{"id":5723,"date":"2015-07-21T12:00:37","date_gmt":"2015-07-21T11:00:37","guid":{"rendered":"http:\/\/www.markwilson.co.uk\/blog\/?p=5723"},"modified":"2015-07-22T22:31:32","modified_gmt":"2015-07-22T21:31:32","slug":"turning-to-a-pal-when-troubleshooting-exchange","status":"publish","type":"post","link":"https:\/\/www.markwilson.co.uk\/blog\/2015\/07\/turning-to-a-pal-when-troubleshooting-exchange.htm","title":{"rendered":"Turning to a PAL when troubleshooting Exchange&#8230;"},"content":{"rendered":"<p>I recently found myself working with a customer to troubleshoot issues with their Exchange Servers. The servers were losing contact with each other periodically and then doing what Exchange is designed to do in this circumstance, failing databases over to other servers. Unfortunately, whilst I&#8217;m not going to go into the exact details here for reasons of confidentiality, it did completely underline my opinion (backed up by <a href=\"http:\/\/blogs.technet.com\/b\/exchange\/archive\/2014\/04\/21\/the-preferred-architecture.aspx\">Microsoft&#8217;s Preferred Architecture for Exchange<\/a>) that virtualised Exchange solutions using SAN storage are overly-complex and <em>will<\/em> cause issues at some point&#8230;<\/p>\n<p>After going through the basics (are all the servers patched up to date, including consistent BIOS and firmware for all disks, controllers, NICs, etc.; has anti-virus software been disabled on the servers, especially host intrusion protection features; is the virtual infrastructure correctly configured, especially virtual networks; are there any tell-tale issues in the event logs?), I contacted my former colleague, Fujitsu Distinguished Engineer\u00a0and Exchange Master, <a href=\"https:\/\/503sayhelo.wordpress.com\/\">Nick Parlow<\/a> (who fixes people&#8217;s broken Exchange solutions for a living).\u00a0 Nick gave me some very useful advice for troubleshooting Exchange that I&#8217;m going to share here&#8230;<\/p>\n<ul>\n<li><a href=\"http:\/\/experfwiz.codeplex.com\/\">Experfwiz (the Exchange Performance Data Collection tool)<\/a>\u00a0can be run to collect information on how the servers are performing.\u00a0 There should be a lot of information in the Daily Performance Logs too (<a href=\"http:\/\/windowsitpro.com\/blog\/exchange-2013-diagnostic-and-performance-log-files\">as described by Tony Redmond<\/a> as long as no-one has <a href=\"http:\/\/ficility.net\/2013\/07\/08\/how-to-disable-managed-availability-in-exchange-2013\/\">deleted the scheduled task to save the logs from being created and taking up disk space!<\/a>)<\/li>\n<li>Take the output from Experfwiz (or the Daily Performance Logs) and run it through the <a href=\"http:\/\/pal.codeplex.com\/\">Performance Analysis of Logs (PAL) Tool,<\/a> which will produce an HTML report that can be used to identify issues based on recognised thresholds (and <a href=\"https:\/\/503sayhelo.wordpress.com\/2015\/05\/19\/your-new-pal\/\">version 2.7.3 includes Exchange 2013 thresholds<\/a>).<\/li>\n<\/ul>\n<p>A few more points that might be useful:<\/p>\n<ul>\n<li><a href=\"https:\/\/community.office365.com\/en-us\/w\/deploy\/office-365-best-practices-analyzer-for-exchange-server-2013\">The Exchange Best Practices Analyzer (ExBPA) is back<\/a>. Sort of. It&#8217;s now positioned as a tool to check Exchange before integrating with Office 365 and needs an Office 365 logon (<a href=\"https:\/\/justaucguy.wordpress.com\/2013\/10\/01\/exchange-2013-best-practices-analyzer-beta\/\">as MVP Damian Scoles explains<\/a>).<\/li>\n<li>Exchange DAG database failover is logged in Microsoft\/Exchange\/HighAvailability\/Debug (look for Event IDs 326\/7\/8).\u00a0 These could be used as a trigger to stop the <a href=\"http:\/\/blogs.technet.com\/b\/netmon\/\">Microsoft Network Monitor (NetMon)<\/a> from running&#8230; at which point you should have a network trace showing what was happening at the point when the databases failed over. (You could try something similar with <a href=\"https:\/\/www.wireshark.org\/\">Wireshark<\/a> too.)<\/li>\n<li>MVP <a href=\"http:\/\/www.msexchange.org\/articles-tutorials\/exchange-server-2010\/monitoring-operations\/monitor-dag-database-failover.html\">Nuno Mota has lots of advice on monitoring DAG failover on MSExchange.org<\/a>.<\/li>\n<li>There&#8217;s <a href=\"http:\/\/blogs.technet.com\/b\/rmilne\/archive\/2015\/04\/06\/exchange-2013-performance-health-check-script.aspx\">a useful Exchange 2013 Performance Health Check Script in the TechNet Gallery<\/a>. This helped to flag some minor issues that were worth fixing &#8211; like that Hyperthreading was enabled on the servers, that an out of date version of the .NET Framework was installed and that the power plan was balanced, rather than high performance (<a href=\"http:\/\/searchservervirtualization.techtarget.com\/tip\/Four-mistakes-that-can-kill-virtual-machine-performance\">this will kill performance on a virtual machine<\/a> &#8211; and I can&#8217;t see why any server would use anything other than high performance).