{"id":1250,"date":"2023-06-12T10:00:00","date_gmt":"2023-06-12T01:00:00","guid":{"rendered":"https:\/\/www.hagisol.com\/techblog\/?p=1250"},"modified":"2024-07-16T14:18:24","modified_gmt":"2024-07-16T05:18:24","slug":"post-1250","status":"publish","type":"post","link":"https:\/\/www.hagisol.com\/techblog\/?p=1250","title":{"rendered":"How to choose an SSD (5\/5): How to choose the right SSD for You"},"content":{"rendered":"\n<div class=\"is-layout-flex wp-block-buttons\">\n<div class=\"wp-block-button has-custom-width wp-block-button__width-50\"><a class=\"wp-block-button__link has-white-color has-vivid-cyan-blue-background-color has-text-color has-background wp-element-button\" href=\"https:\/\/www.hagisol.com\/form\/contact.php\">Click here to contact us<\/a><\/div>\n<\/div>\n\n\n\n<figure class=\"wp-block-image size-large is-style-default\"><img decoding=\"async\" src=\"https:\/\/www.hagisol.com\/techblog\/wp-content\/uploads\/2022\/09\/AdobeStock_513525562-1024x683.jpeg\" alt=\"\" class=\"wp-image-1269\"\/><\/figure>\n\n\n\n<h2 id=\"outline__1\"><mark style=\"background-color:rgba(0, 0, 0, 0)\" class=\"has-inline-color has-vivid-cyan-blue-color\">Products mentioned in this article<\/mark><\/h2>\n\n\n\n<p>\u30fb<a rel=\"noreferrer noopener\" href=\"https:\/\/www.hagisol.com\/products\/storage\" target=\"_blank\">Industrial Storage Products<\/a><\/p>\n\n\n\n<h2 id=\"outline__2\"><mark style=\"background-color:rgba(0, 0, 0, 0)\" class=\"has-inline-color has-vivid-cyan-blue-color\">Disclaimer<\/mark><\/h2>\n\n\n\n<p>This is a revised version of&nbsp;<a rel=\"noreferrer noopener\" href=\"https:\/\/qiita.com\/ken-yossy\/items\/094533052380e9d3f96c\" target=\"_blank\">an article posted to Qiita in December 2019.<\/a><\/p>\n\n\n\n<h2 id=\"outline__3\"><mark style=\"background-color:rgba(0, 0, 0, 0)\" class=\"has-inline-color has-vivid-cyan-blue-color\">Introduction<\/mark><\/h2>\n\n\n\n<p>So far, we have introduced the following information on &#8220;Lifespan&#8221; and &#8220;Performance,&#8221; which are commonly referenced when selecting a Solid State Drive (SSD) with NAND flash memory.<\/p>\n\n\n\n<ul>\n<li><a rel=\"noreferrer noopener\" href=\"https:\/\/www.hagisol.com\/techblog\/?p=359\" target=\"_blank\">How to choose an SSD (1\/5): TBW is determined by how you use it!<\/a><\/li>\n\n\n\n<li><a rel=\"noreferrer noopener\" href=\"https:\/\/www.hagisol.com\/techblog\/?p=534\" target=\"_blank\">How to choose an SSD (2\/5): The true nature of TBW<\/a><\/li>\n\n\n\n<li><a rel=\"noreferrer noopener\" href=\"https:\/\/www.hagisol.com\/techblog\/?p=848\" target=\"_blank\">How to choose an SSD (3\/5): Usage that shortens its life1<\/a><\/li>\n\n\n\n<li><a rel=\"noreferrer noopener\" href=\"https:\/\/www.hagisol.com\/techblog\/?p=947\" target=\"_blank\">How to choose an SSD (4\/5): Usage that shortens the life of the SSD 2<\/a><\/li>\n<\/ul>\n\n\n\n<p>Since it may still be <strong>unclear how to choose an SSD<\/strong> based on the information provided, this article will serve as a comprehensive guide on &#8220;<strong>Choosing an SSD<\/strong>&#8221; as a summary of the entire series.<\/p>\n\n\n\n<h2 id=\"outline__4\"><mark style=\"background-color:rgba(0, 0, 0, 0)\" class=\"has-inline-color has-vivid-cyan-blue-color\">Summary<\/mark><\/h2>\n\n\n\n<ul>\n<li>Confirming how an SSD will be used is the first step in choosing the right SSD.<\/li>\n\n\n\n<li>The emphasis on different factors to consider when choosing an SSD varies depending on how it will be used.<\/li>\n<\/ul>\n\n\n\n<h2 id=\"outline__5\"><mark style=\"background-color:rgba(0, 0, 0, 0)\" class=\"has-inline-color has-vivid-cyan-blue-color\">SSD Selection Checklist<\/mark><\/h2>\n\n\n\n<p>As explained in the previous articles, the lifespan and performance of an SSD equipped with NAND flash memory <strong>heavily depend on how the SSD is used<\/strong>.<\/p>\n\n\n\n<p>Therefore, <strong>confirming the usage of the SSD<\/strong> is the first step in selecting the right SSD.