Please Help me with my 5Big Network 2

[Jocko]

:thumbup

Well why you did not include sda8 ? Do you have data on it ?

Then to include sda8 on md0, do

Code: Select all

mdadm --grow /dev/md0 --raid-devices=5 --add /dev/sda8

Note: I do not know if you can mix gpt partition table(sda8) with ms-dos partition tables in a raid0 but you must try.

After you need to increase you raid

Code: Select all

resize2fs /dev/md0

But I think you need first to unmount md0 so do first before including sda8

Code: Select all

umount /dev/md0

Of course before rebooting, you need to save the new raid configuration in mdadm.conf file as described in the howto

[macdalor]

running all commands fine but seems to be getting stuck on the last one

Code: Select all

root@Lacie5Big:/ # umount /dev/md0


Code: Select all

root@Lacie5Big:/ # mdadm --grow /dev/md0 --raid-devices=5 --add /dev/sda8
mdadm: --size, --raiddisks, and --add are exclusing in --grow mode


Code: Select all

root@Lacie5Big:/ # resize2fs /dev/md0
resize2fs 1.42.11 (09-Jul-2014)
Please run 'e2fsck -f /dev/md0' first.



Code: Select all

root@Lacie5Big:/ # e2fsck -f /dev/md0
e2fsck 1.42.11 (09-Jul-2014)
Pass 1: Checking inodes, blocks, and sizes

it's been checking inodes for the last hour...
Is this a normal behaviour?

[Jocko]

Indeed with a 5TB partition size this may run for a long time with resize2fs.

So you need to bring the command in the background :
- open another ssh window
- search the pid value of the resize2fs command

Code: Select all

ps aux

- put in background

Code: Select all

kill -STOP pid
kill -CONT pid

(where pid is the pid value)

Then you will be able to close the first window without breaking the resize command

[macdalor]

ok, done all that, but it doesn't seem to have worked...surely for the GPT/ms-dos partitions difference...

Screen Shot 2016-09-17 at 16.57.23.png

Do I need to reinstall the FVDW firmware in dos partition?

edit: or maybe just the SDA8 in ms-dos?

[Jocko]

Disks setup menu will be updated only after rebooting the nas but you have to do it only when resize2fs command will be ended.

To check if resize2fs is still running do

Code: Select all

ps aux

[macdalor]

Disks setup menu will be updated only after rebooting the nas but you have to do it only when resize2fs command will be ended.

To check if resize2fs is still running do

Code: Select all

ps aux

damm...restarted already! :lmao

ok...lets start again...I'll become an expert if I carry on like this... :geek:

[macdalor]

didn't work... :scratch

Code: Select all

root@Lacie5Big:/ # sudo mdadm --detail /dev/md0
/dev/md0:
        Version : 01.00.03
  Creation Time : Sat Sep 17 10:25:30 2016
     Raid Level : raid0
     Array Size : 3893898752 (3713.51 GiB 3987.35 GB)
   Raid Devices : 4
  Total Devices : 4
Preferred Minor : 0
    Persistence : Superblock is persistent

    Update Time : Sat Sep 17 10:25:30 2016
          State : clean
 Active Devices : 4
Working Devices : 4
 Failed Devices : 0
  Spare Devices : 0

     Chunk Size : 64K

           Name : 0
           UUID : 5668ffdd:e6ca22a8:84c3917d:a7a8e08e
         Events : 0

    Number   Major   Minor   RaidDevice State
       0       8       24        0      active sync   /dev/sdb8
       1       8        8        1      active sync   /dev/sdc8
       2       8       72        2      active sync   /dev/sdd8
       3       8       56        3      active sync   /dev/sde8
root@Lacie5Big:/ #


[fvdw]

Think the command you gave to add sda8 was not correct

root@Lacie5Big:/ # mdadm --grow /dev/md0 --raid-devices=5 --add /dev/sda8
mdadm: --size, --raiddisks, and --add are exclusing in --grow mode

Seems grow and add cannot be used in same command.
So sda8 was not added...

[fvdw]

Seems must be something like this (I am no raid expert, took this from the internet)

Code: Select all

mdadm --add /dev/md0 /dev/sda8
mdadm --grow --raid-devices=5 /dev/md0

[Jocko]

:pound
indeed it is the right commands