Unraid use cache disk for torrent downloads

With a cache drive: unRAID 4. So generally speaking, a server with a cache drive has write speeds x faster than the same server without a cache drive. The Mover is a utility that runs periodically to move files off the cache disk and onto parity-protected data disk s.

If Mover logging is enabled, the mover will record all its activity to the system log. By default the mover is scheduled to run every day at AM. This may be changed by defining your own Mover schedule string in crontab format.

If the mover finds no files to move, and the disks are spun-down, the disks will not spin up. A warm spare is a hard drive that you have installed in your server to prepare for the eventuality of one of your other hard drives failing. It requires that the warm spare drive be as large or larger than your parity drive and your largest data drive. When a drive does eventually fail, you simply stop the array via the Main page , unassign the dead drive via the Devices page , assign the warm spare also on the Devices page , and then start the array back on the Main page.

At this point, your data from the dead drive will be automatically rebuilt onto your warm spare - this will take many hours, but your array and all your data is still available for use during this time though performance will likely be degraded.

However, why not use a warm spare as a cache drive while you wait around for another drive to fail? This application will of course add a bit of wear and tear to your warm spare, but nothing outside the scope of ordinary use. As a cache drive is outside of the parity-protected array, it can be used for alternate software and unRAID add-ons that need to read and write data often. Examples include:. The cache disk can be used as scratch space for torrent client s , news clients or web servers.

The advantage here is that, for most of the day, only the one cache disk in the array needs to be spun up. Otherwise, at least two drives - parity and one data — will be spun up. If your cache drive dies, it will take all of the data currently residing on it to the grave.

While it is possible to run ReiserFS data recovery software on your dead cache drive, there is still a good possibility of permanent data loss. By default, the mover script will run once a day at am. If you are concerned about data loss, you can edit the script so that it runs more frequently and at different times. Increased perceived write speed: You will want a drive that is as fast as possible.

For the fastest possible speed, you'll want an SSD which has the added benefit of being low power or a 10, rpm drive. If you are on a tighter budget, a rpm drive such as a WD Black will do fine.

Unless you write a lot of very small files, the size of the hard drive's cache 8, 16, 32, 64 mb etc. You can also eek a bit more performance out of a slower drive by short stroking it meaning confine it to only the outside sectors, which are higher density and can therefore be written to and read from faster , but this is of course an advanced maneuver. As a Warm Spare: you will want a drive that is the same size or larger than your parity disk. As it stands right now copying them from the active spinning HDD to a cache temporary is pretty slow.

My new workflow would have them being copied from cache to cache until the mover moves them later in the evening. I keep my active torrents on a UD mount. Same basic idea as using the cache, but my cache is a little small if I have a lot of torrents. Had some rather severe performance hits trying to keep them on a user share. Would lose connection to the server when files were being moved and torrent downloads were very slow with large numbers of writes to parity protected user share.

I think any drive outside the array would work for this. My 13 dockers were on the spinner as well, they are on the SSD now. You can post now and register later. If you have an account, sign in now to post with your account.

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