So let me start out by saying… This isn’t so much of a problem with ZFS, as it is just a problem with the tools available in Solaris (not to mention whatever device actually screwed up the timestamp in the first place). But so here is the story. We have…
Linux-KVM Management: Live Migration Without Shared Storage
Everyday I learn something new about Linux-KVM, this is why I love this platform. Today we are going to talk about Live Migration. The kicker? Shared storage not required. Now please keep in mind that just because shared storage is not required, doesn’t mean there is not a benefit to…
Adventures in ZFS: Faulted Cache Devices
We recently had an issue with Crucial M4 Solid State Disks when using them with ZFS on Solaris 11 Express (snv_151a). Basically the disks were showing a whole bunch of write errors and had been “FAULTED” by ZFS. Now to make this problem even worse when we tried to zfs…
Bash: Using pv to Display Progress of dd
One of the biggest weaknesses of dd is that it has no way to display progress on its actions. You can send a signal to the process which will pause, display statistics, and resume the process however this takes up alot of your terminal screen if you are doing any…
ZFS: Delegate ZFS Permissions
It is widely accepted as best practice to not use your root account in general. In Solaris they like some Linux distributions have gone so far as to prevent root access to SSH. Now we could go the route of permitting route logins to SSH however this would not be…