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

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156 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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1answer
244 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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1answer
88 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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118 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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1answer
313 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 ...
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172 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 ...
3
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1answer
58 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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362 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 ...
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2answers
307 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
5k 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
6k 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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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 ...
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1answer
149 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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1answer
858 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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1answer
99 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
386 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
487 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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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 ...
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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 ...
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1answer
418 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 ...
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1answer
155 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 ...
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1answer
974 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. ...
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1answer
354 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 ...
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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 ...
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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 ...
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1answer
204 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 ...
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2answers
1k views

Formula to calculate probability of unrecoverable read error during RAID rebuild

I want to compare the reliability of different RAID systems with either consumer (URE/bit = 1e-14) or enterprise (URE/bit = 1e-15) drives. The formula to have the probability of success of a rebuild ...
2
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1answer
74 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 ...
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1answer
746 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 ...
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3answers
4k 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 ...
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1answer
168 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 ...
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1answer
505 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 ...
3
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1answer
275 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 ...
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1answer
199 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 ...
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1answer
1k views

using ZFS on an external USB drive for backup in Ubuntu

I run Ubuntu 12.04 precise and would like to format, using ZFS, an external USB HDD to use it as a backup drive for my home directories. Since it's just one drive I am not interested in self-healing ...
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2answers
347 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 ...
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1answer
756 views

Can't complete a SMART test on FreeNAS

I'm trying to run a disk test with smartctl -t long on FreeNAS. But the test immediately aborts with Aborted by host. From what I've read, this is because the system is using the drive, so it cannot ...
4
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2answers
7k views

Automount ZFS zpool in Ubuntu 12.04

So, I've been told that ZFS for Linux has the ability to automatically mount a zpool on system startup in Ubuntu 12.04, but it doesn't work for me and I can't find any documentation on how to make it ...
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2answers
372 views

Do I need differential backups in ZFS?

I am considering migrating from (debian + mirrored raid + daily differential backups + weekly full backups) to ZFS raidz. Is there any point of performing backups in ZFS the same way as my current ...
6
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1answer
10k views

NAS - ZFS system versus NTFS or EXT4 system

I was contemplating purchasing a QNAP 459-II for my home storage/streaming needs and a friend advised me that I should look into ZFS rather. I read up a bit on the filing system technology and was ...
2
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1answer
503 views

Will custom kernel module persist through kernel upgrades?

I was wondering if custom kernel modules that I compile and install via a package will persist through a kernel upgrade. I am trying to install ZFS as kernel module in Ubuntu but the problem is ...
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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 ...
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2answers
1k views

How to access freebsd zfs partition under Linux using zfs-fuse?

I have installed dual OSs on my PC box: Linux and FreeBSD. The FreeBSD is installed on a ZFS partion under /dev/sdb1. Under Linux, the fdisk -l /dev/sdb outputs Device Boot Start End ...
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1answer
2k views

A ZFS or LVM or MD redundant heterogeneous storage proposal

I have the same problem most people have: how to create a reliable personal storage solution with the fact that: Hard drives fail with alarming regularity. Losing files is unacceptable. I will buy ...
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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 ...
2
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1answer
645 views

ZFS distribution in Linux kernel? [closed]

If anyone has a better title for this question feel free to edit I am wondering about something related to the conflict between CDDL (Sun's license) and the GPL. Mainly pertaining to the reason ZFS ...
3
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1answer
607 views

using ZFS and local hard drives as a cache for a remote iSCSI SAN

This is purely theoretical idea, i dont plan on doing this any time soon, but could you use Local hard drives as a kind of Cache to remote drives stored on Amazon EC2, shared to a user via iSCSI? The ...
2
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1answer
257 views

ZFS Scrub isn't making any progress

I started a zfs scrub operation over 10 hours ago, and it doesn't seem to be making any progress: # zpool status pool: foo state: ONLINE scan: scrub in progress since Sat Nov 26 00:11:38 2011 ...
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0answers
217 views

Reading VMFS data from ZFS snapshot

I am wondering about something and maybe someone can give me a clue. If I have a server running ZFS plus an iSCSI target for my VMware ESXi box. Would ZFS snapshots of the iSCSI virtual block device ...
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2answers
425 views

Can you migrate an installation of Ubuntu Server from one volume to another?

Apparently, this question might be subjective (though I don't know how). Essentially, here's what I have in mind: I'm going to be building a NAS and am considering Ubuntu for the OS due to some of ...