{"id":734,"date":"2011-08-04T13:31:11","date_gmt":"2011-08-04T12:31:11","guid":{"rendered":"http:\/\/www.edwardsd.co.uk\/work\/?p=734"},"modified":"2018-05-15T13:22:42","modified_gmt":"2018-05-15T12:22:42","slug":"sbs08-disk-space-exchange-back-pressure-thought-process-resolution","status":"publish","type":"post","link":"https:\/\/www.edwardsd.co.uk\/work\/2011\/08\/sbs08-disk-space-exchange-back-pressure-thought-process-resolution\/","title":{"rendered":"SBS08 | Disk Space \/ Exchange \/ &#8220;Back Pressure&#8221; Thought Process &#038; Resolution"},"content":{"rendered":"<p>It all started off with this problem, after being all scatty and trying to get my head around the issue I thought I\u2019d need to document this, hopefully to give a better sequence of debugging the issue rather than the mad chicken running round with no head!\u2026<\/p>\n<p><strong>Problem:<\/strong><\/p>\n<ul>\n<li>Internal Email all working<\/li>\n<li>External Email outbound all working<\/li>\n<li>No Inbound Email but no NDR from recipients.<\/li>\n<\/ul>\n<p><strong>Checks:<\/strong><\/p>\n<ol>\n<li>MX Lookup <a title=\"MXToolbox\" href=\"http:\/\/www.mxtoolbox.com\" target=\"_blank\">mxtoolbox.com<\/a>: Confirm where the mail goes to?<\/li>\n<li>SMTP check <a title=\"MXToolbox\" href=\"http:\/\/www.mxtoolbox.com\" target=\"_blank\">mxtoolbox.com<\/a>: Confirm the status of the server?<\/li>\n<li>Telnet: CMD -&gt; \u201ctelnet tothedomain.com 25\u201d Also another method to provide some different information and confirm if this server is answering requests for the inbound email\u2026<\/li>\n<li>Server check Disk Space: This is one of the most likely causes I have seen with server problems causing a raft of issues. But was thrown by 4GB free (Assuming this would be enough)<\/li>\n<li>Check Event Viewer: Ahh\u2026 the log of knowledge! well not quite if it doesn\u2019t show anything obvious\u2026 At first glance this didn\u2019t hi-light any problems but looking further I was given\u00a0this to work with: <em><strong>&#8220;Exchange Server 2007 Transport: 452 4.3.1 Insufficient system resources&#8221;<\/strong><\/em><\/li>\n<li>Google check: With something to go on I can do a little bit of Googling. To be fair I\u2019m sure that\u2019s what we all do for a new problem!<\/li>\n<li>Cause Identified: <a title=\"exchange-server-2007-transport-452-4-3-1-insufficient-system-resources\" href=\"http:\/\/exchangepedia.com\/2007\/03\/exchange-server-2007-transport-452-4-3-1-insufficient-system-resources.html\" target=\"_blank\">http:\/\/exchangepedia.com\/2007\/03\/exchange-server-2007-transport-452-4-3-1-insufficient-system-resources.html<\/a><\/li>\n<\/ol>\n<p><strong>Cause:<\/strong><\/p>\n<ul>\n<li><strong>The \u201cBack Pressure\u201d feature has kicked in and is not accepting requests.<\/strong><\/li>\n<li><strong>The problem is the 4GB DISK SPACE!!<\/strong><\/li>\n<\/ul>\n<p><strong>Solution:<\/strong><\/p>\n<ol>\n<li>Free Disk Space: The link above shows the tweaks and how to turn off \u201c<a title=\"Understanding Back Pressure Exchange 2010\" href=\"http:\/\/technet.microsoft.com\/en-us\/library\/bb201658.aspx\" target=\"_blank\">Back Pressure<\/a>\u201d but this can be avoided by simple cleaning up the disk space on C:\\ and restarting the \u201cExchange Transport\u201d service.<\/li>\n<li>Where is Disk Spaced used? Download Jamsoft\u00a0<a title=\"treesize_free\" href=\"http:\/\/www.jam-software.com\/treesize_free\/download.shtml\" target=\"_blank\">Treesize<\/a>, to show what space on c:\\ has been consumed.<\/li>\n<li>How can I free up disk space on Windows Small Business Server 2008? \u2013 Being new to SBS as I usually work with Server 2008 STD\/ENT I needed to confirm what can be cleaned up. Cleanup: IIS log files seem to waste a lot of disk space. The following script taken from: <a title=\"SBSFaq.com\" href=\"http:\/\/www.sbsfaq.com\/?p=1597\" target=\"_blank\">sbsfaq.com<\/a> will clean them up.