurdep\u00e4\u00e4su Fibre Channel'i v\u00f5i iSCSI liideste kaudu. \u00d5igluse huvides m\u00e4rkime, et iSCSI liidese mudelid pakuvad ka failip\u00f5hist ligip\u00e4\u00e4su meeldiva boonuse n\u00e4ol. Kuid k\u00e4esolevas artiklis keskendume blokaadi protokollide kasutamisele, kuna need on All Flash jaoks k\u00f5ige t\u00f5husamad.<\/p>\n<p><\/p>\n<p>AccelStor'i ja VMware vSphere'i virtuaaliseerimiss\u00fcsteemi \u00fchise t\u00f6\u00f6 k\u00e4ivitamise ja seadistamise kogu protsessi v\u00f5ib jagada mitmeks etapiks:<\/p>\n<p><\/p>\n<ul>\n<li>\u00dchendustopoloogia rakendamine ja SAN-v\u00f5rgu seadistamine;<\/li>\n<li>All Flash-massiivi seadistamine;<\/li>\n<li>ESXi hostide seadistamine;<\/li>\n<li>Virtuaalmasinate seadistamine.<\/li>\n<\/ul>\n<p><\/p>\n<p>N\u00e4idishardware'ina kasutati AccelStor NeoSapphire\u2122 massiive, millel on Fibre Channel ja iSCSI liidesed. P\u00f5hioso p\u00f5hjana kasutati VMware vSphere 6.7U1.<\/p>\n<p><\/p>\n<p>Enne artiklis kirjeldatud s\u00fcsteemide k\u00e4ivitamist on tungivalt soovitatav tutvuda VMware'i dokumentatsiooniga, mis k\u00e4sitleb j\u00f5udlusk\u00fcsimusi (<noindex><a rel=\"nofollow\" href=\"https:\/\/www.vmware.com\/content\/dam\/digitalmarketing\/vmware\/en\/pdf\/techpaper\/performance\/vsphere-esxi-vcenter-server-67-performance-best-practices.pdf\">Performance Best Practices for VMware vSphere 6.7<\/a><\/noindex> ) ja iSCSI seadistusi (<noindex>Best Practices For Running VMware vSphere On iSCSI<\/noindex>)<\/p>\n<p><\/p>\n<h3><i><b>\u00dchendustopoloogia ja SAN-v\u00f5rgu seadistamine<\/b><\/i><\/h3>\n<p><\/p>\n<p>SAN-v\u00f5rgu peamised komponendid on HBA-adapterid ESXi hostides, SAN-l\u00fclitid ja massiivi nodid. T\u00fc\u00fcpiline sellise v\u00f5rgu topoloogia n\u00e4eb v\u00e4lja j\u00e4rgmine:<\/p>\n<p><\/p>\n<p><img decoding=\"async\" alt=\"AFA AccelStor seadistuse soovitused VMware vSphere&#039;is\" src=\"\/wp-content\/uploads\/2019\/04\/0fa8f428d3120b551747e21d43d9095d.jpg\" style=\"display:block;margin: 0 auto;\" \/><\/p>\n<p>Termin Switch viitab nii eraldi f\u00fc\u00fcsilisele l\u00fclitile v\u00f5i l\u00fclitite kogumile (Fabric) kui ka seadmele, mida jagatakse erinevate teenuste vahel (VSAN Fibre Channel'i puhul ja VLAN iSCSI puhul). Kaks s\u00f5ltumatut l\u00fclitit\/Fabric'i kasutamine v\u00e4listab v\u00f5imaliku riketeetme.<\/p>\n<p><\/p>\n<p>Kuigi hostide otse\u00fchendus massiiviga on toetatud, ei soovitata seda tungivalt. All Flash massiivide j\u00f5udlus on piisavalt k\u00f5rge ja maksimaalse kiirus saavutamiseks tuleks kasutada k\u00f5iki massiivi porte. Seet\u00f5ttu on v\u00e4hemalt \u00fche l\u00fcliti olemasolu hostide ja NeoSapphire\u2122 vahel kohustuslik.<\/p>\n<p><\/p>\n<p>Kahe pordi olemasolu hosti HBA-s on samuti kohustuslik n\u00f5ue maksimaalse j\u00f5udluse saavutamiseks ja t\u00f5rgeteta t\u00f6\u00f6 tagamiseks.<\/p>\n<p><\/p>\n<p>Kui kasutatakse Fibre Channel'i liidest, on vajalik tsoonimise seadistamine, et v\u00e4ltida v\u00f5imalikke kokkup\u00f5rkeid algatajate ja sihtpunktide vahel. Tsoonid on ehitatud p\u00f5him\u00f5ttel \"\u00fcks algataja port - \u00fcks v\u00f5i mitu massiivi porti.