{"id":7055,"date":"2018-08-27T20:08:38","date_gmt":"2018-08-27T10:08:38","guid":{"rendered":"http:\/\/nsrd.info\/blog\/?p=7055"},"modified":"2018-12-11T07:20:24","modified_gmt":"2018-12-10T21:20:24","slug":"why-cheaper-isnt-cheapest-or-best","status":"publish","type":"post","link":"https:\/\/nsrd.info\/blog\/2018\/08\/27\/why-cheaper-isnt-cheapest-or-best\/","title":{"rendered":"Why cheaper isn&#8217;t cheapest, or best"},"content":{"rendered":"<p>I want to have a bit of a chat in this post about&nbsp;<em>cheap<\/em>. In particular, I want to get two key points across.<\/p>\n<ol>\n<li>Cheaper is not always better.<\/li>\n<li>Cheaper is not always cheapest.<\/li>\n<\/ol>\n<p>I&#8217;m going to start with a simple bit of family history for me: my father-in-law (soon to be formalised after almost 22 years) is a retired mechanic. Now, I&#8217;m not talking a mechanic who puts your car on a hoist and plugs a console into the on-board systems of your car to download diagnostics; I&#8217;m talking the sort of mechanic who can lay his hands on your bonnet while the engine is running, listen for a few minutes, and tell you with a fair degree of accuracy what, mechanically at least, is going wrong.<\/p>\n<p>Before I met my father-in-law, my general approach to buying anything mechanical was &#8216;cheaper is better&#8217;. If it was a choice between a $100 lawn-mower and a $400 lawn-mower, I&#8217;d get the $100 lawn-mower. If it was a choice between a $99 vacuum cleaner and a $400 vacuum cleaner, I&#8217;d get the $99 vacuum cleaner every time.<\/p>\n<p><a href=\"https:\/\/nsrd.info\/blog\/wp-content\/uploads\/2018\/08\/bigStock-Bad-Money.jpg\"><img loading=\"lazy\" decoding=\"async\" class=\"aligncenter size-full wp-image-7059\" src=\"https:\/\/nsrd.info\/blog\/wp-content\/uploads\/2018\/08\/bigStock-Bad-Money.jpg\" alt=\"Bad Money\" width=\"900\" height=\"600\" srcset=\"https:\/\/nsrd.info\/blog\/wp-content\/uploads\/2018\/08\/bigStock-Bad-Money.jpg 900w, https:\/\/nsrd.info\/blog\/wp-content\/uploads\/2018\/08\/bigStock-Bad-Money-300x200.jpg 300w, https:\/\/nsrd.info\/blog\/wp-content\/uploads\/2018\/08\/bigStock-Bad-Money-768x512.jpg 768w\" sizes=\"auto, (max-width: 900px) 100vw, 900px\" \/><\/a><\/p>\n<p>My reasoning always went along the lines of: sure, the $99 vacuum cleaner might break down sooner than the $400 vacuum cleaner, but it was cheap and could be thrown out and replaced. Over time I learnt the value of buying something that was mechanically sound and readily repairable, even if it cost me a little more initially. That $99 vacuum cleaner is technically cheaper, until you take into consideration that it runs at a quarter of the wattage as the $400 vacuum cleaner &#8211; and you&#8217;ll buy 3 in 3 years and throw each one out when it breaks down, whereas the $400 one might last you a decade or more, and be repairable.<\/p>\n<p>So here&#8217;s the first lesson: cheaper isn&#8217;t better. This isn&#8217;t a spectacularly new lesson; consider for instance the old adage, &#8220;the bitterness of poor quality remains long after the sweetness of low price is forgotten&#8221;. Yet a digital, consumerism economy can sometimes obscure this fact. We have to keep it in mind when we&#8217;re looking at options, and consider the bigger picture. (That sometimes means even considering the intangibles: that &#8216;bargain&#8217; may be half the price, but if using it costs you double the time, have you achieved anything?)<\/p>\n<p>Now, the second lesson is more something I&#8217;ve come to appreciate working with deduplication: <em>cheaper<\/em> isn&#8217;t necessarily <em>cheapest<\/em>. This is essentially a recommendation to look not at a simplistic price comparison, but a&nbsp;<em>value<\/em> comparison: do you establish the cost of a solution by the sum of its constituent pricing, or the result it delivers to you?<\/p>\n<p>Let&#8217;s say you need a solution that will provide protection for your environment, and you get two responses:<\/p>\n<ul>\n<li>&#8220;I can sell you 100TB of usable storage for $100.