ZFS is supported out of the box on a number of operating systems: Solaris 10 Oracle Solaris 11 Express FreeBSD Nexenta Community Platform / NexentaStor Enterprise Due to license incompatibilities, the CDDL licensed ZFS code cannot be distributed as part of the GPL licensed Linux kernel. Other ...
3
votes
0answers
24 views
Freenas 8 — cannot move files between ZFS volumes
My freenas 7 worked reasonably well. When I did a fresh install of freenas 8 it became impossible to copy or move files from one ZFS volume to another.
E.g.,
/tank/
/tank/content/
/tank/archive/
...
-1
votes
2answers
98 views
Will a SSD cache increase Native ZFS performance for me?
I'm using Ubuntu 11.10 Desktop x64 with Native ZFS using a mirrored pool of 2x2 TB 6.0 Gbps hard drives. My issue is that I'm only getting about 30 Mb/s read/write at any time, I would think my system ...
1
vote
0answers
33 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
2answers
63 views
Where can I find introductory documentation for ZFS?
I recently installed OpenIndiana because of an interest in ZFS. I like the feature-list of ZFS, but I'm having a hard time wrapping my head around how to configure it. All of the documentation I ...
0
votes
0answers
18 views
FreeBSD: Error creating new slice using gpart
The virtual hard disk of one of my VPS has been enlarged, and I want to create a new ZFS slice using the extra space, but I couldn't be able to perform that.
# gpart add -s 10G -t freebsd-zfs da0
...
-1
votes
0answers
71 views
raid storage device with 8+ hdd's [closed]
I am looking for a raid storage device that can hold minimum 8 hdd's with ZFS RaidZ to store the data redundant without the need of drives of the same size etc. The software is not a problem, I just ...
7
votes
2answers
99 views
zfs and future expandability
I want to build a server using freebsd 9 and zfs. I have some old hardware (intel quad core with 8 gb ram) lying around, and I am willing to purchase two or three 1 TB disks. I also have a dlink RAID ...
1
vote
0answers
71 views
ZFS and FreeNAS Performance
I have just set up an HP Micro Server N40L as a FreeNAS with 4 2tb drives in a RAIDZ. I am getting around 30-40MB/sec, with occasional bursts of 50MB/sec., reads and writes that are similar to the low ...
2
votes
2answers
74 views
ZFS RaidZ Import Failure when migrating
So my the USB drive attached to my FreeNas 7 system, went bad so I used the situation as an opportunity to upgrade to FreeNas 8. The problem is now I'm having trouble getting my ZFS to spin up:
...
8
votes
2answers
195 views
Since upgrading to Solaris 11, my ARC size has consistently targeted 119MB, despite having 30GB RAM. What? Why?
I ran a NAS/SAN box on Solaris 11 Express before Solaris 11 was released. The box is an HP X1600 with an attached D2700. In all, 12x 1TB 7200 SATA disks, 12x 300GB 10k SAS disks in separate zpools. ...
2
votes
3answers
71 views
ZFS, raidz1: Why is the volume size (42T) so much smaller than the pool size (50T)?
I have a pool of 28 2TB-disks (56T) in 4 arrays of 7 disks. Since it's raidz1 (~RAID5), I'd expect 1 disk to be used for parity in each array, so the resulting volume should be 2TB*4*(7-1)=48TB, ...
0
votes
2answers
89 views
Undelete ZFS file shared by Samba
A user deleted a directory containing an important file over a Samba share.
Share was from a Nexenta box running ZFS, raid-Z3.
Last backup was 12 hours ago - is there a way to recover the 1 day's ...
1
vote
2answers
41 views
Mounting hdds in Solaris
I'm new to Solaris and trying to set up zfs pool but when I try this command: zpool create mirror tank c3t2d0 c3t3d0, I get this error: cannot open c3t2d0 no such device in /dev/dsk.
After checking ...
1
vote
0answers
76 views
Looking for tutorial on FreeBSD based Samba server on ZFS filesystem with OpenLDAP backend [closed]
I am looking for a tutorial for specially:
FreeBSD 8.2 with ZFS as storage (this has been done)
Samba as fileserver
OpenLDAP as user storage
I have set up a FreeBSD 8.2 with ZFS for filestorage, ...
4
votes
3answers
177 views
ZFS Pool with Different Drive Sizes
I am planning on setting up a FreeNAS ZFS pool using two 2 tb drives and two 1tb drives. I would like to have data redundancy somehow. I read this post which seems to suggest my two options are to ...
6
votes
3answers
146 views
“zpool replace” hangs and locks up the pool
Given my four disk RAIDZ1, one disk has become physically noisy, not producing errors yet, but not sounding healthy either. So I've chosen to pre-emptively replace it.
I have done:
zpool offline ...
