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ReadyNAS 104 drive upgrade did not expand volume
ReadNAS 104 - Firmware 6.8.1
Was configured with X-Raid and four drives : 3TB, 4TB, 4TB and 4TB
Replaced 3TB drive with a 4TB drive and allowed to resync (took 67 hours)
After resync completed I did not gain an additional 1TB of disk space in volume as expected (per ReadyNAS Calculator) - still have 9.99TB total
Noticed that I have two RAID groups showing on the volume
Raid Group #1 is RAID 5, includes all four drives
Raid Group #2 is RAID 5 and includes drives 2,3,4 (not the new 4TB drive)
I do not remember having to do anything else after previous drive upgrades to get the volume to expand - I thought it was automatic with X-RAID
To bring this to a close, re-enabling XRAID and allowing it to resync fixed my problem, I now have all the space that I expected to have with 4 x 4TB, e.g. ~11TB
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mdstat.log for reference
Personalities : [raid0] [raid1] [raid10] [raid6] [raid5] [raid4] md126 : active raid5 sda3[0] sdd3[5] sdc3[4] sdb3[1] 8776244352 blocks super 1.2 level 5, 64k chunk, algorithm 2 [4/4] [UUUU] md127 : active raid5 sdb4[0] sdc4[2] sda4[1] 1953245824 blocks super 1.2 level 5, 64k chunk, algorithm 2 [3/3] [UUU] md1 : active raid10 sda2[0] sdd2[3] sdc2[2] sdb2[1] 1046528 blocks super 1.2 512K chunks 2 near-copies [4/4] [UUUU] md0 : active raid1 sda1[0] sdd1[4] sdc1[5] sdb1[1] 4190208 blocks super 1.2 [4/4] [UUUU] unused devices: <none> /dev/md/0: Version : 1.2 Creation Time : Sun Jun 5 07:39:27 2016 Raid Level : raid1 Array Size : 4190208 (4.00 GiB 4.29 GB) Used Dev Size : 4190208 (4.00 GiB 4.29 GB) Raid Devices : 4 Total Devices : 4 Persistence : Superblock is persistent Update Time : Mon Oct 2 11:16:52 2017 State : clean Active Devices : 4 Working Devices : 4 Failed Devices : 0 Spare Devices : 0 Name : 2fe52592:0 (local to host 2fe52592) UUID : 4caae69b:cacc40b8:4a7fd489:565c3485 Events : 22185 Number Major Minor RaidDevice State 0 8 1 0 active sync /dev/sda1 1 8 17 1 active sync /dev/sdb1 5 8 33 2 active sync /dev/sdc1 4 8 49 3 active sync /dev/sdd1 /dev/md/1: Version : 1.2 Creation Time : Fri Sep 29 12:47:15 2017 Raid Level : raid10 Array Size : 1046528 (1022.00 MiB 1071.64 MB) Used Dev Size : 523264 (511.00 MiB 535.82 MB) Raid Devices : 4 Total Devices : 4 Persistence : Superblock is persistent Update Time : Sat Sep 30 19:47:47 2017 State : clean Active Devices : 4 Working Devices : 4 Failed Devices : 0 Spare Devices : 0 Layout : near=2 Chunk Size : 512K Name : 2fe52592:1 (local to host 2fe52592) UUID : d1326c53:d62b4a0b:8cf0c466:4c48e866 Events : 19 Number Major Minor RaidDevice State 0 8 2 0 active sync set-A /dev/sda2 1 8 18 1 active sync set-B /dev/sdb2 2 8 34 2 active sync set-A /dev/sdc2 3 8 50 3 active sync set-B /dev/sdd2 /dev/md/data-0: Version : 1.2 Creation Time : Sun Jun 5 07:39:28 2016 Raid Level : raid5 Array Size : 8776244352 (8369.68 GiB 8986.87 GB) Used Dev Size : 2925414784 (2789.89 GiB 2995.62 GB) Raid Devices : 4 Total Devices : 4 Persistence : Superblock is persistent Update Time : Mon Oct 2 11:13:15 2017 State : clean Active Devices : 4 Working Devices : 4 Failed Devices : 0 Spare Devices : 0 Layout : left-symmetric Chunk Size : 64K Name : 2fe52592:data-0 (local to host 2fe52592) UUID : b381ff03:14024c0e:2aa4480f:2a32d549 Events : 2647 Number Major Minor RaidDevice State 0 8 3 0 active sync /dev/sda3 1 8 19 1 active sync /dev/sdb3 4 8 35 2 active sync /dev/sdc3 5 8 51 3 active sync /dev/sdd3 /dev/md/data-1: Version : 1.2 Creation Time : Sun Jun 5 07:42:20 2016 Raid Level : raid5 Array Size : 1953245824 (1862.76 GiB 2000.12 GB) Used Dev Size : 976622912 (931.38 GiB 1000.06 GB) Raid Devices : 3 Total Devices : 3 Persistence : Superblock is persistent Update Time : Mon Oct 2 11:13:16 2017 State : clean Active Devices : 3 Working Devices : 3 Failed Devices : 0 Spare Devices : 0 Layout : left-symmetric Chunk Size : 64K Name : 2fe52592:data-1 (local to host 2fe52592) UUID : 06d21306:1331bfc0:3c121f70:7580b7cc Events : 3251 Number Major Minor RaidDevice State 0 8 20 0 active sync /dev/sdb4 1 8 4 1 active sync /dev/sda4 2 8 36 2 active sync /dev/sdc4
Did you try rebooting the NAS?
I just noticed that X-RAID is no longer highlighted on the system > volume screen. I'm not sure how that happened, it was definitely selected the last time I upgraded a 3TB disk to 4TB (because the automatic volume expansion worked that time).
Anyway I am going to do a full backup and then enable X-RAID and see if that fixes this issue
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