<\/li>\n<li><a href=\"https:\/\/technet.microsoft.com\/en-us\/library\/bb691314(v=exchg.150).aspx\"><code>Test-ReplicationHealth<\/code><\/a> is a useful cmdlet to know (MVP <a href=\"http:\/\/exchangeserverpro.com\/exchange-2013-test-replicationhealth\/\">Paul Cunningham has a post about it too<\/a>).<\/li>\n<li><a href=\"https:\/\/technet.microsoft.com\/en-us\/library\/aa998852(v=exchg.150).aspx\"><code>Test-ServiceHealth<\/code><\/a> is another one (and <a href=\"http:\/\/exchangeserverpro.com\/exchange-2010-test-servicehealth\/\">here&#8217;s Paul&#8217;s post on that cmdlet<\/a>).<\/li>\n<li><a href=\"http:\/\/blogs.technet.com\/b\/exchange\/archive\/2014\/03\/05\/load-balancing-in-exchange-2013.aspx\"><code>http:\/\/servername\/virtualdirectory\/healthcheck.htm<\/code> can be used to test the response from a given server for a given protocol (and test any load balancing)<\/a>.<\/li>\n<\/ul>\n","protected":false},"excerpt":{"rendered":"<p>I recently found myself working with a customer to troubleshoot issues with their Exchange Servers. The servers were losing contact with each other periodically and then doing what Exchange is designed to do in this circumstance, failing databases over to other servers. Unfortunately, whilst I&#8217;m not going to go into the exact details here for &hellip; <a href=\"https:\/\/www.markwilson.co.uk\/blog\/2015\/07\/turning-to-a-pal-when-troubleshooting-exchange.htm\" class=\"more-link\">Continue reading <span class=\"screen-reader-text\">Turning to a PAL when troubleshooting Exchange&#8230;<\/span><\/a><\/p>\n","protected":false},"author":2,"featured_media":0,"comment_status":"open","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_exactmetrics_skip_tracking":false,"_exactmetrics_sitenote_active":false,"_exactmetrics_sitenote_note":"","_exactmetrics_sitenote_category":0,"_jetpack_memberships_contains_paid_content":false,"footnotes":""},"categories":[218],"tags":[46],"class_list":["post-5723","post","type-post","status-publish","format-standard","hentry","category-technology","tag-exchange"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v27.5 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>Turning to a PAL when troubleshooting Exchange... - markwilson.it<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/www.markwilson.co.uk\/blog\/2015\/07\/turning-to-a-pal-when-troubleshooting-exchange.htm\" \/>\n<meta property=\"og:locale\" content=\"en_GB\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Turning to a PAL when troubleshooting Exchange... - markwilson.it\" \/>\n<meta property=\"og:description\" content=\"I recently found myself working with a customer to troubleshoot issues with their Exchange Servers. The servers were losing contact with each other periodically and then doing what Exchange is designed to do in this circumstance, failing databases over to other servers. 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ExBPA was recently joined by the Exchange Server Troubleshooting Assistant (ExTRA) which, according to the Microsoft website: \"[...] Programmatically executes a set of troubleshooting steps to identify\u2026","rel":"","context":"In \"Microsoft Exchange\"","block_context":{"text":"Microsoft Exchange","link":"https:\/\/www.markwilson.co.uk\/blog\/tag\/exchange"},"img":{"alt_text":"","src":"","width":0,"height":0},"classes":[]},{"id":93,"url":"https:\/\/www.markwilson.co.uk\/blog\/2005\/02\/microsoft-exchange-server-2003.htm","url_meta":{"origin":5723,"position":1},"title":"Microsoft Exchange Server 2003 troubleshooting and disaster recovery","author":"Mark Wilson","date":"Thursday 24 February 2005","format":false,"excerpt":"A couple of nights back, I attended one of the Microsoft TechNet UK events. Not sure whether to attend John Howard's session on automating Windows Server Administration or Eileen Brown's Microsoft Exchange Server 2003 Troubleshooting and Disaster Recovery session, I decided to return to my Microsoft Exchange roots (which go\u2026","rel":"","context":"In \"Microsoft Exchange\"","block_context":{"text":"Microsoft Exchange","link":"https:\/\/www.markwilson.co.uk\/blog\/tag\/exchange"},"img":{"alt_text":"","src":"","width":0,"height":0},"classes":[]},{"id":6135,"url":"https:\/\/www.markwilson.co.uk\/blog\/2015\/10\/tools-for-troubleshooting-outlook-autodiscover.htm","url_meta":{"origin":5723,"position":2},"title":"Tools