Hello,Volume expansion seems to be running for 2 days now but I have no sign of progress within the GUI.See the HDD sizes and the actual disk space.Something is wrong but I don't know what.Someone told me to run this command to see if there is any progresswatch cat /proc/mdstatI just don't understand the output of the command.Any help please? AND WHY MY SCREENSHOTS WON'T SHOW?

The screenshots aren't showing because images are reviewed by a moderator before they are published (just in case someone posts something inappropriate). Once a moderator approves them they will then show. I can't see your screenshots, but what you are looking for is to see a resync with a percentage indicator of progress. You can alternatively copy and paste the text from the output ofwatch /cat/proc/mdstatrather than post a screenshot.The code tag option (see the </> button) is very good for posting that kind of output. Say you are using X-RAID you would have md0 (4GB OS volume), md1 (swap) and md127 (data volume).If you had say 3 disks installed and added a fourth you should see the 4th disk added to md0, md1 and md127. The md0 and md1 resyncs are very quick, but the md127 one would take a while.If you replace a disk with a higher capacity disk, not only will md0, md1 and md127 need to be rebuilt, but if you have at least two disks of the higher capacity installed a new layer md126 would be added (note this is just an example md127 could be the new layer showing and md126 the one already present). Once the resyncs have finished you should no longer see a rebuild status or percentage for any of the RAID arrays. The data volume should then expand provided your additions have met the requirements for expansion for the RAID level you have chosen. If it doesn't expand you could see if a reboot helps.

Here's an example from a redundant single-layer volume with 6 disks: root@MDGM-NAS:~# cat /proc/mdstat Personalities : [raid0] [raid1] [raid10] [raid6] [raid5] [raid4] md1 : active raid10 sdg2[5] sdf2[4] sdd2[3] sdc2[2] sdb2[1] sda2[0] 1569792 blocks super 1.2 512K chunks 2 near-copies [6/6] [UUUUUU] md127 : active raid6 sdg3[6] sda3[0] sdf3[5] sdd3[3] sdc3[2] sdb3[1] 23422691328 blocks super 1.2 level 6, 64k chunk, algorithm 2 [6/6] [UUUUUU] md0 : active raid1 sdg1[6] sda1[0] sdf1[5] sdd1[3] sdc1[2] sdb1[1] 4190208 blocks super 1.2 [6/6] [UUUUUU] unused devices: <none>

I am afraid that's chinese to me. I ran your command and got the screenshot enclosed. After reboot log says system is up and volume settings says status is redundant, appart from that the system totally disregards the amout of available space and is still stuck at a much lower value of disk space. No expansion. The GUI really lacks information.

I suppose my issue won't progress until the moderator unlocks my screenshots 😒

Finally the screenshots are here. Now you can review my issue. Can you help? And please layman words

Volume expansion seems inactive | NETGEAR Communities

15 Replies

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mdgm
Virtuoso
Dec 26, 2020
The screenshots aren't showing because images are reviewed by a moderator before they are published (just in case someone posts something inappropriate). Once a moderator approves them they will then show.

I can't see your screenshots, but what you are looking for is to see a resync with a percentage indicator of progress.

You can alternatively copy and paste the text from the output of
watch /cat/proc/mdstat
rather than post a screenshot.

The code tag option (see the </> button) is very good for posting that kind of output.

Say you are using X-RAID you would have md0 (4GB OS volume), md1 (swap) and md127 (data volume).

If you had say 3 disks installed and added a fourth you should see the 4th disk added to md0, md1 and md127. The md0 and md1 resyncs are very quick, but the md127 one would take a while.

If you replace a disk with a higher capacity disk, not only will md0, md1 and md127 need to be rebuilt, but if you have at least two disks of the higher capacity installed a new layer md126 would be added (note this is just an example md127 could be the new layer showing and md126 the one already present).

Once the resyncs have finished you should no longer see a rebuild status or percentage for any of the RAID arrays. The data volume should then expand provided your additions have met the requirements for expansion for the RAID level you have chosen.

If it doesn't expand you could see if a reboot helps.
- mdgm
  Virtuoso
  Dec 26, 2020
  Here's an example from a redundant single-layer volume with 6 disks:
  
  root@MDGM-NAS:~# cat /proc/mdstat Personalities : [raid0] [raid1] [raid10] [raid6] [raid5] [raid4] md1 : active raid10 sdg2[5] sdf2[4] sdd2[3] sdc2[2] sdb2[1] sda2[0] 1569792 blocks super 1.2 512K chunks 2 near-copies [6/6] [UUUUUU] md127 : active raid6 sdg3[6] sda3[0] sdf3[5] sdd3[3] sdc3[2] sdb3[1] 23422691328 blocks super 1.2 level 6, 64k chunk, algorithm 2 [6/6] [UUUUUU] md0 : active raid1 sdg1[6] sda1[0] sdf1[5] sdd1[3] sdc1[2] sdb1[1] 4190208 blocks super 1.2 [6/6] [UUUUUU] unused devices: <none>
  - xtrips1
    Aspirant
    Dec 26, 2020
    Finally the screenshots are here. Now you can review my issue. Can you help? And please layman words
- xtrips1
  Aspirant
  Dec 26, 2020
  I am afraid that's chinese to me.
  I ran your command and got the screenshot enclosed. After reboot log says system is up and volume settings says status is redundant, appart from that the system totally disregards the amout of available space and is still stuck at a much lower value of disk space. No expansion. The GUI really lacks information.
  - xtrips1
    Aspirant
    Dec 26, 2020
    I suppose my issue won't progress until the moderator unlocks my screenshots 😒