\"<\/p>\n<p><\/p>\n<p>Kui iSCSI \u00fchendust kasutatakse \u00fchisel l\u00f5pp-punktide l\u00fclitil, on kindlasti vajalik iSCSI liikluse isoleerimine eraldi VLAN-is. Soovitav on ka lubada Jumbo Frame'i tugi (MTU = 9000), et suurendada pakettide suurust v\u00f5rgus ja seel\u00e4bi v\u00e4hendada edastamise k\u00e4igus kasutatavat haldusinformatsiooni. Kuid tuleb meeles pidada, et korrektseks toimimiseks on vajalik muuta MTU parameeter k\u00f5igis v\u00f5rgu komponentides ahelas \u00abalgataja-l\u00fcliti-siht\u00bb.<\/p>\n<p><\/p>\n<h3><i><b>All Flash m\u00e4luriba seadistamine<\/b><\/i><\/h3>\n<p><\/p>\n<p>M\u00e4lu tarnitakse klientidele juba loodud gruppidega <noindex><a rel=\"nofollow\" href=\"http:\/\/accelstor.ru\/page\/flexiremap-technology\">FlexiRemap\u00ae<\/a><\/noindex>. Seega ei ole vaja v\u00f5tta mingeid meetmeid andurite \u00fchendamiseks \u00fchiseks struktuuriks. Piisab vaid vajaliku suurusega ja vajaliku arvu mahutite loomist.<\/p>\n<p><\/p>\n<p><noindex><a rel=\"nofollow\" href=\"https:\/\/habrastorage.org\/webt\/zn\/x9\/nc\/znx9ncuyd2rgm8-jfvwf620zaqg.png\"><img decoding=\"async\" alt=\"AFA AccelStor seadistuse soovitused VMware vSphere&#039;is\" src=\"\/wp-content\/uploads\/2019\/04\/d09f9847203773280bc605be1c8fbc67.jpg\" style=\"display:block;margin: 0 auto;\" \/><\/a><\/noindex><br \/>\n<noindex><a rel=\"nofollow\" href=\"https:\/\/habrastorage.org\/webt\/wx\/8l\/ua\/wx8lualewtdkixfwg0petpxbsre.png\"><img decoding=\"async\" alt=\"AFA AccelStor seadistuse soovitused VMware vSphere&#039;is\" src=\"\/wp-content\/uploads\/2019\/04\/ddcdaeb16263f79536db68f9c6ae2cff.jpg\" style=\"display:block;margin: 0 auto;\" \/><\/a><\/noindex><\/p>\n<p><\/p>\n<p>Kasutusmugavuse huvides on olemas funktsioon partii loomise jaoks, et luua korraga mitu m\u00e4\u00e4ratud mahut. Vaikimisi luuakse \"\u00f5hukesed\" mahud, kuna see v\u00f5imaldab t\u00f5husamalt kasutada saadavat salvestusruumi (sh Space Reclamation toetuse kaudu). J\u00f5udluse osas on erinevus \"\u00f5hukeste\" ja \"paksude\" mahutite vahel alla 1%. Siiski, kui on vaja v\u00e4lja pigistada k\u00f5ik, mida maht suudab, saab alati konverteerida mis tahes \"\u00f5hukese\" mahut \"paksuks\". Tuleb siiski meeles pidada, et see operatsioon on p\u00f6\u00f6rdumatu.<\/p>\n<p><\/p>\n<p>J\u00e4rgmine samm on luua loodud mahud avalikuks ja m\u00e4\u00e4rata juurdep\u00e4\u00e4su\u00f5igused nendele k\u00fclaliste poolt ACL (iSCSI jaoks IP-aadressid ja FC jaoks WWPN) ja f\u00fc\u00fcsilise portide eraldamise kaudu. iSCSI mudelite puhul toimub see l\u00e4bi Targeti loomise.<\/p>\n<p><\/p>\n<p><noindex><a rel=\"nofollow\" href=\"https:\/\/habrastorage.org\/webt\/mw\/8y\/cg\/mw8ycgqngghoyuelortgysofswi.png\"><img decoding=\"async\" alt=\"AFA AccelStor seadistuse soovitused VMware vSphere&#039;is\" src=\"\/wp-content\/uploads\/2019\/04\/942d7ec437ad802ef828afa91bcde1f8.jpg\" style=\"display:block;margin: 0 auto;\" \/><\/a><\/noindex><br \/>\n<noindex><a rel=\"nofollow\" href=\"https:\/\/habrastorage.org\/webt\/py\/xe\/28\/pyxe28gnrsxh_cx4ltjleogwsmw.png\"><img decoding=\"async\" alt=\"AFA AccelStor seadistuse soovitused VMware vSphere&#039;is\" src=\"\/wp-content\/uploads\/2019\/04\/f92d329b691d7b17380974253c8572ce.jpg\" style=\"display:block;margin: 0 auto;\" \/><\/a><\/noindex><\/p>\n<p><\/p>\n<p>FC mudelite puhul toimub publikatsioon LUNi loomise kaudu iga massiivi pordi jaoks.