zfsonlinux provides a native Linux kernel port of the ZFS filesystem so that ZFS may run natively on Linux. zfsonlinux is very different then ZFS-fuse which provides ZFS on top of a userspace filesystem. zfsonlinux is hosted on zfsonlinux.org

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11
votes
1answer
289 views

Force update checksum on zfs?

I recently changed the checksum property on one of my non-duplicated zfs filesystems to sha256 from on (fletcher4) to better support the sending of duplicated replication steams, as in this command ...
7
votes
5answers
2k views

Where is the central ZFS website now?

Oracle dumped OpenSolaris in Fall 2010, and it is unclear if Oracle will continue to publicly release updates to ZFS, except maybe after they release their next major version of Solaris. FreeBSD now ...
4
votes
2answers
65 views

zfs - two pools with nested mountpoints and conflicting mount order

I have a problem with automounting separate pools, that have nested mountpoints. I am using ZfsOnLinux 0.6.2. The siuation currently is as follows: zpool1 ---> /var zpool1/log ---> ...
4
votes
2answers
321 views

ZFS Reporting (on FreeBSD and Linux via ZoL)

As a longtime mdadm user is was just experiencing a disk error and remembered that I configured a Auto Mail reporting for mdadm on disk errors. Therefore i just had to insert my Mail address inside ...
3
votes
1answer
154 views

Clear a permanent ZFS error in a healthy pool

I scrubbed my pool today, and after the scrub finished, I noticed there was an error that corrupted a file. I didn't care about the file, so I deleted it. Unfortunately, the error remains (now ...
3
votes
1answer
306 views

ZFS on Linux/Ubuntu: Help importing a zpool after Ubuntu upgrade from 13.04 to 13.10, device IDs have changed

I have updated Ubuntu from version 13.04 to version 13.10, only to discover that the SATA disks IDs have changed, and my ZFS pool now fails. On new Ubuntu 13.10 the disk IDs are now ata-* instead of ...
2
votes
3answers
169 views

MongoDB and ZFS bad performance: disk always busy with reads while doing only writes

I have huge performance issues using MongoDB (i believe it is mmapped DB) with ZFSonlinux. Our Mongodb is almost only writes. On replicas without ZFS, disk is completely busy for ~5s spikes, when app ...
2
votes
2answers
91 views

Why does zfs fail to cache this workload when “normal” filesystems cache it completely?

Update: because recordsize defaults to 128k, the amount of data read by the test program is much larger than the ARC on an 8GB system and still slightly larger than the ARC on a 16GB system. Reducing ...
2
votes
0answers
55 views

How do I get Ubuntu to forget about a destroyed zfs pool?

I have also asked this question over on Ask Ubuntu but I thought I'd try here as well. The details can be found at: ...
1
vote
1answer
127 views

Installing RHEL on a single disk with ZFS

I know ZFS is usually used for numerous reasons including it's amazing mirroring features. However in this instance the machine I've been tasked with setting up has a RAID-1 setup so I only have one ...
1
vote
2answers
149 views

Increase space of ZFS pool over iSCSI SAN, online

I have an iSCSI volume of 96GB on SAN, which has ZFS pool implemented on it. i have resized the size of SAN volume from 96 to 120GB, but the zpool list only shows the old space (96GB). how to achieve ...
0
votes
2answers
314 views

Multiple 2 TB LUNs — ZFS or ext4-over-LVM

I am going to deploy an Ubuntu 12.04-based archiving system. Due to limitations of the SAN Storage, it can only present me with 2TB LUNs. So, I have to merge multiple 2TB LUNs to achieve the desired ...
0
votes
0answers
35 views

Why isn't the arc_max setting honoured on ZFS on Linux?

I'm running ZoL 0.6.2 from their PPA on Ubuntu 12.04. It's on a host with 16GB of memory intended to run some VMs using KVM/Libvirt. After some time ZoL is using an insane amount of memory, reaching ...
0
votes
0answers
25 views

zpool does not auto mount on Debian server

I'm running a Debian 7.2 server and have created a raidz array with three 1TB drives (the operating system is running on a separate boot drive). I setup several ZFS datasets within the zpool and ...
0
votes
1answer
358 views

House roaming profiles on realm trusted samba server?

Raison D'ĂȘtre I am attempting, so far unsuccessfully, to house roaming profiles for an Active Directory domain on a realm trusted Ubuntu 12.04LTS ZFS-on-Linux file server. The end goal is to have an ...
-1
votes
2answers
82 views

ZFS didn't expand free space after add [closed]

I recently expanded my storage pool "zstorage" by adding two more drives. It had 3 3TB drives in RAID-Z, and I added two more 1.5TB drives also in RAID-Z (which I understand is effectively the same as ...