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Dell EMC PowerEdge RAID Controller CLI Reference Guide

Feri Setyawan - November 2, 2021

Disk Utility

Physical Volume is using an old PV header

Feri Setyawan - September 29, 2021

Disk Utility

MegaCLI CheatSheet (2)

Feri Setyawan - August 11, 2021

Disk Utility

MegaCLI CheatSheet

Feri Setyawan - May 19, 2021

Disk Utility

Managing Journal Systemd Ubuntu

Feri Setyawan - October 9, 2020

Disk Utility

How to fix Ceph error states “oldest is osd_failure(failed timeout osd.xx)

Feri Setyawan - July 9, 2020 0

Hi, If your Ceph cluster encounters a slow/blocked operation it will log it and set the cluster health into...

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Disk Utility

How to enable write cache for 3ware Raid controller

Feri Setyawan - March 24, 2020 0

You can check the current cache status and then enable or disable it using the 3ware command line utility tw_cli. First lets see how...

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Disk Utility

Converting between image formats

Feri Setyawan - March 24, 2020 0

qemu-img convert: raw, qcow2, qed, vdi, vmdk, vhd The qemu-img convert command can do conversion between multiple formats, including qcow2, qed, raw, vdi, vhd, and vmdk.

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Disk Utility

Configure Disk Quota on Ubuntu Server

Feri Setyawan - March 24, 2020 0

Scenario: Disk quotas can be used to limit the amount of disk space or the number of files allocated...

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Disk Utility

Cannot access disk on zfs, Don’t Panic!!

Feri Setyawan - March 24, 2020 0

I was having an issue with one of my Proxmox 5.0 version. When I was trying to start my VM it states...

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Please install all available updates for your release before upgrading

How to Feri Setyawan - March 4, 2023 0

The Problem: While upgrading the Ubuntu OS version, I faced the following issue with the do-release-upgrade command. Even all the current...

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How To Import QCOW2 Image Into Proxmox

How to Feri Setyawan - September 27, 2022 0

In this guide, we will see how to import QCOW2 into Proxmox hypervisor and how to create a virtual machine using the QCOW2 image...

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Remove frozen emails from mail queue – Exim

Email admin - August 24, 2022 0

Emails can build up for a variety of different reasons but mainly results from emails which were undelivered. When...

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Safe Reboot Of Linux Using Magic SysRq Key

How to Feri Setyawan - January 8, 2022 0

If you are working on kernel development, or device drivers, or running a code that could cause a kernel panic, the SysRq...

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