{"id":1515,"date":"2009-09-10T17:54:51","date_gmt":"2009-09-10T17:54:51","guid":{"rendered":"http:\/\/www.markwilson.co.uk\/blog\/2009\/09\/moving-to-linux-from-solaris.htm"},"modified":"2009-09-10T18:01:40","modified_gmt":"2009-09-10T18:01:40","slug":"moving-to-linux-from-solaris","status":"publish","type":"post","link":"https:\/\/www.markwilson.co.uk\/blog\/2009\/09\/moving-to-linux-from-solaris.htm","title":{"rendered":"Moving to Linux from Solaris?"},"content":{"rendered":"<p><a href=\"http:\/\/www.oracle.com\/us\/corporate\/press\/018363\">Oracle&#8217;s acquisition of Sun Microsystems<\/a> has probably caused a few concerns for Sun customers and, today, <a href=\"http:\/\/www.oracle.com\/features\/suncustomers.html\"><img data-recalc-dims=\"1\" decoding=\"async\" src=\"https:\/\/i0.wp.com\/www.markwilson.co.uk\/blog\/images\/oracle-sun.gif?w=700&#038;ssl=1\" alt=\"Oracle message to Sun customers\" class=\"alternate\" \/><\/a><a href=\"http:\/\/www.oracle.com\/features\/suncustomers.html\">Oracle reaffirmed their commitment to Sun&#8217;s Solaris operating system and SPARC-based hardware<\/a> with a statement from Oracle CEO, Larry Ellison, that tells customers they plan to invest in the Solaris and SPARC platforms, including tighter integration with Oracle software.<\/p>\n<p>Nevertheless, as one of my colleagues pointed out to me today, it costs billions to create new microprocessors and more and more customers are starting to consider running Unix workloads on industry standard x64 servers. With significant differences between the x64 and SPARC versions of Solaris, it&#8217;s not surprising that, faced with an uncertain future for Sun, organisations may consider Linux as an alternative and, a few weeks back, I attended a webcast given by Red Hat and HP that looked at some of the issues.<\/p>\n<p>I&#8217;m no Linux or Unix expert but I made a few notes during that webcast, and thought they might be useful to others so I&#8217;m sharing them here:<\/p>\n<ul>\n<li>Reasons to migrate to Linux (from Unix):\n<ul>\n<li>Tactical business drivers: reduce support costs (on end of life server hardware); increase capability with upgraded enterprise applications; improve performance and reduce cost by porting custom applications.<\/li>\n<li>Strategic business drivers: simplify and consolidate; accelerate service development; reduce infrastructure costs.<\/li>\n<\/ul>\n<\/li>\n<li>HP has some tools to assist with the transition, including:\n<ul>\n<li>Solaris to Linux <a href=\"http:\/\/hp.com\/go\/stk\">software transition kit (STK)<\/a>&#8211; which , although aimed at migrating to HP-UX, this joint presentation between HP and Red Hat suggested using it to plan and estimate the effort in migrating to Linux with C and C++ source code, shell scripts and makefiles for tools that can scan applications for transition impacts.<\/li>\n<li><a href=\"http:\/\/hp.com\/go\/slpk\">Solaris to Linux porting kit (SLPK)<\/a>which includes compiler tools, libraries, header files and source scanners to recompile Solaris applications for either Red Hat or\u00c2\u00a0SUSE Linux\u00c2\u00a0running on\u00c2\u00a0<a href=\"https:\/\/www.markwilson.co.uk\/blog\/2009\/07\/a-quick-introduction-to-hp-proliant-servers.htm\">HP ProLiant servers<\/a>.<\/li>\n<\/ul>\n<\/li>\n<li>The top 5 issues likely to affect a transition are:\n<ol>\n<li>Complier issues &#8211; differing development environments.<\/li>\n<li>ANSI C\/C++ compliance &#8211; depending on the conformance to standards of the source code and compiler, there may be interface changes, namespace changes, library differences, and warnings may become errors.<\/li>\n<li>Endianness &#8211; SPARC uses a big-endian system, Linux is little-endian.\u00c2\u00a0 This is most likely to affect data exchange\/communications between platforms with access to shared memory and to binary data structures in files.