{"id":276,"date":"2025-10-10T10:08:59","date_gmt":"2025-10-10T10:08:59","guid":{"rendered":"https:\/\/raidzfscalculator.com\/?page_id=276"},"modified":"2026-02-15T23:54:43","modified_gmt":"2026-02-15T23:54:43","slug":"raid-recommender","status":"publish","type":"page","link":"https:\/\/raidzfscalculator.com\/en\/raid-recommender\/","title":{"rendered":"Raid recommender"},"content":{"rendered":"<p>[et_pb_section fb_built=&#8221;1&#8243; _builder_version=&#8221;4.27.4&#8243; _module_preset=&#8221;default&#8221; global_colors_info=&#8221;{}&#8221;][et_pb_row column_structure=&#8221;1_2,1_2&#8243; _builder_version=&#8221;4.27.4&#8243; _module_preset=&#8221;default&#8221; global_colors_info=&#8221;{}&#8221;][et_pb_column type=&#8221;1_2&#8243; _builder_version=&#8221;4.27.4&#8243; _module_preset=&#8221;default&#8221; global_colors_info=&#8221;{}&#8221;][et_pb_blurb url=&#8221;https:\/\/raidzfscalculator.com\/&#8221; image=&#8221;https:\/\/www.raidzfscalculator.com\/en\/wp-content\/uploads\/2025\/11\/icons8-la-france-48.png&#8221; alt=&#8221;RAID ZFS CALCULATOR FIO  RESULT VIEWER&#8221; _builder_version=&#8221;4.27.4&#8243; _module_preset=&#8221;default&#8221; global_colors_info=&#8221;{}&#8221;]<\/p>\n<p style=\"text-align: center;\"><strong>Site en Fran\u00e7ais<\/strong><\/p>\n<p>[\/et_pb_blurb][\/et_pb_column][et_pb_column type=&#8221;1_2&#8243; _builder_version=&#8221;4.27.4&#8243; _module_preset=&#8221;default&#8221; global_colors_info=&#8221;{}&#8221;][et_pb_blurb url=&#8221;https:\/\/www.raidzfscalculator.com\/en\/&#8221; image=&#8221;https:\/\/www.raidzfscalculator.com\/en\/wp-content\/uploads\/2025\/11\/icons8-grande-bretagne-48.png&#8221; alt=&#8221;RAID ZFS CALCULATOR FIO RESULT VIEWER&#8221; _builder_version=&#8221;4.27.4&#8243; _module_preset=&#8221;default&#8221; global_colors_info=&#8221;{}&#8221;]<\/p>\n<p style=\"text-align: center;\"><strong>Website in english<\/strong><\/p>\n<p>[\/et_pb_blurb][\/et_pb_column][\/et_pb_row][et_pb_row _builder_version=&#8221;4.16&#8243; global_colors_info=&#8221;{}&#8221;][et_pb_column type=&#8221;4_4&#8243; _builder_version=&#8221;4.16&#8243; custom_padding=&#8221;|||&#8221; global_colors_info=&#8221;{}&#8221; parallax__hover=&#8221;off&#8221; parallax_method__hover=&#8221;on&#8221; custom_padding__hover=&#8221;|||&#8221;][et_pb_divider color=&#8221;#1ca5ff&#8221; divider_weight=&#8221;16px&#8221; _builder_version=&#8221;4.16&#8243; max_width=&#8221;48px&#8221; locked=&#8221;off&#8221; global_colors_info=&#8221;{}&#8221;][\/et_pb_divider][et_pb_text _builder_version=&#8221;4.16&#8243; text_font=&#8221;||||||||&#8221; text_line_height=&#8221;2em&#8221; header_font=&#8221;Poppins|600|||||||&#8221; header_font_size=&#8221;50px&#8221; header_line_height=&#8221;1.3em&#8221; header_font_size_tablet=&#8221;30px&#8221; header_font_size_phone=&#8221;24px&#8221; header_font_size_last_edited=&#8221;on|phone&#8221; global_colors_info=&#8221;{}&#8221;]<\/p>\n<h1>Raid recommender<\/h1>\n<p>[\/et_pb_text][\/et_pb_column][\/et_pb_row][et_pb_row _builder_version=&#8221;4.27.4&#8243; _module_preset=&#8221;default&#8221; global_colors_info=&#8221;{}&#8221;][et_pb_column type=&#8221;4_4&#8243; _builder_version=&#8221;4.27.4&#8243; _module_preset=&#8221;default&#8221; global_colors_info=&#8221;{}&#8221;][et_pb_text _builder_version=&#8221;4.27.4&#8243; _module_preset=&#8221;default&#8221; global_colors_info=&#8221;{}&#8221;]<\/p>\n<h2>Finding the Ideal RAID Configuration: Target Capacity Calculator<\/h2>\n<p>&nbsp;<\/p>\n<p>The RAID Recommendation Calculator is the essential tool for transforming a storage goal (e.g., 80 TB of usable capacity) into a concrete hardware solution.