An advanced file system that can span multiple disks, heal itself from data corruption, deduplicate data, encrypt, etc.

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ZFS + dedup: copy many small files fast

I'm running a ZFS backup server (with deduplication) to backup websites and store them with retention. To do this, I transfer all files to the backup server during the first backup, and make a copy of ...
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2answers
365 views

How to make a snapshot of the “whole” zroot (ZFS-on-root)?

I have tried the experimental ZFS-on-root partitioning scheme available on FreeBSD 10. It seems to work fine except for a booting problem that I can quickly overcome. Anyway, this is the "partition" ...
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304 views

ZFS on linux: switch partition to whole disk

There is a ZFS pool with raidz1 in it. The pool is created on top of three 2TB drives using the whole disk and a 2TB partition on a 3TB drive. What is the recommended process to reconfigure the pool ...
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2k views

How can I access the contents of a ZFS snapshot without affecting its current data?

I have a ZFS dataset which gets hourly snapshots taken. Yesterday, a change was made to some of the files which needs to be reverted; however, the dataset has ongoing changes which shouldn't be ...
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84 views

ZFS on top of LUKS partitions

I have weird problem I cannot quite explain. I have three hard disks. One is the root disk sda, and then there are two more, namely sdb and sdc. The latter have two LUKS partitions sdb1 and sdc1 and ...
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147 views

Is ZFS (filesystem) good for SDcards?

Ive reviewed all filesystems listed here: http://en.wikipedia.org/wiki/Comparison_of_file_systems I like ZFS the most out of all of filesystems listed there. But is it the best choice for ...
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701 views

Cheaper alternative to ZFS Storage for a home NAS

I'm looking to build a NAS for home use with 8-10*(2-4TB) drives, out of which 2-3 drives would be used for parity via software RAID. In the past years and up to date, ZFS seems to have become the ...
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889 views

How to encrypt a zpool in Linux

Does zfs on linux have a built in command to encrypt entire pools (or zfs file systems)? If not - how should one proceed to do so? (I'm running zfs on an Ubuntu Server 12.04LTE)
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232 views

ZFS vs existing filesystem for SD-card

I'm thinking that micro SD-cards, because of their high storage density, are probably especially susceptible to bit rot. So I thought I might give ZFS a try. (I'm open to alternatives..) However, I ...
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242 views

Is it a bad idea to have one of multiple partitions of an ssd as cache in a raidz2 setup?

I'm setting up a system with 5 HDD's in RAIDZ2 and one SSD where the OS goes. I'm considering partitioning the system drive (the SSD) to set the free partition of the SSD as a cache in the RAIDZ2. ...
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211 views

ZFS and FreeNAS: Mirror using half a drive

I'm planning to set up a FreeNAS server with two of my spare drives: 1x 1TB drive 1x 2TB drive Both drives are identical besides their capacity and neither has any data on it. Is it possible to ...
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77 views

zfs for Linux – formatting disks

I just installed the zfs file system for Linux, but now I do not know how to format a drive with it. I am running Ubuntu 12.04 LTS Desktop and trying to format two external hard disks to mirror each ...
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2k views

Converting LVM/EXT4 to ZFS without losing data

I have a home media server with 2 x 3TB drives in it. Its currently set up using mdraid (1), LVM and EXT4. The setup was done using the ncurses Ubuntu Server installer. Goal Convert the setup to use ...
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1answer
342 views

Running ZFS as MediaStorage with non ECC-Ram

First to the Setup: I'm planning to use 8-11 USB3 Disks to form a MediaStorage The idea is to use 2 USB3 Hubs to balance the load between two seperate USB3 Ports (on different hubs) Now from what ...
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63 views

When partitioning devices for zfsonlinux, what is the correct “Partition type GUID” to use, or is this important at all?

I want to use zfsonlinux on a Debian system. Since I have advanced format drives and will employ LUKS, I have to partition the device by hand. A forum entry at archlinux.org points out that the ...
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2answers
1k views

Change ZFS disk references to use GPTID instead of GEOM name?

I've built a FreeNAS rig on a sweet little HP ProLiant MicroServer. Storage wise, I've created a 3 disk ZFS pool using RAIDZ1. I started out with 3 small disks, while getting familiar with FreeNAS, ...
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112 views

ZFS formated USB drive in mirrored zpool keeps becoming unavailable. Any idea why?