<\/li>\n<li>Differences in commands, system calls and tools &#8211; whether they are user level commands (e.g. a Solaris <code>ping<\/code> will return a message that a host is alive whereas a Linux <code>ping<\/code> will continue until interrupted), systems management commands, system API calls, software management (for package management) or operating system layered products (e.g. performance management, high availability or systems management).<\/li>\n<li>ISV product migration with issues around the availability of Linux versions of software; upgrades; and data migration.<\/li>\n<\/ol>\n<\/li>\n<li>When planning a migration, the strategic activities are:\n<ul>\n<li>Solaris vs. Linux ecosystem analysis.<\/li>\n<li>Functional application analysis.<\/li>\n<li>Organisational readiness and risk analysis.<\/li>\n<li>Strategic migration roadmap creation.<\/li>\n<li>Migration implementation.<\/li>\n<\/ul>\n<\/li>\n<li>Because of the differences between operating systems, it may be that some built-in functions need to be replaced by infrastructure applications (or vice versa). Indeed, there are four main scenarios to consider:\n<ul>\n<li>Solaris built-in function to Linux built-in function (and although many functions may map directly others, e.g. virtualisation approaches, may differ).<\/li>\n<li>Solaris infrastructure application to Linux built-in function.<\/li>\n<li>Solaris infrastructure application to Linux infrastructure application.<\/li>\n<li>Solaris built-in function to Linux infrastructure application.<\/li>\n<\/ul>\n<\/li>\n<li>Finally, when it comes to deployment there are also a number of scenarios to consider:\n<ul>\n<li>Consolidation: Many Sun servers (e.g. Enterprise 420R) to fewer industry standard servers (e.g. HP ProLiant).<\/li>\n<li>Aggregation: Sun Fire V890\/V490 servers to Itanium-based servers (e.g. HP Integrity).<\/li>\n<li>Dispersion: Sun Fire E25K server(s) to several industry standard servers (e.g. HP ProLiant).<\/li>\n<li>Cloud migration: Sun servers to Linux-based cloud offerings, such as those offered by Amazon, RackSpace, etc.<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n<p>Many of these\u00c2\u00a0notes would be equally applicable when migrating between Unix variants &#8211; and at least there are tools available to assist. But, now I come to think of it, I guess the same approach can be applied to migrating from Unix\/Linux to Windows Server&#8230; oh, look out, is that flaming torches and pitchforks I see being brandished in my direction?<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Oracle&#8217;s acquisition of Sun Microsystems has probably caused a few concerns for Sun customers and, today, Oracle reaffirmed their commitment to Sun&#8217;s Solaris operating system and SPARC-based hardware with a statement from Oracle CEO, Larry Ellison, that tells customers they plan to invest in the Solaris and SPARC platforms, including tighter integration with Oracle software. &hellip; <a href=\"https:\/\/www.markwilson.co.uk\/blog\/2009\/09\/moving-to-linux-from-solaris.htm\" class=\"more-link\">Continue reading <span class=\"screen-reader-text\">Moving to Linux from Solaris?<\/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":[],"tags":[3,194,84],"class_list":["post-1515","post","type-post","status-publish","format-standard","hentry","tag-linux","tag-oracle","tag-solaris"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v27.7 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>Moving to Linux from Solaris? 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I'm sure I'll be writing more as I get to grips with Unix - an operating system\u2026","rel":"","context":"In \"Oracle (Sun) Solaris\"","block_context":{"text":"Oracle (Sun) Solaris","link":"https:\/\/www.markwilson.co.uk\/blog\/tag\/solaris"},"img":{"alt_text":"","src":"http:\/\/www.assoc-amazon.co.uk\/e\/ir?t=marsweblo-21&l=ur2&o=2","width":350,"height":200},"classes":[]},{"id":215,"url":"https:\/\/www.markwilson.co.uk\/blog\/2006\/01\/suns-university-challenge.htm","url_meta":{"origin":1515,"position":1},"title":"Sun&#8217;s university challenge","author":"Mark Wilson","date":"Thursday 12 January 2006","format":false,"excerpt":"Last week I blogged about Microsoft's contest for the New Year and here's Sun's - a university challenge to encourage programming students to create a new application or port an existing application to the Solaris platform. The winner gets $5,000 and their university gets $100,000 to spend on Sun equipment.