<\/p>\n<p>Forget trial and error. This tool instantly analyzes the trade-offs between all RAID levels (from RAID 5 to RAIDZ3) and tells you exactly how many disks you need to reach or exceed your desired net capacity, taking into account the size of your disks.<\/p>\n<p>&nbsp;<\/p>\n<h3>How to Optimize Your Purchase?<\/h3>\n<p>&nbsp;<\/p>\n<ul>\n<li><strong>Capacity versus Tolerance<\/strong>: See clearly how the choice of a level (RAID 6 or RAID 10) impacts capacity efficiency and fault tolerance.<\/li>\n<li><strong>Minimum Purchase:<\/strong> Determine the minimum number of disks required. Avoid over-purchasing expensive equipment.<\/li>\n<li><strong>Instant Comparison:<\/strong> The tool generates a detailed comparison table of the best options, showing you the configuration that offers the best efficiency (percentage of usable capacity) for your purpose.<\/li>\n<\/ul>\n<p>Enter the usable capacity you need and the size of the disks you plan to buy, and our calculator will give you the most economical and reliable roadmap for your storage infrastructure.<\/p>\n<p>[\/et_pb_text][\/et_pb_column][\/et_pb_row][et_pb_row _builder_version=&#8221;4.27.4&#8243; _module_preset=&#8221;default&#8221; global_colors_info=&#8221;{}&#8221;][et_pb_column type=&#8221;4_4&#8243; _builder_version=&#8221;4.27.4&#8243; _module_preset=&#8221;default&#8221; global_colors_info=&#8221;{}&#8221;][et_pb_code _builder_version=&#8221;4.27.4&#8243; _module_preset=&#8221;default&#8221; global_colors_info=&#8221;{}&#8221;]        <style>\r\n        \/* Styles CSS pour la coh\u00e9rence *\/\r\n        .raid-calc{max-width:1200px;margin:0 auto;font-family:-apple-system,BlinkMacSystemFont,'Segoe UI',Roboto,sans-serif}\r\n        .calc-container{background:#fff;border-radius:12px;box-shadow:0 4px 20px rgba(0,0,0,.1);padding:30px;margin:20px 0}\r\n        .calc-title{font-size:2.5rem;font-weight:700;color:#1a202c;margin-bottom:20px;text-align:center}\r\n        .warning{background:linear-gradient(135deg,#fff7ed 0%,#fed7aa 100%);border-left:5px solid #f97316;border-radius:8px;padding:20px;margin-bottom:30px;display:flex;align-items:flex-start;gap:15px;color:#7c2d12}\r\n        .warning p{margin:0}\r\n        .form-row{display:flex;gap:20px;margin-bottom:20px;align-items:flex-end}\r\n        .form-group{flex:1;min-width:150px;}\r\n        .form-group label{display:block;margin-bottom:8px;font-weight:600;color:#2d3748}\r\n        .form-group input{width:100%;padding:10px;border:1px solid #e2e8f0;border-radius:6px;box-sizing:border-box}\r\n        .btn-calculate{padding:12px 25px;font-size:1rem;font-weight:600;color:#fff;background-color:#4c51bf;border:none;border-radius:6px;cursor:pointer;transition:background-color .3s}\r\n        .btn-calculate:hover{background-color:#3238a8}\r\n        .table-responsive{overflow-x:auto}\r\n        .reco-table{width:100%;border-collapse:collapse;margin-top:20px}\r\n        .reco-table th,.reco-table td{padding:12px 15px;text-align:left;border-bottom:1px solid #e2e8f0}\r\n        .reco-table thead th{background-color:#edf2f7;color:#2d3748;font-weight:700;text-transform:uppercase;font-size:.85rem}\r\n        .reco-table tbody tr:hover{background-color:#f7fafc}\r\n        .table-container{border:1px solid #e2e8f0;border-radius:8px;overflow:hidden;margin-top:30px}\r\n        <\/style>\r\n        <div