Format Raid 5 - 15 TB

zwiebel · 20. Dezember 2013

Hi everybody,

i setup a new openmediavault storage with 6 x 3 TB disks. All disks in a raid 5.
The State of the raid is "clean". Next step is to put a filesystem on this disks.
But this is not working via gui.

I don't think this is a openmediavault issue because on the command line i'm also not able to create a filesystem on this raid.

i tried cfdisk and fdisk with one big partition but i only got a smaller one.

I hope somebody is able to help me.

cheers
Zwiebel

davidh2k · 20. Dezember 2013

The creation of ext4 filesystems is limited to 16TiB due to the used e2fsprogs version 1.41 which is used in Debian Squeeze.

However, if you create the filesystem with something like gparted or parted magic you will be able to use the filesystem in OMV without any trouble.

Greetings
David

zwiebel · 20. Dezember 2013

i used knoppix and gparted to create a partition and filesystem. This worked very good.

But i can't mount the partition into the omv system via web gui.

on the command line i got this:

Code

root@networkstorage:/media# mount -t ext4 /dev/md127 /media/bigdisk/
mount: wrong fs type, bad option, bad superblock on /dev/md127,
       missing codepage or helper program, or other error
       In some cases useful info is found in syslog - try
       dmesg | tail  or so

many thanks
Zwiebel

raulfg3 · 21. Dezember 2013

why not use xfs, that do not have 16TB limit?

can be done by webGUI.

zwiebel · 21. Dezember 2013

Thanks for your support,

i tryed to use xfs via webgui - i got a error 4000

on the command line is mounting posssible i did a misstage!

root@networkstorage:/media# mount -t ext4 /dev/md127p1 /media/bigdisk/

i have to use the partition not the hole disk.

Why is it possible mounting via cml and not via web gui?

many thanks
Zwiebel

zwiebel · 22. Dezember 2013

Hi,

in the meantime i did some investigations. I reinstalled omv.

mount one disk with filesystem (ext3,ext4,xfs,jfs) -> working
raid 0 (ext3,ext4,xfs,jfs) -> working
raid 1 (ext3,ext4,xfs,jfs) -> working

raid 5 with tree disks (ext3,ext4,xfs,jfs) -> NOT working (same with all 6 disks) Error 4000
With a storage space from 5.46 TB this depends not on the 16TB limit...

can please somebody help me. I need the raid 5 setup of the disks.

cheers
Zwiebel

zwiebel · 23. Dezember 2013

Hi,

i still looking into this problem. I created a virtual enviroment with same setup (6x3TB Disks). Raid 5 with ext4 is no problem to mount it normaly.

Is something wrong on my hardware?

Mainboard: P8H77-V LE - https://www.asus.com/Motherboards/P8H77V_LE/
CPU: Core™ i3-3220
RAM: DIMM 2 GB DDR3-1333 (total 4GB)
SSD: SSDNow V300 2,5" SSD 60 GB (SYSTEM)
HDD: Seagate ST3000VN000

The SSD is connected via USB or a cheap PCI/SATA card.
The HDD Drives are connected to the 6 internal SATA interfaces.

The Mainborard offers UEFI Bios....

I hope somebody can help me with the fact i can't format a RAID 5 created DISK array.

cheers
Zwiebel

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