On 6/5/07, praveen kumar <[EMAIL PROTECTED]> wrote: > > 1) Importance of "nice" command in multiprocessor server/ environment?
nice allows you to change the priority of a process. You might want some processes to finish earlier than others. Thats when you renice that process to a value thats better than the nice value of the other processes. Nice values range from -20 to 19, where -20 has the highest priority and 19 the lowest. > 2) how to find all the services running on particular port? ( In solaris they > say using "pfiles") but in Linux? pfiles on Solaris shows you the number of open files for each process. Its equivalent on Linux is the lsof command. > 3) how to configure new HDD when there is crash in old HDD ( i.e how to > configure such that new HDD should me replica of old HDD). You can't create a replica if the hard disk has crashed. For that, you need to use RAID. RAID will automatically rebuild your new hard disk after you issue the raidhotadd command. raidhotadd /dev/mdX /dev/sdX If you don't have raid configured, you can add a new disk as follows. 1. Remove the crashed disk and insert the new disk into the bay. 2. mke2fs -j /dev/sdaX 3. use fdisk to partition the new disk. You should be having the partition table backup, you can atleast replicate the partitioning scheme. 4. Update fstab and transfer the data from your backups to the new disk. Regards, NMK.