class=\"raid-calc\">\r\n            <h1 class=\"calc-title\">RAID Recommender Tool<\/h1>\r\n            \r\n            <div id=\"inputForm\" class=\"calc-container\">\r\n                <div class=\"form-row\">\r\n                    <div class=\"form-group\">\r\n                        <label for=\"targetCapacity\">Required Net Target Capacity (TB):<\/label>\r\n                        <input type=\"number\" id=\"targetCapacity\" value=\"10\" min=\"1\" step=\"0.5\" required>\r\n                    <\/div>\r\n                    <div class=\"form-group\">\r\n                        <label for=\"diskSize\">Individual Disc Size (TB):<\/label>\r\n                        <input type=\"number\" id=\"diskSize\" value=\"2\" min=\"1\" step=\"0.5\" required>\r\n                    <\/div>\r\n                    <button id=\"calculateBtn\" class=\"btn-calculate\">Calculate \/ Refresh Recommendations<\/button>\r\n                <\/div>\r\n            <\/div>\r\n\r\n            <div id=\"calculatedResults\" class=\"calc-container table-container\" style=\"display:none;\">\r\n                <h2>Recommendation results<\/h2>\r\n                <p id=\"summaryMessage\"><\/p>\r\n                <div class=\"table-responsive\">\r\n                    <table class=\"reco-table\">\r\n                        <thead>\r\n                            <tr>\r\n                                <th>Configuration<\/th>\r\n                                <th>Total disks<\/th>\r\n                                <th>Net Capacity (TB)<\/th>\r\n                                <th>Raw Capacity (TB)<\/th>\r\n                                <th>Overhead (TB)<\/th>\r\n                                <th>Fault Tolerance<\/th>\r\n                                <th>Efficiency<\/th>\r\n                                <th>Comments<\/th>\r\n                            <\/tr>\r\n                        <\/thead>\r\n                        <tbody id=\"recoTableBody\">\r\n                            <\/tbody>\r\n                    <\/table>\r\n                <\/div>\r\n                <p class=\"warning\">\r\n                    <strong>Attention:<\/strong> These calculations are theoretical and do not include file system overhead (e.g., ZFS) or maximum capacity recommendations for certain RAID configurations. The 4PB raw limit is applied.\r\n                <\/p>\r\n            <\/div>\r\n        <\/div>\r\n        <script>\r\n        const UI = {\r\n            init: function() {\r\n                const calculateBtn = document.getElementById('calculateBtn');\r\n                \/\/ The button will now be present at all times and simply calls calculateRAID\r\n                if (calculateBtn) {\r\n                    calculateBtn.addEventListener('click', UI.calculateRAID);\r\n                }\r\n                \/\/ Run an initial calculation on load if the user provided default values\r\n                if (document.getElementById('targetCapacity').value && document.getElementById('diskSize').value) {\r\n                    UI.calculateRAID();\r\n                }\r\n            },\r\n            \r\n            calculateRAID: function() {\r\n                const requiredCapacityTB = parseFloat(document.getElementById('targetCapacity').value);\r\n                const diskSizeTB = parseFloat(document.getElementById('diskSize').value);\r\n                \r\n                if (isNaN(requiredCapacityTB) || isNaN(diskSizeTB) || requiredCapacityTB <= 0 || diskSizeTB <= 0) {\r\n                    