df command HowTo - Linux / Unix Q & A from nixCraft

How to automatically mount zfs file system on Linux/Unix/FreeBSD

last updated October 31, 2016 in Debian / Ubuntu, File system, FreeBSD, Ubuntu Linux, UNIX

I have created a zfs file system called data/vm_guests on Ubuntu Linux server. After the server reboot, zpools do not automatically mount at /data/vm_guests. It is failing my KVM guest machines. How can I mount my ZFS (zpool) automatically after the reboot?

Linux Check Disk Space Command To View System Disk Usage

last updated May 2, 2018 in CentOS, Debian / Ubuntu, Linux, RedHat and Friends, Suse

I recently switched from a Windows server to a Linux server operating system and need Linux Check Disk Space Command. I am using Ubuntu LTS 16.04 and CentOS 7.x server. How do I find out disk space utilization information using command line option?

How To See Characteristics of File Systems on Linux or Unix

last updated October 26, 2015 in AIX, CentOS, Debian / Ubuntu, HP-UX Unix, Linux, RedHat and Friends, Solaris-Unix, UNIX

How do I display the characteristics of file systems such as inodes, blocks, block size, file system name, state, lifetime writes, fsck status and more on Linux or Unix-like operating system?

Linux: Find Out How Much Disk Space Left On Hard Drive

last updated June 9, 2013 in BASH Shell, File system, Linux

I am a desktop support professional with experience working in a corporate call center environment. Recently, I started to admin RHEL based IBM Linux server. How do I determine how much disk space left in my Linux server? How do I find out how much disk space I have in Linux for each partition?

Linux WARNING: Duplicate VG name server1 LVM2 Error and Solution

last updated May 5, 2013 in Linux, Storage, Troubleshooting

I recently added SSD to my home server and reloaded the operating system. However, when I try to access my dm-crypt based old disk, I am getting the following error:

Reading all physical volumes. This may take a while... WARNING: Duplicate VG name server01: Existing bc7YA8-eEXt-1aA1-OHTr-zJkA-ucd0-DsbRTc (created here) takes precedence over RIKiar-w3MG-Gzh5-VFWq-bkRT-9IFc-ia8k87 WARNING: Duplicate VG name server01: Existing bc7YA8-eEXt-1aA1-OHTr-zJkA-ucd0-DsbRTc (created here) takes precedence over RIKiar-w3MG-Gzh5-VFWq-bkRT-9IFc-ia8k87 Found volume group "server01" using metadata type lvm2 Found volume group "server01" using metadata type lvm2

The problem is my volume group. I set to to server01 on both old and new hard disk. How can I rename old LVM2? How do I access my old hard disk?

Mount CD-ROM / DVD in HP-UX Unix

last updated May 7, 2012 in UNIX

How do I mount CD or DVD on HP-UX Unix operating systems?

Linux Command: Show Mounted Hard Drives Partition

last updated April 5, 2013 in Linux

How do I list or show all mounted devices in a terminal under Linux operating systems?