I have two 4 TB USB drives in a mirrored zpool running on Debian 7.2. About once a week, the zpool will go into a degraded state with the following error: status: One or more devices could not be ...
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523 views

FreeNas ZFS Non-Striped Configuration To Maximize Available Space?

I have a 4 disk (2.0TB each) FreeNas setup and I want to maximize the space available for storage. From what I've read that would involve using the stripe configuration, but that also increases the ...
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133 views

Migrate LVM to ZFS

I am currently thinking about moving away from my LVM setup to a ZFS setup with RAIDZ. My current setup consists of 5 x 4TB disks in a LVM and a 60GB SSD for the system. At the moment there is about ...
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3answers
630 views

Is there a benefit to having NAS with ECC memory and ZFS filesystem when I work on systems with neither?

Recently I've read some alarming stats on corruption rates in systems with non-ECC RAM and typical filesystems. From what I can Google, having a system with ECC RAM running ZFS is probably the best ...
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2k views

Can I create a ZFS mirror in FreeNAS using different sized disks?

I've just bought a new 4-bay N54L server for home use. I've upgraded it to 8G of RAM, which will permit me to run FreeNAS 9.1.x with ZFS. I've loaded a new 2TB SATA disk plus a spare 250G disk into ...
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307 views

Compact, up to date, LiveCD supporting LUKS and ZfsOnLinux

I'm looking for a nice compact LivecD to support a new installation. The Gentoo minimal install CD is about the perfect thing, except it does not support ZFS. The Gentoo LiveDVD does Support both ...
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1answer
4k views

zpool: pool I/O is currently suspended

I'm using ZFS on OSX and I've zpool which is active and online: NAME SIZE ALLOC FREE CAP DEDUP HEALTH ALTROOT WD_1TB 931G 280G 651G 30% 1.00x ONLINE - but I can't ...
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86 views

zfs snapshot -r for a single, simple dataset?

According to the man page zfs snapshot -r "recursively create[s] snapshots of all descendent datasets". As per http://docs.oracle.com/cd/E18752_01/html/819-5461/ftyue.html dataset is a generic name ...
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247 views

Seagate USB '3.0' Speeds with Ubuntu ZFS

I am currently researching zfs. I have a RAIDZ-2 system with an SSD Cache. My issue is backups, our idea is to send snapshots to a USB 3.0 Seagate external harddrive. I understand and have read the ...
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169 views

Setting up Debian file server, looking for advice about what file system to use

I'm currently working on setting up a Debian media and torrent server for my home. Most of my home network is comprised of Macs, and up until now my "server" was two 4 TB hard drives formatted HFS+ ...
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1answer
942 views

FreeNAS planning - RAID controllers & expanding volumes

I'm considering building a FreeNAS box to replace a Synology DS1511 - mainly because I'd like it as a project with more flexibility. Couple questions: 1. Most people recommend a hardware RAID ...
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1answer
2k views

Home ZFS based NAS…What processor/chipset to use? [closed]

So, I'm building a home/personal NAS. My plan is to expose both SMB fileshares for sharing files/media between hosts, but also to carve an iSCSI target LUN out of it for use by VMWare as a datastore. ...
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620 views

Rsync fails for files that start with underscore when destination is zfs

I'm using rsync3.1.0pre1 on Mac OS X 10.8.5, and am trying to rsync one folder to another. The destination is a ZFS volume mounted via SMB. The problem I'm having is that files that start with ...
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29 views

Non Raid - Symbolic links

I have 3x 3TB drives and 2x 1TB drives. I want to use all drives without RAID, but to be shown as a single volume. So that if a drive fails only the information on that failed drive will be lost. ...
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85 views

Virtualization software that supports mounting host zfs zpool

what virtualization software should be used for a guest operating system (preferably BSD) that supports mounting host(Linux) zpools in the guest OS? I am aware of the vmware ability to mount hard ...
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1answer
855 views

Why isn't ZFS the default for fresh installs of FreeBSD?

(By the title, I'm sure this looks like an opinion question, but I'm actually looking for specific facts and materially, information to help me sort through some of the heavily in-favor-of-zfs ...
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1answer
2k views

Removing files on ZFS does not free disc-space

I'm trying to free space on a ZFS by removing files. They are large (>1GB) so it should show in the numbers. Unfortunately, after unlinking the files, df does not show any increase in available ...
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1answer
221 views

Access MacZFS via network from XBMC

I have a ZFS RAID (zpool with three drives) hooked up to my Mac that I want to share in my LAN so that the XBMC client on my OUYA console hooked up to the television can read the drive and use it to ...
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407 views

FreeNAS/ZFS/Raid-Z slightly different disks

I'm considering using FreeNAS and "recycling" some of my older 1TB disks. Two are the exact same model Western Digital while another is Seagate and the fourth is Samsung. Typically, since all disks ...
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144 views

How to mount zfs-fuse earlier in boot sequence so I can do rsyslog there on Ubuntu 12.04?

