Update to 0.2. Links remain the same. At the moment I cannot host many versions (it’s mostly uncomfortable), but this might change in the future. I have created a GUI cables installer and configurator for L2TP on Linux. I have noticed that there is no GUI solution, so, after this has been brought up, I…
To burn Dual-Layer (or Double-Layer, of you stick to the official name for DVD+R) medias, I use growisofs. The syntax is as follow: growisofs -dvd-compat -use-the-force-luke=break:1913760 -Z /dev/scd0=file.iso Change the break blocks to match your own values, and replace the file.iso with the actual name of your ISO file. If you do not set layer…
Linux LVM is a wonderful thing. It is scalable, flexible, and truly, almost enterprise-class in every details. It lacks, of course, at IO performance for LVM snapshots, but this can be worked-around in several creative ways (if I haven’t shown here before, I will sometime). What it can’t do is dealing with a mixture of…
Using udev to set persistent raw devices for iscsi in Oracle RAC
The simple scripts in /etc/xen/scripts which manage networking are fine for most usages, however, when your server is using bonding together with VLAN tagging (802.11q) you should consider an alternative. A PDF document written by Mark Nielsen, GPS Senior Consultant, Red Hat, Inc (I lost the original link, sorry) named “BOND/VLAN/Xen Network Configuration” as a…
There is a major confusion among DBAs regarding how to setup raw devices for Oracle RAC or Oracle Clusterware. This confusion is caused by the turn RedHat took in how to define raw devices. Raw devices are actually a manifestation of character devices pointing to block devices. Character devices are non-buffered, so they act as…