<\/li>\n<\/ol>\n<blockquote><p>@echo off<br \/>\nrem Script to clean up disk space on SBS 2008 servers<br \/>\nrem Downloaded from SBSfaq.com<br \/>\nrem V1.0 &#8211; March 28th, 2010<\/p>\n<p>rem Certificate Services Logs<br \/>\nnet stop &#8220;Active Directory Certificate Services&#8221;<\/p>\n<p>del c:\\windows\\system32\\certlog\\*.log<br \/>\ndel c:\\windows\\system32\\certlog\\*.chk<br \/>\ndel c:\\windows\\system32\\certlof\\*.jrs<br \/>\nnet start &#8220;Active Directory Certificate Services&#8221;<\/p>\n<p>rem IIS Log Files<br \/>\nDel C:\\inetpub\\logs\\LogFiles\\*.log \/f \/s<\/p><\/blockquote>\n<p><strong>Fix:<\/strong><\/p>\n<p>Once the disk space issue was addressed we could then restart the \u201cExchange Transport\u201d service. This then kicked Exchange back into life, although it didn\u2019t comeback up instantly! And the service was restarted a few times for it to register (not sure the reason for this)<\/p>\n<p>Although this has resolved the problem for now, we will need to <span style=\"text-decoration: underline;\">move the Exchange DB<\/span> off the C:\\ (not sure why there in the first place) so this doesn&#8217;t become an issue again&#8230;<\/p>\n<p>Move the Exchange Server Data<\/p>\n<p><strong>Links which helped (Thank you)<\/strong><\/p>\n<ul>\n<li><a title=\"exchange-server-2007-transport-452-4-3-1-insufficient-system-resources\" href=\"http:\/\/exchangepedia.com\/2007\/03\/exchange-server-2007-transport-452-4-3-1-insufficient-system-resources.html\" target=\"_blank\">http:\/\/exchangepedia.com\/2007\/03\/exchange-server-2007-transport-452-4-3-1-insufficient-system-resources<\/a><\/li>\n<li><a title=\"exchange-server-2007-how-to-turn-off-the-back-pressure-feature-on-transport-servers\" href=\"https:\/\/exchangepedia.com\/2007\/03\/exchange-server-2007-how-to-turn-off-the-back-pressure-feature-on-transport-servers.html\" target=\"_blank\">https:\/\/exchangepedia.com\/2007\/03\/exchange-server-2007-how-to-turn-off-the-back-pressure-feature-on-transport-servers<\/a><\/li>\n<li>http:\/\/exchangeserverpro.com\/exchange-server-2007-event-id-15002-and-431-insufficient-system-resources-errors<\/li>\n<li><a title=\"sbsfaq.com\" href=\"http:\/\/www.sbsfaq.com\/?p=1597\" target=\"_blank\">http:\/\/www.sbsfaq.com\/?p=1597<\/a><\/li>\n<\/ul>\n","protected":false},"excerpt":{"rendered":"<p>It all started off with this problem, after being all scatty and trying to get my head around the issue I thought I\u2019d need to document this, hopefully to give a better sequence of debugging the issue rather than the mad chicken running round with no head!\u2026 Problem: Internal Email all working External Email outbound [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"ngg_post_thumbnail":0,"jetpack_post_was_ever_published":false,"_jetpack_newsletter_access":"","_jetpack_dont_email_post_to_subs":false,"_jetpack_newsletter_tier_id":0,"_jetpack_memberships_contains_paywalled_content":false,"_jetpack_memberships_contains_paid_content":false,"footnotes":"","jetpack_publicize_message":"","jetpack_publicize_feature_enabled":true,"jetpack_social_post_already_shared":false,"jetpack_social_options":{"image_generator_settings":{"template":"highway","default_image_id":0,"font":"","enabled":false},"version":2}},"categories":[37],"tags":[],"class_list":["post-734","post","type-post","status-publish","format-standard","hentry","category-windows-sbs2008"],"jetpack_publicize_connections":[],"jetpack_featured_media_url":"","jetpack_shortlink":"https:\/\/wp.me\/pOPt8-bQ","jetpack_sharing_enabled":true,"_links":{"self":[{"href":"https:\/\/www.edwardsd.co.uk\/work\/wp-json\/wp\/v2\/posts\/734","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.edwardsd.co.uk\/work\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.edwardsd.co.uk\/work\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.edwardsd.co.uk\/work\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.edwardsd.co.uk\/work\/wp-json\/wp\/v2\/comments?post=734"}],"version-history":[{"count":2,"href":"https:\/\/www.edwardsd.co.uk\/work\/wp-json\/wp\/v2\/posts\/734\/revisions"}],"predecessor-version":[{"id":3517,"href":"https:\/\/www.edwardsd.co.uk\/work\/wp-json\/wp\/v2\/posts\/734\/revisions\/3517"}],"wp:attachment":[{"href":"https:\/\/www.edwardsd.co.uk\/work\/wp-json\/wp\/v2\/media?parent=734"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.edwardsd.co.uk\/work\/wp-json\/wp\/v2\/categories?post=734"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.edwardsd.co.uk\/work\/wp-json\/wp\/v2\/tags?post=734"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}