<\/p>\n<p><\/p>\n<p><noindex><a rel=\"nofollow\" href=\"https:\/\/habrastorage.org\/webt\/qh\/u3\/bx\/qhu3bxhm-kqinygguz298izbw7e.png\"><img decoding=\"async\" alt=\"AFA AccelStor seadistuse soovitused VMware vSphere&#039;is\" src=\"\/wp-content\/uploads\/2019\/04\/554aef268d6b18069edd3531b2429db5.jpg\" style=\"display:block;margin: 0 auto;\" \/><\/a><\/noindex><br \/>\n<noindex><a rel=\"nofollow\" href=\"https:\/\/habrastorage.org\/webt\/oh\/al\/ey\/ohaleyllpb-0bmot9kawc4-ssyg.png\"><img decoding=\"async\" alt=\"AFA AccelStor seadistuse soovitused VMware vSphere&#039;is\" src=\"\/wp-content\/uploads\/2019\/04\/a770a4d3e6090c5bfaab3dad5487ee5a.jpg\" style=\"display:block;margin: 0 auto;\" \/><\/a><\/noindex><\/p>\n<p><\/p>\n<p>Hostide seadistuse kiirendamiseks on v\u00f5imalik neid gruppidesse liita. Kui hostis kasutatakse mitmeportilist FC HBA-d (mis praktikas on k\u00f5ige sagedasem juhtum), tuvastab s\u00fcsteem automaatselt, et sellise HBA portide WWPN-id erinevad \u00fcksteisest vaid \u00fche numbriga, mist\u00f5ttu need kuuluvad samale hostile. Samuti toetavad m\u00f5lemad liidesed Target\/LUN r\u00fchmituste loomist.<\/p>\n<p><\/p>\n<p>Oluline m\u00e4rkida iSCSI liidese kasutamisel on luua mahtude jaoks koheselt mitu sihtm\u00e4rki, et suurendada j\u00f5udlust, kuna sihtm\u00e4rgi j\u00e4rjekordi ei saa muuta ning see kujuneb tegelikult kitsaskohaks.<\/p>\n<p><\/p>\n<p><b><i><\/p>\n<h3>ESXi hostide seadistamine<\/h3>\n<p><\/i><\/b><\/p>\n<p><\/p>\n<p>ESXi hostide poolt toimub p\u00f5hiseadistus t\u00e4iesti oodatud stsenaariumi j\u00e4rgi. iSCSI \u00fchenduse loomise j\u00e4rjekord on j\u00e4rgmine:<\/p>\n<p><\/p>\n<ol>\n<li>Lisada Software iSCSI Adapter (ei ole vajalik, kui see on juba lisatud, v\u00f5i kui kasutatakse Hardware iSCSI Adapterit);<\/li>\n<li>Loodud vSwitch, mille kaudu kulgeb iSCSI liiklus, ja f\u00fc\u00fcsiliste uplinkide ning VMkernali lisamine sellesse;<\/li>\n<li>Lisada Dynamic Discovery kaudu mahamisadresse;<\/li>\n<li>Loodud Datastore<\/li>\n<\/ol>\n<p><\/p>\n<p><b>M\u00f5ned olulised m\u00e4rkused:<\/b><\/p>\n<p><\/p>\n<blockquote>\n<ul>\n<li>\u00dcldiselt on v\u00f5imalik kasutada ka olemasolevat vSwitchi, kuid eraldi vSwitchi korral on hosti seadistuste haldamine oluliselt lihtsam.<\/li>\n<li>Management liiklus ja iSCSI tuleb eraldada erinevatele f\u00fc\u00fcsilistele linkidele ja\/v\u00f5i VLANidele, et v\u00e4ltida j\u00f5udlusprobleeme.<\/li>\n<li>VMkernel'i IP-aadressid ja vastavad All Flash mahtude portide aadressid peavad kuuluma sama alav\u00f5rku, j\u00e4lle j\u00f5udlusprobleemide t\u00f5ttu.<\/li>\n<li>VMware'i eeskirjade kohaselt peab vSwitchil olema v\u00e4hemalt kaks f\u00fc\u00fcsilist uplinki, et tagada t\u00f6\u00f6kindlus.<\/li>\n<li>Jumbo Frame'ide kasutamise korral tuleb MTU muuta nii vSwitchis kui ka VMkernel'is.<\/li>\n<li>Oluline on meenutada, et VMware'i soovituste kohaselt peab iSCSI liikluseks kasutatavatele f\u00fc\u00fcsilistele adapteritele olema h\u00e4\u00e4lestatud Teaming and Failover. Iga VMkernel peab t\u00f6\u00f6tama ainult l\u00e4bi \u00fche uplinki; teine uplink tuleb seada unused re\u017eiimi. T\u00f6\u00f6kindluse tagamiseks tuleb lisada kaks VMkernel'it, millest iga\u00fcks t\u00f6\u00f6tab oma uplinki kaudu.