How do I create a filesystem that is larger than 16TB?

Please use a gparted live cd for that. Under Debian Squeeze you can only create filesystems up to 16TB. This problem will be fixed when the next major version is released which will be based upon Debian Wheezy.

Greetings
David

use XFS.

XFS support more of 16TB now , no need to wait new version

FYI, the XFS filesystem cannot be shrunk. This means that on a RAID setup, you cannot easily reduce the size of the array.

I had a 4x2TB RAID5 array (for a total of 6TB), but was only using 3TB. I wanted to take one of the drives from the array and use it elsewhere, and shrink the size of the array down to 4TB. I believe you can do this with an EXT4 filesystem, but not XFS, so I was sweet out of luck

This may or may not be an issue for you.

Zitat von "Tyberious Funk"

FYI, the XFS filesystem cannot be shrunk. This means that on a RAID setup, you cannot easily reduce the size of the array.

I had a 4x2TB RAID5 array (for a total of 6TB), but was only using 3TB. I wanted to take one of the drives from the array and use it elsewhere, and shrink the size of the array down to 4TB. I believe you can do this with an EXT4 filesystem, but not XFS, so I was sweet out of luck

This may or may not be an issue for you.

Correct. XFS cannot be shrunk, EXT4 can (offline/unmounted).

Greetings
David

Hello, I have a question.

I want to mount a raid5 with 6 hard disk (4tb each one)

if I have understood correctly, i could mount the raid without problem from a 64-bit version of the OS, but after formatting for ext4 would have to do it from a Wheezy livecd.
My question is, then I can handle this volume correctly from the inteface openmediavault as normally.

I'm pretty new and I've always used ext4, xfs never really have anything else I know of this file system,in this case it is advisable to use it, of course it would be much more comfortable.

thanks

Hello sagatxxx,

no problem using it, after you've created it with a gparted livecd.

Greetings
David

Zitat von "davidh2k"

Hello sagatxxx,

no problem using it, after you've created it with a gparted livecd.

Greetings
David

im just after a little clarification on 64bit ext4 file system. i eventually will have 6x4tb drives, but am building my system with 4x2tb drives.
i intend to boot with gparted format the disks as explained above, and then use the OMV online expansion to convert to raid6 with 4x2tb and 2x4tb (lowest drive size wins for raid size). then once i have a nice raid6 setup, i will replace (one by one) the 2tb drives for 4tb until i end up with 6x4tb

will the raid expansion work withing OMV if i create the file system using gparted? i realise what i am planning is not exactly basic stuff! why make it easy?

Not until the new Version of OpenMediaVault (Kralizec) is out.

Edit: Aaron was faster...

Greetings
David

or should i just go XFS and not get too carried away with technicalities?

lol 3 posts at the same time!
i think i will take the less risky route and go XFS from the start. i assume that can be expanded/raid type converted on the fly?

just one more thing
when is the next version of OMV slated for general release?

XFS can be expanded online. But I have to advise you to be carefull, each expansions also includes the risk of a complete file loss...

Greetings
David

Zitat von "ryecoaaron"

In a month or two.

cool, thanks for the info. i may well hang fire on buying the extra 4tb drives until it is released and then be on 0.6 before committing myself. BTRFS :twisted:

hello,
I am making myself a NAS 16x6To (WD Caviar Red) Is this possible, or 96TB XFS with the new version 1.0.20 omv Kralizec?

Sorry for English I use google trad ...

Thank you for the reply,
what is the max size with this version?

XFS never was limited to 16TiB.

Greetings
David