How to select Hardware Raid 1 drive for install?

Elanachan · 2017-08-15 23:28:41

Hello there. I finally got my second SSD back from the RMA order, and so I've set up the RAID 1 array in the UEFI BIOS, however I am unsure as to which listing I should select under lsblk for the install. This is what I get when I type in the command:

NAME           MAJ:MIN    RM       SIZE   RO     TYPE      MOUNTPOINT
loop0            7:0       0       403M    1     loop      /run/archiso/sfs/airootfs
sda              8:0       0     953.9G    0     disk
|-md125          9:125     0     953.9G    0     raid1
sdb              8:16      0       4.6T    0     disk
|-md124          9:124     0       9.1G    0     raid0
sdc              8:32      0       4.6T    0     disk
|-md124          9:124     0       9.1G    0     raid0
sdd              8:48      0     953.9G    0     disk
|-md125          9:125     0     953.9G    0     raid1
sde              8:64      0       4.6T    0     disk
sdf              8:80      0       4.6T    0     disk
sdg              8:96      1       7.2G    0     disk
|-sdg1           8:97      1       9.1G    0     part      /run/archiso/bootmnt
|-sdg2           8:98      1       9.1G    0     part

The intended array for the OS is the sda/sdd raid1 array, but I'm not sure what to put under /dev/sdX for the install process, and the instructions on the RAID page on the wiki is unclear to me on how to do this, or if it even addresses this issue, as what I have read seems to be focused on software RAID.

circleface · 2017-08-15 23:36:37

You would use /dev/md125 for the raid device. Please note, I have never used RAID before so I'm not positive, but from what I have seen it should work to use /dev/md125. Maybe wait for someone more knowledgable to come around if you don't want to lose any data (you do have backups don't you? )

jasonwryan · 2017-08-15 23:38:29

https://wiki.archlinux.org/index.php/RA … ux_on_RAID

wiki wrote:

Instead of directly formatting a partition to be your root file system, it will be created on a RAID array.

Elanachan · 2017-08-16 00:18:31

Thanks for the info, however it is possible I need to amend my original statement. After some more digging, I realized that I may infact be using what the wiki refers to as fakeRAID. I am using the motherboard's onboard solution, which is through the use of the Z170 chipset. This makes use of Intel Rapid Storage Technology, and according to the manual for the motherboard, atleast some of the recovery process takes place inside the operating system (gigabyte assumes windows). So, with that in mind, I'm wondering if I should delete the raid volumes and use mdraid.

Last edited by Elanachan (2017-08-16 00:19:22)

jasonwryan · 2017-08-16 00:50:34

https://wiki.archlinux.org/index.php/In … _Fake_RAID

Elanachan · 2017-08-16 08:23:57

Alright, so I now have the system set up with mdadm and software RAID, and the rest of the install seemed to go smoothly....but now it won't boot without the USB key, and the drive doesn't appear as bootable in the UEFI BIOS. Looking for suggestions on how to get it to boot properly. I am attempting to use systemd-boot for my bootloader.

Edit: Because the idea of hardware RAID for the boot drives has basicly been eliminated, I posted a new thread to better address the point I am at now. As far as I'm concerned this thread can be closed.

Last edited by Elanachan (2017-08-16 18:13:36)

Arch Linux

#1 2017-08-15 23:28:41

How to select Hardware Raid 1 drive for install?

#2 2017-08-15 23:36:37

Re: How to select Hardware Raid 1 drive for install?

#3 2017-08-15 23:38:29

Re: How to select Hardware Raid 1 drive for install?

#4 2017-08-16 00:18:31

Re: How to select Hardware Raid 1 drive for install?

#5 2017-08-16 00:50:34

Re: How to select Hardware Raid 1 drive for install?

#6 2017-08-16 08:23:57

Re: How to select Hardware Raid 1 drive for install?

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