ZFS, which stands for Zettabyte File System, is a combined file system and logical volume manager designed by Sun Microsystems.

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Mixing 4k/512 drives with ZFS (FreeNAS)

I have the following drives: Seagate Barracuda ST3200054AS WDC WD20EADS-00S2B0 Samsung HD204UI As far as I understand, the first are ordinary 512 drives while the last is 4096 (Advanced format). ...
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1answer
452 views

FreeBSD: Remove symlinks in devfs

Background I have been rebuilding a small home NAS. This server represents my first 'real' foray into the world of server administration and it has taught me quite a bit already. Originally, the ...
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1answer
873 views

AES-NI accelerated ZFS v31 encryption in Solaris 11

I'm not quite sure if this is the right place to ask this, if not, feel free to migrate it to wherever it fits in. I'm testing the encryption feature in ZFS v31 in a Solaris 11.11.11 VM under ESXi ...
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Is there a way to create cow-copies in ZFS?

I am trying to make cow-copies of some files/directories, but of the several ways I know of, all seem sub-optimal. For example, btrfs can, with the use of cp --reflink=auto quickly generate ...
5
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1answer
696 views

How to use keyfiles,for ZFS whole disk encryption?

Does anyone have a working implementation using keyfiles, preferably on SD Card, instead of a prompt for ZFS? I know how to do this with linux LVM/LUKS. In my opinion the FreeBSD full disk ...
3
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1answer
843 views

24 hour crash course in ZFS… some final questions

Due to various circumstances I've given myself a crash course on the ZFS file sytem. I need some help getting comfortable with the unknowns. Whatever those are. Data: Running www.zfsonlinux.org on ...
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1answer
261 views

FreeBSD zfs create gpt

How can i create gpt marks on working system. NAME STATE READ WRITE CKSUM zroot ONLINE 0 0 0 mirror-0 ONLINE 0 0 0 ad4p3 ONLINE ...
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0answers
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slow samba seek performance

I am using FreeBSD 9.0 RC3 (PCBSD distro) with samba 3.4.14. I am trying to access portions of several large (4 - 10 GB) files over samba using seek commands, and I am seeing that calls to the front ...
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474 views

ZFS adding new device to RAIDZ

I wondering about problem with adding new device to ZFS RAIDZ. I'm thinking about it only theoretically: After destroying ZFS pool with only RAIDZ in it. The data should be still there on the disks. ...
2
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1answer
572 views

adjust zfs settings on freebsd 9

What's the proper way on FreeBSD 9 to tune ZFS parameters such as vfs.zfs.arc_max and vfs.zfs.vdev.cache.size? I've seen references to /boot/loader.conf, /boot/kernel.conf and /etc/sysctl.conf but I ...
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1answer
440 views

Why is my CIFS share showing the same files multiple times?

I asked this on ServerFault but received no response, so I figured I'd give it a try over here instead! I have a Debian backup server running the FreeBSD kernel and a ZFS filesystem on which I store ...
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1answer
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Compared to other filesystems why is ZFS so slow, with incoming data?

Ok. I get about 1/3 of the speed on the same drives when using ZFS. Now, I understand that ZFS is self-healing and that everything is also stored with its hashes. This makes it safer to use. I ...
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1answer
287 views

What are you going to do with your OpenSolaris machines?

I have a file server running OpenSolaris (mainly for ZFS, which I really love), but since Oracle has abandoned it, I'm starting to think about what I'm going to do with the OS on that machine. ...