ReadyNAS 4312 - Volume Capacity for 12 x 8TB disks with RAID 6 & X-RAID

[intraxict]

Hi all,

Please point me in right direction if I have posted this in wrong category. This is my first post in this forum. I have done research about this but unfortunately I am unable to workour solution for the issue.

We have purchased ReadyNAS 4312X and initially installed 6 x 8TB disks with RAID 8 and X-RAID. We were getting 36TB storage capacity for the unit.

We have recently added more same disks and now we have same 12 x 8TB disks with same RAID settings. However we are only getting around 38TB at the moment. As per other posts, we should get more than 70TB storage with this configuration.

The unit is running latest firmware 6.6.1. There is only one volume setup on the system.

Thanks in advance for the assistance.

Nik

[mdgm-ntgr · Accepted solution]

It's resyncing now. Once that completes volume expansion should then take place.

[mdgm-ntgr]

What does your mdstat.log look like?

[mdgm-ntgr]

Any update?

[intraxict]

I was on leave that is why couldn't reply earlier.

Please see requested:

admin@INTSMNAS1:~$ cat /proc/mdstat Personalities : [raid0] [raid1] [raid10] [raid6] [raid5] [raid4]
md127 : active raid6 sda3[0] sdf3[7](S) sdb3[10](S) sdg3[11](S) sdj3[9](S) sdi3[8](S) sde3[6] sdl3[5] sdk3[4] sdh3[3] sdd3[2] sdc3[1]
39045873920 blocks super 1.2 level 6, 64k chunk, algorithm 2 [7/7] [UUUUUUU]

md1 : active raid6 sda2[0] sdi2[11] sdf2[10] sdg2[9] sdb2[8] sdj2[7] sde2[6] sdl2[5] sdk2[4] sdh2[3] sdc2[2] sdd2[1]
5232640 blocks super 1.2 level 6, 512k chunk, algorithm 2 [12/12] [UUUUUUUUUUUU]

md0 : active raid1 sda1[0] sdf1[7] sdi1[8] sdj1[9] sdb1[10] sdg1[11] sde1[6] sdl1[5] sdk1[4] sdh1[3] sdd1[2] sdc1[1]
4190208 blocks super 1.2 [12/12] [UUUUUUUUUUUU]

unused devices: <none>
admin@INTSMNAS1:~$

I am new to this log so not sure if above is enough or not. Please let me know if you need more details.

Thanks.

[mdgm-ntgr]

So as you can see 5 of the 12 disks in your data volume are marked as spare (S). In your case the data volume array is md127.

Can you send me your logs (see the Sending Logs link in my sig)?

[intraxict]

Logs sent as per instruction.

Thanks in advance.

[mdgm-ntgr]

Is your backup up to date?

I can see your data volume is 100% full

You shouldn't let your volume get that full. That probably explains why you've been having issues.

The expansion can be forced but I'd be much more comfortable with doing that if you have an up to date backup.

[intraxict]

We have purchased 2 of these units for disk based backups. We still have old backup system in place so answer is "Yes - our backup is up to date".

[mdgm-ntgr]

O.K. I've sent you a PM.

We'd recommend not filling the data volume to 100% full.

[intraxict]

Done, sent you number via PM.

[mdgm-ntgr · Accepted solution]

It's resyncing now. Once that completes volume expansion should then take place.

[intraxict]

Thank you mdgm, the issue has been resolved after resyncing and now we have 72.73TB available.

Thanks.

Nik