{"id":617,"date":"2018-02-02T11:09:58","date_gmt":"2018-02-02T10:09:58","guid":{"rendered":"http:\/\/www.quisted.net\/?p=617"},"modified":"2018-02-02T11:09:58","modified_gmt":"2018-02-02T10:09:58","slug":"san-technologies","status":"publish","type":"post","link":"https:\/\/www.quisted.net\/index.php\/2018\/02\/02\/san-technologies\/","title":{"rendered":"SAN (Technologies, Protocols, Design)"},"content":{"rendered":"<p><a href=\"http:\/\/vps.quisted.net\/wp-content\/uploads\/2018\/02\/SAN-das-nas-san.png\"><img loading=\"lazy\" decoding=\"async\" class=\"alignnone wp-image-628 size-full\" src=\"http:\/\/vps.quisted.net\/wp-content\/uploads\/2018\/02\/SAN-das-nas-san.png\" alt=\"\" width=\"495\" height=\"328\" srcset=\"https:\/\/www.quisted.net\/wp-content\/uploads\/2018\/02\/SAN-das-nas-san.png 495w, https:\/\/www.quisted.net\/wp-content\/uploads\/2018\/02\/SAN-das-nas-san-300x199.png 300w\" sizes=\"auto, (max-width: 495px) 100vw, 495px\" \/><\/a><\/p>\n<p><!--more--><\/p>\n<p><a href=\"http:\/\/vps.quisted.net\/wp-content\/uploads\/2018\/02\/san-1.png\"><img loading=\"lazy\" decoding=\"async\" class=\"alignnone wp-image-622 size-full\" src=\"http:\/\/vps.quisted.net\/wp-content\/uploads\/2018\/02\/san-1.png\" alt=\"\" width=\"232\" height=\"352\" srcset=\"https:\/\/www.quisted.net\/wp-content\/uploads\/2018\/02\/san-1.png 232w, https:\/\/www.quisted.net\/wp-content\/uploads\/2018\/02\/san-1-198x300.png 198w\" sizes=\"auto, (max-width: 232px) 100vw, 232px\" \/><\/a><\/p>\n<ul>\n<li>A network of Storage devices<\/li>\n<li>Seperates storage from the server<\/li>\n<li>Benefits:\n<ul>\n<li>High I\/O Ratings<\/li>\n<li>Server Failover<\/li>\n<li>Shared \/ Pooled storage<\/li>\n<li>Lower TCO ( compared to direct storage)<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n<div id=\"ez-toc-container\" class=\"ez-toc-v2_0_80 counter-hierarchy ez-toc-counter ez-toc-grey ez-toc-container-direction\">\n<div class=\"ez-toc-title-container\">\n<p class=\"ez-toc-title\" style=\"cursor:inherit\">Table of Contents<\/p>\n<span class=\"ez-toc-title-toggle\"><a href=\"#\" class=\"ez-toc-pull-right ez-toc-btn ez-toc-btn-xs ez-toc-btn-default ez-toc-toggle\" aria-label=\"Toggle Table of Content\"><span class=\"ez-toc-js-icon-con\"><span class=\"\"><span class=\"eztoc-hide\" style=\"display:none;\">Toggle<\/span><span class=\"ez-toc-icon-toggle-span\"><svg style=\"fill: #999;color:#999\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\" class=\"list-377408\" width=\"20px\" height=\"20px\" viewBox=\"0 0 24 24\" fill=\"none\"><path d=\"M6 6H4v2h2V6zm14 0H8v2h12V6zM4 11h2v2H4v-2zm16 0H8v2h12v-2zM4 16h2v2H4v-2zm16 0H8v2h12v-2z\" fill=\"currentColor\"><\/path><\/svg><svg style=\"fill: #999;color:#999\" class=\"arrow-unsorted-368013\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\" width=\"10px\" height=\"10px\" viewBox=\"0 0 24 24\" version=\"1.2\" baseProfile=\"tiny\"><path d=\"M18.2 9.3l-6.2-6.3-6.2 6.3c-.2.2-.3.4-.3.7s.1.5.3.7c.2.2.4.3.7.3h11c.3 0 .5-.1.7-.3.2-.2.3-.5.3-.7s-.1-.5-.3-.7zM5.8 14.7l6.2 6.3 6.2-6.3c.2-.2.3-.5.3-.7s-.1-.5-.3-.7c-.2-.2-.4-.3-.7-.3h-11c-.3 