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

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4
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1answer
5k views

FreeNAS: single-disk ZFS?

I have an older PC being re-purposed as a FreeNAS box for the household LAN. So far I've got FreeNAS installed to a USB thumb drive and a 500GB SATA drive for storage. I went and unmounted the hard ...
0
votes
1answer
754 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
votes
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
votes
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
votes
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 ...
2
votes
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 ...
6
votes
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 ...
3
votes
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
votes
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 ...
2
votes
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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vote
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 ...
2
votes
2answers
569 views

ZFS NAS: PCI-e x1 SATA or built-in ICH10R?

I am planning to install Nexenta (or NexentaStor, I've not decided yet) to build a ZFS NAS out from the following machine: MB: Intel DG45FC Disks: 4x 2TB WD caviar green RAM: 2x 2GB of non-ECC ...
7
votes
4answers
1k views

How to build a NAS?

I have quite a bit of photos I'd like to organize and get away from sparse DVDs and move to a NAS solution. Ideally, this would let me have some level of redundancy and more easily find what I'm ...
2
votes
1answer
2k views

NFS4 / ZFS: revert ACL to clean/inherited state

My problem is identical to this Windows question, but pertains NFS4 (Linux) and the underlying ZFS (OpenIndiana) we are using. We have this ZFS shared via NFS4 and CIFS for Linux and Windows users ...
1
vote
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 ...
2
votes
1answer
392 views

Rendundant & versioned filesystem [closed]

Introduction Only wimps use tape backup: real men just upload their important stuff on ftp, and let the rest of the world mirror it! (Linus Torvalds) That was a long time ago (well... 1996!). ...
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2answers
4k views

Piping in and out of tar and gzip

I am trying to get a handle on how to pipe from a command into something like gzip, cpio or tar. The commands in question belong to the ZFS system. I am running ZFS on Ubuntu Linux 10.04.3. The ...
4
votes
1answer
1k views

How to use ZFS on linux easily (without paths like /var/run/zfs) or as non-root

When I asked about filesystems with compression I got recommendation to try ZFS. Looks like it worth trying, however I find tools that manage ZFS (zfs, zpool) quite overcomplexified - you need to ...
1
vote
1answer
371 views

Recommendations for Filesystem

I have built the bones of a NAS system (which comprises of Ubuntu server 11.04 on 500GB SATA drive, and 3 2TB SATA disks in software RAID5 configuration)... I'm looking for some advice on what ...
4
votes
3answers
2k views

Transferring existing files from ext3 to ZFS (on FreeBSD)

I use an old machine as a file server, for backups, and as a testbed for development. I currently have Debian installed, but I'm very interested in FreeBSD because of ZFS: I really, really like its ...
4
votes
2answers
538 views

ZFS performance issue

i recently set up a FreeNAS server with the following specs: 2.2Ghz AMD Processor 5GB RAM (just put in what i had) 500GB system drive (with a data partition, probably UFS?) 2x1TB data drives in a ...
3
votes
1answer
995 views

Can't figure out HD replacement in FreeNAS 8

So I'm testing this out in VirtualBox, and I've got two 10GB drives as a test (mirror of ada1 and ada2, ZFS). I create a zpool/volume called "tank" with the two drives, no problem. Then I power off, ...
2
votes
2answers
664 views

ZFS RAIDZ Parity

I am building an OpenSolaris box to attempt to use ZFS and RAIDZ. I am starting simple with the OS on one drive and wanting to store all my data on the RAIDZ volume. I am a bit confused on RAIDZ is ...
2
votes
1answer
4k views

Setting up an email alert when ZFS disk fails on FreeNAS

I am trying out FreeNAS 0.7.2 Sabanda (revision 5226) with 4x1TB disks, single parity ZFS RAID. While the email reports built into FreeNAS are good, I was wondering if there was a way I could get it ...
1
vote
1answer
437 views

Why is de-dupe feature of ZFS not working with FreeBSD 8.2

I have FreeBSD 8.2 installed on AMD/64 with 3 GB RAM and 690 GB pooled HD under ZFS. I have two copies of an identical file (180 MB video) in same directory and yet df -h indicates that both are using ...
3
votes
1answer
4k views

How can I tell if ZFS (zfs-fuse) dedup/compression is applied to a particular file?

I have a zfs formatted partition using zfs-fuse for linux (Ubuntu). I had used it for a while, and then enabled dedup and compression on it (zfs set compression=on/dedup=on). Now I think I have some ...
6
votes
7answers
7k views

Setting up a home server - what to use? (ZFS vs btrfs, BSD vs Linux, misc other requirements)

I need to get all our home content off individual machines and onto a central server. What I'd like to have is the metaphorical "server under the stairs". Stuff we need: expandable storage. I ...
0
votes
1answer
1k views

How to recover zfs pool when root fs fails

I have a FreeBSD 8.0 amd64 box w/ 1 ATA drive for system and 4 SATA drives as a RAIDZ pool. The ATA drive isn't mirrored nor part of any pool, but also doesn't hold any valuable data. How can I ...
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vote
2answers
1k views

How to mount a LOFS in Solaris that doesn’t cross mountpoints

I need to access my "root" ZFS dataset to delete a file under "/var". But "/var" is overlayed by another ZFS dataset. Since these are system datasets I can't "umount" them while the machine is ...
1
vote
1answer
708 views

Best filesystem choices for NFS storing VMware disk images

Currently we use an iSCSI SAN as storage for several VMware ESXi servers. I am investigating the use of an NFS target on a Linux server for additional virtual machines. I am also open to the idea of ...
6
votes
3answers
2k views

Feedback on Using ZFS and FreeBSD

I need to create a server that will be used solely for backing up files. The server will have 2TB of RAID-5 storage to begin with but I may want to add additional storage later on. As such, I am ...
3
votes
1answer
6k views

How to add a mirror-disk to my OpenSolaris?

I have a machine with two harddrives. I have installed OpenSolaris on one of them and now I want to add the other one as a mirror-drive in my zpool rpool. I guess I have to format the second disk ...
3
votes
2answers
496 views

Where is the ZFS project for the Mac located as of 2010?

Where is the ZFS project for the Mac located as of 2010? The Mac Forge project appears to have closed down.
4
votes
1answer
8k views

ZFS Hard Drive Configuration in FreeNAS

I've been messing around with FreeNAS installed on a USB Flash Drive for a week or so, just testing all the services and possible hard drive configurations utilizing ZFS. It's a pretty neat setup but ...
5
votes
2answers
988 views

ZFS moving drives around

At some point I'm going to build an OpenSolaris based NAS. I was wondering that if I make a 4 drive RaidZ1 pool and at some point need to move the pool to another OpenSolaris server do is there ...