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Created attachment 1232458 [details] Output of dmesg Description of problem: mdadm will not detect drives connected to Intel Raipd Storage RAID n UEFI on Intel cm236 chipset on Asus G752vy, propably missing support for cm236 chipset. Version-Release number of selected component (if applicable): Fedora 25 Live How reproducible: Install Fedora 25 live iso on usb in UEFI mode, run it in UEFI mode. Steps to Reproduce: 1.Open terminal. 2.su [enter] 3.mdadm --detail-platform Actual results: Platform : Intel(R) Rapid Storage Technology Version : 14.8.0.2377 RAID Levels : 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 - Expected results: It should list attached disk to the IRST raid, but there is no disks listed. Additional info: Problems with ata driver from dmesg: [ 9.206647] ata2.00: qc timeout (cmd 0xa1) [ 9.206655] ata2.00: failed to IDENTIFY (I/O error, err_mask=0x4) [ 9.206670] ata1.00: qc timeout (cmd 0xef) [ 9.206677] ata1.00: failed to enable AA (error_mask=0x4) [ 9.517319] ata1: SATA link up 6.0 Gbps (SStatus 133 SControl 300) [ 9.517343] ata2: SATA link up 1.5 Gbps (SStatus 113 SControl 300) [ 9.520588] ata1.00: ATA-8: HGST HTS721010A9E630, JB0OA3J0, max UDMA/133 [ 9.520592] ata1.00: 1953525168 sectors, multi 16: LBA48 NCQ (depth 31/32) [ 19.958671] ata2.00: qc timeout (cmd 0xa1) [ 19.958679] ata2.00: failed to IDENTIFY (I/O error, err_mask=0x4) [ 19.958682] ata2: limiting SATA link speed to 1.5 Gbps [ 20.269167] ata2: SATA link up 1.5 Gbps (SStatus 113 SControl 310) [ 25.590680] ata1.00: qc timeout (cmd 0x27) [ 25.590687] ata1.00: failed to read native max address (err_mask=0x4) [ 25.590689] ata1.00: HPA support seems broken, skipping HPA handling [ 25.590691] ata1.00: revalidation failed (errno=-5) [ 25.590741] ata1: limiting SATA link speed to 3.0 Gbps [ 25.590743] ata1.00: limiting speed to UDMA/133:PIO3 [ 25.901171] ata1: SATA link up 3.0 Gbps (SStatus 123 SControl 320) [ 40.950718] ata1.00: qc timeout (cmd 0xef) [ 40.950724] ata1.00: failed to set xfermode (err_mask=0x4) [ 40.950777] ata1.00: disabled [ 40.950790] ata1: hard resetting link [ 41.261221] ata1: SATA link up 3.0 Gbps (SStatus 123 SControl 320) [ 41.261230] ata1: EH complete [ 50.678741] ata2.00: qc timeout (cmd 0xa1) [ 50.678749] ata2.00: failed to IDENTIFY (I/O error, err_mask=0x4) [ 50.989249] ata2: SATA link up 1.5 Gbps (SStatus 113 SControl 310) There are Samsung 950Pro and HGST HTS721010A9E630 connected to IRST Raid in JBOD mode, the Samsung 950Pro does not get detected! Same error is litsed here: https://bbs.archlinux.org/viewtopic.php?id=212198
Seems disconnecting physicaly Samsung 950Pro will remedy the problem and drived do get detected now. Output of mdadm --detail-platform after removing Sammy 950Pro from system: Platform : Intel(R) Rapid Storage Technology Version : 14.8.0.2377 RAID Levels : 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) Port1 : - non-disk device (TSSTcorp CDDVDW SU-228GB) - Port0 : /dev/sda (JR10004M09SMLF) Propable BIOS Bug due to broken NVME driver in BIOS?