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Questions tagged [zfs]

ZFS is a modern file system and volume manager originally developed by Sun Microsystems and licensed under the CDDL. It is a copy-on-write file system with support for large storage arrays, protection against corruption, snapshots, clones, compression, deduplication and NFSv4 ACLs. An open-source fork of ZFS can be found at http://open-zfs.org/ , which is supported by ZFSonlinux.org, illumos.org and ZFS developers in the FreeBSD & Mac OS X communities.

ZFS is supported out of the box on a number of operating systems:

  • Solaris 10
  • Oracle Solaris 11 Express
  • FreeBSD
  • NexentaStor
  • illumos - specifically, illumos-based distributions, like:
    • Nexenta's illumian
    • Joyent's SmartOS (server OS with strong focus on virtualization)
    • OmniTI's OmniOS (general purpose server OS)
    • OpenIndiana (general purpose desktop/server OS)

Due to license incompatibilities, the CDDL licensed ZFS code cannot be distributed as part of the GPL licensed Linux kernel. Other alternatives methods are available for running ZFS on Linux:

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FreeNAS: How to increase scrub 'threshold'?

My NAS box is set to default scrub threshold every 35 days. How do I change it to scrub every Saturday night? Do I need to create a cron job? I'm on FreeNAS-8.0.4-RELEASE-p2-x64 (11367)
Dan
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Native ZFS Configuration on Ubuntu

I'm experimenting with Native-ZFS on Ubuntu right now. Here are the drives installed on the system: 2 x 2TB 3 x 1TB a 200GB operating system disk I've got the OS installed and the stable ZFS RC for 12.04 installed via the PPA. In terms of ZFS…
Ryan N
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16 HDD bays in an off the shelf standalone server?

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 straight jbod's and zfs handles the rest. We have had…
bobinabottle
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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 yum groupinstall "Development Tools" I added OL…
BBK
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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 that so that it's hosted over CIFS by a Solaris NAS…
growse
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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 (on Windows 7, Total…
netmano
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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) Server 2 - ESXi Server with the following VM's: VM1 -…
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zfs permissions issue ? "Not owner"

I've come across a strange issue. I've got a zfs partition mounted, in it a solaris "hard partition" zone has been created. We have noticed that the /home directory root in the global zone cannot access this directry at all global> id uid=0(root)…
Matthew Watson
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Disk throughput dramatically reduced when using ZFS on OpenSolaris?

I'm building a simple ZFS file server for the small business I work for. The server is a Dell Poweredge 840, with 1GB RAM. The OS (OpenSolaris 2009.06) is installed on one SATA drive, and there are three other SATA drives installed for storage:…
aaronbeekay
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Nexenta can not read the pool label/ error 5 on import root pool

I have a home Nexenta Store CE server and after shutting it down to move it it will not boot up anymore. It turns on and detects all 7 drives ( 6 data drives plus 1 smaller OS drive) then it gives me the blue Nexenta boot loader, I hit enter and it…
Luma
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Move opensolaris zone to other disk

We have some opensolaris zones running on ISCSI disks. The ISCSI server has performance issues so we need to move to another storage solution. For now we want to move to local disk. Is there a way to change the disk and keep the zones…
Martijn de Munnik
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btrfs vs. ZFS on a Ubuntu file server

I have a server which is running Ubuntu (Server Edition), and its main job is serving files through FTP (vsftpd) and AFP (netatalk). My /srv directory is starting to fill up, and I need to add more hard drives. Because its technology is outdated for…
Kudu
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Finding the bottleneck in Nexenta?

I built a Nexentastor server (free edition) and I am having serious disk performance issues. This same box had FreeNAS on it before and it was much much faster. Here are the specs: Dual core E6600 cpu 4GB of good memory 6x 1.5TB Seagate drives…
Luma
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Hardware recommendations / parts list for a modern, quiet ZFS NAS box - 2011-Feb edition

I want to build some really reliable storage for my data, and it seems that ZFS is the only filesystem at the moment that does live checksumming. That rules out DroboPro, so I'm looking to building a quiet ZFS NAS that would start with 4 2TB or…
Dan Dascalescu
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Server OS for hosting virtual servers with ZFS?

I'm looking to build a small business server with the goal of having it do little more than hosting a few virtual servers on it. The virtual servers will be running Linux. Originally I thought about having the main physical server OS being a Linux…
Nick
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