commands_cheatsheet.txt

# log out of iscsi targets
iscsiadm -m node -u

# discover iscsi targets exposed by ip
iscsiadm -m discovery -t st -p 172.16.1.1

# log into exposed iscsi targets
iscsiadm -m node -l

#log out of specific iscsi target
iscsiadm -m node -u -T <Complete Target Name>-p <Group IP address>:3260

# deactivate volume group (before disconnecting)
vgchange -an <vg_name>

# scan for available volume groups
vgscan 

# re activate
vgchange -ay <vg_name>

# create vm 
xen-create-image --hostname=HOSTNAME --memory=MEMORYm --vcpus=1 --lvm=VGNAME --dhcp --pygrub --dist=trusty --size=DISK_SIZEg

# mount freenas samba share
mount -t cifs //freenas/freenas /mnt/tmp

# create snapshot logical volume of name $vm-$date
lvcreate -L $VM_SIZE -s -n $VM_NAME-`date "+%m-%d-%Y"` $VM_SOURCE_DISK

# create new volume for copying backup
lvcreate -L $VM_SIZE -n $VM_NAME-`date "+%m-%d-%Y"` $TARGET_VG

# dd, with rate limit of 10MB/s
dd if=/dev/iscsi/win8-vm-backup-07-31-2015 | pv -L 10m | dd of=/dev/backup/win8-backup-07-31-2015

# convert vmware ova to raw (for use with LVM or whatever)
~/bin/ova2free.py -f raw graylog.ova

# expand lvm volume
lvextend -L +10G iscsi/librenms

# switch to multibus (from round robin, say) multipathing
multipath -r multibus
/etc/init.d/multipath-tools restart

# take path offline
echo offline > /sys/block/$DEVICE/device/state # sda, for example

# remove device from scsi 
echo 1 > /sys/block/$DEVICE/device/delete # sda, for example

# install on kvm with virt-install
virt-install --name vyos --ram 512 --disk /dev/muhvirtuals/vyos --cdrom /home/mech/vyos-1.1.7-amd64.iso

# ssl instructions for ubnt
cat cert2.pem > server.pem
cat privkey2.pem >> server.pem
cp server.pem /etc/lighttpd/server.pem
kill -SIGTERM $(cat /var/run/lighttpd.pid)
/usr/sbin/lighttpd -f /etc/lighttpd/lighttpd.conf