Modern Linux LVM offers great abilities to maintain snapshots of existing logical volumes. Unlike NetApp “Write Anywhere File Layout” (WAFL), Linux LVM uses “Copy-on-Write” (COW) to allow snapshots. The process, in general, can be described in this pdf document. I have issues several small tests, just to get real-life estimations of what is the actual…
Per the last post in this thread, I have created a startup script to an Oracle setup I’ve had. The script is rather simple – you “su –” to the Oracle user, and you just start the DB. Same goes for shutting it down. I have tested it and it worked well. Due to the…
When adding a certain shell to an HP-UX system, for example, /usr/bin/tcsh, each user set to use this shell will not be able to FTP to the machine, until there is entry in /etc/shells. The trick is that even if the file doesn’t exist, you have to create it. By default, HP-UX allows only /sbin/sh…
First and foremost – the Ontap simulator, a great tool which surely can assist in learning NetApp interface and utilization, lacks in performance. It has some built-in limitations – No FCP, no disks (virtual disks) larger than 1GB (per my trial-and-error. I might find out I was wrong somehow, and put in on this website),…
I’ve had the pleasure of playing with Ontap Simulator. This is a marvelous tool, designed to simulate a real NetApp appliance, in an easy and affordable manner. I’ve noticed a link to this simulator, in Oracle’s web site. I’m posting it here so you’ll get to know what I’m talking about. I’m playing with it…
