{"id":758,"date":"2009-08-07T09:19:21","date_gmt":"2009-08-06T23:19:21","guid":{"rendered":"http:\/\/nsrd.wordpress.com\/?p=758"},"modified":"2009-08-07T09:19:21","modified_gmt":"2009-08-06T23:19:21","slug":"manual-backups-and-the-quiet-option","status":"publish","type":"post","link":"https:\/\/nsrd.info\/blog\/2009\/08\/07\/manual-backups-and-the-quiet-option\/","title":{"rendered":"Manual backups and the &#8216;quiet&#8217; option"},"content":{"rendered":"<p>When you run a manual backup in NetWorker (e.g., via the &#8220;save&#8221; command), NetWorker will by default give you a file-by-file listing of what is being backed up. In theory this is helpful for manual backups, because <em>typically<\/em> we do manual backups to debug issues, not as part of the production backup process.<\/p>\n<p>If you&#8217;re wanting to do a manual backup <em>and<\/em> make it as high performance as possible, there&#8217;s an option you need to use: <em>quiet<\/em>. For the save command, it&#8217;s &#8220;-q&#8221;; for the GUI, it means going and bringing up a command prompt and learning how to use save*. You <em>can&#8217;t<\/em> turn off a file-by-file listing (currently at least) in the NetWorker <em>user<\/em> backup program.<\/p>\n<p>So, backing up from a Solaris system to a Linux NetWorker server, using gigabit ethernet and the same backup device (ADV_FILE) each time, here&#8217;s some examples of the impact of <em>viewing<\/em> the per-file progress of the backup. (Each backup was run three times, with the run-time averaged.)<\/p>\n<ol>\n<li>Backing up 77,822 files:\n<ul>\n<li>Without per-file listing: 53 minutes, 11 seconds.<\/li>\n<li>With per-file listing: 55 minutes, 35 seconds.<\/li>\n<\/ul>\n<\/li>\n<li>Backing up 3,710,475 files:\n<ul>\n<li>Without per-file listing: 1 hour, 38 minutes, 30 seconds.<\/li>\n<li>With per-file listing: 1 hour, 56 minutes, 9 seconds.<\/li>\n<\/ul>\n<\/li>\n<\/ol>\n<p>The time taken to print each file will be dependent on the performance of the console device you&#8217;re using. The above tests were run from an GigE ssh session from another host to the Sun client. (For instance, this problem also occurs in recoveries: I remember once running a recovery via a Sun serial console where I waited 6 hours for the recovery to complete only to discover when all the files stopped printing that the recovery had finished <em>hours<\/em> ago.)<\/p>\n<p>The simple fact is \u2013 the more intensively you want to watch status of a backup (or for that matter, a recovery), the more you directly have an impact on its performance.<\/p>\n<p>&#8212;<br \/>\n* Honestly, you should anyway &#8211; see <a title=\"Quibbles - Client GUI\" href=\"https:\/\/nsrd.info\/blog\/2009\/03\/12\/quibbles-client-gui\/\" target=\"_blank\">here for a good reason<\/a>.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>When you run a manual backup in NetWorker (e.g., via the &#8220;save&#8221; command), NetWorker will by default give you a&hellip;<\/p>\n","protected":false},"author":1,"featured_media":0,"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":false,"jetpack_social_options":{"image_generator_settings":{"template":"highway","default_image_id":0,"font":"","enabled":false},"version":2}},"categories":[16],"tags":[138,575,732,779,1072],"class_list":["post-758","post","type-post","status-publish","format-standard","hentry","category-networker","tag-backup","tag-manual","tag-performance","tag-quiet","tag-verbose"],"aioseo_notices":[],"jetpack_publicize_connections":[],"jetpack_featured_media_url":"","jetpack_shortlink":"https:\/\/wp.me\/pKpIN-ce","jetpack_sharing_enabled":true,"jetpack_likes_enabled":true,"_links":{"self":[{"href":"https:\/\/nsrd.info\/blog\/wp-json\/wp\/v2\/posts\/758","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=758"}],"version-history":[{"count":0,"href":"https:\/\/nsrd.info\/blog\/wp-json\/wp\/v2\/posts\/758\/revisions"}],"wp:attachment":[{"href":"https:\/\/nsrd.info\/blog\/wp-json\/wp\/v2\/media?parent=758"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/nsrd.info\/blog\/wp-json\/wp\/v2\/categories?post=758"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/nsrd.info\/blog\/wp-json\/wp\/v2\/tags?post=758"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}