0-.5.1-.7.3-.2.2-.3.5-.3.7s.1.5.3.7z\"\/><\/svg><\/span><\/span><\/span><\/a><\/span><\/div>\n<nav><ul class='ez-toc-list ez-toc-list-level-1 ' ><ul class='ez-toc-list-level-3' ><li class='ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-1\" href=\"https:\/\/www.quisted.net\/index.php\/2018\/02\/02\/san-technologies\/#SAN_Components\" >SAN Components<\/a><\/li><\/ul><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-2\" href=\"https:\/\/www.quisted.net\/index.php\/2018\/02\/02\/san-technologies\/#Protocols_and_Standards\" >Protocols and Standards<\/a><ul class='ez-toc-list-level-3' ><li class='ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-3\" href=\"https:\/\/www.quisted.net\/index.php\/2018\/02\/02\/san-technologies\/#San_Design\" >San Design<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-4\" href=\"https:\/\/www.quisted.net\/index.php\/2018\/02\/02\/san-technologies\/#Extending_Fibre_Channel\" >Extending Fibre Channel<\/a><\/li><\/ul><\/li><\/ul><\/nav><\/div>\n<h3><span class=\"ez-toc-section\" id=\"SAN_Components\"><\/span><span style=\"color: #3366ff;\"><strong>SAN Components<\/strong><\/span><span class=\"ez-toc-section-end\"><\/span><\/h3>\n<ul>\n<li><strong>Host Bus Adapter<\/strong>\n<ul>\n<li>Interfaces the device to the network<\/li>\n<\/ul>\n<\/li>\n<li><strong>Datastorage<\/strong>\n<ul>\n<li>The drives within the san ( SAN speed + Uptime + Enterprise grade)<\/li>\n<\/ul>\n<\/li>\n<li><strong>Storage Subsystems<\/strong>\n<ul>\n<li>RAID Settings ( Performance ~ Redundancy )<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n<h2><span class=\"ez-toc-section\" id=\"Protocols_and_Standards\"><\/span><span style=\"color: #3366ff;\">Protocols and Standards<\/span><span class=\"ez-toc-section-end\"><\/span><\/h2>\n<ul>\n<li>SCSI\n<ul>\n<li>Older standard protocol, server \/ drive communication.<\/li>\n<\/ul>\n<\/li>\n<li>Parrallel Bus Standard\n<ul>\n<li>Half duplex<\/li>\n<li>16 device daisy chain<\/li>\n<\/ul>\n<\/li>\n<li><span style=\"color: #993366;\"><strong>Fibre channel<\/strong><\/span>\n<ul>\n<li>16 million device support<\/li>\n<li>Speeds up to <strong>4Gbps<\/strong> and now <strong>128Gbps.<\/strong><\/li>\n<li>10KM distance without extenders<\/li>\n<li>Multiprotocol support<\/li>\n<li>Fibrechannel is not Ethernet<\/li>\n<li>Speedratings: <strong>1,4,8,16,32,128Gbps<\/strong><\/li>\n<\/ul>\n<\/li>\n<\/ul>\n<p><span style=\"color: #993366;\"><strong>Fibre channel Communications<\/strong><\/span><\/p>\n<ul>\n<li>Very similar to <strong>TCP<\/strong>\n<ul>\n<li>Point-to-point session establishment ( 3-way handshake like)<\/li>\n<li>Logical node connection point ( like <strong>TCP ports<\/strong> )<\/li>\n<li>Fibre Channel Protocol (<strong> FCP<\/strong> ) Supports flow control using &#8216;<em>Buffer Credits<\/em>&#8216; ( TCP Windows)<\/li>\n<li>Multiple Sessions per device ( TCP Sockets )<\/li>\n<\/ul>\n<\/li>\n<li>Cisco MDS 9000 series switches design for this job.