I am running RHEL8 on a single drive right now. I would like to migrate to a RAID1 configuration with hardware raid handled by my Intel PCH onboard RAID controller (X10DRH-CT motherboard). I have configured the RAID and attempted to do a simple dd to the raid (which shows up as an mdadm raid via systemrescuecd) but it doesn't seem to work at all. Does anyone have any suggestions on what to do here? what is the best way to migrate this over?
Migrating from single disk OS drive to Intel RAID1 PCH
- Thread starter lastb0isct
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- intel raid mdadm migration pch raid
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Unable to See the RAID Volume during Red Hat Enterprise Linux* (RHEL)...
How to load driver for your Intel® Embedded Server RAID Technology 2 (ESRT2) controller during RHEL* 7.x operating system (OS) installation
www.intel.com
my question is not how to install RHEL onto the RAID. It is how to migrate my existing installation onto the new RAID I have…Unable to See the RAID Volume during Red Hat Enterprise Linux* (RHEL)...
How to load driver for your Intel® Embedded Server RAID Technology 2 (ESRT2) controller during RHEL* 7.x operating system (OS) installation
if it shows up as mdadm it is a fake-raid. I'd strongly advise you to just deconfigure it and use a normal linux raid1 setup. There are many guides which explain how either convert a single disk installation to a raid1 setup or copy it over to a fresh raid array. The former I had to do like 200 times two decades ago because the CTO thought it a waste of money to invest in redundancy at a server level ....
I actually really want to get away from mdadm...I had that before and I want to utilize the hardware RAID that is built into my motherboard. Strange that Intel PCH would show up as mdadm, but maybe that's normal? I'm not sure how to move forward with that.
Well, that Intel onboard „RAID“ isn’t a real hardware RAID. It’s a „soft raid“ which means it does not have a dedicated raid chip / prozessor. It is all done in software driver.
Interesting -- I hadn't realized that. Thought onboard always was "hardware" but I guess I haven't really looked into it much. Thanks for the advice on that!