On Wed, 2020-11-11 at 11:34 +0100, Thomas Bendler wrote: > Am Mi., 11. Nov. 2020 um 07:28 Uhr schrieb hw <hw at gc-24.de>: > > > [...] > > With this experience, these controllers are now deprecated. RAID > > controllers > > that can't rebuild an array after a disk has failed and has been replaced > > are virtually useless. > > [...] > > HW RAID is often delivered with quite limited functionality. Because of > this I switched in most cases to software RAID meanwhile and configured the > HW RAID as JBOD. The funny thing is, when you use the discs previously used > in the HW RAID in such a scenario, the software RAID detects them as RAID > disks. It looks like a significant amount of HW RAID controllers use the > Linux software RAID code in their firmware. > I have yet to see software RAID that doesn't kill the performance. And where do you get cost-efficient cards that can do JBOD? I don't have any. It turned out that the controller does not rebuild the array even with a disk that is the same model and capacity as the others. What has HP been thinking?