Tag Archives: ZFS

Using ZFS snapshots to keep MySQL backups

Posted on October 15, 2013 by danmassey99

Whilst at a customer site the other day the question was raised over how they could keep a fair volume of backups of a MySQL database off site, while minimising bandwidth and disk space. So the usual ‘moon on a … Continue reading →

Posted in FreeBSD Administration, MySQL, ZFS | Tagged , , , | Leave a comment

Creating FTP Accounts on ZFS space with quotas

Posted on November 19, 2012 by danmassey99

As part of the Gconnect 30:30 server product, I need to create a 10GB FTP store for each server. Its part of the deal so customers can use it either for backup, if they don’t want the server image backups … Continue reading →

Posted in FreeBSD Administration, ZFS | Tagged , , , | Leave a comment

FreeBSD ZFS Deduplication

Posted on November 11, 2011 by danmassey99

Time to prove or disprove the ZFS dedup capabilities. First its important to understand that as with compression, if we change the settings on the storage block then only new data written to that area will be de-duped or compressed. … Continue reading →

Posted in FreeBSD Administration, ZFS | Tagged , , | Leave a comment

FreeBSD ZFS – Connecting an existing zpool to a new OS

Posted on November 9, 2011 by danmassey99

Imagine that you have your server with an external RAID array running a ZFS file system, or even a separate internal array on the box and the OS array is trashed. Now you have your nice redundant ZFS partition, but … Continue reading →

Posted in FreeBSD Administration, ZFS | Tagged , , , | Leave a comment

ZFS on FreeBSD – Disk Failures

Posted on October 19, 2011 by danmassey99

This morning i’m looking into how ZFS on FreeBSD reacts to disk failure. Using the setup documented in the previous two posts (3 x 2TB HDDs in raidz). First task was to shut down the machine and pull one of … Continue reading →

Posted in FreeBSD Administration | Tagged , , | Leave a comment

More ZFS on FreeBSD

Posted on October 17, 2011 by danmassey99

After yesterday’s success with the ZFS configuration I’m hoping to perform some snapshots and get the compression to be a bit better. I was a bit disappointed with the compression ratio yesterday which was a pitiful 1.15x. I’ll be cheating … Continue reading →

Posted in FreeBSD Administration | Tagged , , , | Leave a comment

ZFS on FreeBSD – Starting out

Posted on October 16, 2011 by danmassey99

ZFS has been pasrt of FreeBSD since version 7.0 so as we’re now on the verge of version 9.0 being released I thought i’d better play catchup and make an effort to find out about ZFS. Firstly ZFS stands for … Continue reading →

Posted in FreeBSD Administration | Tagged , , , , | Leave a comment