alert('Please enter valid values for the target capacity and disk size..');\r\n                    return;\r\n                }\r\n\r\n                \/\/ NOUVEAU: Limite de capacit\u00e9 brute \u00e0 4 P\u00e9taoctets (4000 TB)\r\n                const MAX_GROSS_CAPACITY_TB = 4000;\r\n                \/\/ NOUVEAU: Limite pratique pour un seul array RAID traditionnel (RAID 5\/6)\r\n                const MAX_TRADITIONAL_RAID_VDEVS = 16; \r\n\r\n                \/\/ D\u00e9finition des configurations RAID, des disques minimum et de la formule de capacit\u00e9 nette\r\n                const raidConfigs = [\r\n                    { name: 'RAID 1', minDisks: 2, capacityFormula: (d, s) => Math.floor(d \/ 2) * s, faultTolerance: '1 Disk', efficiency: '50%', comment: 'High performance in random read\/write.' },\r\n                    { name: 'RAID 5', minDisks: 3, capacityFormula: (d, s) => (d - 1) * s, faultTolerance: '1 Disk', efficiency: '(n-1)\/n', isTraditional: true },\r\n                    { name: 'RAID 6', minDisks: 4, capacityFormula: (d, s) => (d - 2) * s, faultTolerance: '2 Disk', efficiency: '(n-2)\/n', isTraditional: true },\r\n                    { name: 'RAID 10', minDisks: 4, capacityFormula: (d, s) => Math.floor(d \/ 2) * s, faultTolerance: 'until n\/2 (if in different mirror)', efficiency: '50%', comment: 'Improved I\/O performance for critical applications.' },\r\n                    \r\n                    \/\/ Erasure Coding & ZFS (Optimis\u00e9 pour les grands pools\/vdevs)\r\n                    { name: 'Erasure Coding (EC) - Conservative', minDisks: 4, capacityFormula: (d, s) => (d - 2) * s, faultTolerance: '2 Disks\/Chunks', efficiency: '(n-2)\/n', comment: 'N-2 protection, similar to RAID-Z2. Recommended for large distributed pools.' },\r\n                    { name: 'Seagate ADAPT (EC) - Conservative', minDisks: 4, capacityFormula: (d, s) => (d - 2) * s, faultTolerance: '2 Disks\/Chunks', efficiency: '(n-2)\/n', comment: 'ADAPT technology (N-2 protection). Recommended for 12+ disks.' },\r\n                    { name: 'ZFS RAID-Z1', minDisks: 3, capacityFormula: (d, s) => (d - 1) * s, faultTolerance: '1 Disk', efficiency: '(n-1)\/n', comment: 'Similar to RAID 5, recommended for a maximum of 8 disks per vdev.' },\r\n                    { name: 'ZFS RAID-Z2', minDisks: 4, capacityFormula: (d, s) => (d - 2) * s, faultTolerance: '2 Disks', efficiency: '(n-2)\/n', comment: 'Similar to RAID 6. Best choice for ZFS reliability.' },\r\n                    { name: 'ZFS RAID-Z3', minDisks: 5, capacityFormula: (d, s) => (d - 3) * s, faultTolerance: '3 Disks', efficiency: '(n-3)\/n' }\r\n                ];\r\n                \r\n                let htmlContent = '';\r\n\r\n                \/\/ Boucle de calcul pour chaque configuration RAID\r\n                for (const config of raidConfigs) {\r\n                    const { name: raid, minDisks, capacityFormula, faultTolerance, efficiency } = config;\r\n                    let comment = config.comment || 'Standard';\r\n                    let currentDisks = minDisks;\r\n                    \r\n                    while (true) {\r\n                        const netCapacityTB = capacityFormula(currentDisks, diskSizeTB);\r\n                        const grossCapacityTB = currentDisks * diskSizeTB;\r\n                        \r\n                        \/\/ Condition pour atteindre ou d\u00e9passer la capacit\u00e9 cible\r\n                        if (netCapacityTB >= requiredCapacityTB) {\r\n                            const overheadTB = grossCapacityTB - netCapacityTB;\r\n\r\n                            \/\/ NOUVEAU: Logique pour les limites des arrays RAID traditionnels (RAID 5, RAID 6)\r\n                            if (config.isTraditional && currentDisks > MAX_TRADITIONAL_RAID_VDEVS) {\r\n                                const numArrays = Math.ceil(currentDisks \/ MAX_TRADITIONAL_RAID_VDEVS);\r\n                                \r\n                                \/\/ On modifie le commentaire pour indiquer la n\u00e9cessit\u00e9 de plusieurs arrays\r\n                                const arraysText = numArrays > 1 ? `\u26a0\ufe0f Require **${numArrays} arrays** physical ou logical.` : '';\r\n                                comment = `${arraysText} ${comment}`;\r\n                            }\r\n\r\n                            htmlContent += `\r\n                                <tr>\r\n                                    <td>${raid}<\/td>\r\n                                    <td>${currentDisks}<\/td>\r\n                                    <td>${netCapacityTB.toFixed(2)} TB<\/td>\r\n                                    <td>${grossCapacityTB.toFixed(2)} TB<\/td>\r\n                                    <td>${overheadTB.toFixed(2)} TB<\/td>\r\n                                    <td>${faultTolerance}<\/td>\r\n                                    <td>${efficiency}<\/td>\r\n                                    <td>${comment}<\/td>\r\n                                <\/tr>\r\n                            `;\r\n                            break; \/\/ Passer au RAID suivant\r\n                        }\r\n\r\n                        \/\/ Augmenter le nombre de disques pour le prochain test\r\n                        if (raid === 'RAID 10') {\r\n                            currentDisks += 2; \/\/ RAID 10 doit monter par paires\r\n                        } else {\r\n                            currentDisks++;\r\n                        }\r\n                        \r\n                        \/\/ Limite de s\u00e9curit\u00e9 (4 PB)\r\n                        if (grossCapacityTB >= MAX_GROSS_CAPACITY_TB) break;\r\n                    }\r\n                }\r\n\r\n                \/\/ Affichage des r\u00e9sultats\r\n                document.getElementById('recoTableBody').innerHTML = htmlContent;\r\n                document.getElementById('summaryMessage').innerHTML = `\r\n                    Analysis of configurations for a target capacity of <strong>${requiredCapacityTB} TB<\/strong>, using disks of <strong>${diskSizeTB} TB<\/strong>.\r\n                `;\r\n\r\n                \/\/ NOUVEAU: S'assurer que les r\u00e9sultats sont visibles apr\u00e8s le calcul\/rafra\u00eechissement\r\n                document.getElementById('calculatedResults').style.display = 'block';\r\n            }\r\n        };\r\n        \r\n        \/\/ D\u00e9marrer l'application une fois le DOM charg\u00e9\r\n        document.addEventListener('DOMContentLoaded', UI.init);\r\n        <\/script>\r\n        [\/et_pb_code][et_pb_text _builder_version=&#8221;4.27.5&#8243; _module_preset=&#8221;default&#8221; hover_enabled=&#8221;0&#8243; sticky_enabled=&#8221;0&#8243;]<\/p>\n<p data-path-to-node=\"17,0\"><b data-path-to-node=\"17,0\" data-index-in-node=\"0\">How to Choose the Right RAID Level?<\/b> Selecting a RAID configuration is a balance between three pillars: <b data-path-to-node=\"17,0\" data-index-in-node=\"103\">Performance, Capacity, and Redundancy<\/b>.