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Capacity missing after growing a RAID5 array - Printable Version

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+---- Thread: Capacity missing after growing a RAID5 array (/showthread.php?tid=13869)



Capacity missing after growing a RAID5 array - cbayleynz - 05-09-2018

I just grew my RAID5 array by adding 2 disks but the web interface and 'df' are not showing the new capacity.
mdadm and fdisk do show the increased capacity.

What gives ?


N5810PRO:~# df -h /dev/md0
Filesystem      Size  Used Avail Use% Mounted on
/dev/md0        3.6T  2.9T  740G  80% /raiddata/0
N5810PRO:~# 
N5810PRO:~# 
N5810PRO:~# 
N5810PRO:~# fdisk -l /dev/md0
Disk /dev/md0: 7.3 TiB, 7990781673472 bytes, 15606995456 sectors
Units: sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 4096 bytes
I/O size (minimum/optimal): 65536 bytes / 262144 bytes
N5810PRO:~# 
N5810PRO:~# 
N5810PRO:~# 
N5810PRO:~# mdadm --detail /dev/md0
/dev/md0:
        Version : 1.2
  Creation Time : Sun May  6 20:38:15 2018
     Raid Level : raid5
     Array Size : 7803497728 (7442.00 GiB 7990.78 GB)
  Used Dev Size : 1950874432 (1860.50 GiB 1997.70 GB)
   Raid Devices : 5
  Total Devices : 5
    Persistence : Superblock is persistent

    Update Time : Wed May  9 10:09:39 2018
          State : clean
 Active Devices : 5
Working Devices : 5
 Failed Devices : 0
  Spare Devices : 0

         Layout : left-symmetric
     Chunk Size : 64K

           Name : N5810PRO:1  (local to host N5810PRO)
           UUID : 58ef4569:6961c37c:f6f69ff2:cc12416a
         Events : 5801

    Number   Major   Minor   RaidDevice State
       0       8        2        0      active sync   /dev/sda2
       1       8       18        1      active sync   /dev/sdb2
       2       8       34        2      active sync   /dev/sdc2
       4       8       66        3      active sync   /dev/sde2
       3       8       50        4      active sync   /dev/sdd2
N5810PRO:~# 


RE: Capacity missing after growing a RAID5 array - Thecus - Yvon - 05-11-2018

Dear Sir,

As user's manual list it is need RAID migrate and expand steps, thus please ensure the RAID expand process completed.