{"id":9317,"date":"2017-01-23T15:19:22","date_gmt":"2017-01-23T13:19:22","guid":{"rendered":"https:\/\/ihs.com.tr\/blog\/?p=9317"},"modified":"2017-01-23T15:34:29","modified_gmt":"2017-01-23T13:34:29","slug":"vsan-aglarini-tasarlarken-vds-kullanmali","status":"publish","type":"post","link":"https:\/\/www.ihs.com.tr\/blog\/vsan-aglarini-tasarlarken-vds-kullanmali\/","title":{"rendered":"vSAN A\u011flar\u0131n\u0131 Tasarlarken Neden VDS Kullanmal\u0131?"},"content":{"rendered":"

vSphere (VDS) VMware vSAN i\u00e7erisindeki g\u00fc\u00e7l\u00fc ama \u00e7o\u011fu zaman yanl\u0131\u015f anla\u015f\u0131lm\u0131\u015f bir teknolojidir. A\u015fa\u011f\u0131da en \u00e7ok tercih edilen VDS ayarlar\u0131ndan baz\u0131lar\u0131 ve bu ayarlar\u0131n Virtual SAN k\u00fcmelerine daha fazla kontrol, performans ve g\u00f6r\u00fcn\u00fcrl\u00fck kazand\u0131rmak i\u00e7in nas\u0131l kullan\u0131laca\u011f\u0131 hakk\u0131nda bilgiler yer almakta. VDS en \u00e7ok basit bir t\u0131klamayla t\u00fcm hostlar \u00fczerinde port gruplar\u0131 olu\u015fturabilme \u00f6zelli\u011fiyle bilinir ama ayn\u0131 zamanda vSAN y\u00f6neticisinin i\u015fini bir hayli kolayla\u015ft\u0131racak \u00e7ok g\u00fc\u00e7l\u00fc ama daha az bilinen i\u015flevlere de sahiptir.<\/span><\/p>\n

\"vmware<\/p>\n

LLDP\/CDP<\/strong> Yeni bir vSAN k\u00fcmesi da\u011f\u0131t\u0131rken veya sorunlar\u0131 tespit etmeye \u00e7al\u0131\u015f\u0131rken VDS teknolojisinin \u00e7ok faydas\u0131 vard\u0131r. Bunlar\u0131n en iyilerinden biri Ba\u011flant\u0131 Katman\u0131 Ke\u015fif Protokol\u00fc\/Link Layer Discovery Protocol (LLDP) ve Cisco Ke\u015fif Protokol\u00fc\/Cisco Discovery Protocol (CDP)\u2019yi hem g\u00f6nderim hem al\u0131m i\u00e7in yap\u0131land\u0131rabilme \u00f6zelli\u011fidir. Standart switch yaln\u0131zca CDP\u2019nin al\u0131nmas\u0131n\u0131 sa\u011flar. Yani bir host switchlerden bilgi \u00e7ekip bunun hangi switch\/port\/LAN\u2019a ba\u011fl\u0131 oldu\u011funu tespit edebildi\u011fi gibi, a\u011f y\u00f6neticileri hangi hostlar\u0131n hangi fiziksel switchlere ba\u011fl\u0131 oldu\u011funu tespit edebilir.<\/span><\/p>\n

\"lldp-cdp\"<\/p>\n

Yanl\u0131\u015f portlar\u0131 d\u00fczeltmek i\u00e7in harcanan uzun saatler d\u00fc\u015f\u00fcn\u00fcld\u00fc\u011f\u00fcnde, bu k\u00fc\u00e7\u00fck ayar\u0131n herkesin ayn\u0131 anda t\u00fcm switchlerin ba\u011fl\u0131 oldu\u011fu sayfada olmas\u0131n\u0131 sa\u011flamas\u0131 \u00e7ok b\u00fcy\u00fck bir kolayl\u0131k olarak g\u00f6r\u00fclebilir. Bu \u00f6zellik ayn\u0131 zamanda dok\u00fcmentasyon hatalar\u0131n\u0131n veya yanl\u0131\u015f ba\u011flanm\u0131\u015f hostlar\u0131n h\u0131zl\u0131 ve kolay bir \u015fekilde <\/span>bulunabilmesini de sa\u011flar.<\/span><\/p>\n

NetFlow ve IPFIX<\/strong> IP trafi\u011fi bilgisini hem VMware vRealize Network Insight\u2019taki bir kollekt\u00f6re hem de Solarwinds, Netflow Logic ve CA gibi \u00fc\u00e7\u00fcnc\u00fc parti ara\u00e7lara g\u00f6ndererek bu trafi\u011fin tespit edilip hesaplanmas\u0131n\u0131 sa\u011flar. <\/span><\/p>\n