<\/li>\n<\/ul>\n<p>\n<\/p><\/blockquote>\n<p><noindex><a rel=\"nofollow\" href=\"https:\/\/habrastorage.org\/webt\/_h\/jb\/va\/_hjbvatnuhjwts4duy2epgb7bbi.png\"><img decoding=\"async\" alt=\"AFA AccelStor seadistuse soovitused VMware vSphere&#039;is\" src=\"\/wp-content\/uploads\/2019\/04\/b769fa87aa8552ed6dd775f9f9dcb1b5.jpg\" style=\"display:block;margin: 0 auto;\" \/><\/a><\/noindex><\/p>\n<p><\/p>\n<p>VMkernel Adapter (vmk#)<br \/>\nF\u00fc\u00fcsiline V\u00f5rguaadapter (vmnic#)<\/p>\n<p>vmk1 (Storage01)<br \/>\nAktiivsed adapterid<br \/>\nvmnic2<br \/>\nKasutamata adapterid<br \/>\nvmnic3<\/p>\n<p>vmk2 (Storage02)<br \/>\nAktiivsed adapterid<br \/>\nvmnic3<br \/>\nKasutamata adapterid<br \/>\nvmnic2<\/p>\n<p>Fibre Channeli kaudu \u00fchendamiseks ei ole eelnevaid toiminguid vaja. Saate kohe luua Datastore'i.<\/p>\n<p><\/p>\n<p>P\u00e4rast Datastore'i loomist veenduge, et Target\/LUN teed kasutavad Round Robin poliitikat, et saavutada parim j\u00f5udlus.<\/p>\n<p><\/p>\n<p><noindex><a rel=\"nofollow\" href=\"https:\/\/habrastorage.org\/webt\/zh\/zr\/t1\/zhzrt15baoc1qlp0w6ds-mys3hu.png\"><img decoding=\"async\" alt=\"AFA AccelStor seadistuse soovitused VMware vSphere&#039;is\" src=\"\/wp-content\/uploads\/2019\/04\/621474aa13123cd44518b263f222e6b5.jpg\" style=\"display:block;margin: 0 auto;\" \/><\/a><\/noindex><\/p>\n<p><\/p>\n<p>Vaikimisi seab VMware selle poliitika j\u00e4rgima skeemi: 1000 p\u00e4ringut esimese tee kaudu, j\u00e4rgmised 1000 p\u00e4ringut teise tee kaudu jne. Selline hosti suhtlemine kaheastmelise salvestusseadmaga on tasakaalustamata. Seet\u00f5ttu soovitame seada Round Robin poliitika = 1 Esxcli\/PowerCLI kaudu.<\/p>\n<p>\n<b class=\"spoiler_title\">Parameetrid<\/b><\/p>\n<p>Esxcli jaoks:<\/p>\n<p><\/p>\n<ul>\n<li>Kuva saadaval LUN-id<\/li>\n<\/ul>\n<p><\/p>\n<p><b>esxcli storage nmp device list<\/b><\/p>\n<p><\/p>\n<ul>\n<li>Kopeeri seadme nimi<\/li>\n<li>Muutke Round Robin poliitikat<\/li>\n<\/ul>\n<p><\/p>\n<p><b>esxcli storage nmp psp roundrobin deviceconfig set --type=iops --iops=1 --device=\"Device_ID\"<\/b><\/p>\n<p><\/p>\n<p>Enamik t\u00e4nap\u00e4evasi rakendusi on loodud suurte andmepakettide vahetamiseks, et maksimeerida ribalaiuse kasutust ja v\u00e4hendada keskse protsessori koormust. Seet\u00f5ttu edastab ESXi vaikimisi sisendi\/v\u00e4ljundi p\u00e4ringud salvestusseadmele kogustes kuni 32767 KB. Siiski on v\u00e4ikeste koguste vahetamine m\u00f5nel juhul efektiivsem. AccelStori maatriksite puhul on need stsenaariumid:<\/p>\n<p><\/p>\n<ul>\n<li>Virtuaalne masin kasutab UEFI-d Legacy BIOS-i asemel<\/li>\n<li>Kasutatakse vSphere Replikatsiooni<\/li>\n<\/ul>\n<p><\/p>\n<p>Sellistes stsenaariumides on soovitatav muuta parameetrit Disk.DiskMaxIOSize v\u00e4\u00e4rtusele 4096.<\/p>\n<p><\/p>\n<p><noindex><a rel=\"nofollow\" href=\"https:\/\/habrastorage.org\/webt\/1g\/et\/3g\/1get3g8odkem1onrpkwjdilbnsi.png\"><img decoding=\"async\" alt=\"AFA AccelStor seadistuse soovitused VMware vSphere&#039;is\" src=\"\/wp-content\/uploads\/2019\/04\/f7072bb572580d9bd6077afab8c272ba.jpg\" style=\"display:block;margin: 0 auto;\" \/><\/a><\/noindex><\/p>\n<p><\/p>\n<p>iSCSI \u00fchenduste puhul on soovitatav muuta parameetrit Login Timeout v\u00e4\u00e4rtusele 30 (vaikeline 5), et suurendada \u00fchenduse stabiilsust ja v\u00e4lja l\u00fclitada edasil\u00fckatud kinnituse edastamise pakettide DelayedAck. M\u00f5lemad valikud asuvad vSphere klienti: Host \u2192 Configure \u2192 Storage \u2192 Storage Adapters \u2192 Advanced Options iSCSI adapteri jaoks.