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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2answers
1k views

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 ...
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1answer
887 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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2answers
967 views

The receiving of returns by Nagios from script through NRPE

I am using nagios3 and want to collect some information from nrpe_server. Next script is at nrpe_server: #!/bin/sh #set -x # script for checking disk usage on ZFS # requires min zpool version 13 or ...
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4answers
4k views

FreeBSD + ZFS + Encryption ? Alternatives ? Suggestions?

I would like to create a dedicated physical server which will work as a NAS & fileserver inside my LAN (as well as through VPN). However I need to fully encrypt the drives (both the system ones ...
3
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1answer
853 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 ...
4
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2answers
295 views

FreeBSD zfs timeout errors

I have FreeBSD 8.2 with ZFS v28. 8 cpu core, 16Gb ram. Two disk drives (1.5Tb WD Green) on zfs mirror raid. My system strangely uses memory. With alot of free (wired) memory it start to use swap and ...
2
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1answer
262 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
384 views

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 ...
0
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1answer
477 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
votes
1answer
586 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 ...
3
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1answer
711 views

Allowed and safe characters for ZFS filesystem in FreeBSD

Which characters are allowed and safe for ZFS file system name? Are this characters only ASCII or UTF-8 is supported? '@' is not allowed because it is reserved for snapshots. PS: I play with FreeBSD ...
5
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1answer
703 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 ...
4
votes
1answer
449 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
1k views

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 ...
10
votes
4answers
514 views

The future of OpenSolaris

since OpenSolaris is more or less abandoned by Oracle, is there a nice alternative that implements the unique features of OSOL? ZFS is one thing, but I liked the image creation system, that let you ...
9
votes
1answer
289 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. ...
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7answers
2k views

ZFS under Linux, does it work?

Could I get ZFS to work properly in Linux? Are there any caveats / limitations?