The zfs tag has no wiki summary.
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0answers
24 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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0answers
16 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 ...
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1answer
70 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 ...
1
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1answer
53 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
60 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
66 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
94 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 ...
1
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1answer
91 views
Why is ZFS stored in a binary tree structure?
Apparently, in the ZFS (filesystem), there is an uberblock that points to the root of a zpool tree. Does anyone know why this tree makes things more efficient/reliable, and where the tree itself is ...
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0answers
73 views
What are the advantages of ZFS over other file systems? [closed]
Other filesystems - such as LFS, FFS, etc - in terms of reads, and for writes for general-purpose workloads
Are there any disadvantages for using ZFS?
1
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1answer
79 views
ZFS (file system): what is an “uberblock” used for?
Why does ZFS (and possibly some other file systems out there) tend to use an "uberblock" on top of imaps? Why can't there just be multiple imaps instead of the uberblock?
2
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1answer
92 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!). ...
4
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3answers
264 views
TAR vs CPIO, what is the difference?
I am curious and did a bit of reading but still have questions.
What makes CPIO different than TAR? I was told in another question that tar is for pulling together many files into 1 archive which ...
1
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2answers
86 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 ...
3
votes
1answer
335 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
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1answer
114 views
How to disable autoresume of a ZFS-formatted drive on Ubuntu
I've bought an external hard drive. I want to use it with Ubuntu 11.04 (kernel 2.6.38-11-server) and the zfs-fuse package. I've successfully formatted the disk to zfs. The disk is suspending when it ...
0
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1answer
149 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 ...
2
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2answers
276 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 ...
2
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1answer
509 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, ...
0
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2answers
230 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 ...
6
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4answers
3k views
Access a ZFS volume in Windows?
You'd think this would have been asked but I can't seem to find it so...
Let's say I have a ZFS setup in this enclosure (8 bay USB3 JBOD):
http://www.sansdigital.com/towerraid-/tr8uplusb.html
Now, ...
3
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3answers
1k 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 ...
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3answers
234 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 ...
1
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1answer
377 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 ...
6
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1answer
513 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 ...
2
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2answers
266 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 ...
0
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1answer
1k 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 ...
2
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1answer
606 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
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0answers
306 views
Suggestions on DIY NAS for home use [closed]
I am interested in building a NAS for home use. I have an Ubuntu desktop, a Windows 7 laptop, an iPad, and an old ibook that I would want use in conjunction. In doing some research, I found this ...
4
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2answers
366 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 ...
1
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1answer
888 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 ...
3
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1answer
2k 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 ...
6
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4answers
828 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 ...
0
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1answer
405 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 ...
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1answer
653 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 ...
0
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2answers
681 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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3answers
701 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
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3answers
1k 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 ...
2
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1answer
2k 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 ...
4
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7answers
5k 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 ...
3
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2answers
471 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
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2answers
501 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 ...
4
votes
1answer
7k 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 ...
2
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2answers
507 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 ...
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10answers
27k 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?
