>> The smallest disk of the 122 is 500GB. Is it possible to have btrfs >> see each disk as only e.g. 10GB? That way I can corrupt and resilver >> more disks over a month. > > Well, at least you can easily partition the devices for that to happen.
Can it be done with btrfs or should I do it with gdisk? > However, I would also suggest that would it be more useful use of the > resource to run many arrays in parallel? Ie. one 6-device raid6, one > 20-device raid6, and then perhaps use the rest of the devices for a very > large btrfs filesystem? Or if you have been using partitioning the large > btrfs volume can also be composed of all the 122 devices; in fact you > could even run multiple 122-device raid6s and use different kind of > testing on each. For performance testing you might only excert one of > the file systems at a time, though. Very interesting idea, which leads me to the following question: For the past weeks have I had all 122 disks in one raid6 filesystem, and since I didn't entered any vdev (zfs term) size, I suspect only 2 of the 122 disks are parity. If, how can I make the filesystem, so for every 6 disks, 2 of them are parity? Reading the mkfs.btrfs man page gives me the impression that it can't be done, which I find hard to believe. -- To unsubscribe from this list: send the line "unsubscribe linux-btrfs" in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html