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

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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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1answer
78 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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810 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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1answer
195 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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2answers
360 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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610 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 ...
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3answers
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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 ...
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312 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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212 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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2k 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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474 views

which ZFS-like filesystem can optimize volume selection based on file access patterns?

Is there a redundant RAID/ZFS-like filesystem that can optimize the placement of files based on their access patterns? My goal is to build a desktop system that will automatically move files among a ...
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6k 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 ...
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1answer
933 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 ...
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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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415 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 ...
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1answer
11k 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 ...
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1answer
532 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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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
655 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 ...
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1answer
662 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 ...
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1answer
275 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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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
594 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 ...
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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 ...
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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 ...
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437 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 ...
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415 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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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 ...
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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 ...
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388 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 ...
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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 ...
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2answers
540 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 ...
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1answer
1k 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, ...
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2answers
678 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 ...
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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 ...
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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 ...
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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 ...
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7answers
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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 ...
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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 ...
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1answer
721 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
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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 ...
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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.
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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 ...
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2answers
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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 ...