On Freitag 17 Oktober 2008, Wolfgang Liebich wrote: > Hi, > > Alan McKinnon schrieb: > > On Wednesday 15 October 2008 15:13:45 Pintér Tibor wrote: > >>> I'm in the process of setting up a new private computer. I've bought > >>> one with two drives b/c I wanted to setup a RAID system - RAID1 for > >>> important partitions, RAID0 for scratch files maybe. > >>> Additionally I would like to use LVM2 --- on my work PC I've grown to > >>> like the flexibility of that. > >>> The Intel DQ35JO motherboard now supports some kind of mobo based RAID. > >>> Is it better to use this HW raid, or to ignore that and use only the > >>> linux kernel's software RAID. > >> > >> thats not hardware raid, it never was, it never will be. > > > > Rule of thumb: > > > > For any machine you buy to use at home, dump the on-board RAID and use > > Linux software raid instead. > > > > Reason: kernel raid works, that on-board crap doesn't > > Other reason: real hardware raid costs many times more than that entire > > computer you bought for home use > > OK - nearly everyone here (and at work, too) told me to forget the > onboard fake raid controller. So this is what I will do :-) > The RAID-Howto as well as the LVM howto are however woefully out of > date. I will try to work with the linux-raid website's info.
the howtos on gentoo-wiki worked well for me. > - Put the root partition on another RAID1 (I thought about putting the > root filesystem into my LVM setup, too -- it is REALLY annoying if the > root partition get's to small), yeah, but if you have 20+ gb root is always big enough ;) AFAIK lvm kills barriers. You use raid for better data security. So using lvm is a bit.. contra productive. > - Build a RAID1 partition for the rest of the system (will be a LVM2 > container) > - Build a last RAID0 partition for scratch data (/tmp, /var/tmp, > /usr/portage, scratch data). I have /tmp and /var/tmp on tmpfs - /tmp is so small it is not worth wasting a partition for it.
