Readynas 6 drive replacement issue- volumes inactive

Question

Had a degraded drive, which I replaced (slot 2) per the Netgear provided guides.&nbsp; Now I have an error stating "Remove inactive volumes to use the disk. Disk # 1,3,4,5,6"&nbsp;I don't see any of the data nowAug 21, 2019 01:16:18 PM
System: ReadyNASOS background service started.
Aug 21, 2019 01:11:45 PM
System: The system is shutting down.
Aug 21, 2019 01:05:25 PM
Account: User 'Greg' was deleted.
Aug 21, 2019 12:37:48 PM
System: Alert message failed to send.
Aug 21, 2019 12:37:48 PM
Disk: Disk in channel 4 (Internal) changed state from RESYNC to ONLINE.
Aug 21, 2019 12:35:15 PM
System: ReadyNASOS background service started.
Aug 21, 2019 12:34:40 PM
System: Firmware was upgraded to 6.10.1.
Aug 21, 2019 12:28:56 PM
System: The system is rebooting.
Aug 21, 2019 12:27:04 PM
Disk: Disk Model:WDC WD40EZRZ-00GXCB0 Serial:WD-WCC7K6ZPRCC4 was added to Channel 2 of the head unit.
Aug 21, 2019 12:23:18 PM
Volume: Volume data health changed from Degraded to Dead.
Aug 21, 2019 12:23:16 PM
Disk: Disk Model:WDC WD40PURX-64GVNY0 Serial:WD-WCC4E5JTFYZU was removed from Channel 2 of the head unit.
Aug 21, 2019 01:00:41 AM
Volume: Volume data is Degraded.
Aug 21, 2019 12:00:20 AM
Snapshot: Snapshot c_1566360017 was successfully created for share or LUN Videos.
Aug 21, 2019 12:00:19 AM
Snapshot: Snapshot c_1566360017 was successfully created for share or LUN sharpinvestigations.
Aug 21, 2019 12:00:19 AM
Snapshot: Snapshot c_1566360017 was successfully created for share or LUN Pictures.
Aug 21, 2019 12:00:18 AM
Snapshot: Snapshot c_1566360017 was successfully created for share or LUN Music.
Aug 21, 2019 12:00:18 AM
Snapshot: Snapshot c_1566360017 was successfully created for share or LUN Documents.
Aug 20, 2019 05:34:02 PM
Snapshot: Snapshot prune worker successfully deleted snapshot 2019_06_22__00_00_00 from share or LUN Videos.
Aug 20, 2019 05:34:02 PM
Snapshot: Snapshot prune worker successfully deleted snapshot 2019_07_17__00_00_29 from share or LUN Videos.
Aug 20, 2019 05:34:01 PM
Snapshot: Snapshot prune worker successfully deleted snapshot 2019_06_22__00_00_00 from share or LUN sharpinvestigations.
Aug 20, 2019 05:34:01 PM
Snapshot: Snapshot prune worker successfully deleted snapshot 2019_07_17__00_00_29 from share or LUN sharpinvestigations.
Aug 20, 2019 05:34:01 PM
Snapshot: Snapshot prune worker successfully deleted snapshot 2019_06_22__00_00_00 from share or LUN Pictures.
Aug 20, 2019 05:34:00 PM
Snapshot: Snapshot prune worker successfully deleted snapshot 2019_07_17__00_00_29 from share or LUN Pictures.&nbsp;

StephenB · Answer

This bit looks unusual:
Aug 21, 2019 12:27:04 PM Disk: Disk Model:WDC WD40EZRZ-00GXCB0 Serial:WD-WCC7K6ZPRCC4 was added to Channel 2 of the head unit.
Aug 21, 2019 12:23:18 PM Volume: Volume data health changed from Degraded to Dead.
Aug 21, 2019 12:23:16 PM Disk: Disk Model:WDC WD40PURX-64GVNY0 Serial:WD-WCC4E5JTFYZU was removed from Channel 2 of the head unit.
Aug 21, 2019 01:00:41 AM Volume: Volume data is Degraded.
Are you sure you swapped the correct drive?&nbsp;

LITS1337 · Answer

Yes, it is definitely the correct drive.&nbsp; I found it so strange it went from degradated to dead immediately upon removal.&nbsp;

StephenB · Answer

LITS1337&nbsp;wrote:
Yes, it is definitely the correct drive.&nbsp; I found it so strange it went from degradated to dead immediately upon removal.
&nbsp;

Can you post mdstat.log (from the log zip file)?

LITS1337 · Answer

Here you go! thanks for the help&nbsp;Personalities : [raid0] [raid1] [raid10] [raid6] [raid5] [raid4] 
md1 : active raid10 sdf2[4] sde2[3] sdd2[2] sdc2[1] sda2[0]
      1305600 blocks super 1.2 512K chunks 2 near-copies [5/5] [UUUUU]
      
md0 : active raid1 sda1[0] sdf1[5] sde1[4] sdc1[2] sdd1[6]
      4190208 blocks super 1.2 [6/5] [UUU_UU]
      
unused devices: &lt;none&gt;
/dev/md/0:
           Version : 1.2
     Creation Time : Wed Nov 29 15:43:23 2017
        Raid Level : raid1
        Array Size : 4190208 (4.00 GiB 4.29 GB)
     Used Dev Size : 4190208 (4.00 GiB 4.29 GB)
      Raid Devices : 6
     Total Devices : 5
       Persistence : Superblock is persistent

Update Time : Thu Aug 22 09:22:33 2019
             State : clean, degraded 
    Active Devices : 5
   Working Devices : 5
    Failed Devices : 0
     Spare Devices : 0

Consistency Policy : unknown

Name : 33eaea2a:0  (local to host 33eaea2a)
              UUID : cc433f86:16254560:32f207b3:c217a7d2
            Events : 21199

Number   Major   Minor   RaidDevice State
       0       8        1        0      active sync   /dev/sda1
       6       8       49        1      active sync   /dev/sdd1
       2       8       33        2      active sync   /dev/sdc1
       -       0        0        3      removed
       4       8       65        4      active sync   /dev/sde1
       5       8       81        5      active sync   /dev/sdf1

StephenB · Answer

Looks like md127&nbsp; (the data volume) is completely absent now.&nbsp;
&nbsp;
Do you have a back up of the data?

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Readynas 6 drive replacement issue- volumes inactive

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