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6

I had the same Problem. Doing apt-get install ubuntu-zfs zfsutils and rebooting solved it for me. For some Reasons ubuntu did not update all zfs-packages. You can see if this is the case at the end of apt-get update output (packages held back)


3

You can add devices to a pool after it has been created, however not really in the way you seem to envision. With ZFS, the only redundant configuration that you can add devices to is the mirror. It is currently not possible to grow a raidzN vdev with additional devices after it has been created. Adding devices to a mirror increases the redundancy but not ...


3

1: In your configuration, btrfs should detect data corruption but won't correct it as there is no data redundancy as far as btrfs is concerned. 2: RAID6 doesn't detect nor reliably protect against bit corruption. It only protects against disk failure and in some cases might detect unused still bad blocks. 3: If btrfs RAID6 is not ready, you might consider ...


3

After a looong debug session I found that the build and source links in /lib/modules/2.6.32-openvz-042stab090.5-amd64 to /usr/src and /usr/include were missing. Added them manually and it worked. Everyime happy that I can work in Linux where I can at least look into the source and debug...


2

For me on Ubuntu 14.04 LTS, I had to set the following To automatically import the zpools, change the value from 1 to 0: File: /etc/init/zpool-import.conf modprobe zfs zfs_autoimport_disable=0 To automatically mount the zfs mounts, add the following line: File: /etc/rc.local zfs mount -a Restarted, and the zpool ZFS mounts were mounted ...


1

Are those 4k drives? Yes, you can see that they report 4096 byte physical which is the indicator for this. The 512 byte logical reporting is a result of drive manufacturers' attempt at backwards compatibility (and thus confuses things). gpart? In your situation I would use the following commands to gpart out the disk: # -- Force ashift to be at least 12 ...


1

If you want to create a raid with zfs using different disk sizes you need to use "zpool create (name of your pool) raidz1 -f sdb sdc sdd" the -f arqument force zfs to use different sizes example 500gb 1tb 250gb hd


1

You cannot make a snapshot of a zpool (zroot in your case). You can only take snapshots of filesystems on the zpool. What you can do is make snapshots of all relevant filesystems: for fs in $(zfs list | grep ^zroot | awk '{print $1;}' do echo "Making snapshot of ${i}" zfs snapshot ${fs}@fresh done


1

You are right your trouble is seek times. You should better use one of this two solutions : tar to create an archive of your dataset, I guess it will be faster or use snapshot directory function of ZFS


1

In your setup it would not. What I would recommend is using ZFS built-in RAID-z2, which is then able to perform bit-rot recovery. Enabling lz4 compression will also provide better performance, as well as space savings.


1

As you said in the comments, you are using the Oracle ZFS Storage Appliance. This appliance is a demo of the (ex) Fishworks product and is meant to be used through the integrated CLI and web UI. You will not be able to use the standard ZFS commands (well, you could hack the appliance, but that's not what it was designed for). If you want to have a ...


1

The answer was actually different. Just type confirm shell in the cli and you get it. However, it instantly breaks oracle warranty if you type anything else than exit in there.


1

Solaris 11 does not ask you if you want ZFS root because it has no other choice - only ZFS root is supported for Solaris 11 installs - UFS is relegated to supporting data disks only. See Oracle Solaris 11 File System Changes for more details.


1

This doesn't completely remove root login, but it does secure things beyond a full-featured login. Set up an SSH trust by copying the local user's public key (usually ~/.ssh/id_rsa.pub) to the authorized_keys file (~/.ssh/authorized_keys) for the remote user. This eliminates password prompts, and improves security as SSH keys are harder to bruteforce. You ...



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