\u2026","rel":"","context":"In \"Oracle (Sun) Solaris\"","block_context":{"text":"Oracle (Sun) Solaris","link":"https:\/\/www.markwilson.co.uk\/blog\/tag\/solaris"},"img":{"alt_text":"","src":"","width":0,"height":0},"classes":[]},{"id":220,"url":"https:\/\/www.markwilson.co.uk\/blog\/2005\/12\/didnt-get-far-with-linux-so-trying.htm","url_meta":{"origin":1515,"position":2},"title":"Didn&#8217;t get far with Linux so trying Solaris 10 now","author":"Mark Wilson","date":"Thursday 22 December 2005","format":false,"excerpt":"Last year, I blogged about how I was starting to look at Linux... well, I installed SUSE Linux but never really got much further. I didn't like the interface, I didn't like that all the tools had weird or mis-spelt names, and it all felt a bit amateur (Linux zealots,\u2026","rel":"","context":"In \"Oracle (Sun) Solaris\"","block_context":{"text":"Oracle (Sun) Solaris","link":"https:\/\/www.markwilson.co.uk\/blog\/tag\/solaris"},"img":{"alt_text":"","src":"","width":0,"height":0},"classes":[]},{"id":222,"url":"https:\/\/www.markwilson.co.uk\/blog\/2006\/01\/configuring-solaris-10-dhcp-client-to.htm","url_meta":{"origin":1515,"position":3},"title":"Configuring a Solaris 10 DHCP client to register with a Windows Server 2003 DNS server","author":"Mark Wilson","date":"Friday 20 January 2006","format":false,"excerpt":"Last week, I wrote about configuring a hostname for a Solaris 10 DHCP client. Alan Thompson very kindly left a comment on that post about using DHCP to set the hostname on the network (i.e. in the DNS) and I'm pleased to say that it works a treat on my\u2026","rel":"","context":"In \"DNS\"","block_context":{"text":"DNS","link":"https:\/\/www.markwilson.co.uk\/blog\/tag\/dns"},"img":{"alt_text":"","src":"","width":0,"height":0},"classes":[]},{"id":210,"url":"https:\/\/www.markwilson.co.uk\/blog\/2006\/01\/unknown-hostname-for-solaris-10-dhcp.htm","url_meta":{"origin":1515,"position":4},"title":"Unknown hostname for Solaris 10 DHCP client","author":"Mark Wilson","date":"Tuesday 10 January 2006","format":false,"excerpt":"When I installed Solaris 10 x86, my computer thought its hostname was unknown. Aside from being annoying, this seemed to be causing a few issues, so I set about trying to set it to a name of my choice. Using the uname -S hostname command set the hostname for me\u2026","rel":"","context":"In \"Oracle (Sun) Solaris\"","block_context":{"text":"Oracle (Sun) Solaris","link":"https:\/\/www.markwilson.co.uk\/blog\/tag\/solaris"},"img":{"alt_text":"","src":"","width":0,"height":0},"classes":[]},{"id":225,"url":"https:\/\/www.markwilson.co.uk\/blog\/2006\/01\/selecting-uk-keyboard-in-solaris-10.htm","url_meta":{"origin":1515,"position":5},"title":"Selecting a UK keyboard in Solaris 10","author":"Mark Wilson","date":"Sunday 22 January 2006","format":false,"excerpt":"Since I installed Solaris, I've been getting more and more annoyed with my keyboard pretending to be American (mostly with \" and @ being mixed up). Today, I needed to write a post which included a lot of UK currency symbols (\u00c2\u00a3 - pounds sterling) and rather than switching to\u2026","rel":"","context":"In \"Oracle (Sun) Solaris\"","block_context":{"text":"Oracle (Sun) Solaris","link":"https:\/\/www.markwilson.co.uk\/blog\/tag\/solaris"},"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\/1515","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=1515"}],"version-history":[{"count":0,"href":"https:\/\/www.markwilson.co.uk\/blog\/wp-json\/wp\/v2\/posts\/1515\/revisions"}],"wp:attachment":[{"href":"https:\/\/www.markwilson.co.uk\/blog\/wp-json\/wp\/v2\/media?parent=1515"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.markwilson.co.uk\/blog\/wp-json\/wp\/v2\/categories?post=1515"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.markwilson.co.uk\/blog\/wp-json\/wp\/v2\/tags?post=1515"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}