<\/li>\n<\/ul>\n<p><strong><span style=\"color: #993366;\">Fibre channel Virtual SANs<\/span><br \/>\n<\/strong><\/p>\n<ul>\n<li>A virtual SAN (VSAN) provides VLAN-like capabilities to a &#8216;SAN Island<\/li>\n<li>Connections between switches ( ISL )<\/li>\n<li>Cisco MDS 9000 uses <strong>Enchanced ISL<\/strong><\/li>\n<li>Inter-VSAN Routing ( <strong>IVR<\/strong> ) connects VSANS at Layer3. (Used with Fibre channel over IP <strong>(FCIP))<\/strong><\/li>\n<li>Parallel Universe; Fabric Shortest Path First ( FSPF ) Zoning.<\/li>\n<\/ul>\n<p>REF:<\/p>\n<p><a href=\"https:\/\/supportforums.cisco.com\/t5\/data-center-documents\/configuring-and-troubleshooting-mds-enhanced-zoning\/ta-p\/3118747\">https:\/\/supportforums.cisco.com\/t5\/data-center-documents\/configuring-and-troubleshooting-mds-enhanced-zoning\/ta-p\/3118747<\/a><\/p>\n<h3><span class=\"ez-toc-section\" id=\"San_Design\"><\/span><span style=\"color: #3366ff;\"><strong>San Design<\/strong><\/span><span class=\"ez-toc-section-end\"><\/span><\/h3>\n<ul>\n<li>Similar to switch designs only on smaller scale<\/li>\n<li>Cisco SAN MDS 9000\n<ul>\n<li>First Gen, Stackable Switches<\/li>\n<li>Second Gen, Modular switches (less ISL , Redundancy)<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n<h3><span class=\"ez-toc-section\" id=\"Extending_Fibre_Channel\"><\/span><span style=\"color: #3366ff;\"><strong>Extending Fibre Channel<\/strong><\/span><span class=\"ez-toc-section-end\"><\/span><\/h3>\n<ul>\n<li>Within datacenter &#8211; Multimode \/ Single mode fiber<\/li>\n<li>Metro &#8211; Dense wave Division Multiplex <strong>( DWDM )<\/strong><\/li>\n<li>Anywhere &#8211; Fibre Channel over IP <strong>( FCIP )<\/strong><\/li>\n<li>NOTE: ISCSI supports SAN extention over tcp\/ip ( Not over Fibre Channel )<\/li>\n<li><strong>FCIP<\/strong> connects <strong>SAN<\/strong> to <strong>SAN, iSCSI<\/strong> connects <strong>Hosts<\/strong> to <strong>SAN<\/strong><\/li>\n<li>QoS absolutely needed for non-dedicated links.<\/li>\n<\/ul>\n","protected":false},"excerpt":{"rendered":"","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"ngg_post_thumbnail":0,"footnotes":""},"categories":[2,5],"tags":[31,43,44,45,46,55,68,85,86,100],"class_list":["post-617","post","type-post","status-publish","format-standard","hentry","category-arc","category-designprinciples","tag-das","tag-fcip","tag-fcoe","tag-fibrechanne","tag-fspf","tag-ivr","tag-nas","tag-san","tag-scsi","tag-vsans"],"_links":{"self":[{"href":"https:\/\/www.quisted.net\/index.php\/wp-json\/wp\/v2\/posts\/617","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.quisted.net\/index.php\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.quisted.net\/index.php\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.quisted.net\/index.php\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.quisted.net\/index.php\/wp-json\/wp\/v2\/comments?post=617"}],"version-history":[{"count":0,"href":"https:\/\/www.quisted.net\/index.php\/wp-json\/wp\/v2\/posts\/617\/revisions"}],"wp:attachment":[{"href":"https:\/\/www.quisted.net\/index.php\/wp-json\/wp\/v2\/media?parent=617"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.quisted.net\/index.php\/wp-json\/wp\/v2\/categories?post=617"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.quisted.net\/index.php\/wp-json\/wp\/v2\/tags?post=617"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}