{"issue":{"state":"open","pull_request":{"diff_url":null,"html_url":null,"patch_url":null},"user":{"avatar_url":"https://secure.gravatar.com/avatar/2f03a7c0cc23a700fa7686ec97b1cd2d?d=https://a248.e.akamai.net/assets.github.com%2Fimages%2Fgravatars%2Fgravatar-140.png","gravatar_id":"2f03a7c0cc23a700fa7686ec97b1cd2d","url":"https://api.github.com/users/devsk","login":"devsk","id":627345},"milestone":{"state":"open","open_issues":32,"url":"https://api.github.com/repos/zfsonlinux/zfs/milestones/10","due_on":"2011-12-31T08:00:00Z","description":"ZFS on Linux v0.6.0 - Official stable release which includes the ZFS Posix Layer (ZPL)","number":10,"creator":{"avatar_url":"https://secure.gravatar.com/avatar/ea1f5fb7eefd51c5d308e2b78dbdf921?d=https://a248.e.akamai.net/assets.github.com%2Fimages%2Fgravatars%2Fgravatar-140.png","gravatar_id":"ea1f5fb7eefd51c5d308e2b78dbdf921","url":"https://api.github.com/users/behlendorf","login":"behlendorf","id":148917},"title":"0.6.0","closed_issues":21,"created_at":"2011-05-01T20:06:19Z"},"assignee":null,"labels":[{"name":"Bug","color":"e10c02","url":"https://api.github.com/repos/zfsonlinux/zfs/labels/Bug"}],"updated_at":"2011-11-03T05:32:05Z","comments":21,"closed_at":null,"url":"https://api.github.com/repos/zfsonlinux/zfs/issues/210","body":"Even when no filesystem operation is taking place, ZFS keeps on writing to the disk. Do we know what its writing? Its fairly large number and amount of IO for an idle system. This is definitely not the case on Opensolaris.\r\n<pre>\r\n\r\n\r\n# zpool iostat -v 5\r\n               capacity     operations    bandwidth\r\npool        alloc   free   read  write   read  write\r\n----------  -----  -----  -----  -----  -----  -----\r\nrpool       6.61G  16.5G     32     22   269K   146K\r\n  sda6      6.61G  16.5G     32     22   269K   146K\r\n----------  -----  -----  -----  -----  -----  -----\r\n\r\n               capacity     operations    bandwidth\r\npool        alloc   free   read  write   read  write\r\n----------  -----  -----  -----  -----  -----  -----\r\nrpool       6.61G  16.5G      0     15      0  54.2K\r\n  sda6      6.61G  16.5G      0     15      0  54.2K\r\n----------  -----  -----  -----  -----  -----  -----\r\n\r\n               capacity     operations    bandwidth\r\npool        alloc   free   read  write   read  write\r\n----------  -----  -----  -----  -----  -----  -----\r\nrpool       6.61G  16.5G      0     15    716  45.4K\r\n  sda6      6.61G  16.5G      0     15    716  45.4K\r\n----------  -----  -----  -----  -----  -----  -----\r\n\r\n               capacity     operations    bandwidth\r\npool        alloc   free   read  write   read  write\r\n----------  -----  -----  -----  -----  -----  -----\r\nrpool       6.61G  16.5G      0     16  39.2K  63.0K\r\n  sda6      6.61G  16.5G      0     16  39.2K  63.0K\r\n----------  -----  -----  -----  -----  -----  -----\r\n\r\n               capacity     operations    bandwidth\r\npool        alloc   free   read  write   read  write\r\n----------  -----  -----  -----  -----  -----  -----\r\nrpool       6.61G  16.5G      0     16    716  51.0K\r\n  sda6      6.61G  16.5G      0     16    716  51.0K\r\n----------  -----  -----  -----  -----  -----  -----\r\n\r\n               capacity     operations    bandwidth\r\npool        alloc   free   read  write   read  write\r\n----------  -----  -----  -----  -----  -----  -----\r\nrpool       6.61G  16.5G      1     17   116K  95.5K\r\n  sda6      6.61G  16.5G      1     17   116K  95.5K\r\n----------  -----  -----  -----  -----  -----  -----\r\n\r\n               capacity     operations    bandwidth\r\npool        alloc   free   read  write   read  write\r\n----------  -----  -----  -----  -----  -----  -----\r\nrpool       6.61G  16.5G      0     27      0   296K\r\n  sda6      6.61G  16.5G      0     27      0   296K\r\n----------  -----  -----  -----  -----  -----  -----\r\n\r\n               capacity     operations    bandwidth\r\npool        alloc   free   read  write   read  write\r\n----------  -----  -----  -----  -----  -----  -----\r\nrpool       6.61G  16.5G      0     30      0   217K\r\n  sda6      6.61G  16.5G      0     30      0   217K\r\n----------  -----  -----  -----  -----  -----  -----\r\n</pre>\r\nThis is with latest master as of 6pm Apr 21, 2011 PST.","html_url":"https://github.com/zfsonlinux/zfs/issues/210","number":210,"title":"large number and amount of writes to disk when idle","id":802827,"created_at":"2011-04-22T16:38:39Z"},"action":"created","comment":{"user":{"avatar_url":"https://secure.gravatar.com/avatar/ba25dd7bae959c5e7fedceaf946c7d05?d=https://a248.e.akamai.net/assets.github.com%2Fimages%2Fgravatars%2Fgravatar-140.png","gravatar_id":"ba25dd7bae959c5e7fedceaf946c7d05","url":"https://api.github.com/users/dajhorn","login":"dajhorn","id":494022},"updated_at":"2011-11-03T05:32:05Z","url":"https://api.github.com/repos/zfsonlinux/zfs/issues/comments/2613438","body":"The default power policy spins down zpool disks in my workstation.  This ticket is probably stale for most vanilla installations. ","id":2613438,"created_at":"2011-11-03T05:32:05Z"}}