0
votes
1answer
131 views
Dell PERC 4/DC (PowerEdge 2850) and ZFS
I understand that ZFS prefers to have as much data about the drives as possible, and that the best thing to do is turn off RAID.
The hardware environment is a Dell PowerEdge 2850 with PERC 4/DC and ...
4
votes
2answers
183 views
zfs-fuse file permissions problems on CentOS/RHEL 5
I'm working with zfs-fuse as a way to provide filesystem compression on existing CentOS 5 servers. I'm dealing with a highly-compressible dataset (80%), so zfs-fuse comes in handy. I'm encountering ...
2
votes
2answers
103 views
ZFS: Redistribute zvol over all disks in the zpool?
Is there a way in which ZFS can be prompted to redistribute a given filesystem over the all of the disks in its zpool?
I'm thinking of a scenario where I have a fixed size ZFS volume that's exported ...
2
votes
2answers
77 views
How to delete all but last [n] ZFS snapshots?
I'm currently snapshotting my ZFS-based NAS nightly and weekly, a process that has saved my ass a few times. However, while the creation of the snapshot is automatic (from cron), the deletion of old ...
1
vote
1answer
48 views
ZFS: can per-user encrypted filesystems be deduplicated on block-level?
Let's assume I build a storage system where each user gets his/her own encrypted filesystem on top of a ZFS pool. Would deduplication on pool-level still work when each fs is encrypted?
What ...
1
vote
2answers
120 views
ZFS: Best-practices doc state: “On systems with 1,000s of ZFS file systems…”?
The docs state:
"On systems with 1,000s of ZFS file systems, provision 1 GB of extra memory for every 10,000 mounted file systems including snapshots."
What does that mean - how do these people use ...
0
votes
4answers
232 views
16 HDD bays in an off the shelf standalone server? [closed]
We currently are using custom built servers as standalone backup machines (using rsync/zfs snapshotting). They run freebsd (just so we can use ZFS) and have 16 SATA HDD's in them all connected as ...
2
votes
1answer
603 views
KVM on Illumos (OpenIndiana vs. SmartOS)
I'm considering virtualizing a number of guests onto a single server running a recent port of KVM to Illumos. It sounds like my two primary options will be OpenIndiana and SmartOS. The distribution ...
0
votes
0answers
37 views
ZFS - use pure ACLs to force group write permissions to be inherited
I am migrating a directory structure from a UFS filesystem to ZFS. In the old location I had POSIX ACLs set to force all new files/directories within the structure to be created with group write ...
1
vote
1answer
148 views
How much does FreeBSD differ from Linux?
I was trying to setup a NAS box for my ESXi server using linux, I was going to install ZFS and iSCSI and I thought everything was going to be awesome. I was wrong...
ZFS on Linux is not the most ...
1
vote
2answers
372 views
NFS issue brings down entire vSphere ESX estate
I experienced an odd issue this morning where an NFS issue appeared to have taken down the majority of my VMs hosted on a small vSphere 5.0 estate.
The infrastructure itself is 4x IBM HS21 blades ...
1
vote
6answers
221 views
MegaRAID JBOD substitute
It seems that certain MegaRAID chips don't support JBOD (unfortunately).
I've read online that to make these controllers act as a pass-through, I should configure the disks in RAID0.
What RAID0 ...
1
vote
4answers
271 views
ZFS on Linux for RHEL/OEL NFS Sharing
I'm trying ZFS on Linux for Oracle Linux (OLE) 6.1 (Red Hat RHEL 6.1 compatible clone).
I successfully compiled and installed spl and zfs on it for Oracle Unbreakable Kernel.
Zfs is working and I ...
0
votes
2answers
102 views
ZFS on Linux for RHEL/OEL Installation
I'm trying Oracle Linux (OLE) 6.1 (Red Hat RHEL 6.1 compatible clone).
Actually I'm not familiar neither with RHEL nor with OLE.
I want to try ZFS on linux for RHEL as provided in this guide .
sudo ...
2
votes
2answers
168 views
Problems configuring an SSH tunnel to a Nexentastor appliance for use with headless Crashplan
Problem
I am attempting to configure an SSH tunnel to a NexentaStor appliance from either a Windows or Linux computer so that I can connect a Crashplan Desktop GUI to a headless Crashplan server ...
3
votes
1answer
157 views
Native ZFS doesn't free up space when deleting files
I'm running native ZFS on Ubuntu 11.10 with 2x2 TB drives in a mirrored setup. The ZFS file system is mounted directly in Ubuntu and not through NFS or something like that, the permissions are set too ...
0
votes
1answer
35 views
MSCS file share majority: Why does it like a Windows-hosted share, but not a CIFS-based ZFS-hosted share?
I'm looking to change the current file share used for the file share witness in an existing two-node MSCS SQL cluster. Currently, the share is hosted by a remote windows machine, and I want to move ...
