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

learn more… | top users | synonyms

6
votes
4answers
9k views

Start a ZFS RAIDZ zpool with two discs then add a third?

Let's say I have two 2TB HDDs and I want to start my first ZFS zpool. Is it possible to create a RAIDZ with just those two discs, giving me 2TB of usable storage (if I understand it right) and then ...
1
vote
2answers
173 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 ...
1
vote
1answer
578 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 ...
1
vote
1answer
2k 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 ...
0
votes
1answer
56 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 ...
9
votes
3answers
1k views

How to make a redundant desktop system with daily snapshots? (Is btrfs ready for use?)

I want to configure a desktop system in which the home filesystem would be redundant (e.g. RAID-1), and would have weekly snapshots taken. I've already done this with ZFS, the snapshot system is ...
1
vote
0answers
142 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 ...
2
votes
2answers
431 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 ...
0
votes
1answer
114 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+ ...
0
votes
1answer
163 views

FreeNAS 8 and ext fs

i'm trying out freenas8 for my personal NAS, i have lots of data that was in an ubuntu server, but somehow i never got the file sharing right. on freenas things just worked. i installed on usb, tried ...
0
votes
1answer
267 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 ...
1
vote
1answer
152 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 ...
2
votes
1answer
950 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. ...
2
votes
0answers
333 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 ...
1
vote
1answer
25 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. ...
3
votes
1answer
61 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" ...
0
votes
1answer
60 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 ...
2
votes
1answer
164 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 ...
0
votes
1answer
400 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 ...
1
vote
3answers
6k 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 ...
0
votes
1answer
196 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 ...
1
vote
0answers
127 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 ...
0
votes
1answer
334 views

How to backup a ZFS system to drives on a remote linux system

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 ...
1
vote
1answer
110 views

Limit the amount of data that can be stored in a folder on Ubuntu Server 12.04?

I'm in the process of building my first server. It's up, it's running, I'm transferring copious amounts of data away from my horrid little Drobo (DO NOT BUY ONE OF THESE, EVER). However, there's one ...
1
vote
0answers
375 views

SSDs for ZFS boot, ZIL and L2ARC [closed]

I'm assembling a 88 TB ZFS NAS with 128 GB RAM. The data that is going onto it will be write-once-only binary files, organized on average as 20+ GB files, and will thereafter be subject to multiuser ...
0
votes
2answers
336 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 ...
26
votes
11answers
45k views

Is ZFS and RAID-Z worth using in home made NAS (freeNAS for example)

Features of ZFS and RAID-Z look vary promising. Looks like it is a perfect FS for home NAS solutions, poor man's Drobo things and alike. Are there any drawbacks I should be aware of?
5
votes
2answers
2k 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 ...
2
votes
1answer
1k 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, ...
2
votes
2answers
640 views

zfs setup question

Currently I have a linux storage box and server with 4x750gb harddrives in raid-5 with ext3. I have ordered 3x1.5tb disks to upgrade this. Here is my planned upgrade: Backup: Format the 1.5 tb ...
0
votes
1answer
144 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 ...
0
votes
1answer
1k views

ESXi 5.1 - OS choices for a File Server

This past black friday i put together a small box I intended to use for a soho VM lab. i5 processor B75M-D3H Gigabyte motherboard 16GB of RAM 1TB seagate constellation HD (SATA3) I want to run a ...
2
votes
1answer
529 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 ...
3
votes
3answers
3k 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 ...
1
vote
1answer
464 views

Improving small-file-performance for ZFS On Linux

I used mdadm (RAID 5) and ext4 before, I switched to ZFS On Linux (raidz) because of many reason. But when I working with small files, the performance is terrible. Only 7 MiB/s!? How do I improved ...
1
vote
1answer
3k views

ZPOOL how to remove volume?

