Am 06.02.20 um 17:02 schrieb Nicolas KAROLAK: > On Thu, Feb 06, 2020 at 03:07:00PM +0100, Reindl Harald wrote: >> didn't you realize that RAID6 has redundancy to survive *exactly two* >> failing disks no matter how many disks the array has anmd the data and >> redundancy informations are spread ove the disks? > > Not at the moment, i tested on a VM before but with 6 disks and removing 2 > and then did it on the server without thinking/realizing than 4 is different > than 2 and that it would obsviously f**k the RAID array... (>_<') seriously? but even without knowing what one is doing who sane in his mind removes more than one disk at the same time from a working array with data? restore your backups as you had the space to make dd-images i guess you have made backups before such an operation https://en.wikipedia.org/wiki/RAID RAID 5 consists of block-level striping with distributed parity. Unlike RAID 4, parity information is distributed among the drives, requiring all drives but one to be present to operate RAID 6 consists of block-level striping with double distributed parity. Double parity provides fault tolerance up to two failed drives
