On Thu, 1 Jul 2004 20:37, Jogi Hofmüller <[EMAIL PROTECTED]> wrote: > * Gustavo Polillo <[EMAIL PROTECTED]> [2004-06-30 17:22]: > > Is it possible to make lvm with raid ?? Is there anyone here that make > > it? thanks. > > We just recently started tests with adaptecs zcr cards (2010S) and > aic-7902 controlors. Our solution is to have one disk to hold the OS and > three more that form a raid5. On top of the raid5 (which looks like one
Why not just use a four disk RAID-5 for everything? If you have a decent amount of RAM then the OS partition(s) will usually have almost no access apart from writes to /var/log, and if you use the "-" option in the syslog configuration that shouldn't be a significant load either. Generally the more disks in a RAID-5 the better the performance that you can get, so having a four-disk RAID-5 is likely to give better performance for no cost (run "iostat -x 10" to verify this). Having the OS on one disk means that a single disk failure will kill the machine. While you may have good backups it's always more convenient if you can leave the machine running with a dead disk instead of having to do an emergency hardware replacement job. -- http://www.coker.com.au/selinux/ My NSA Security Enhanced Linux packages http://www.coker.com.au/bonnie++/ Bonnie++ hard drive benchmark http://www.coker.com.au/postal/ Postal SMTP/POP benchmark http://www.coker.com.au/~russell/ My home page
