lvcreate, pvcreate, vgcreate, mkfs, mount

pvcreate, vgcreate, lvcreate, mkfs, mount

vgcreate, lvcreate, pvcreate, mount, mkfs

mkfs, pvcreate, vgcreate, lvcreate, mount

pvcreate, lvcreate, vgcreate, mkfs, mount

1, 5 and 15 minutes

1, 15 and 30 minutes

1, 15, and 30 seconds

15, 30 and 60 minutes

15, 30 and 60 seconds

Processes waiting for user interaction.

Processes that were already closed and are waiting to be launched again.

Processes that have not been scheduled yet because they haven ' t been fully loaded into RAM or are in swap.

Processes waiting for IO operations to complete.

It uses a library of plugins.

A master server connects to a collectd service on each machine to retrieve the information.

It collects its own information on each server and sends that to a master server.

It makes SNMP queries to the clients being monitored.

pidstat

nfsiostat

sadf

cifsiostat

_santarget

iscsi

waitiscsi

_netdev

rm /dev/sdb3

dd if=/dev/zero of=/dev/sdb3

dd of=/dev/zero if=/dev/sdb3

umount /dev/sdb3

It is included with the Linux kernel source code.

The kernel modules are downloaded on demand as they are used during compilation.

The kernel modules have their own release cycle and can be maintained separately from the Linux kernel source.

It is provided as a separate download alongside the Linux kernel source code of the same version.

modprobe –i dummy

modinfo –n dummy

modpath –v dummy

depmod –n dummy

modshow –p dummy

btrfs subvolume add –n volume /mnt

btrfs create subvolume /mnt volume

btrfs-subvolume create /mnt/volume

btrfs subvolume new volume /mnt

btrfs subvolume create /mnt/volume