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ZFS is built for enterprise type "demands", not only for enterprise environments. The problem is that articles such as the ones published here on phoronix tend to judge ZFS based on performance...

I suspect that Ext4 could perform much better with even just basic tuning.

In particular the fact that Ext4 on a ZVol outperforms Ext4 on LVM+mdadm is probably because ZFS is auto-tuning every...

For me the biggest surprise here is that the 5-disk RaidZ outperforms the 10-disk RaidZ2.

Now I am going to have to test a pool with 2 x 5-disk RaidZ VDevs

http://openbenchmarking.org/result/1304291-FO-MERGE284129,1304257-FO-MERGE786390,1304271-FO-MERGE184123&obr_sor=y

I have been re-running some of the tests. After the kernel updates, some of the tests give better results (in particular the "4000 Files, 32 Sub Dirs" is more affected than the other tests)

The...

Some relevant package/version bits:

e2fsprogs-libs-1.41.12-14.el6.x86_64
e2fsprogs-1.41.12-14.el6.x86_64
lvm2-libs-2.02.98-9.el6.x86_64
lvm2-2.02.98-9.el6.x86_64
mdadm-3.2.5-4.el6.x86_64
...

Shnatsel,

ZFS provides all the file system and volume/space/redundancy/management features that you get from mdadm+LVM+Ext4 and more. Much more, in fact, but let me not get distracted - it is...

Now including ZFS RaidZ2 over 10 disks

http://openbenchmarking.org/result/1304266-FO-MERGE580440&obr_sor=y

1. When mounting ZFS with sync=disabled I actually get worse performance.

2. I did not get better results when mounting ZFS with checksum=off .... The results were the same to within the amrgin of...

I just patched again and got a few updates, including a new kernel.

# uname -a
Linux emc-grid 2.6.32-358.6.1.el6.x86_64 #1 SMP Fri Mar 29 16:51:51 EDT 2013 x86_64 x86_64 x86_64 GNU/Linux

I decided that separate ZIL / ARC etc caches would be an unfair advantage for ZFS. I wanted to compare as close as possible like-for-like functionality wise.

So for EXT4 I used Ext4 on LVM on...

This server is running RHEL 6.4 with current patches as well as ZFS-on-Linux 0.6.1 using the ZFS-on-Linux team's repository.

RHEL is in fact quite conservative about Kernel versions, but I do NOT...

I have said this numerous times and now I am able to back my claims with results

http://openbenchmarking.org/result/1304257-FO-MERGE786390

When given multiple dedicated disks, ZFS is...

Please accept my thank you, despite my criticism, for the hard work and effort you put into covering a wide range of topics, reviews, benchmarks and news tid-bits.

Michael, after my last complaints about how you test ZFS you did not change one single thing!?

ZFS perform middle of the road in these tests, and I agree that with ZFS not being part of the main...

It is not the CDDL that restricts license type mixing, it is the GPL (as evidenced by the fact that a: everything in the linux kernel must be GPL, and b: ZFS under CDDL is already included with the...

ZFS is made for systems with lots of disks, ideally spread over many controllers.

It is like saying Puppy Linux is faster (which most people read as better) than Ubuntu after testing it on a...

A lot is wrong with this kind of article, if not merely with the way the testing is done. I posted in some considerable depth about this in December.

One of my main gripes is that even though...