<\/p>\n<p><\/p>\n<p><noindex><a rel=\"nofollow\" href=\"https:\/\/habrastorage.org\/webt\/1y\/5_\/c8\/1y5_c80zsijgqtngo-9vt2zbbo8.png\"><img decoding=\"async\" alt=\"AFA AccelStor seadistuse soovitused VMware vSphere&#039;is\" src=\"\/wp-content\/uploads\/2019\/04\/e9700594d0074b5439dbb397c081dd48.jpg\" style=\"display:block;margin: 0 auto;\" \/><\/a><\/noindex><br \/>\n<noindex><a rel=\"nofollow\" href=\"https:\/\/habrastorage.org\/webt\/bh\/yi\/tv\/bhyitvuujofnioaunwhzypx3fe0.png\"><img decoding=\"async\" alt=\"AFA AccelStor seadistuse soovitused VMware vSphere&#039;is\" src=\"\/wp-content\/uploads\/2019\/04\/c2dd6f3aaa6c0648763f66a94af2c251.jpg\" style=\"display:block;margin: 0 auto;\" \/><\/a><\/noindex><\/p>\n<p><\/p>\n<p>Datastore'i jaoks kasutatavate mahu arv on piisavalt delikaatne teema. Loomulikult on soov luua \u00fcks suur maht kogu salvestusruumi jaoks, et lihtsustada haldamist. Siiski, mitme mahu ja seega ka datastore'i olemasolu m\u00f5jutab positiivselt \u00fcldist j\u00f5udlust (r\u00e4simiste kohta allpool rohkem). Seet\u00f5ttu soovitame luua v\u00e4hemalt kaks mahtu.<\/p>\n<p><\/p>\n<p>Veel suhteliselt hiljuti soovitas VMware piirata virtuaalmasinate arvu \u00fche datastore'i peal, et saavutada maksimaalne j\u00f5udlus. Kuid n\u00fc\u00fcd, eriti VDI levimisega, ei ole see probleem enam nii terav. Kuid see ei t\u00fchista vana reeglit \u2014 jaotada I\/O intensiivsust n\u00f5udvad virtuaalmasinad erinevatele datastore'idele. Optimaalse arvu virtuaalmasinate m\u00e4\u00e4ramiseks \u00fche mahu peal pole paremat viisi kui l\u00e4bi viia <noindex><a rel=\"nofollow\" href=\"http:\/\/accelstor.ru\/page\/zaprosit-demo\">AccelStori All Flash massi koormustestimist <\/a><\/noindex>oma infrastruktuuri raames.<\/p>\n<p><\/p>\n<h3><i><b>Virtuaalmasinate seadistamine<\/b><\/i><\/h3>\n<p><\/p>\n<p>Virtuaalmasinate seadistamisel ei ole erilisi n\u00f5udeid, pigem on need tavalised:<\/p>\n<p><\/p>\n<ul>\n<li>Kasuta maksimaalselt \u00fchilduvat VM versiooni<\/li>\n<li>Oluline on olla ettevaatlik, m\u00e4\u00e4rates RAM-i suurust tihedalt paiknevate virtuaalmasinate puhul, n\u00e4iteks VDI-s (sest vaikimisi k\u00e4ivitamisel luuakse vahetusfail, mis on RAM-i suurusega, mis kulutab kasulikku mahtu ja m\u00f5jutab l\u00f5pptulemust)<\/li>\n<li>Kasutage IO osas k\u00f5ige tootlikumaid adapteriversioone: v\u00f5rgu t\u00fc\u00fcp VMXNET 3 ja SCSI t\u00fc\u00fcp PVSCSI<\/li>\n<li>Kasutage maksimaalse j\u00f5udluse tagamiseks Thick Provision Eager Zeroed ketast ja Thin Provisioningut, et maksimaalselt efektiivselt ruumi kasutada<\/li>\n<li>Vajadusel piirake mitte-kriitiliste masinate t\u00f6\u00f6d, kasutades Virtual Disk Limiti<\/li>\n<li>VMware Tools tuleb kindlasti installida <\/li>\n<\/ul>\n<p><\/p>\n<h3><i><b>K\u00e4sside m\u00e4rkused<\/b><\/i><\/h3>\n<p><\/p>\n<p>Oote (v\u00f5i Outstanding I\/O-d) on