<\/p>\n\n\n\n<p>The following table is an SSD selection checklist that focuses on the usage of the SSD. The &#8220;Items&#8221; column, such as &#8220;Proportion of Read and Write&#8221; and &#8220;Access Patterns,&#8221; represents the aspects related to the usage of the SSD.<\/p>\n\n\n\n<figure class=\"wp-block-image size-large is-style-default\"><img decoding=\"async\" src=\"https:\/\/www.hagisol.com\/techblog\/wp-content\/uploads\/2023\/06\/SSD-Selection-Checklist_En-1-1024x473.png\" alt=\"\" class=\"wp-image-1908\"\/><figcaption class=\"wp-element-caption\"><em>Matrix of SSD Selection Checklist<\/em><\/figcaption><\/figure>\n\n\n\n<p>When selecting an SSD, first go through each item in the table and determine which level (S to C) best matches the intended usage of the target SSD (either the closest match or exact match).<\/p>\n\n\n\n<p>Then, count how many items correspond to each level (S to C), and proceed to the next step based on the count.<br><a rel=\"noreferrer noopener\" href=\"https:\/\/camo.qiitausercontent.com\/764896c9d69e7b977ebfea8430b3c00aa3318b24\/68747470733a2f2f71696974612d696d6167652d73746f72652e73332e61702d6e6f727468656173742d312e616d617a6f6e6177732e636f6d2f302f3433393638332f36346564313432312d363433302d386436372d313936342d3634316136666563333564352e706e67\" target=\"_blank\"><\/a><\/p>\n\n\n\n<h2 id=\"outline__6\"><mark style=\"background-color:rgba(0, 0, 0, 0)\" class=\"has-inline-color has-vivid-cyan-blue-color\">How to Select an SSD&#8221; by usage<\/mark><\/h2>\n\n\n\n<p>The choice of SSD depends on how many items fall into each of the levels S through C in the table.<\/p>\n\n\n\n<p>Let&#8217;s look at how to use each of these one by one.<\/p>\n\n\n\n<h3 id=\"outline__6_1\"><a href=\"https:\/\/qiita.com\/ken-yossy\/items\/a585e5c41f0b495c72e9#%E3%83%AC%E3%83%99%E3%83%ABs%E3%81%8C%E3%81%B2%E3%81%A8%E3%81%A4%E3%81%A7%E3%82%82%E3%81%82%E3%82%8B%E3%82%B1%E3%83%BC%E3%82%B9\"><\/a><mark style=\"background-color:rgba(0, 0, 0, 0)\" class=\"has-inline-color has-vivid-cyan-blue-color\">If there is at least one &#8220;Level S<\/mark><\/h3>\n\n\n\n<p><strong>\uff1cSelection based on evaluation and testing at the operational level is necessary.\uff1e<\/strong><\/p>\n\n\n\n<p>If any of the items correspond to the criteria for &#8220;Level S,&#8221; it is necessary to exercise extreme caution when selecting an SSD.<\/p>\n\n\n\n<p>This is because <strong>there can be a significant discrepancy<\/strong> between the values and benchmark performances stated in catalogs and the actual operating conditions in terms of lifespan and performance.<\/p>\n\n\n\n<p>When choosing an SSD for such usage scenarios, <strong>it is advisable to integrate the SSD into the actual system<\/strong> and conduct performance evaluations, lifespan estimations, and other assessments using real workloads. This will help ensure that the selected SSD meets the required specifications.<\/p>\n\n\n\n<p>The availability and terms of <strong>manufacturer support (including any contractual agreements)<\/strong> can also be crucial factors to consider during the selection process.<\/p>\n\n\n\n<h3 id=\"outline__6_2\"><a href=\"https:\/\/qiita.com\/ken-yossy\/items\/a585e5c41f0b495c72e9#%E3%83%AC%E3%83%99%E3%83%ABa%E3%81%8C%E3%81%B2%E3%81%A8%E3%81%A4%E3%81%A7%E3%82%82%E3%81%82%E3%82%8B%E3%82%B1%E3%83%BC%E3%82%B9\"><\/a><mark style=\"background-color:rgba(0, 0, 0, 0)\" class=\"has-inline-color has-vivid-cyan-blue-color\">If there is at least one &#8220;Level A<\/mark><\/h3>\n\n\n\n<p><strong>\uff1cAs much capacity as possible! Enterprise SSDs can be an option.\uff1e<\/strong><\/p>\n\n\n\n<p>If there are no items that correspond to the criteria for &#8220;Level S,&#8221; but at least one item matches the criteria for &#8220;Level A,&#8221; it is advisable to choose an SSD with<strong> the largest possible capacity<\/strong>.