Aaron_S

The serial number is displayed correctly in the unraid gui under "Identity".

Thanks for the tip. You could be right. I have two USB enclosures and so I have the scsi id's 0:0 and 0:1 twice for the same serial number 1. Enclosure [1:0:0:0] disk WDC WD40 EFAX-68JH4N1 0125 /dev/sdb [1:0:0:1] disk WDC WD50 00BPVT-22HXZT3 0125 /dev/sdc 2. Enclosure [2:0:0:0] disk ST332082 0AS 0125 /dev/sdd [2:0:0:1] disk ST2000DM 001-1CH164 0125 /dev/sde [2:0:0:2] disk WDC WD40 EFPX-68C6CN0 0125 /dev/sdf [2:0:0:3] disk Samsung SSD 850 PRO 256G 0125 /dev/sdg Disks in the array: ST2000DM_001-1CH164_152D00539000-0:1 (sde) WDC_WD40_EFPX-68C6CN0_152D00539000-0:2 (sdf) Samsung_SSD_850_PRO_256G_152D00539000-0:3 (sdg) ST332082_0AS_152D00539000-0:0 (sdd) Unassigned Disks: WDC_WD40_EFAX-68JH4N1_152D00539000-0:0 (sdb) WDC_WD50_00BPVT-22HXZT3_152D00539000-0:1 (sdc)

Yes, I know. I've only been using unRAID for a short time, and I've started with a few old hard drives and SSD`s that I wasn't using. unraid-diagnostics-20240403-2147.zip

Version: 6.12.8 I am trying to add a new hard disk to the array. The hard disk is displayed in the drop-down menu. But when I select the hard disk it jumps back to unassigned. The following message appears in the log. unraid emhttpd: error: assign_device_by_slot, 1967: No such file or directory (2): disk3: already assigned I have already tried all the disk slots and performed a preclear. Any ideas? Apr 3 20:35:04 unraid kernel: md: unRAID driver removed Apr 3 20:35:04 unraid emhttpd: shcmd (178265): /sbin/modprobe md-mod super=/boot/config/super.dat Apr 3 20:35:04 unraid kernel: md: unRAID driver 2.9.27 installed Apr 3 20:35:04 unraid emhttpd: Device inventory: Apr 3 20:35:04 unraid emhttpd: Samsung_SSD_850_PRO_256G_152D00539000-0:3 (sdg) 512 500118192 Apr 3 20:35:04 unraid emhttpd: ST332082_0AS_152D00539000-0:0 (sdd) 512 625142448 Apr 3 20:35:04 unraid emhttpd: ST2000DM_001-1CH164_152D00539000-0:1 (sde) 512 3907029168 Apr 3 20:35:04 unraid emhttpd: WDC_WD40_EFAX-68JH4N1_152D00539000-0:0 (sdb) 512 7814037168 Apr 3 20:35:04 unraid emhttpd: WDC_WD40_EFPX-68C6CN0_152D00539000-0:2 (sdf) 512 7814037168 Apr 3 20:35:04 unraid emhttpd: WDC_WD50_00BPVT-22HXZT3_152D00539000-0:1 (sdc) 512 976773168 Apr 3 20:35:04 unraid emhttpd: CT500P3SSD8_2234E657A5F3 (nvme0n1) 512 976773168 Apr 3 20:35:04 unraid emhttpd: Generic_Flash_Disk_05925434-0:0 (sda) 512 16099328 Apr 3 20:35:04 unraid kernel: mdcmd (1): import 0 sde 64 1953514552 0 ST2000DM_001-1CH164_152D00539000-0:1 Apr 3 20:35:04 unraid kernel: md: import disk0: (sde) ST2000DM_001-1CH164_152D00539000-0:1 size: 1953514552 Apr 3 20:35:04 unraid kernel: mdcmd (2): import 1 sdg 64 250059064 0 Samsung_SSD_850_PRO_256G_152D00539000-0:3 Apr 3 20:35:04 unraid kernel: md: import disk1: (sdg) Samsung_SSD_850_PRO_256G_152D00539000-0:3 size: 250059064 Apr 3 20:35:04 unraid emhttpd: error: assign_device_by_slot, 1967: No such file or directory (2): disk3: already assigned Apr 3 20:35:04 unraid kernel: mdcmd (3): import 2 sdd 64 312571192 0 ST332082_0AS_152D00539000-0:0 Apr 3 20:35:04 unraid kernel: md: import disk2: (sdd) ST332082_0AS_152D00539000-0:0 size: 312571192 Apr 3 20:35:04 unraid kernel: mdcmd (4): import 3 Apr 3 20:35:04 unraid kernel: mdcmd (5): import 4 Apr 3 20:35:04 unraid kernel: mdcmd (6): import 5 Apr 3 20:35:04 unraid kernel: mdcmd (7): import 6 Apr 3 20:35:04 unraid kernel: mdcmd (8): import 7 Apr 3 20:35:04 unraid kernel: mdcmd (9): import 8 Apr 3 20:35:04 unraid kernel: mdcmd (10): import 9 Apr 3 20:35:04 unraid kernel: mdcmd (11): import 10 Apr 3 20:35:04 unraid kernel: mdcmd (12): import 11 Apr 3 20:35:04 unraid kernel: mdcmd (13): import 12 Apr 3 20:35:04 unraid kernel: mdcmd (14): import 13 Apr 3 20:35:04 unraid kernel: mdcmd (15): import 14 Apr 3 20:35:04 unraid kernel: mdcmd (16): import 15 Apr 3 20:35:04 unraid kernel: mdcmd (17): import 16 Apr 3 20:35:04 unraid kernel: mdcmd (18): import 17 Apr 3 20:35:04 unraid kernel: mdcmd (19): import 18 Apr 3 20:35:04 unraid kernel: mdcmd (20): import 19 Apr 3 20:35:04 unraid kernel: mdcmd (21): import 20 Apr 3 20:35:04 unraid kernel: mdcmd (22): import 21 Apr 3 20:35:04 unraid kernel: mdcmd (23): import 22 Apr 3 20:35:04 unraid kernel: mdcmd (24): import 23 Apr 3 20:35:04 unraid kernel: mdcmd (25): import 24 Apr 3 20:35:04 unraid kernel: mdcmd (26): import 25 Apr 3 20:35:04 unraid kernel: mdcmd (27): import 26 Apr 3 20:35:04 unraid kernel: mdcmd (28): import 27 Apr 3 20:35:04 unraid kernel: mdcmd (29): import 28 Apr 3 20:35:04 unraid kernel: mdcmd (30): import 29 sdf 64 3907018532 0 WDC_WD40_EFPX-68C6CN0_152D00539000-0:2 Apr 3 20:35:04 unraid kernel: md: import disk29: (sdf) WDC_WD40_EFPX-68C6CN0_152D00539000-0:2 size: 3907018532 Apr 3 20:35:04 unraid emhttpd: import 30 cache device: (nvme0n1) CT500P3SSD8_2234E657A5F3 Apr 3 20:35:04 unraid emhttpd: import flash device: sda Apr 3 20:35:04 unraid root: Submitting SysDrivers Build Apr 3 20:35:05 unraid SysDrivers: SysDrivers Build Starting Apr 3 20:35:05 unraid emhttpd: read SMART /dev/nvme0n1 Apr 3 20:35:05 unraid emhttpd: read SMART /dev/sda Apr 3 20:35:16 unraid SysDrivers: SysDrivers Build Complete