sisendi\/v\u00e4ljundi (SCSI k\u00e4skude) p\u00e4ringute arv, mis ootavad t\u00f6\u00f6tlemist igal hetkel konkreetses seadmes\/rakenduses. Oote \u00fcletamisel antakse QFULL viga, mis v\u00e4ljendub latency t\u00f5usus. Diskip\u00f5histe (spindle) salvestuss\u00fcsteemide korral kehtib teoreetiliselt, et mida k\u00f5rgem on oote, seda parem on nende j\u00f5udlus. Siiski ei tasu sellega liialdada, kuna on kerge sattuda QFULL-ile. All Flash s\u00fcsteemide puhul on olukord m\u00f5nev\u00f5rra lihtsam: m\u00e4luriba latentsus on korrutades tunduvalt madalam ja seet\u00f5ttu ei ole sageli vaja eraldi oote suurust reguleerida. Kuid teiselt poolt, teatud kasutusstsenaariumides (konkreetsete virtuaalmasinate IO n\u00f5udmiste tugev tasakaalutus, maksimaalse j\u00f5udluse testimine jne) v\u00f5ib olla vajalik, kui mitte muuda ooteparameetreid, siis v\u00e4hemalt m\u00f5ista, milliseid n\u00e4itajaid on v\u00f5imalik saavutada ja, mis k\u00f5ige t\u00e4htsam, milliseid teid pidi.<\/p>\n<p><\/p>\n<p>AccelStor All Flash s\u00fcsteemil ei ole mahtude v\u00f5i sisend\/v\u00e4ljundportide osas mingeid piiranguid. Vajadusel v\u00f5ib isegi \u00fcksik maht saada k\u00f5ik ressursid s\u00fcsteemist. Ainus piirang seab iSCSI sihtpunktidele. Just seet\u00f5ttu oli varem vajalik luua mitu (ideaalis kuni 8) sihtpunkti iga mahu jaoks, et seda piirangut \u00fcletada. Kordame veel, et AccelStori s\u00fcsteemid on v\u00e4ga t\u00f5husad lahendused. Seet\u00f5ttu tuleks kasutada k\u00f5iki s\u00fcsteemi liidese porte maksimaalse kiiruseni j\u00f5udmiseks.<\/p>\n<p><\/p>\n<p>ESXi hosti k\u00fcljest on olukord t\u00e4iesti teine. Ise host rakendab v\u00f5rdsuse p\u00f5him\u00f5tet ressursside juurdep\u00e4\u00e4suks k\u00f5igile osalistele. Seet\u00f5ttu on olemas eraldi IO j\u00e4rjekorrad k\u00fclghanje ja HBA jaoks. K\u00fclghanje j\u00e4rjekorrad kombineeritakse virtuaalse SCSI adapteri ja virtuaalse ketta j\u00e4rjekordadest:<\/p>\n<p><\/p>\n<p><img decoding=\"async\" alt=\"AFA AccelStor seadistuse soovitused VMware vSphere&#039;is\" src=\"\/wp-content\/uploads\/2019\/04\/e6033427e6f554490c9a6460574b7f6e.jpg\" style=\"display:block;margin: 0 auto;\" \/><\/p>\n<p>HBA j\u00e4rjekord s\u00f5ltub konkreetsest t\u00fc\u00fcbist\/tootjast:<\/p>\n<p><\/p>\n<p><img decoding=\"async\" alt=\"AFA AccelStor seadistuse soovitused VMware vSphere&#039;is\" src=\"\/wp-content\/uploads\/2019\/04\/a0b078e63bdf8f306a25bfecd1310cb0.jpg\" style=\"display:block;margin: 0 auto;\" \/><\/p>\n<p>Virtuaalmasina l\u00f5plik j\u00f5udlus m\u00e4\u00e4ratakse hosti komponentide madalaima j\u00e4rjekorra (Queue Depth limit) v\u00e4\u00e4rtuse j\u00e4rgi. <\/p>\n<p><\/p>\n<p>Nende v\u00e4\u00e4rtuste abil saab hinnata j\u00f5udluse n\u00e4itajaid, mida saame erinevates konfiguratsioonides saavutada. N\u00e4iteks tahame teada teoreetilist j\u00f5udlust virtuaalmasinal (ilma talituse s\u00f5ltumata) latentsusega 0,5 ms. Siis on selle IOPS = (1,000\/latency) * Outstanding I\/Os (Queue Depth limit)<\/p>\n<p>\n<b class=\"spoiler_title\">N\u00e4ited<\/b><\/p>\n<p><b>N\u00e4ide 1<\/b><\/p>\n<p><\/p>\n<ul>\n<li>FC Emulex HBA adapter<\/li>\n<li>\u00dcks VM andmebaasis<\/li>\n<li>VMware Paravirtual SCSI adapter<\/li>\n<\/ul>\n<p><\/p>\n<p>Siin