Hi!
I could use some help with setting up Intel hw raid array. I have two, 4 TB
drives that I want to use purely for storage (no booting) as a raid 1 array.
I did manage to set them up as a software RAID using mdadm. However, I would
want the array to also be accessible from Windows 10 installation. AFAIK to
achieve this I need to use hardware RAID created in BIOS by Intel Rapid Storage
Technology (RST).
I tried to follow these instructions ([1] and [2]):
$ sudo mdadm -C /dev/md/imsm /dev/sd[b-c] –n 2 –e imsm
It fails:
mdadm: /dev/sdb is not suitable for this array
mdadm: /dev/sdc is not suitable for this array
mdadm: create aborted
Also this does not look good:
$ sudo mdadm --detail-platform
mdadm: imsm capabilities not found for controller:
/sys/devices/pci0000:00/0000:00:1f.2 (type SATA)
Some info about hardware:
$ dmesg | grep 1f.2
[ 2.677109] ahci 000:00:1j.2: version 3.0
[ 2.677252] ahci 000:00:1j.2: AHCI 0001.0300 32 slots 6 ports 6 Gbps 0x3f
impl RAID mode
[ 2.677254] ahci 000:00:1j.2: flags: 64bit ncq led clo pio slum part ems apst
Controller is set to RAID mode in BIOS also, RAID array has been created
(VOLUME 1)
$ sudo mdadm --examine /dev/sdb
/dev/sdb:
Magic : Intel Raid ISM Cfg Sig.
Version : 1.3.00
Orig Family : 66247044
Family : 66247044
Generation : 00000002
Attributes : All supported
UUID : e492be44:10b30ade:b642e816:dd60ca99
Checksum : 0f34c20c correct
MPB Sectors : 1
Disks : 2
RAID Devices : 1
Disk00 Serial : ***
State : active
Id : 00000002
Usable Size : 7814031624 (3726.02 GiB 4000.78 GB)
[Volume1]:
UUID : 5d5fbe08:1c90e2f3:e7896bec:0c7ca70a
RAID Level : 1
Members : 2
Slots : [UU]
Failed disk : none
This Slot : 0
Array Size : 7814031360 (3726.02 GiB 4000.78 GB)
Per Dev Size : 7814031624 (3726.02 GiB 4000.78 GB)
Sector Offset : 0
Num Stripes : 30523560
Chunk Size : 64 KiB
Reserved : 0
Migrate State : idle
Map State : uninitialized
Dirty State : clean
Disk01 Serial : ***
State : active
Id : 00000005
Usable Size : 7814031624 (3726.02 GiB 4000.78 GB)
For /dev/sdc output of --examine is similar.
Hardware specs:
mb: asrock z97 extreme4
cpu: intel i5 4690
qubes-os: 3.2-rc3
Thanks in advance for all your help and suggestions on how to proceed.
Robert
[1]
http://www.intel.com/content/dam/www/public/us/en/documents/white-papers/rst-linux-paper.pdf
[2] https://raid.wiki.kernel.org/index.php/RAID_setup#External_Metadata
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