{"id":43151,"date":"2015-10-08T09:07:28","date_gmt":"2015-10-08T16:07:28","guid":{"rendered":"https:\/\/www.backblaze.com\/blog\/?p=43151"},"modified":"2026-05-15T09:39:50","modified_gmt":"2026-05-15T16:39:50","slug":"b2-cloud-storage-frequent-questions","status":"publish","type":"post","link":"https:\/\/www.backblaze.com\/blog\/b2-cloud-storage-frequent-questions\/","title":{"rendered":"Backblaze B2 Cloud Storage Frequent Questions"},"content":{"rendered":"<p><img loading=\"lazy\" decoding=\"async\" class=\"aligncenter size-full wp-image-43161\" src=\"https:\/\/www.backblaze.com\/blog\/wp-content\/uploads\/2015\/10\/blog-b2-questions.jpg\" alt=\"blog-b2-questions\" width=\"720\" height=\"405\" srcset=\"https:\/\/backblazeprod.wpenginepowered.com\/wp-content\/uploads\/2015\/10\/blog-b2-questions.jpg 720w, https:\/\/backblazeprod.wpenginepowered.com\/wp-content\/uploads\/2015\/10\/blog-b2-questions-300x169.jpg 300w, https:\/\/backblazeprod.wpenginepowered.com\/wp-content\/uploads\/2015\/10\/blog-b2-questions-560x315.jpg 560w, https:\/\/backblazeprod.wpenginepowered.com\/wp-content\/uploads\/2015\/10\/blog-b2-questions-220x124.jpg 220w\" sizes=\"auto, (max-width: 720px) 100vw, 720px\" \/><\/p>\n<div class=\"abstract\"><strong>Editor&#8217;s note:<\/strong>\u00a0 This post reflects pricing at the time it was published. P<span style=\"font-size: revert;\">lease refer to <\/span><a style=\"font-size: revert;\" href=\"https:\/\/www.backblaze.com\/cloud-storage\/pricing\" target=\"_blank\" rel=\"noopener\"><span class=\"s1\">Backblaze Pricing Comparison<\/span><\/a><span style=\"font-size: revert;\">\u00a0for the latest information.\u00a0<\/span><\/div>\n<p id=\"bzdropcap\">We\u2019ve had a lot of interest and many questions since announcing Backblaze <a href=\"https:\/\/www.backblaze.com\/cloud-storage\/solutions\/media-workflow\">B2 Cloud Storage<\/a> last week and we want to thank you for engaging with us on our blog, <a href=\"https:\/\/www.reddit.com\/r\/DataHoarder\/comments\/3lykkz\/backblaze_b2_the_worlds_lowest_cost_cloud_storage\/\" target=\"_blank\" rel=\"noopener noreferrer\">Reddit<\/a>, and <a href=\"https:\/\/news.ycombinator.com\/item?id=10259507\" target=\"_blank\" rel=\"noopener noreferrer\">HackerNews<\/a>! I\u2019ve tried to collect some of the most commonly asked questions thus far and answer them here for those still curious. Don&#8217;t like reading? Watch this video:<\/p>\n<p style=\"text-align: center;\"><iframe loading=\"lazy\" src=\"https:\/\/www.youtube.com\/embed\/Ur3VbleDVL4\" width=\"560\" height=\"315\" frameborder=\"0\" allowfullscreen=\"allowfullscreen\"><\/iframe><\/p>\n<p><strong>Q. When will the Backblaze B2 beta start accepting waitlist members?<\/strong><br \/>\nA. We\u2019ve had a ton of sign-ups for the <a href=\"https:\/\/www.backblaze.com\/cloud-storage\" target=\"_blank\" rel=\"noopener noreferrer\">Backblaze B2 Cloud Storage<\/a> waitlist. We\u2019re currently putting the finishing touches on our internal alpha, and we\u2019re hoping to start rolling out the first batch in mid-October.<\/p>\n<p><strong>Q. How quickly will my invite be sent once the waitlist starts to open up?<\/strong><br \/>\nA. We\u2019ll be starting with a few invites and then increasing over the next two months. We\u2019ll be inviting based on when you signed up combined with the type of beta tester that would be most useful at the time, but we intend for everyone on the waitlist to try Backblaze B2 before it goes live for the masses.<\/p>\n<p><strong>Q. Speaking of going live to the masses, when will B2 Cloud Storage go live for the masses?<\/strong><br \/>\nA. We are targeting the end of 2015.<\/p>\n<p><strong>Q. Will Backblaze B2 be compatible with&#8230;?<\/strong><br \/>\nA. Probably! Backblaze B2 will act as the back-end infrastructure for a lot of things that need cloud object storage. We have a CLI, GUI, and a full set of RESTful APIs that will allow your favorite apps to tie in to the B2 Cloud Storage back end. Suggest apps you believe should use B2 Cloud Storage in the comments and we\u2019ll try to work with them to make it happen.<\/p>\n<p><strong>Q. How much would it cost to store &#8220;X&#8221; amount of data?<\/strong><br \/>\nA. We have tried to keep Backblaze B2&#8217;s <a href=\"https:\/\/www.backblaze.com\/case-studies\">cloud storage pricing<\/a> as simple as possible. Let\u2019s use 200GB as an example. All users get 10GB of free space. Uploading to Backblaze B2 is free, and storing 190GB (200GB minus the 10GB you get for free) on Backblaze B2 (at $0.005\/GB) would cost $0.95 per month\u2014less than a dollar. Now let&#8217;s assume you wish to download all 200GB of the data one day. You get 1GB of free downloads per day, so you need to pay $0.05\/GB for the remaining 199GB of data for a total of $9.95. If that\u2019s all you\u2019re doing, one simple upload and download, those are all the costs you\u2019ll incur.