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Lost a xen Dom0 the other day temporarily, and when it came back up one of the DomU’s was having issues booting because the label had mysteriously disappeared from the volume. There used to be the possibility to add ‘single’ or ‘single init=/bin/bash’ to the extras option in the DomU’s configuration file, however this doesn’t [...]

So SVM isn’t something I seem to have to fiddle with much as it just works ™ once it’s all setup, but what if you have a disk fail, and this is an older system using SVM to mirror root/boot devices? Well it’s pretty simple and can all be done online… First you need to [...]

I had to configure an iSCSI target for testing purposes, the steps I followed are below. This assumes that you have the tgtadm software installed, and that you are making use of LVM. 1. create the backing volume in lvm we have one volume group, called vg01, if you want to see what volume groups [...]