On Wed, 2020-11-11 at 11:34 +0100, Thomas Bendler wrote:
Am Mi., 11. Nov. 2020 um 07:28 Uhr schrieb hw hw@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?