On Fri, 4 Feb 2022 13:19:23 -0800 (PST) Rich Shepard <rshep...@appl-ecosys.com> dijo:
>On Fri, 4 Feb 2022, Rich Shepard wrote: >My limited understanding of RAIDs is that striping would increase >writing speed but lose the redundance of the hdds themselves. Am I >mistaken? That is sort of true. With two physical disks RAID0 turns them into one device. In theory your OS reads/writes to both at the same time, speeding things up by a factor of two. In reality the speedup is far less than two. And since both disks have been turned into one device, you have no place to put a mirror. And another bad point about RAID0 is that if one disk fails, you lose both disks, because half of file was written to one disk and the other half to the other. Trying to recover means you have to match all the parts; not generally possible. All my RAID arrays are RAID0 because each one is mirrored nightly to another RAID0 of the same size.
