Space utilization by .nfs entries under NFS

On linux/unix systems if you delete a file that a currently running process still has open, the file isn’t really deleted or removed . Once the process closes the file, the OS then removes the file handle and free up the disk blocks. This process works slightly other way when the file that is open […]

Continue reading »

Fixing LVM I/O Errors

Situation : Most of us faced errors mentioned below during our system admin activities   , this is mainly related to the removable storage media that we use on unix servers’ Reason of this could be because removing the disk/LUN’s without clean shutdown/unmount or deattaching disks from LV’s  . /dev/sdf: read failed after 0 of 4096 at 0: […]

Continue reading »