EMail Posts / Feed / Linux Admin / Linux Disk Management
by Ramdev · Published October 7, 2015 · Last modified October 10, 2015
This tool, derived from util-linux’ partx, reads partition tables on specified device and create device maps over partitions segments detected. It is called from hotplug upon device maps creation and deletion. kpartx [-a | -d | -l] [-v] wholedisk Usage Example To mount all the partitions...
EMail Posts / Feed / Linux Admin / Linux Disk Management
by Ramdev · Published October 6, 2015 · Last modified July 30, 2016
Introduction RAID devices are virtual devices created from two or more real block devices. This allows multiple devices (typically disk drives or partitions thereof) to be combined into a single device to hold (for example) a single filesystem. Some RAID levels include redundancy and so can...
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by Ramdev · Published September 1, 2015 · Last modified July 23, 2016
Booting Tasks Read – Unexpected Server Reboots of RHEL servers on HP Read – Linux Admin Reference – RedHat Linux Grub Loader Storage Responsibilities Read – Understand Device Mapper and DM-Multipath Read – Identifying Disk Errors in Linux Read – Identify if linux was installed on...
Linux Admin / Linux Disk Management / Linux LVM / Storage Configs for Unixadmin / Storage Migrations / Unix Intermediate
by Ramdev · Published June 16, 2014 · Last modified August 6, 2016
Sudo is different from the su command and is more flexible and more secure. The sudo command allows users to do tasks on a Red Hat Enterprise Linux system as another user. One significant advantage is that it can log usage. By default the program saves...
Linux Admin / Linux Disk Management / Linux LVM / Unix Intermediate
by Ramdev · Published May 26, 2014 · Last modified July 23, 2016
In Enterprise Linux Environment, External storage often permits devices to be accessed by multiple physical paths. This improves redundancy and availability. SAN environment Red Hat Enterprise Linux provides the device-mapper-multipath component to manage multipath capable storage and to present multipath devices to applications running on the...
Linux Admin / Linux Disk Management / Linux LVM / Redhat Enterprise Linux 6 / Rhel6 Storage / Storage Configs for Unixadmin / Storage Migrations / Unix Intermediate
by Ramdev · Published May 22, 2014 · Last modified July 23, 2016
In Enterprise Linux Environment, External storage often permits devices to be accessed by multiple physical paths. This improves redundancy and availability. SAN environment Red Hat Enterprise Linux provides the device-mapper-multipath component to manage multipath capable storage and to present multipath devices to applications running on the...
Linux Admin / Linux Booting / Linux Disk Management / Linux Troubleshooting
by Ramdev · Published April 3, 2014 · Last modified July 23, 2016
This post will help you resolve the Linux file system issue that causing below errors.
Linux Admin / Linux Disk Management / Linux LVM / Redhat Enterprise Linux 6 / Rhel6 Storage / Unix Intermediate
by Ramdev · Published April 19, 2013 · Last modified August 6, 2016
This is second post from the ISCSI administration series ( you can refer the first post here RHEL 6 – ISCSI Administration Series – Configuring ISCSI Server and Client ) . In this post, I will be showing you an hands-on exercise to expand a ISCSI LUN which is already...
Linux Admin / Linux Disk Management / Redhat Enterprise Linux 6 / Rhel6 Storage
by Ramdev · Published April 15, 2013 · Last modified July 23, 2016
ISCSI Server Configuration on RHEL 6 Overall Steps : Install the RPM required for ISCSI Target Administration Enable the ISCSI Target Services Configure the ISCSI target to share the storage Attach Luns to the ISCSI Target Share the ISCSI Target to specific Client Machines Add...
Linux Admin / Linux Disk Management / Linux LVM
by Ramdev · Published February 5, 2012 · Last modified July 2, 2015
In this post I am explaining about the procedure to add 20G to /applocal volume configured in Virtual Linux Machine. A new Disk sdb is partitioned as sdb1 and it was allocated to LVM from outside, and after the reboot the disk is visible to Linux...