I'm trying to use zfs-fuse as the file system driver for a read/write partition that includes system logging on an Ubuntu 12.04 distribution. I have succesfully redirected rsyslog there by modifying ...
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177 views

Can't compile static ZFS binaries on Gentoo

My kernel: geek-sources-3.11.1 from init6 overlay with zfs and couple other patches. Right now I'm using SysRescCD and doing everything in a chroot. My last try was: $ grep static-libs ...
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507 views

Am I likely to encounter data loss when using ZFS send to copy a pool to a server without ECC memory?

I have an OmniOS file server with a ZFS raidz2 array that I want to back up to another machine over gigabit ethernet. The other machine is a Linux (Ubuntu 12.04) system with non-ecc RAM connected to a ...
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320 views

Moving root partition to new disks of different size by using ZFS mirroring

I have quite a few spare old 500GB WD Black disks that I'm going to be using for the root file system of a FreeBSD NAS at home. These disks have been in continuous use for 5 years within a rack server ...
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1answer
64 views

Managing disk in a VM

I'm replacing my two old rack servers with a new one that has plenty of power to take over the functionality my current servers. The server is a 4U rack mount with 16 3.5" SAS drive bays, two 2.5" ...
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479 views

Trouble copying files from Mac's Finder to a napp-it NFS share

I setup a new server running OmniOS and installed napp-it to configure all my ZFS settings and shares. I successfully mounted my NFS share on my Mac, but I'm unable to copy existing files/folders on ...
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3answers
13k views

ZFS with two disks: does this make sense? what is the safest configuration?

I am in the process of planning a file server for private usage (small amounts of various kinds of data, but mainly photos, videos, music). I will probably use NAS4free/FreeNAS and want to give ZFS a ...
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4answers
16k views

ZFS Beginner Setup with Different Size Drives

Sorry for the noobie questions, I've been Googling all sorts of walkthroughs to create my ZFS raid, but I can't seem to find the correct links for the answers I'm looking for. This is my first ...
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3k views

How strong is ZFS encryption?

I've been playing with ZFS for quite a while, and was wondering how secure the disk encryption is for ZFS and how long it would hold up under a determined attack (I'm aware some of it has to do with ...
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270 views

Should a RAID array of 3x7200 RPM HDDs be able to saturate a gigabit ethernet link?

I have a ZFS RAIDz (RAID5) array of three 7200RPM SATA2 drives in a FreeNAS virtual machine. I have multiple machines connected to this VM over a gigabit network. I'm seeing via bandwidth graphs that ...
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2answers
2k views

4k hard drives freebsd gpart and zfs

I have 3 hdd, with the next camcotrol identify. root@cirmos:/root # camcontrol identify ada1 pass2: <WDC WD10EZEX-00RKKA0 80.00A80> ATA-8 SATA 3.x device pass2: 300.000MB/s transfers (SATA 2.x, ...
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183 views

Replacing a disk with ZFS

I've been using ZFS for a RAID on my mac for the past few months and a few days ago one of the disks died. The computer didn't recognize it anymore, it shut off seconds after being turned on and made ...
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2answers
730 views

Can I safely migrate a ZFS pool from FreeBSD to Ubuntu?

I have a HP Microserver running FreeBSD 9.1. It has a ZFS pool which is a 3-way RAID Z. It currently boots from root on ZFS. I would like to migrate from FreeBSD to Ubuntu server (because I am more ...
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1answer
758 views

Why is ZFS gzip-9 compression so much worse than actually using zip files?

I am working with some very large packet capture files (~150GB across 30 files) but because of how highly redundant packet captures are, these compress to ~7% (14.29x) of their originally file size ...
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4k views

ZFS (on Linux)'s memory requirement for a non-fileserver computer

A lot of material on ZFS mentions that basically the more memory you can throw at it, the better. However, I plan to use ZFS on a notebook with 16GB of RAM -- while that should be enough for ZFS, I ...