<\/p>\n\n\n\n<p>This is because the criteria for &#8220;Level A&#8221; prioritize high performance and long lifespan (high reliability), and SSDs using NAND flash memory generally exhibit better performance and longer lifespan with larger capacities.<\/p>\n\n\n\n<p>In this usage scenario, enterprise-grade SSDs (also known as enterprise SSDs) may be more suitable. Evaluating enterprise SSDs is therefore another viable option.<\/p>\n\n\n\n<p>This is because many of the criteria for &#8220;Level A&#8221; closely align with the usage of SSDs in enterprise systems such as database systems and mission-critical systems.<\/p>\n\n\n\n<p><strong>Please note that &#8220;enterprise SSDs&#8221; mentioned here are distinct from &#8220;data center SSDs.&#8221;<\/strong><\/p>\n\n\n\n<p>Of course, if it is possible to evaluate performance and estimate lifespan based on real workloads, similar to the case where items correspond to the criteria for &#8220;Level S,&#8221; that would be the best approach.<\/p>\n\n\n\n<p>If such evaluation is not possible, choosing an SSD with a <strong>high-capacity is recommended<\/strong>.<\/p>\n\n\n\n<h3 id=\"outline__6_3\"><a href=\"https:\/\/qiita.com\/ken-yossy\/items\/a585e5c41f0b495c72e9#%E3%83%AC%E3%83%99%E3%83%ABb%E3%81%8C%E3%81%B2%E3%81%A8%E3%81%A4%E3%81%A7%E3%82%82%E3%81%82%E3%82%8B%E3%82%B1%E3%83%BC%E3%82%B9\"><\/a><mark style=\"background-color:rgba(0, 0, 0, 0)\" class=\"has-inline-color has-vivid-cyan-blue-color\">If there is at least one &#8220;Level B<\/mark><\/h3>\n\n\n\n<p><strong>\uff1cLife expectancy is a key criterion for selection! \uff1e<\/strong><\/p>\n\n\n\n<p>Pay attention even if it doesn&#8217;t match the criteria of &#8220;Level S&#8221; or &#8220;Level A,&#8221; if there is at least one criterion that matches the content of &#8220;Level B,&#8221; caution is required in selecting the SSD.<\/p>\n\n\n\n<p>When a criterion matches the content of &#8220;Level B,&#8221; particularly <strong>concerning the lifespan of NAND flash memory<\/strong> and, by extension, the lifespan of the SSD, it is essential to give thorough consideration.<\/p>\n\n\n\n<p>This is because the content of &#8220;Level B&#8221; applies demanding access patterns to NAND flash memory, affecting its data reliability and lifespan.<\/p>\n\n\n\n<p>In this usage scenario, it is advisable to gather information about the <strong>quality of the NAND flash memory<\/strong> used and the care provided by the SSD controller for <strong>NAND flash memory regarding lifespan<\/strong> and make a selection based on that information.<\/p>\n\n\n\n<p>One approach is to choose an SSD with the largest possible capacity, similar to when there are criteria matching the content of &#8220;Level A.&#8221;<\/p>\n\n\n\n<p>Of course, as with other usage scenarios, it is best to evaluate performance and estimate lifespan based on actual workloads whenever possible.<\/p>\n\n\n\n<h3 id=\"outline__6_4\"><a href=\"https:\/\/qiita.com\/ken-yossy\/items\/a585e5c41f0b495c72e9#%E3%83%AC%E3%83%99%E3%83%ABc%E3%81%AE%E5%86%85%E5%AE%B9%E3%81%AE%E3%81%BF%E8%A9%B2%E5%BD%93%E3%81%99%E3%82%8B%E3%82%B1%E3%83%BC%E3%82%B9\"><\/a><mark style=\"background-color:rgba(0, 0, 0, 0)\" class=\"has-inline-color has-vivid-cyan-blue-color\">Only the contents of &#8220;Level C&#8221; are applicable.<\/mark><\/h3>\n\n\n\n<p><strong>\uff1cThis is the most common use! But be careful, because it&#8217;s a mixed bag!\uff1e<\/strong><\/p>\n\n\n\n<p>If the criteria only match the content of &#8220;Level C,&#8221; there will be the <strong>most options available<\/strong> for selection.<\/p>\n\n\n\n<p>When considering factors such as price, capacity, manufacturer, or personal preferences, as long as the chosen SSD is the latest model at the time of selection, significant issues are unlikely to arise.<\/p>\n\n\n\n<p>However, having a wide range of options also means there is <strong>a variety of products available<\/strong> (with significant variations) in terms of performance, lifespan, quality, and other factors, which requires extra caution.