zpool

Documentation

Index

• Constants
• type Topology
  • func Dump() (Topology, error)
• type Vdev
• type VdevTree

Constants

const (
	PoolOperator = "zpool"
)

PoolOperator is the name of the tool that makes pool-related operations.

Types

type Topology

type Topology struct {
	// Number of top-level children in topology (doesnt include spare/l2cache)
	ChildrenCount int `json:"vdev_children,omitempty"`

	// Root of vdev topology
	VdevTree VdevTree `json:"vdev_tree,omitempty"`
}

Topology contains the topology strucure of disks used in backend

func Dump

func Dump() (Topology, error)

Dump runs 'zpool dump' command and unmarshal the output in above schema

type Vdev

type Vdev struct {
	// root for Root vdev, Raid type in case of non-level 0 vdev,
	// and file/disk in case of level-0 vdev
	VdevType string `json:"type,omitempty"`

	// Path of the disk or sparse file
	Path string `json:"path,omitempty"`

	// 0 means not write-cache device, 1 means write-cache device
	IsLog int `json:"is_log,omitempty"`

	// 0 means not spare device, 1 means spare device
	IsSpare int `json:"is_spare,omitempty"`

	// 0 means partitioned disk, 1 means whole disk
	IsWholeDisk int `json:"whole_disk,omitempty"`

	// child vdevs of the logical disk or null for physical disk/sparse
	Children []Vdev `json:"children,omitempty"`
}

Vdev relates to a logical or physical disk in backend

type VdevTree

type VdevTree struct {
	// root for Root vdev, Raid type in case of non-level 0 vdev,
	// and file/disk in case of level-0 vdev
	VdevType string `json:"type,omitempty"`

	// top-level vdev topology
	Topvdev []Vdev `json:"children,omitempty"`

	// list of read-cache devices
	Readcache []Vdev `json:"l2cache,omitempty"`

	// list of spare devices
	Spares []Vdev `json:"spares,omitempty"`
}

VdevTree contains the tree strucure of disks used in backend