I had a strange issue with FreeNAS reporting mulitpath/disk1 is not stable for a while with a crcck of 5. I do not have any SAS on my MB. The rest all report as ada_ except that drive. In multipath ...
3
votes
1answer
1k views

hosting iscsi on smartos

I am trying to get back into the unix game for some storage projects we have got going. We would love to use joyents smartos (based on illumos) for that. Working with it is a real joy (setting up vms ...
1
vote
1answer
400 views

Handling whitespaces in the name of a ZFS dataset in a shell script

I'd like to take output from two commands – zpool list zfs list and for each found pool: zpool get all nameofpool and for each found file system: zfs get all nameoffilesystem Background and ...
2
votes
1answer
1k views

Best way to mount a remote ZFS share in Windows and make it appear local, or close to local

I primarily use Linux and Mac, where sharing folders and block devices is easy and just works. I have a 38TB ZFS-backed Ubuntu fileserver that pretty much stores all of my data for all of my devices. ...
1
vote
1answer
3k views

View ZFS deduplication ratio on a dataset

I have a tank consisting of several datasets, only one of which is configured to use deduplication. How can I see the ratio for this dataset? I get a ratio of 1.00x for the whole pool but I imagine ...
2
votes
3answers
5k views

Choice of an OS for a home ZFS NAS

I am preparing a home NAS with an old Athlon 64 X2 3800+, 4 GB ECC RAM, Asus M2V MX motherboard, and a single 3 TB WDC Green (another one as mirror may be installed in the future). It's the cheapest ...
0
votes
1answer
210 views

Using ZFS with little RAM?

I have an Acer EasyStore with a RAID5 mdraid array I use for storing my home files (photos, movies, etc), and I want to migrate it to ZFS with Ubuntu (the native kernel module from zfsonlinux.org). I ...
2
votes
1answer
77 views

Blacklist filename on FreeBSD ZFS

I have a ZFS based NAS that various platforms use for shared storage, namely Windows XP/7/8 and Linux. I've noticed that Windows clients are creating Thumbs.db files left right and centre, which I do ...
1
vote
1answer
769 views

Where is my VMware-ws FreeNAS CIFS(ZFS) bottle-neck?

Background: I'm building a quiet HTPC + NAS that is also supposed to be used for general computer usage. I'm so far generally happy with things, it was just that I was expecting a little better IO ...
3
votes
1answer
178 views

Unmounting a zfs pool while it is shared with sharenfs

I have a Solaris (open indiana) system which is getting poor disk write performance. In order to enable ZIL in this version of zfs I need to add a line to /etc/system. This will not take affect until ...
4
votes
2answers
350 views

What free space thresholds/limits are advisable for 640 GB and 2 TB hard disk drives with ZEVO ZFS on OS X?

Assuming that free space advice for ZEVO will not differ from advice for other modern implementations of ZFS … Question Please, what percentages or amounts of free space are advisable for hard disk ...
2
votes
1answer
557 views

ZFS compressed and deduped filesystem on file

I can create squashed filesystems with mksquashfs in this way: mksquashfs dir-1 dir-2 ... dir-n filesystem-on-file.squash -comp xz -Xbcj x86 -Xdict-size 1048576 -b 1024k mksquashfs provides ...
4
votes
3answers
1k views

RAID5 / RAIDZ - is it possible to enlarge without losing data?

If I have a RAID5 with 4x1TB drives, and then in, say, a year I decide to upgrade to 4x2TB, can I swap out one drive at a time, then let the parity rebuild, even if it's mixed-size drives? Obviously ...
3
votes
1answer
296 views

Can two seperate zpools exist on the same physical devices?

Short: Can I share a disk between two separate zpools? Long: I want a raidz2 array but I can't afford it all at once. My possible solution is to start with two drives. I would create a mirror using ...
1
vote
1answer
204 views

ZFS & Deduplicating FLAC Data

I'm experimenting with using ZFS to deduplicate a large library of FLAC files. The purpose of this is twofold: Reduce storage utilization Reduce bandwidth needed to sync the library with cloud ...