m\u00e4\u00e4rab Queue Depth limit Emulex HBA. Seet\u00f5ttu on IOPS = (1000\/0.5)*32 = 64K<\/p>\n<p><\/p>\n<p><b>N\u00e4ide 2<\/b><\/p>\n<p><\/p>\n<ul>\n<li>VMware iSCSI tarkvara adapter<\/li>\n<li>\u00dcks VM andmebaasis<\/li>\n<li>VMware Paravirtual SCSI adapter<\/li>\n<\/ul>\n<p><\/p>\n<p>Siin m\u00e4\u00e4rab Queue Depth limit juba Paravirtual SCSI adapter. Seet\u00f5ttu on IOPS = (1000\/0.5)*64 = 128K<\/p>\n<p><\/p>\n<p>AccelStori tippmudelid, k\u00f5ik Flash andmem\u00e4lud (n\u00e4iteks, <noindex><a rel=\"nofollow\" href=\"http:\/\/accelstor.ru\/product\/neosapphire-p710\">P710<\/a><\/noindex>) suudavad tagada kirjutamise j\u00f5udluse 700K IOPS 4K plokiga. Sellise ploki suuruse puhul on t\u00e4iesti ilmne, et \u00fcksnes virtuaalmasin ei suuda sellist andmem\u00e4lu koormata. Selleks on vaja 11 (n\u00e4iteks 1) v\u00f5i 6 (n\u00e4iteks 2) virtuaalmasinat.<\/p>\n<p><\/p>\n<p>Seega, kui k\u00f5ik kirjeldatud virtuaalse andmekeskuse komponendid on \u00f5igesti seadistatud, on v\u00f5imalik saavutada v\u00e4ga muljetavaldavaid tulemusi j\u00f5udluse osas.<\/p>\n<p><\/p>\n<p><img decoding=\"async\" alt=\"AFA AccelStor seadistuse soovitused VMware vSphere&#039;is\" src=\"\/wp-content\/uploads\/2019\/04\/eee93cccf16539410695c6f79d94deda.jpg\" style=\"display:block;margin: 0 auto;\" \/><\/p>\n<p><i>4K Random, 70% lugemine\/30% kirjutamine<\/i><\/p>\n<p><\/p>\n<p>Tegelikult on reaalne maailm palju keerulisem, et seda kirjeldada lihtsa valemiga. \u00dchel serveril asub alati hulk virtuaalmasinaid erinevate konfigureerimiste ja IO-n\u00f5uetega. Samuti tegeleb sisendi\/v\u00e4ljundi t\u00f6\u00f6tlemisega hosti protsessor, mille j\u00f5udlus ei ole l\u00f5pmatu. Seega, et avada sama <noindex><a rel=\"nofollow\" href=\"http:\/\/accelstor.ru\/product\/neosapphire-p710\">mudeli P710<\/a><\/noindex> reaalsuses on vaja v\u00e4hemalt kolme hosti. Lisaks toovad virtuaalmasinates t\u00f6\u00f6tavad rakendused oma p\u00e4ringud. Seet\u00f5ttu pakume t\u00e4psete m\u00f5\u00f5tmete m\u00e4\u00e4ramiseks <noindex><a rel=\"nofollow\" href=\"http:\/\/accelstor.ru\/page\/zaprosit-demo\">kasutada testmudelite kontrollimist<\/a><\/noindex> k\u00f5igi Flash-massiivide <noindex><a rel=\"nofollow\" href=\"http:\/\/accelstor.ru\/\">AccelStor<\/a><\/noindex> klientide infrastruktuuris reaalses t\u00f6\u00f6\u00fclesandete t\u00e4itmisel.<\/p>\n<p>Allikas: <a content=\"nofollow\" rel=\"nofollow\" href=\"https:\/\/habr.com\/ru\/company\/accelstor\/blog\/447390\/\">habr.com<\/a><\/p>","protected":false,"gt_translate_keys":[{"key":"rendered","format":"html"}]},"excerpt":{"rendered":"<p>\u0412 \u0440\u0430\u043c\u043a\u0430\u0445 \u0434\u0430\u043d\u043d\u043e\u0439 \u0441\u0442\u0430\u0442\u044c\u0438 \u0445\u043e\u0442\u0435\u043b\u043e\u0441\u044c \u0431\u044b \u0440\u0430\u0441\u0441\u043a\u0430\u0437\u0430\u0442\u044c \u043e\u0431 \u043e\u0441\u043e\u0431\u0435\u043d\u043d\u043e\u0441\u0442\u044f\u0445 \u0440\u0430\u0431\u043e\u0442\u044b All Flash \u043c\u0430\u0441\u0441\u0438\u0432\u043e\u0432 AccelStor \u0441 \u043e\u0434\u043d\u043e\u0439 \u0438\u0437 \u043f\u043e\u043f\u0443\u043b\u044f\u0440\u043d\u0435\u0439\u0448\u0438\u0445 \u043f\u043b\u0430\u0442\u0444\u043e\u0440\u043c \u0432\u0438\u0440\u0442\u0443\u0430\u043b\u0438\u0437\u0430\u0446\u0438\u0438 \u2013 VMware vSphere. \u0412 \u0447\u0430\u0441\u0442\u043d\u043e\u0441\u0442\u0438, \u0430\u043a\u0446\u0435\u043d\u0442\u0438\u0440\u043e\u0432\u0430\u0442\u044c \u0432\u043d\u0438\u043c\u0430\u043d\u0438\u0435 \u043d\u0430 \u0442\u0435\u0445 \u043f\u0430\u0440\u0430\u043c\u0435\u0442\u0440\u0430\u0445, \u043a\u043e\u0442\u043e\u0440\u044b\u0435 \u043f\u043e\u043c\u043e\u0433\u0443\u0442 \u043f\u043e\u043b\u0443\u0447\u0438\u0442\u044c \u043c\u0430\u043a\u0441\u0438\u043c\u0430\u043b\u044c\u043d\u044b\u0439 \u044d\u0444\u0444\u0435\u043a\u0442 \u043e\u0442 \u0438\u0441\u043f\u043e\u043b\u044c\u0437\u043e\u0432\u0430\u043d\u0438\u044f \u0442\u0430\u043a\u043e\u0433\u043e \u043c\u043e\u0449\u043d\u043e\u0433\u043e \u0438\u043d\u0441\u0442\u0440\u0443\u043c\u0435\u043d\u0442\u0430, \u043a\u0430\u043a All Flash. All Flash \u043c\u0430\u0441\u0441\u0438\u0432\u044b AccelStor NeoSapphire\u2122 \u043f\u0440\u0435\u0434\u0441\u0442\u0430\u0432\u043b\u044f\u044e\u0442 \u0441\u043e\u0431\u043e\u0439 \u043e\u0434\u043d\u043e \u0438\u043b\u0438 \u0434\u0432\u0443\u0445 \u043d\u043e\u0434\u043e\u0432\u044b\u0435 \u0443\u0441\u0442\u0440\u043e\u0439\u0441\u0442\u0432\u0430 [&hellip;]<\/p>\n","protected":false,"gt_translate_keys":[{"key":"rendered","format":"html"}]},"author":1,"featured_media":23196,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[688],"tags":[],"class_list":["post-31230","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-administrirovanie"],"aioseo_notices":[],"aioseo_head":"\n\t\t<!-- All in One SEO 5.0.0.1 - aioseo.com -->\n\t<meta name=\"description\" content=\"\u0412 \u0440\u0430\u043c\u043a\u0430\u0445 \u0434\u0430\u043d\u043d\u043e\u0439 \u0441\u0442\u0430\u0442\u044c\u0438 \u0445\u043e\u0442\u0435\u043b\u043e\u0441\u044c \u0431\u044b \u0440\u0430\u0441\u0441\u043a\u0430\u0437\u0430\u0442\u044c \u043e\u0431 \u043e\u0441\u043e\u0431\u0435\u043d\u043d\u043e\u0441\u0442\u044f\u0445 \u0440\u0430\u0431\u043e\u0442\u044b All Flash \u043c\u0430\u0441\u0441\u0438\u0432\u043e\u0432 AccelStor \u0441 \u043e\u0434\u043d\u043e\u0439 \u0438\u0437 \u043f\u043e\u043f\u0443\u043b\u044f\u0440\u043d\u0435\u0439\u0448\u0438\u0445 \u043f\u043b\u0430\u0442\u0444\u043e\u0440\u043c \u0432\u0438\u0440\u0442\u0443\u0430\u043b\u0438\u0437\u0430\u0446\u0438\u0438 \u2013 VMware vSphere. \u0412 \u0447\u0430\u0441\u0442\u043d\u043e\u0441\u0442\u0438, \u0430\u043a\u0446\u0435\u043d\u0442\u0438\u0440\u043e\u0432\u0430\u0442\u044c \u0432\u043d\u0438\u043c\u0430\u043d\u0438\u0435 \u043d\u0430 \u0442\u0435\u0445 \u043f\u0430\u0440\u0430\u043c\u0435\u0442\u0440\u0430\u0445, \u043a\u043e\u0442\u043e\u0440\u044b\u0435 \u043f\u043e\u043c\u043e\u0433\u0443\u0442 \u043f\u043e\u043b\u0443\u0447\u0438\u0442\u044c \u043c\u0430\u043a\u0441\u0438\u043c\u0430\u043b\u044c\u043d\u044b\u0439 \u044d\u0444\u0444\u0435\u043a\u0442 \u043e\u0442 \u0438\u0441\u043f\u043e\u043b\u044c\u0437\u043e\u0432\u0430\u043d\u0438\u044f \u0442\u0430\u043a\u043e\u0433\u043e \u043c\u043e\u0449\u043d\u043e\u0433\u043e \u0438\u043d\u0441\u0442\u0440\u0443\u043c\u0435\u043d\u0442\u0430, \u043a\u0430\u043a All Flash. 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