for troubleshooting Outlook autodiscover","author":"Mark Wilson","date":"Monday 12 October 2015","format":false,"excerpt":"In my post last week about Office 365 and proxy servers,\u00a0I mentioned issues with Outlook autodiscover. \u00a0These were not exactly easy to troubleshoot, often with multiple subject matter experts looking\u00a0from\u00a0different angles (network, client applications, Exchange, firewalls, etc.). During the process, we used a few tools (as well as examining the\u2026","rel":"","context":"In &quot;Technology&quot;","block_context":{"text":"Technology","link":"https:\/\/www.markwilson.co.uk\/blog\/topic\/technology"},"img":{"alt_text":"","src":"","width":0,"height":0},"classes":[]},{"id":6415,"url":"https:\/\/www.markwilson.co.uk\/blog\/2016\/07\/short-takes-pairing-headphones-firewalls-exchange-smtp-communications-tethered-photos-mac.htm","url_meta":{"origin":5723,"position":3},"title":"Short takes: pairing my headphones, firewalls and Exchange SMTP communications, tethered photos with a Mac","author":"Mark Wilson","date":"Friday 22 July 2016","format":false,"excerpt":"Some more snippets that don't quite make a blog post... Because I always forget how to do this:\u00a0how to pair a\u00a0Plantronics\u00a0BackBeat PRO headset with a\u00a0mobile device. And a little tip whilst troubleshooting connectivity to an Exchange Server server for hybrid connectivity with Office 365... if telnet ipaddress 25 gives a\u2026","rel":"","context":"In &quot;Technology&quot;","block_context":{"text":"Technology","link":"https:\/\/www.markwilson.co.uk\/blog\/topic\/technology"},"img":{"alt_text":"Take photos with OS X Image Capture","src":"https:\/\/i0.wp.com\/www.markwilson.co.uk\/blog\/images\/osx-image-capture-take-picture.png?resize=350%2C200&ssl=1","width":350,"height":200},"classes":[]},{"id":102,"url":"https:\/\/www.markwilson.co.uk\/blog\/2005\/05\/troubleshooting-windows-authentication.htm","url_meta":{"origin":5723,"position":4},"title":"Troubleshooting Windows authentication with the Microsoft account lockout and management tools","author":"Mark Wilson","date":"Wednesday 18 May 2005","format":false,"excerpt":"A few weeks back I was at a Microsoft TechNet UK event where John Howard demonstrated the free tools provided by Microsoft to troubleshoot and diagnose account lockout and management issues for Windows NT, 2000 and 2003: acctinfo.dll (also included with the Windows Server 2003 resource kit tools) is installed\u2026","rel":"","context":"In \"Microsoft Windows 2000\"","block_context":{"text":"Microsoft Windows 2000","link":"https:\/\/www.markwilson.co.uk\/blog\/tag\/windows-2000"},"img":{"alt_text":"","src":"","width":0,"height":0},"classes":[]},{"id":856,"url":"https:\/\/www.markwilson.co.uk\/blog\/2007\/07\/microsofts-support-policy-for-software-running-in-a-non-microsoft-vm.htm","url_meta":{"origin":5723,"position":5},"title":"Microsoft&#8217;s support policy for software running in a non-Microsoft VM","author":"Mark Wilson","date":"Sunday 22 July 2007","format":false,"excerpt":"I'm troubleshooting some problems with my Exchange server at the moment and the ExBPA led me to a knowledge base article about running Exchange Server in a virtualised environment. Whilst reading that, I can across Microsoft knowledge base article 897615, which discusses the support policy for Microsoft software running in\u2026","rel":"","context":"In \"Microsoft\"","block_context":{"text":"Microsoft","link":"https:\/\/www.markwilson.co.uk\/blog\/tag\/microsoft"},"img":{"alt_text":"","src":"","width":0,"height":0},"classes":[]}],"jetpack_sharing_enabled":true,"_links":{"self":[{"href":"https:\/\/www.markwilson.co.uk\/blog\/wp-json\/wp\/v2\/posts\/5723","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.markwilson.co.uk\/blog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.markwilson.co.uk\/blog\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.markwilson.co.uk\/blog\/wp-json\/wp\/v2\/users\/2"}],"replies":[{"embeddable":true,"href":"https:\/\/www.markwilson.co.uk\/blog\/wp-json\/wp\/v2\/comments?post=5723"}],"version-history":[{"count":7,"href":"https:\/\/www.markwilson.co.uk\/blog\/wp-json\/wp\/v2\/posts\/5723\/revisions"}],"predecessor-version":[{"id":5768,"href":"https:\/\/www.markwilson.co.uk\/blog\/wp-json\/wp\/v2\/posts\/5723\/revisions\/5768"}],"wp:attachment":[{"href":"https:\/\/www.markwilson.co.uk\/blog\/wp-json\/wp\/v2\/media?parent=5723"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.markwilson.co.uk\/blog\/wp-json\/wp\/v2\/categories?post=5723"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.markwilson.co.uk\/blog\/wp-json\/wp\/v2\/tags?post=5723"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}