30TB storage ext3 with block-size or xfs or other

[informant]

Hi all,

we have a 30 TB Storage and would format the partition. What it the best file-format to use the storage. ext3 with block-size, xfs or other.

thanks for answers and best regards

 

[wahmed]

ext3 has file system limit of 32TB and single file size limit of 16TB.
ext4 has file system limit of 1EB and single file size limit of 16TB.

I think ext4 would be better choice for you. Also Redhat themselves recommends XFS over ext4 for volume larger than 100TB. XFS is very good. There were issues with it but only for earlier versions. Lot of bugs already has been fixed. One other option is BTRFS. But still maturing.

 

[informant]

Hi and thanks for your answer.

But, in proxmox are the speed in last version with ext4 slower as ext3. Is ext4 or XFS at the lastes version fixed and with good speed?

regards

 

[mir]

ext3 in proxmox defaults to option: barrier=no
Configuring ext4 likewise: barrier=no
and the speed is equal.
Using barrier=no in ext3 is no more safe than using barrier=no in ext4.

 

[informant]

hi mir,

very thanks. than we would use ext4. regards

 

[informant]

Hi,

a second little question about this. on standard iso installation of proxmox, we have this entry in fstab:

# <file system> <mount point> <type> <options> <dump> <pass>
/dev/pve/root / ext3 errors=remount-ro 0 1
/dev/pve/data /var/lib/vz ext3 defaults 0 1
UUID=ff9ceb66-7853-4f75-8587-f9913f53739a /boot ext3 defaults 0 1
/dev/pve/swap none swap sw 0 0
proc /proc proc defaults 0 0

no barrier=0 ?

if we would add our new storage we add only the following line on the end or with barrier=0

/dev/sda3       /media/storage-01       ext4    rw      0       0

regards

 

[mir]

In proxmox barrier=no is hard coded for ext3.
In fstab you should do:

/dev/sda3         /media/storage-01      ext4       rw,relatime,data=ordered,barrier=0    0    0