Am 10.07.2017 um 10:52 schrieb Bjoern Voigt:
I plan to install openSUSE Leap 42.2 on a HPE ProLiant MicroServer Gen8.
I have too options to setup RAID 1 on for the disks: 1) Linux software RAID 2) Hardware RAID with the embedded HPE Dynamic Smart Array B120i Controller
I want to be prepared for a possible hardware error.
I am familiar with software RAID. Even if the mainboard breaks I can take one or both disks to another computer and recover the data with any Linux system.
But how is it with the hardware RAID (B120i controller here)? If the mainboard/CPU/controller/whatever breaks, can I use the same strategy (take the disks to another PC without hardware RAID, recover data) or do I need to buy another HPE ProLiant MicroServer Gen8 or compatible server and recover the disks there?
If you don’t use an identical raid controller (same model, maybe you need also same stepping and same bios version) on the new computer you will not be able to read your disks anymore. So if you don’t have a hardware support contract it is the safest way to buy 2 controller and use on as cold spare.
What is the main advantage of hardware RAID over software RAID on Linux? (I think performance and that a hardware RAID can automatically boot from the second disk, but I am a newbie in hardware RAID and so not sure.)
Normally you get better performance. The controller take some work away from the cpu. Many controllers also have a lot of on board memory (at better ones also battery protected) Greetings Peter -- To unsubscribe, e-mail: opensuse+unsubscribe@opensuse.org To contact the owner, e-mail: opensuse+owner@opensuse.org