Hi Yaovi, In the future, please post your questions to the list and not directly to me, that way you might get answers from others as well. On Thu, Jul 2, 2009 at 10:52, Yaovi Atohoun<yaovito at yahoo.fr> wrote: > I have re-installed CENTOS but I have created a /tmp. Now I have /tmp and > tmps > > df -h > Filesystem Size Used Avail Use% Mounted on > /dev/mapper/VolGroup00-LogVol00 > 21G 381M 19G 2% / > /dev/cciss/c0d0p7 487M 11M 451M 3% /tmp > /dev/mapper/VolGroup00-LogVol02 > 5.0G 3.7G 1.1G 78% /usr > /dev/mapper/VolGroup00-LogVol01 > 5.0G 139M 4.7G 3% /home > /dev/mapper/VolGroup00-LogVol03 > 100G 258M 94G 1% /var > /dev/cciss/c0d0p1 99M 12M 83M 13% /boot > tmpfs 505M 0 505M 0% /dev/shm > > Do you think that my partition is OK and I can continue? It really depends on what you are trying to do. You did not use LVM for /tmp and fixed it to ~500MB, but I can't tell you if that is going to be enough for you or not, only you can tell that based on the applications you are planning to run on this machine. If you are not sure, I would at least suggest that you also create /tmp on LVM, that way you can grow it if you really have the need for more. Yes, it is OK to have /tmp and a tmpfs for /dev/shm, they are different from each other and each of them needed for different purposes. Personally, I think you should only create so many partitions for your system if you really know what you are doing. While there are advantages to having separate partitions (different I/O requirements for particular applications, limit damage caused by an application filling up the disk, in which case the root filesystem might not be affected) it brings more complexity and more management requirements. While LVM alleviates some of the problem, it does create its own as well. If you are not sure of what you are trying to accomplish and cannot come up with specific requirements of what you need, I would recommend you to create only a /boot partition (physical partition) and a / partition on LVM and that's all. It will probably not be the ideal setup, but good enough for most cases, and it will be the one that will require the least management efforts. HTH, Filipe