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FS#49306 - [mdadm] does not recognize Intel RST Raid 0 setup disks

Attached to Project: Arch Linux
Opened by Faktor Q. Minimoog (faktorqm) - Thursday, 12 May 2016, 01:35 GMT
Last edited by Doug Newgard (Scimmia) - Monday, 16 May 2016, 22:29 GMT
Task Type Bug Report
Category Packages: Core
Status Assigned
Assigned To Tobias Powalowski (tpowa)
Architecture x86_64
Severity High
Priority Normal
Reported Version
Due in Version Undecided
Due Date Undecided
Percent Complete 0%
Votes 4
Private No


Dear programmers: Thanks a lot for your help in advance. Any information you need just ask me and I will answer ASAP. The problem is that mdadm does not recognize my raid 0 disks.

mdadm does not recognize my RAID 0 array made by Intel RST Bios utility (a.k.a. OROM) version and I don't see any /dev/md* directories.

Here is the output for the platform command.

# mdadm --detail-platform
Platform : Intel(R) Rapid Storage Technology
Version :
RAID Levels : raid0
Chunk Sizes : 4k 8k 16k 32k 64k 128k
2TB volumes : supported
2TB disks : supported
Max Disks : 7
Max Volumes : 2 per array, 4 per controller
I/O Controller : /sys/devices/pci0000:00/0000:00:17.0 (SATA)
Port0 : - no device attached -
Port1 : - no device attached -
Port2 : - no device attached -
Port3 : - no device attached -
Port4 : - no device attached -
Port5 : - no device attached -
Port6 : - no device attached -
Port7 : - no device attached -

Additional info:
* package version(s): mdadm 3.4.1 (present on the 2016.05.01 arch dual iso release)
I also have tried with 2015.10 image to test another version of mdadm. (3.3.4) and same thing.

* config and/or log files etc.
Do you need dmesg or something here?

Steps to reproduce:
Get any computer with a Intel RST board with OROM and bootup the live iso and that's it. Computers that I know has this hardware: MSI GT72S 6QF and Gigabyte P35X V5.

Thanks in advance! Regards!
This task depends upon

Comment by Doug Newgard (Scimmia) - Saturday, 14 May 2016, 05:23 GMT
Same as  FS#46295  or FS#47781?
Comment by Faktor Q. Minimoog (faktorqm) - Monday, 16 May 2016, 13:51 GMT
Dear Doug, Thanks for your question. I don't think that 46295 is related to this. The main difference is that mdadm detects the disks, but can't assemble them. In my case, shows "no device attached". BTW I also tested doing export IMSM_NO_PLATFORM = 1; and mdadm --detail-platform and also with "IMSM_NO_PLATFORM = 1 mdadm --detail-platform" without any success.
Regarding the another one, 47781, it's almost the same case than 46295. In step 3 says "3. Note the presence of your RAID array under /dev/md, using the name you gave it in the RAID configuration interface." and in my case I don't have any "md" under /dev whichs should contain 2 disks I think, I called my disks system0 and system1.
Thank you! Regards!
Comment by Matteo Campese (xyzbeppo) - Saturday, 16 June 2018, 13:30 GMT
Has anyone found some workaround to this bug?
Many Thanks!