Aysad Kozanoglu AysadKozanoglu

HP Smart Storage Admin CLI (`ssacli`) installation and usage on Proxmox PVE (6.x)

Why use HP Smart Storage Admin CLI?

You can use ssacli (smart storage administrator command line interface) tool to manage any of supported HP Smart Array Controllers in your Proxmox host without need to reboot your server to access Smart Storage Administrator in BIOS. That means no host downtime when managing your storage.

CLI is not as convenient as GUI interface provided by BIOS or desktop utilities, but still allows you to fully manage your controller, physical disks and logical drives on the fly with no Proxmox host downtime.

ssacli replaces older hpssacli, but shares the same syntax and adds support for newer servers and controllers.

Installation

download

wget https://docs.broadcom.com/docs-and-downloads/raid-controllers/raid-controllers-common-files/8-07-14_MegaCLI.zip

unzip

unzip 8-07-14_MegaCLI.zip

How to mount a qcow2 disk image

This is a quick guide to mounting a qcow2 disk images on your host server. This is useful to reset passwords, edit files, or recover something without the virtual machine running.

Step 1 - Enable NBD on the Host

modprobe nbd max_part=8

Linux simple performance tweaks

Change the I/O Scheduler

Open $ vim /etc/default/grub then add elevator=noop next to GRUB_CMDLINE_LINUX_DEFAULT. Run $ update-grub and $ cat /sys/block/sda/queue/scheduler to be sure that noop is being used:

$ vim /etc/default/grub
$ update-grub
$ cat /sys/block/sda/queue/scheduler

[noop] deadline cfq

Using auto backup with Vim

Not using versioning on your configuration files and editing them with Vim? Use Vim’s backup option to automatically keep a copy of past versions:

To put in your ~/.vimrc:

"Turn on backup option
set backup

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	/* AES implementation in PHP */
	/* (c) Chris Veness 2005-2011 www.movable-type.co.uk/scripts */
	/* Right of free use is granted for all commercial or non-commercial use providing this */
	/* copyright notice is retainded. No warranty of any form is offered. */
	/* - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - */

	class Aes {

	#
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	# include cors_support;
	#
	# As of Nginx 1.7.5, add_header supports an "always" parameter which

	client
	dev tun
	proto tcp
	remote 192.168.1.1 1194
	resolv-retry infinite
	nobind
	persist-key
	persist-tun
	ca [inline]
	cert [inline]

	#!/bin/bash
	# for Debian Jessie



	configfile=/etc/keepalived/keepalived.conf

	content=$(egrep '(vrrp_instance\|interface\|virtual_ipaddress)' -A1 $configfile \| egrep -v "(\-\-\|track_\|virtual_)" \| grep -A6 vrrp_);

	#echo "$content";

	#!/bin/sh
	#
	# About
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	# This script sends simple system-metrics to a remote graphite server.
	#
	#
	# Metrics
	# -------
	# The metrics currently include the obvious things such as: