Les Mikesell wrote: > Rudi Ahlers wrote: >> David Mackintosh wrote: >>> On Mon, Jun 30, 2008 at 02:08:33PM -0500, Les Mikesell wrote: >>> >>>> Have you updated to Centos 5.2 yet? And if so, did it improve NFS >>>> performance? >>>> >>> >>> Sorry, these computers are in production now so I can't fiddle with >>> them. >>> >>> Besides, this would be a "long" upgrade -- they are both CentOS 4.x >>> systems. >>> >>> _______________________________________________ >>> >> This raises an interesting question. What do you do in this kind of >> scenario? How do you upgrade a NAS / SAN with say 5 / 10 TB worth of >> data? > > I haven't done anything that big, but I normally put the OS on a small > mirrored pair of swappable drives so an upgrade consists of swapping > those drives with a new set pre-installed in a spare chassis. That > way you are only down for the time it takes to reboot and if anything > goes wrong you can put the old set back. In any case you wouldn't be > doing anything to the data partitions in an upgrade. > ok, so in your setup the OS is totally separate from the data itself? So, I guess I need to rethink my setup. Since I have a 2U chassis, which can only take 6 drives, I guess I should maybe look into running the OS from a USB memory stick or something. -- Kind Regards Rudi Ahlers CEO, SoftDux Web: http://www.SoftDux.com Check out my technical blog, http://blog.softdux.com for Linux or other technical stuff, or visit http://www.WebHostingTalk.co.za for Web Hosting stuff