&#8221;<\/li>\n<li>&#8220;I can sell you 100TB of usable storage for $150.&#8221;<\/li>\n<\/ul>\n<p>(Of course, I&#8217;m just using simplified numbers there to keep things straight forward.)<\/p>\n<p>Now, on the face of it, the first one is cheaper, right? But let&#8217;s qualify a little bit more:<\/p>\n<ul>\n<li>The first option will offer 8:1 deduplication<\/li>\n<li>The second option will offer 25:1 deduplication<\/li>\n<\/ul>\n<p>This is where we look for&nbsp;<em>value<\/em> to define&nbsp;<em>cheapest<\/em>. If I get 100 TB of usable storage for $100 and that has an 8:1 deduplication ratio, that means I&#8217;m getting 800 TB of logical storage for $100. But, if I get 100 TB of usable storage for $100 and that has a 25:1 deduplication ratio, that means I&#8217;m getting 2.5PB of logical storage for $150. The net result? In terms of backups that can be stored, the&nbsp;<em>cheaper<\/em> solution will cost you 12.5c per TB stored; the more expensive solution will cost you 6c per TB stored. The <em>cheaper<\/em> solution is not the <em>cheapest<\/em>.<\/p>\n<p>You know that because you can see the answer in the question, &#8216;which gives you greater <em>value<\/em>?&#8217;<\/p>\n<p>Yes, again, I&#8217;ve made the prices up, but this isn&#8217;t about the specific numbers I&#8217;ve used: it&#8217;s about the comparison you need to make when comparing two different deduplication systems. It&#8217;s one on delivered value.&nbsp;When you&#8217;re looking at data protection solutions, it&#8217;s always important to remember: cheaper doesn&#8217;t mean <em>better<\/em>, and equally, cheaper doesn&#8217;t mean <em>cheapest<\/em>.<\/p>\n<p>As soon as you start to get into something that you&#8217;re buying for a&nbsp;<em>function<\/em>, to solve a&nbsp;<em>problem<\/em>, then the cost should become just&nbsp;<em>one<\/em> factor to consider, and you need to ensure you understand what value the solution gives you.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>I want to have a bit of a chat in this post about&nbsp;cheap. In particular, I want to get two&hellip;<\/p>\n","protected":false},"author":1,"featured_media":7059,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"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":true,"jetpack_social_options":{"image_generator_settings":{"template":"highway","default_image_id":0,"font":"","enabled":false},"version":2}},"categories":[3,5],"tags":[1467,1471,1468,1470,1469],"class_list":["post-7055","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-architecture","category-backup-theory","tag-cheap","tag-logical","tag-price","tag-usable","tag-value"],"aioseo_notices":[],"jetpack_publicize_connections":[],"jetpack_featured_media_url":"https:\/\/nsrd.info\/blog\/wp-content\/uploads\/2018\/08\/bigStock-Bad-Money.jpg","jetpack_shortlink":"https:\/\/wp.me\/pKpIN-1PN","jetpack_sharing_enabled":true,"jetpack_likes_enabled":true,"_links":{"self":[{"href":"https:\/\/nsrd.info\/blog\/wp-json\/wp\/v2\/posts\/7055","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/nsrd.info\/blog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/nsrd.info\/blog\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/nsrd.info\/blog\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/nsrd.info\/blog\/wp-json\/wp\/v2\/comments?post=7055"}],"version-history":[{"count":10,"href":"https:\/\/nsrd.info\/blog\/wp-json\/wp\/v2\/posts\/7055\/revisions"}],"predecessor-version":[{"id":7343,"href":"https:\/\/nsrd.info\/blog\/wp-json\/wp\/v2\/posts\/7055\/revisions\/7343"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/nsrd.info\/blog\/wp-json\/wp\/v2\/media\/7059"}],"wp:attachment":[{"href":"https:\/\/nsrd.info\/blog\/wp-json\/wp\/v2\/media?parent=7055"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/nsrd.info\/blog\/wp-json\/wp\/v2\/categories?post=7055"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/nsrd.info\/blog\/wp-json\/wp\/v2\/tags?post=7055"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}