Here is the output for zfs-stats on knew. This represents a 24 hour period. This server receives backups (via bacula-sd) and runs regression testing in various jails for the Bacula project. As a little side venture, it also loads up each of my backed-up databases.
zfs-stats for knew Read More »
NOTE: when upgrading a zpool, it may be necessary to also upgrade the bootcode for that disk (or disks). Be aware of this before proceeding. I know I have missed this step more at least once. Earlier today I was adding a new pool to the system. After creating the pool, the status showed this: Let’s upgrade that pool now Upgrading the pool Upgrading the pool is easy: Oh… Now what? I wasn’t
zpool upgrade calls for gpart bootcode -b /boot/pmbr -p /boot/gptzfsboot Read More »
I haven’t tested this yet, but I’ve installed the hardware. The real test will come after a reboot and actual use of the new drives. NOTE: Although this claims to be creating a new ZIL (SLOG) do not believe it. In fact, stop reading right here. There is nothing of use below. What will they be used for? These drives are intended for ZIL (the ZFS Intent Log). This can speed up writes.
Adding two new drives (SSD) to an existing ZFS system Read More »
It seems that when I decided to send a filesystem from one server to another, I neglected to establish sufficient space existed. This morning, before I headed to BSDCan, I found that my server was very sluggish and slow to respond. Nagios was flagging all kinds of errors, some of which I’d never seen before. Looking at the system in question, I found the system 95% full: $ zpool list NAME SIZE ALLOC
zfs receive stalled, filesystem 95% full Read More »
I have two ZFS servers which have several TB of space. One of the great ZFS features is the ability to send one filesystem to another filesystem, on the current or another server. I will do this over ssh. One of my servers has a lot of spare space, so I figure I will duplicate my backups there. The source This server contains a Bacula Storage Daemon with access to about 27TB, with
zfs send on FreeBSD over ssh using mbuffer Read More »
Today I will be installing ezjail 3.3 on a FreeBSD 9.2 system. I will give an overview of the installation and go straight to the configuration of the first jail. As I type this, I’m looking back at my old notes from 2008. Installation I installed ezjail with this command: pkg install ezjail Configuration Enable ezjail by adding this command to /etc/rc.conf: ezjail_enable=”YES” This system is configured with ZFS and each jail will
Installing ezjail 3.3 on FreeBSD 9.2 using ZFS Read More »
How much space is used by my ZFS snapshots? That’s the question I asked. I found the answer here. Hope that helps.
How much space is used by my ZFS snapshots Read More »
This post has it all: backups deduplication snapshots ZFS Bacula ezjail Backups are essential for proper sanity, or at least, a reasonable facsimile. I strongly believe that doing backups right is the only way to backup. Go big or go home. I’ve been converting all my servers to ZFS. I like ZFS for many reasons, and I’m going to list two: data integrity snapshots In this case, instead of backing up the entire
Script for listing the latest ZFS snapshot – starting place for Bacula backups Read More »
This is zuul, the server I’ve been setting up to be a new jail host. I like to store away this type of documentation, in case I need it later. The partitions: The ZFS file systems: The ada0 drive details: And ada1 drive details: And finally, dmesg:
I have an exciting project ahead of me. I will soon be configuring a new server. It will be ZFSROOT running a pair of mirrored 500GB disks. I plan to use a configuration tool for management of this server. The final choice of tools is yet to be decided. The services provided by this server will be primarily based on jails. The use of a configuration tool will simplify future redeployments. I’m doing
Exciting project ahead Read More »