\"netflow<\/p>\n

Bu ara\u00e7lar takip, y\u00f6netim ve g\u00fcvenlik amac\u0131yla bir sanal makineye giren ve \u00e7\u0131kan trafi\u011fi bant d\u0131\u015f\u0131 bir perspektiften izleme imkan\u0131n\u0131 sunar. Bu \u00f6zellik yaln\u0131zca ne kadar trafik oldu\u011funu de\u011fil, ayn\u0131 zamanda bu trafi\u011fin nereye gitti\u011fini de g\u00f6rmenizi sa\u011flar. \u00a0<\/span><\/p>\n

vSphere Network I\/O Control (NIOC)<\/strong> iSCSI trafi\u011fi, vMotion trafi\u011fi, y\u00f6netim trafi\u011fi, vSphere Replication (VR) trafi\u011fi, NFS trafi\u011fi, Hata Tolerans\u0131 (FR) trafi\u011fi ve sanal makine trafi\u011fi gibi vSphere trafik \u00e7e\u015fitleri taraf\u0131ndan payla\u015f\u0131lan bir VDS i\u00e7erisindeki ayn\u0131 NIC \u00e7\u0131k\u0131\u015f ba\u011flant\u0131s\u0131 \u00fczerindeki Virtual SAN trafi\u011fine y\u00f6nelik servis kalitesini ayarlamak i\u00e7in kullan\u0131labilir. NIOC\u2019ye \u00f6zg\u00fc genel en iyi uygulamalar Virtual SAN trafi\u011fi i\u00e7in de ge\u00e7erlidir:<\/span><\/p>\n

\"NIOC\"<\/p>\n

– Bant geni\u015fli\u011fi kullan\u0131m\u0131 i\u00e7in, \u201climits\u201d yerine \u201cshares\u201d kullan\u0131n, \u00e7\u00fcnk\u00fc \u201cshares\u201d kullan\u0131lmayan potansiyel yeniden da\u011f\u0131t\u0131m i\u00e7in daha fazla esneklik sa\u011flar.<\/span><\/p>\n

– Hata Tolerans\u0131 (Fault Tolerance\/FT) kaynak havuzu i\u00e7in mutlaka daha y\u00fcksek nispi pay belirleyin \u00e7\u00fcnk\u00fc FT gecikmeye \u00e7ok duyarl\u0131 bir trafik tipidir.<\/span><\/p>\n

– A\u011f kapasitesi kullan\u0131m\u0131n\u0131 en \u00fcst seviyeye \u00e7\u0131karmak i\u00e7in NIC ile birlikte NIOC kullan\u0131n.<\/span><\/p>\n

– Farkl\u0131 kaynak havuzlar\u0131 \u00fczerinde ilave bant geni\u015fli\u011fi kontrol\u00fc i\u00e7in VDS Port Grubu ve Trafik \u015eekillendirme \u0130lkeleri \u00f6zelliklerini kullan\u0131n<\/span><\/p>\n

\u00d6zellikle Virtual SAN<\/a> i\u00e7in a\u015fa\u011f\u0131dakiler \u0131srarla tavsiye dilmektedir:<\/span><\/p>\n

– Virtual SAN trafi\u011fi i\u00e7in bir \u00fcst limit belirlemeyin. Bu trafik varsay\u0131lan olarak s\u0131n\u0131rs\u0131zd\u0131r.<\/span><\/p>\n

– Virtual SAN kaynak havuzu i\u00e7in, depolamaya dair uygulama performans\u0131 gereksinimlerine g\u00f6re ve i\u015f mobilitesi i\u00e7in gerekli olan ve ani art\u0131\u015flar g\u00f6sterebilen vMotion trafi\u011fi gibi di\u011fer i\u015f y\u00fcklerini g\u00f6z \u00f6n\u00fcnde bulundurarak bir nispi pay belirleyin.<\/span><\/p>\n

– \u00a0\u00d6nceden kaynak tahsis etmekten ka\u00e7\u0131n\u0131n \u00e7\u00fcnk\u00fc bu kaynaklar kullan\u0131lmayan trafi\u011fi Sanal Makine a\u011f ihtiya\u00e7lar\u0131yla de\u011fil, yaln\u0131zca di\u011fer y\u00f6netim tipleriyle (vMotion, Depolama vs.) payla\u015f\u0131r.<\/span><\/p>\n