1
vote
2answers
60 views
Solaris ZFS ACLs
I want to reset the ACLs on a directory tree so that the root directory ACL replaces the ACLs on all files and folders below it. How best can I achieve this?
Edit: Is this question poorly worded? Can ...
0
votes
1answer
34 views
Samba shows each file several times in the same folder
I have Samba 3.5.11 on Debian/kfreebsd sid. (Also tested with 3.6.1 from experimental)
I have a zfs filesystem Storage/Photos.
If I open one the the folders on there (Storage/Photos/folder1) it shows ...
0
votes
2answers
68 views
Debian/kFreeBSD using ACLs on ZFS
How can I use ACLs on a ZFS filesystem under Debian/kFreeBSD?
uname -a
GNU/kFreeBSD foo1 8.2-1-amd64 #0 Thu Oct 27 20:48:27 UTC 2011 x86_64 amd64 Intel(R) Xeon(R) CPU X3220 @ 2.40GHz GNU/kFreeBSD
...
2
votes
2answers
146 views
ZFS - setting physical disk start point of pool/filesystem
I'm testing harddisk performance, and would like to test writing to the outer tracks of my harddisk with ZFS. One way of doing this would be to create a pool/filesystem with a start point just a few ...
3
votes
2answers
326 views
When using thin-provisioning with ZFS, how do you make sure you don't run out of physical disk space?
Forgive me if this seems like a fundamental question, but I couldn't really find anything concrete on Google, and I'm not a system administrator by trade.
We are setting up a SAN at our office using ...
2
votes
1answer
136 views
Monitoring ZFS-FUSE
I am setting up a Debian-based host with a bunch of KVM-based virtual machines. Images of these VMs reside on a ZFS volume (I use ZFS-FUSE 0.6.9). Performance results seem to be very different from my ...
2
votes
1answer
49 views
Move data from root ZFS into child filesystem
I have a zpool (pool verion 13, FS version 3, called tank0) with about 2.5TB of data in the root of the pool (i.e. directly in /mnt/tank0). OS is FreeBSD, actually FreeNAS version 0.7.2.
I would like ...
2
votes
4answers
287 views
ZFS or hardware RAID5
I got couple servers not long time ago with pre-installed hardware RAID5. I plan to use those servers as a dedicated NAS (with some VMs) on my LAN.
Currently I see these options:
disconnect HDDs ...
4
votes
3answers
144 views
How do I migrate a ZFS system to new hardware?
Can somebody explain how I can import (or transfer) a pool?
Right now I'm using a dedicated file server machine. It is using onboard SATA plus an LSI 9211-8i SAS card.
I'm moving everything into a ...
2
votes
1answer
127 views
Potential problems running MongoDB on OpenSolaris & ZFS?
I've been using MongoDB on CentOS with ext4 for a few months now with no problems. I'm potentially going to be moving to Joyentcloud, and their SmartOS is based off of OpenSolaris and uses ZFS. I'm ...
0
votes
2answers
157 views
Acquiring new servers to run ESXi and SAN/NAS
Here is our goal:
Setup new servers to turn our entire physical computer network into 3 physical groups, which are:
Server 1 - NAS - Openfiler/NexentaStor CE/FreeNAS/(Other Suggestions)
...
1
vote
1answer
48 views
ZFS ACL's with Snapshots
Let's say I have a ZFS filesystem set up to share to users via CIFS, but ACLs are fine grained into the subfolders of the share to where certain users can't go into. Let's also say I'm leveraging ZFS ...
1
vote
1answer
78 views
How do I rename devices when using ZFS fuse on linux
I've just started using ZFS on linux and have already run into problems.
I connected my old data drive to my server to copy my data to my new ZFS volume. However, when I removed this drive and ...
2
votes
2answers
284 views
How do I recover from a faulted zpool where one device is OK, but was temporarily offline?
I have a zpool with 4 2TB USB disks in a raidz config:
[root@chef /mnt/Chef]# zpool status farcryz1
pool: farcryz1
state: ONLINE
scrub: none requested
config:
NAME STATE READ ...
2
votes
2answers
213 views
What are the problems with running a file server (FreeNAS) in a VM?
I have a FreeNAS file server that uses ZFS for redundant storage.
I'm considering running this as a virtual machine using VMWare Workstation (I would give the VM access to the physical disks, rather ...
2
votes
1answer
57 views
Explanation to this zpool
I found such a pool and am asking how the data lays on the disks
NAME STATE READ WRITE CKSUM
ssdpool ONLINE 0 5 0
...
1
vote
3answers
102 views
Is it possible to limit folder size in NexentaStor Community Edition
For example if i have a 4TB ZFS Volume, is it possible to create 3 folders and then limit each folder to, say, 2GB. If so, how?
I have googled hard and wide but to no avail - all i get is info on the ...
