February 6, 201214 yr Hi I'm running unraid 4.7 and have attempted to replace my 2TB parity drive with a Seagate 3TB drive, but am having issues with unraid recognising the drive. I precleared the drive using the -A option, and my settings are set to 4k aligned (this will be the 1st > 2TB drive in the array). The drive appears in the list of unassigned drives, and I can use the drop down to assign it as parity. However on the main tab, parity drive is shown as missing. On checking the system log I see the following error Feb 6 09:33:21 Tower kernel: md: import disk0: BLKGETSIZE ioctl error: -27 (Errors) Feb 6 09:33:21 Tower kernel: md: disk0 removed (unRAID engine) Which I presume is why the drive is not showing as parity. I've checked the drive with preclear -t and get the following Pre-Clear unRAID Disk /dev/sdj ################################################################## 1.13 Device Model: ST33000651AS Serial Number: Z2911N9K Firmware Version: CC45 User Capacity: 3,000,592,982,016 bytes Disk /dev/sdj: 3000.5 GB, 3000592982016 bytes 255 heads, 63 sectors/track, 364801 cylinders, total 5860533168 sectors Units = sectors of 1 * 512 = 512 bytes Disk identifier: 0x00000000 Device Boot Start End Blocks Id System /dev/sdj1 1 4294967295 2147483647+ 0 Empty Partition 1 does not end on cylinder boundary. ######################################################################## ========================================================================1.13 == == DISK /dev/sdj IS PRECLEARED with a GPT Protective MBR == ============================================================================ Could anyone shed any light on why this is happening, and what I can do to get the drive working as parity. Appreciate the assistance. Glen.
February 6, 201214 yr Author After further research is would appear as though 4.7 does not support drives > 2.2TB I will bite the bullet and install the latest 5 beta 14 and see if this fixes the issue. Cheers Glen.
February 6, 201214 yr Author Ok, installed 5 beta 14 and the disk is now in the array and parity is rebuilding. Cheers Glen.
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