Fajar Ari Wibowo mb00g

Saat kita upgrade kernel ada kalanya kita mengalami masalah misalnya kernel panic. Untuk downgrade ke kernel versi sebelumnya dilakukan dengan mengedit bootloader (dalam hal ini GRUB).

Langkahnya adalah. Login ke hypervisor. Lalu cari untuk UUID dari VM yang akan di edit bootloader-nya.

xe vm-list
uuid ( RO)           : 3c47cf57-fc94-cbba-2f26-83b0a0d8a5d0
     name-label ( RW): Parahyangan
    power-state ( RO): halted
uuid ( RO)           : 5de47641-0740-4736-8028-0041d1bcd9b4
     name-label ( RW): Control domain on host: muria.nix.jc

Enable quota di container virtuozzo

rm -f /aquota.user 2>/dev/null
rm -f /aquota.group 2>/dev/null

dilanjutkan

for x in `find /proc/vz/vzaquota/ | tail -2 `; do ln -s $x / ; done

Agar semua domain yang menggunakan NS / nameserver ini diarahhkan A recordnya ke satu IP saja

@ IN SOA ns1.domain.com. hostmaster.domain.com. ( 1 3h 1h 1w 1d )
  IN NS 10.10.10.10
* IN A 10.10.10.10

Mesin SAN yang menggunakan Nexenta tiba-tiba off karena mati listrik dari PLN-nya (UPS fail), dan posisi DDR Drive (logzil) langsung off sebelum dia write data ke disk.

Cek zpool dari SSH

nmc@alengka:/$ zpool status
  pool: alengka
 state: FAULTED
status: An intent log record could not be read.
        Waiting for adminstrator intervention to fix the faulted pool.

Edit vhost.conf

Sisisapkan config berikut

location /iso/ {
  alias   /data/web/repo.jcamp.net/iso/;
  index  index.html index.htm index.php;
  autoindex on;
}

Menambahkan interface dan IP di SmartOS, edit file /usbkey/config

storage_nic=0:25:90:3b:8b:3 ## Isi dengan MAC Address dari igb1
storage0_ip=10.20.11.125
storage0_netmask=255.255.255.0
storage0_network=...

	#!/bin/sh

	# Shell script to install your public key on a remote machine
	# Takes the remote machine name as an argument.
	# Obviously, the remote machine must accept password authentication,
	# or one of the other keys in your ssh-agent, for this to work.

	ID_FILE="${HOME}/.ssh/id_rsa.pub"

	if [ "-i" = "$1" ]; then

	#!/bin/bash
	read -p "Template: " TEMPLATE
	read -p "Name Prefix: " NAME
	read -p "Quantity: " QUANTITY
	COUNT=1
	while [ $COUNT -le $QUANTITY ] ; do
	xe vm-clone vm="$TEMPLATE" \
	new-name-label="$NAME$COUNT";
	let COUNT=COUNT+1
	done

	#!/bin/bash
	read -p "Name Prefix: " NAME
	read -p "Quantity: " QUANTITY
	COUNT=1
	while [ $COUNT -le $QUANTITY ] ; do
	xe vm-start vm="$NAME$COUNT";
	let COUNT=COUNT+1
	done
	exit 0

	#!/bin/bash
	read -p "Name Prefix: " NAME
	read -p "Quantity: " QUANTITY
	COUNT=1
	while [ $COUNT -le $QUANTITY ] ; do
	xe vm-uninstall vm="$NAME$COUNT" force=true;
	let COUNT=COUNT+1
	done
	exit 0