<\/p>\n<ul data-path-to-node=\"17,1\">\n<li>\n<p data-path-to-node=\"17,1,0,0\">If you need <b data-path-to-node=\"17,1,0,0\" data-index-in-node=\"12\">maximum speed<\/b> and don&#8217;t care about data loss: <b data-path-to-node=\"17,1,0,0\" data-index-in-node=\"58\">RAID 0<\/b>.<\/p>\n<\/li>\n<li>\n<p data-path-to-node=\"17,1,1,0\">If you need <b data-path-to-node=\"17,1,1,0\" data-index-in-node=\"12\">maximum safety<\/b> for critical data: <b data-path-to-node=\"17,1,1,0\" data-index-in-node=\"46\">RAID 1<\/b> or <b data-path-to-node=\"17,1,1,0\" data-index-in-node=\"56\">RAID 6<\/b>.<\/p>\n<\/li>\n<li>\n<p data-path-to-node=\"17,1,2,0\">If you want the <b data-path-to-node=\"17,1,2,0\" data-index-in-node=\"16\">best balance<\/b> for a home NAS: <b data-path-to-node=\"17,1,2,0\" data-index-in-node=\"45\">RAID 5<\/b> or <b data-path-to-node=\"17,1,2,0\" data-index-in-node=\"55\">RAIDZ1<\/b>. Our RAID Recommender takes the guesswork out of the process by asking you the right questions about your hardware and goals.<\/p>\n<\/li>\n<\/ul>\n<p>&nbsp;<\/p>\n<p>If you choose a RAID level with high write overhead, make sure to check your <response-element class=\"\" ng-version=\"0.0.0-PLACEHOLDER\"><link-block _nghost-ng-c100520751=\"\" class=\"ng-star-inserted\"><a _ngcontent-ng-c100520751=\"\" target=\"_blank\" rel=\"noopener\" externallink=\"\" _nghost-ng-c2086529133=\"\" jslog=\"197247;track:generic_click,impression,attention;BardVeMetadataKey:[[&quot;r_f279d2b51935a743&quot;,&quot;c_712fc19e2862d3fd&quot;,null,&quot;rc_c3a24b95c58f3b04&quot;,null,null,&quot;fr&quot;,null,1,null,null,1,0]]\" href=\"https:\/\/www.google.com\/search?q=\/en\/ssd-endurance-calculator\/\" class=\"ng-star-inserted\" data-hveid=\"0\" decode-data-ved=\"1\" data-ved=\"0CAAQ_4QMahcKEwjUxPXtytySAxUAAAAAHQAAAAAQXQ\">SSD endurance<\/a><\/link-block><\/response-element>.<\/p>\n<p>[\/et_pb_text][\/et_pb_column][\/et_pb_row][\/et_pb_section]<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Le Calculateur de Recommandation RAID ( RAID recommender) est l\u2019outil indispensable pour transformer un objectif de stockage (par exemple, 80 To utiles) en une solution mat\u00e9rielle concr\u00e8te<\/p>\n","protected":false},"author":1,"featured_media":366,"parent":0,"menu_order":0,"comment_status":"closed","ping_status":"closed","template":"","meta":{"_et_pb_use_builder":"on","_et_pb_old_content":"","_et_gb_content_width":"","footnotes":""},"class_list":["post-276","page","type-page","status-publish","has-post-thumbnail","hentry"],"_links":{"self":[{"href":"https:\/\/raidzfscalculator.com\/en\/wp-json\/wp\/v2\/pages\/276","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/raidzfscalculator.com\/en\/wp-json\/wp\/v2\/pages"}],"about":[{"href":"https:\/\/raidzfscalculator.com\/en\/wp-json\/wp\/v2\/types\/page"}],"author":[{"embeddable":true,"href":"https:\/\/raidzfscalculator.com\/en\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/raidzfscalculator.com\/en\/wp-json\/wp\/v2\/comments?post=276"}],"version-history":[{"count":5,"href":"https:\/\/raidzfscalculator.com\/en\/wp-json\/wp\/v2\/pages\/276\/revisions"}],"predecessor-version":[{"id":1085691,"href":"https:\/\/raidzfscalculator.com\/en\/wp-json\/wp\/v2\/pages\/276\/revisions\/1085691"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/raidzfscalculator.com\/en\/wp-json\/wp\/v2\/media\/366"}],"wp:attachment":[{"href":"https:\/\/raidzfscalculator.com\/en\/wp-json\/wp\/v2\/media?parent=276"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}