<\/p>\n<p><strong>Q. Could you explain the different transactions that you charge for?<\/strong><br \/>\nA. There are two transaction categories: \u201cDownload\u201d and \u201cOther.\u201d \u201cDownload\u201d includes any <a href=\"https:\/\/www.backblaze.com\/b2\/docs\/calling.html\">API calls<\/a> that would download a file or get the files info. \u201cOther\u201d includes, well, most any other API calls. You get 2,500 of each transaction category free per day. After that it\u2019s $0.004 per 10,000 \u201cdownload\u201d transactions and $0.004 per 1,000 \u201cother\u201d transactions. Uploading files, deleting files, deleting buckets, and <a href=\"https:\/\/www.backblaze.com\/b2\/docs\/b2_hide_file.html\">hiding files are all free<\/a>.<\/p>\n<p><strong>Q. This all sounds great, but what about durability?<\/strong><br \/>\nA. Backblaze stores each file redundantly across multiple drives, in multiple servers, and in multiple locations in our data center. For details on this, read our <a href=\"\/blog\/vault-cloud-storage-architecture\/\" target=\"_blank\" rel=\"noopener noreferrer\">post about Backblaze Vaults<\/a>. As a result, the Backblaze B2 Cloud Storage system is designed for 99.999999% durability. [7\/17\/2018: Updated annual durability to be calculated at 99.999999999%. See <a href=\"\/blog\/cloud-storage-durability\/\" target=\"_blank\" rel=\"noopener noreferrer\">&#8220;Backblaze Durability Is 99.999999999%\u2014And Why It Doesn\u2019t Matter<\/a>.&#8221;\u2014Ed.]<\/p>\n<p><strong>Q. How many data centers do you have?<\/strong><br \/>\nA. For now we have one data center, though we are actively looking to expand to more locations.<\/p>\n<p><strong>Q. Can I use B2 Cloud Storage like Dropbox or Box?<\/strong><br \/>\nA. Not quite. B2 Cloud Storage is what you would use to create a service like Dropbox or Box. It\u2019s the back-end for those systems. But if you\u2019re a programmer, have at it!<\/p>\n<p><strong>Q. Can I use Backblaze B2 for backup?<\/strong><br \/>\nA. Yes, but take a look at our cloud backup services first (for <a href=\"https:\/\/www.backblaze.com\/cloud-backup\/personal\" target=\"_blank\" rel=\"noopener noreferrer\">individuals<\/a> and <a href=\"https:\/\/www.backblaze.com\/cloud-backup\/business\" target=\"_blank\" rel=\"noopener noreferrer\">businesses<\/a>). Those services provide completely automatic backup with unlimited data for just $5\/month\/computer for Mac and PC laptops and desktops. If you want to store backup data for Linux, servers, NAS drives, etc., B2 Cloud Storage may be a good option for you\u2014using either the CLI, web interface, or the APIs.<\/p>\n<p>Thanks for all the questions so far, we\u2019ll try to keep answering them as best we can as more come in!<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Editor&#8217;s note:\u00a0 This post reflects pricing at the time it was published. Please refer to Backblaze Pricing Comparison\u00a0for the latest information.\u00a0 We\u2019ve had a lot of interest and many questions since announcing Backblaze B2 Cloud Storage last week and we want to thank you for engaging with us on our blog, Reddit, and HackerNews! I\u2019ve&hellip; <a class=\"more-link\" href=\"https:\/\/www.backblaze.com\/blog\/b2-cloud-storage-frequent-questions\/\">Continue reading <span class=\"screen-reader-text\">Backblaze B2 Cloud Storage Frequent Questions<\/span><\/a><\/p>\n","protected":false},"author":13,"featured_media":43161,"comment_status":"open","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"content-type":"","footnotes":""},"categories":[131],"tags":[291,468],"class_list":["post-43151","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-backblaze-bits","tag-b2","tag-b2cloud","entry"],"acf":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v27.6 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>How B2 Cloud Storage Works: Answers to Frequently Asked Questions<\/title>\n<meta name=\"description\" content=\"Since we launched B2 cloud storage we&#039;ve had a lot of questions about how the service works. In this post and video we answer those questions directly.\" \/>\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.backblaze.com\/blog\/b2-cloud-storage-frequent-questions\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"How B2 Cloud Storage Works: Answers to Frequently Asked Questions\" \/>\n<meta property=\"og:description\" content=\"Since we launched B2 cloud storage we&#039;ve had a lot of questions about how the service works. 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