On Mon, Mar 15, 2010 at 07:05:17PM +0300, Majed B. wrote: > 100-200 MB is good enough for the /boot filesystem. > > How much swap to use depends on how much RAM you have and how much RAM > the applications you use demand. > If you have 4GB RAM or more, and most of your usage is about browsing > the Internet, documents, watching videos, ..etc., then 2GB swap is > more than enough even though I think you'll never use it. > In case you ever need more than that, you could also create a > swap-file -- whenever in need, create the file with the size you need > on your array, activate the file as swap and that's it! When done with > it, deactivated and delete the file to reclaim the capacity it once > occupied. > > Personally, I keep my /home on its own partition. This guarantees that > whatever system upgrades or distribution installs occur, /home won't > be affected nor touched, and can be seen by multiple Linux distros if > you're into multi-booting. > > I have a workstation with 4x 320GB disks with my root filesystem on it > as RAID5. I have to say that it wasn't a good judgment going that way. > One time one of the disks failed and the system refused to boot in > degraded mode, so I had to boot from a CD, resync the array and then > boot normally. > That event got me thinking: Why don't I put / on its own disk and > /home be on the RAID5 array. I could copy / to the array as a backup, > should the OS disk crash; put a new disk, make it bootable, install > grub on it, then using a LiveCD I could boot and access my RAID5 array > and copy the OS files back. > > It's OK to have all disks running on the array without a spare. Just > make sure you configure smartd and have it run tests on a daily basis > (short tests) and a weekly basis (long tests) and to have it email you > if problems occur. > > For RAID performance enhancements, the page seem to have been removed > but a cached version of it is available: > http://74.125.77.132/search?q=cache:5f7lyJQGL78J:www.linuxfoundation.org/collaborate/workgroups/linux-raid/performance+http://linux-raid.osdl.org/index.php/Performance&cd=1&hl=en&ct=clnk Our wiki moved ... see http://raid.wiki.kernel.org/index.php/Performance > > For RAID benchmarks: > https://turing.phas.ubc.ca/mediawiki/index.php/RAID_benchmarks does not involve Linux MD RAID. Linux MD RAID is generally faster then HW RAID. Best regards keld -- To unsubscribe from this list: send the line "unsubscribe linux-raid" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
