I recommend you do some homework and search the internet for studies and tests on the write life of a common USB Flash drive just so you can prove it to yourself. Here is just one such a test which had over 90 million write operations before the drive failed. This really has to do with wear leveling. http://www.bress.net/blog/archives/114-How-Long-Does-a-Flash-Drive-Last.html and here http://www.cfgear.com/how-long-does-a-flash-drive-last/Does the plugin keep writing back to the drive ie USB? Isn't USB not good for constant write backs?
If I may ask further. I wanted to clarify some things.If you plan to sleep your drives then my personal advice is to place them on a fast Flash drive if you have one. (...)
I have been running my plugins on a separate USB Flash drive. It all runs fine. This drive is formatted for UFS.
why that if you have a second usb flash drive ? And for people who needs a storage pool that is putting to deep sleep more often ?The plugin jail writes at least as often as config changes are made and may also write very often for logs. It's designed and expected to be run from the primary storage pool. There is no officially supported way to put it on the same USB key as the OS and would very likely be wiped out at every OS upgrade if an unsupported method was used.
The best place for the plugin jail is a dataset in the main storage pool.
So if you have all modules on (firefly, sabnzb, miniDLNA) but nothing "on" (database scanning or listening to your firefly music, donwloading nzb (here not so sure that sabnzb do not scan the nzb folder which should then go to the flash drive), seeing movie or scanning the video database : then the pool can idling.@huberte
Anytime data from the hard drives needs to be read or written to the drives will spin up.
I personally can only speak to MiniDLNA, yes if you are not streaming music or video using MiniDLNA then your drives will sleep. You should load those plug-in items up and test them. If you feel you don't have the time to test these yourself then you shouldn't be using FreeNAS IMO.So if you have all modules on (firefly, sabnzb, miniDLNA) but nothing "on" (database scanning or listening to your firefly music, donwloading nzb (here not so sure that sabnzb do not scan the nzb folder which should then go to the flash drive), seeing movie or scanning the video database : then the pool can idling.
Is this correct ?