October 8, 20169 yr Currently, I've got one drive that died (as noted here: http://lime-technology.com/forum/index.php?topic=52573.0), and I'm running the preclear on its replacement. I'm streaming a video, and I have CrashPlan backing up my Photo share. However, the Dashboard tab shows that I've only got 3 drives spinning, and the parity drive isn't one of them. My understanding was that if a drive failed, unRAID would read the data back from all drives, including parity, to determine what the series of bits off the missing drive were supposed to have been, but this doesn't seem to be the case. What's going on here?
October 8, 20169 yr Parity drive is only needed to recreate data from the missing drive. Perhaps everything that you are doing only needs data from the drives which are present. This is not like RAID5 where the data is striped across all disks, in which case all disks are spun up whenever accessing any data.
October 9, 20169 yr Author Makes sense, however, I'm watching some newer stuff which should have been on the disk that just died. The photos makes sense, they're all segregated to one drive, though.
October 9, 20169 yr It's virtually certain that you're simply not reading any data from the missing disk. You can confirm that by looking at the missing disk via it's disk share (assuming you have disk shares enabled -- if not, you can simply enable them). Then you'll see what's on the missing disk -- AND all of your other disks will be spinning
October 9, 20169 yr Makes sense, however, I'm watching some newer stuff which should have been on the disk that just died. The photos makes sense, they're all segregated to one drive, though. What about the cache drive? Sure you're not using that one?
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