Intel RST RAID 1 volume under Linux?

[helzayat]

My system has a RAID1 volume consisting of two 6TB drives under Intel RST. I attach a screenshot of the BIOS showing the RAID volume, and of the RAID Disk in Disk Management in Windows 10.

Under Linux, I see two separate drives (sda and sdb) and each partition is repeated twice in File Manager. 

I am afraid if I scan one of the disks and KRD modifies it, this will break my RAID1. Is it possible to mount this RAID volume in Linux (mdadm?) without damaging it?

 

[Andrey Kirzhemanov]

@helzayat

Please try this custom KRD  http://devbuilds.kaspersky-labs.com/KRD/2018/isw/krd_isw.iso

You can add parameter rovolumes to KRD kernel commandline (details see in https://support.kaspersky.com/14223#block1) to prevent KRD mounting volumes in RW mode.

 

 Is it possible to mount this RAID volume in Linux (mdadm?) without damaging it?

 

Yes, mdadm can work with IRST https://www.intel.com/content/dam/www/public/us/en/documents/white-papers/rst-linux-paper.pdf

[helzayat]

Thanks Andrey, I tried the custom KRD but didn’t see what the difference is from the regular one.

Is it supposed to help with RAID?

I saw the Intel document before, but it seems to only talk about creating a RAID in Linux, deleting all data on the drives. I need to access an existing RAID.

mdadm --assemble gives an error “no superblock” on the member drives

[Andrey Kirzhemanov]

I tried the custom KRD but didn’t see what the difference is from the regular one.

Is it supposed to help with RAID?

Yes, there are added some support for IRST Raids. This custom KRD can detect Windows in Kaspersky Rescue Tool. In neighboard topic (https://community.kaspersky.com/kaspersky-rescue-disk-78/registry-editor-in-kaspersky-rescue-disk-18-855#post32870) this build can help unlock windows.

I saw the Intel document before, but it seems to only talk about creating a RAID in Linux, deleting all data on the drives. I need to access an existing RAID.

mdadm --assemble gives an error “no superblock” on the member drives

Assemble command tries to build raid from config (default is /etc/mdadm.conf). To create this config use following command (from Intel doc):

mdadm -E –s –-config=mdadm.conf > /etc/mdadm.conf

and then:

mdadm –As

to assemble raid. KRD use mdadm to search and assemble RAID by default.

[Eric_B]

And when the RST controller is used in the BIOS, but no RAID is configured. How can I see the disk I want to analyze with KRD?

Edited October 15 by Eric_B