<\/p>\n\n\n\n<p>In this usage scenario as well, it is advisable to choose a <strong>high-capacity product within the budgetary limits<\/strong>.<\/p>\n\n\n\n<p>Furthermore, if it is possible to <strong>evaluate performance based on actual workloads<\/strong> or estimate the lifespan, it is always recommended to perform such assessments.<\/p>\n\n\n\n<h2 id=\"outline__7\"><mark style=\"background-color:rgba(0, 0, 0, 0)\" class=\"has-inline-color has-vivid-cyan-blue-color\">Conclusion<\/mark><\/h2>\n\n\n\n<p>In the series of articles so far, misconceptions and key points regarding the selection and usage of SSDs using NAND flash memory have been summarized.<\/p>\n\n\n\n<p>NAND flash memory and the SSDs that incorporate it have become <strong>devices that require a correct understanding of their nature, especially with the increasing trend towards higher storage capacities<\/strong>. The way they are used can significantly impact their lifespan and performance.<\/p>\n\n\n\n<p>By gaining a proper understanding of the characteristics of SSDs, users can make better choices and optimize their usage according to their specific needs.<\/p>\n\n\n\n<p><\/p>\n\n\n\n<p class=\"has-small-font-size\">Trademarks of Other Companies<br>Although registered trademark marks are not indicated in the articles, company names and product names appearing in the articles are generally trademarks or registered trademarks of the respective companies.<\/p>\n\n\n\n<p><\/p>\n\n\n\n<p class=\"has-small-font-size\">About the article<br>The content of this article is information at the time of publication. Please note that the information is subject to change without notice.<\/p>\n\n\n\n<p><\/p>\n\n\n\n<h2 id=\"outline__8\" class=\"has-vivid-cyan-blue-color has-text-color\">Contact Us<\/h2>\n\n\n\n<p><\/p>\n\n\n\n<div class=\"is-layout-flex wp-block-buttons\">\n<div class=\"wp-block-button has-custom-width wp-block-button__width-50\"><a class=\"wp-block-button__link has-white-color has-vivid-cyan-blue-background-color has-text-color has-background wp-element-button\" href=\"https:\/\/www.hagisol.com\/form\/contact.php\">Click here to contact us<\/a><\/div>\n<\/div>\n","protected":false},"excerpt":{"rendered":"<p>This section explains &#8220;How to Select an SSD&#8221; as a summary of a series of articles on SSD lifespan and performance. The first step in selecting an SSD is to confirm &#8220;how to use an SSD.<\/p>\n","protected":false},"author":4,"featured_media":1269,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":[],"categories":[1,13,15],"tags":[23,24],"_links":{"self":[{"href":"https:\/\/www.hagisol.com\/techblog\/index.php?rest_route=\/wp\/v2\/posts\/1250"}],"collection":[{"href":"https:\/\/www.hagisol.com\/techblog\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.hagisol.com\/techblog\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.hagisol.com\/techblog\/index.php?rest_route=\/wp\/v2\/users\/4"}],"replies":[{"embeddable":true,"href":"https:\/\/www.hagisol.com\/techblog\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=1250"}],"version-history":[{"count":22,"href":"https:\/\/www.hagisol.com\/techblog\/index.php?rest_route=\/wp\/v2\/posts\/1250\/revisions"}],"predecessor-version":[{"id":1947,"href":"https:\/\/www.hagisol.com\/techblog\/index.php?rest_route=\/wp\/v2\/posts\/1250\/revisions\/1947"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.hagisol.com\/techblog\/index.php?rest_route=\/wp\/v2\/media\/1269"}],"wp:attachment":[{"href":"https:\/\/www.hagisol.com\/techblog\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=1250"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.hagisol.com\/techblog\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=1250"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.hagisol.com\/techblog\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=1250"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}