{"action":"closed","issue":{"url":"https://api.github.com/repos/qbittorrent/qBittorrent/issues/8756","repository_url":"https://api.github.com/repos/qbittorrent/qBittorrent","labels_url":"https://api.github.com/repos/qbittorrent/qBittorrent/issues/8756/labels{/name}","comments_url":"https://api.github.com/repos/qbittorrent/qBittorrent/issues/8756/comments","events_url":"https://api.github.com/repos/qbittorrent/qBittorrent/issues/8756/events","html_url":"https://github.com/qbittorrent/qBittorrent/issues/8756","id":315081993,"number":8756,"title":"Disk Overload 100% on external exFAT 4K Advanced Format HDD (GPT)","user":{"login":"wtester7","id":36233786,"avatar_url":"https://avatars3.githubusercontent.com/u/36233786?v=4","gravatar_id":"","url":"https://api.github.com/users/wtester7","html_url":"https://github.com/wtester7","followers_url":"https://api.github.com/users/wtester7/followers","following_url":"https://api.github.com/users/wtester7/following{/other_user}","gists_url":"https://api.github.com/users/wtester7/gists{/gist_id}","starred_url":"https://api.github.com/users/wtester7/starred{/owner}{/repo}","subscriptions_url":"https://api.github.com/users/wtester7/subscriptions","organizations_url":"https://api.github.com/users/wtester7/orgs","repos_url":"https://api.github.com/users/wtester7/repos","events_url":"https://api.github.com/users/wtester7/events{/privacy}","received_events_url":"https://api.github.com/users/wtester7/received_events","type":"User","site_admin":false},"labels":[],"state":"closed","locked":false,"assignee":null,"assignees":[],"milestone":null,"comments":21,"created_at":"2018-04-17T14:18:15Z","updated_at":"2018-04-20T05:01:14Z","closed_at":"2018-04-20T05:01:13Z","author_association":"NONE","body":"### qBittorrent version and Operating System\r\nUsing qbittorrent 4.1.0 alpha from Chocobo1: https://github.com/qbittorrent/qBittorrent/issues/8295\r\non latest updated Windows 7 SP1 x64\r\n\r\n### What is the problem\r\n****If you're using an external formated exFAT 4K Advanced Format HDD (GPT) with qbitorrent 4.04 on Windows you will always end up with 100% disk overload.**** \r\n\r\nI found a thread with a similar issue ( disk performance ) https://github.com/qbittorrent/qBittorrent/issues/8295\r\nand was using @Chocobo1 , @arvidn test build qbittorrent 4.1.0 alpha from this thread and the disk performance was much better but there is still a problem. \r\n\r\nIf you add lots of new torrents into qbittorrent the disk overload will hit you in few seconds up to 100%.  \r\nAs I saw qbittorrent allocates the files with its size to the external exFAT HDD and this will trigger the 100% write cache overload. After you wait ( depends on the size of the torrent and how many you add at the same time, could take from 10 minutes to 2 hours ) when the allocation and the reserved size of its torrents on the external exFAT HDD is finished, the disk overload will also disappear ( 0% write cache overload ) and you have again maximum download speed... \r\n\r\nSettings were used:\r\n**Pre-allocate disk space for all files: off**\r\nDisk cache: -1 ( auto )\r\nDisk expiry interval: 60 s\r\nEnabled OS Cache ( doesn't matter if its on or off )\r\n\r\n**So I think the problem has to do with pre-allocation of the files, the option is disabled but qbittorrent is still pre-allocating the files, that's when the 100% disk overload occurs!**\r\n\r\nI hope you can fix this annoying issue, thank you!\r\n\r\n**P.S Does the constant 100% write cache overload over a longer period of time hurt or damaged the HDD? Or is the process of data just in queue and it doesn't matter or effect it? I am asking because the HDD is aggressively working non-stop...** \r\n\r\n"}}
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