LAG<\/strong> – Birden fazla aray\u00fcz oldu\u011fu durumlarda, daha fazla kullan\u0131m opsiyonu vard\u0131r. VDS LAG\u2019i \u00e7ok \u00e7e\u015fitli geli\u015fmi\u015f hashlerle ve bir switchin yanl\u0131\u015f yap\u0131land\u0131r\u0131ld\u0131\u011f\u0131 durumlarda \u00e7al\u0131\u015f\u0131r hale ge\u00e7meyen Dynamic LACP ile destekler. Her ne kadar herkesin LAG\u2019e ihtiyac\u0131 olmasa da, e\u011fer bu \u00f6zelli\u011fi kullanacaksan\u0131z VDS\u2019e ekstra bir i\u015flev kazand\u0131rmakta hi\u00e7bir sak\u0131nca yoktur.<\/span><\/p>\n

VDS Hakk\u0131ndaki Yanl\u0131\u015f Fikirler<\/span><\/strong><\/p>\n

Bu konudaki en yayg\u0131n endi\u015felerden biri vCenter\u2019\u0131n \u00e7\u00f6kt\u00fc\u011f\u00fc durumlarda VDS\u2019in nas\u0131l davranaca\u011f\u0131n\u0131 bilmemektir. VDS kullanan sanal makinelerin vCenter\u2019\u0131n devre d\u0131\u015f\u0131 kald\u0131\u011f\u0131 durumlarda kesinti ya\u015famadan \u00e7al\u0131\u015fmaya devam edece\u011fi unutulmamal\u0131d\u0131r. Switchleri yap\u0131land\u0131rabilme veya Sanal Makine ekleme \u00f6zelli\u011fini kaybedersiniz ama bu switchler \u00e7al\u0131\u015fmaya devam eder. E\u011fer bir ar\u0131za durumunda VLAN\/PortGroup\u2019un y\u00f6netimi i\u00e7in sanal makine eklemenizin gerekebilece\u011fi bir durum \u00f6ng\u00f6r\u00fcyorsan\u0131z, bir Ge\u00e7ici Port grubu olu\u015fturabilirsiniz. Y\u00f6netim fonksiyonlar\u0131 i\u00e7in standart bir switch bulundurman\u0131za gerek kalmadan ortam i\u00e7inde depolanan bir destek dosyas\u0131 (mesela vCenter veritaban\u0131) olu\u015fturman\u0131z\u0131 sa\u011flar.<\/span><\/p>\n

VDS oldum olas\u0131 kurumsal lisans talep etti\u011finden lisans konusunda da birtak\u0131m endi\u015feler s\u0131k s\u0131k dile getirilir. T\u00fcm vSAN<\/a>\u00a0s\u00fcr\u00fcmlerinde VDS oldu\u011funu ve dolay\u0131s\u0131yla bunu vSAN ile birlikte kullanmamak i\u00e7in hi\u00e7bir mant\u0131kl\u0131 neden olmad\u0131\u011f\u0131n\u0131 hat\u0131rlatmakta fayda var! vSAN ile ilgili detaylar ve \u00fccretsiz dan\u0131\u015fmanl\u0131k i\u00e7in t\u0131klay\u0131n\u0131z.<\/a><\/span><\/p>\n","protected":false},"excerpt":{"rendered":"

vSphere (VDS) VMware vSAN i\u00e7erisindeki g\u00fc\u00e7l\u00fc ama \u00e7o\u011fu zaman yanl\u0131\u015f anla\u015f\u0131lm\u0131\u015f bir teknolojidir. A\u015fa\u011f\u0131da en \u00e7ok tercih edilen VDS ayarlar\u0131ndan baz\u0131lar\u0131 ve…<\/p>\n","protected":false},"author":3,"featured_media":9344,"comment_status":"open","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1,390],"tags":[],"class_list":["post-9317","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-haberler","category-kurumsal"],"amp_enabled":true,"_links":{"self":[{"href":"https:\/\/www.ihs.com.tr\/blog\/wp-json\/wp\/v2\/posts\/9317","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.ihs.com.tr\/blog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.ihs.com.tr\/blog\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.ihs.com.tr\/blog\/wp-json\/wp\/v2\/users\/3"}],"replies":[{"embeddable":true,"href":"https:\/\/www.ihs.com.tr\/blog\/wp-json\/wp\/v2\/comments?post=9317"}],"version-history":[{"count":3,"href":"https:\/\/www.ihs.com.tr\/blog\/wp-json\/wp\/v2\/posts\/9317\/revisions"}],"predecessor-version":[{"id":9343,"href":"https:\/\/www.ihs.com.tr\/blog\/wp-json\/wp\/v2\/posts\/9317\/revisions\/9343"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.ihs.com.tr\/blog\/wp-json\/wp\/v2\/media\/9344"}],"wp:attachment":[{"href":"https:\/\/www.ihs.com.tr\/blog\/wp-json\/wp\/v2\/media?parent=9317"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.ihs.com.tr\/blog\/wp-json\/wp\/v2\/categories?post=9317"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.ihs.com.tr\/blog\/wp-json\/wp\/v2\/tags?post=9317"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}