{"id":326,"date":"2009-04-23T18:02:09","date_gmt":"2009-04-23T08:02:09","guid":{"rendered":"http:\/\/nsrd.wordpress.com\/?p=326"},"modified":"2018-12-12T16:20:10","modified_gmt":"2018-12-12T06:20:10","slug":"ready-for-readingwriting-idle","status":"publish","type":"post","link":"https:\/\/nsrd.info\/blog\/2009\/04\/23\/ready-for-readingwriting-idle\/","title":{"rendered":"Ready for {reading|writing}, idle"},"content":{"rendered":"<p>Sometimes NetWorker adminsitrators find themselves gnashing their teeth over the following device\/media status messages:<\/p>\n<ul>\n<li>ready for reading, idle<\/li>\n<\/ul>\n<p><strong>or<\/strong><\/p>\n<ul>\n<li>ready for writing, idle<\/li>\n<\/ul>\n<p>Now, we often see these messages <em>briefly<\/em> during normal backup, cloning, recovery or staging operations. Where the teeth gnashing tends to start is when a device\/volume sits in that state for an extended period of time.<\/p>\n<p>The problem I find is that when a device\/volume appears to be wedged in this state people start looking at the <em>wrong things<\/em>. 99.9999% of the time this message <em>does not<\/em> indicate there&#8217;s an issue with the device or volume that is &#8220;ready\/idle&#8221;, but there&#8217;s an issue <em>elsewhere<\/em>.<\/p>\n<p>This message means: &#8220;the device is ready, and waiting, but currently inactive&#8221;. So you have to ask yourself when a device\/volume is wedged in this position &#8211; what is it <em>waiting<\/em> for? This is why the answer <em>isn&#8217;t<\/em> to investigate that device or volume, but to look at other activity.<\/p>\n<p>Consider the following examples:<\/p>\n<ul>\n<li>In a disk to tape cloning operation, a disk backup unit may be reported as &#8220;ready for reading, idle&#8221;. Chances are NetWorker is waiting for something to clone <em>to<\/em>. So check to see why media isn&#8217;t being made available for <em>writing<\/em>.<\/li>\n<li>In a tape to tape cloning operation, a tape device unit may be reported as &#8220;ready for writing, idle&#8221;. So that means that it&#8217;s waiting for something to <em>read from<\/em> \u2013 maybe something is preventing the mount of the read volume? Or maybe the read volume is being read from for something else? (E.g., a recovery).<\/li>\n<\/ul>\n<p>In very, very few cases the ready\/idle state is the default of the device that&#8217;s in the idle state, but my recommendation is that if you&#8217;ve got a device wedged in this state, you need to look <em>elsewhere<\/em> to see why NetWorker isn&#8217;t able to send data to, or retrieve data from the device\/volume.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Sometimes NetWorker adminsitrators find themselves gnashing their teeth over the following device\/media status messages: ready for reading, idle or ready&hellip;<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_jetpack_newsletter_access":"","_jetpack_dont_email_post_to_subs":false,"_jetpack_newsletter_tier_id":0,"_jetpack_memberships_contains_paywalled_content":false,"_jetpack_feature_clip_id":0,"_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},"jetpack_post_was_ever_published":false},"categories":[16],"tags":[318,453],"class_list":["post-326","post","type-post","status-publish","format-standard","hentry","category-networker","tag-device-wedged","tag-idle"],"aioseo_notices":[],"aioseo_head":"\n\t\t<!-- All in One SEO 4.9.10 - aioseo.com -->\n\t<meta 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