scsi

package
v3.0.0-rc21 Latest Latest
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 Go to latest Published: Jul 1, 2026 License: Apache-2.0 Imports: 24 Imported by: 0

Documentation

Index

Constants

View Source 
const (
	MpathPersistCapability = "node.x.scsi.mpathpersist"
	SGPersistCapability    = "node.x.scsi.sg_persist"
)

Variables

View Source 
var (
	DefaultPersistentReservationType = "5" // Write-Exclusive Registrants-Only
	ErrNotSupported                  = errors.New("the SCSI PR is not supported on this node: no usable mpathpersist or sg_persist")
)

Functions

func FormatPRKey 

func FormatPRKey(s string) string

FormatPRKey formats a string key by stripping a leading "0x", truncating it to 16 characters if necessary, and padding it with leading zeroes. The formatted key is returned with a "0x" prefix. It is used to format the reservation or registration key read from device and the configured node scsi key. 

"0xa"                   -> "0x000000000000000a"
"0xab"                  -> "0x00000000000000ab"
"0x1234567890123456789" -> "0x1234567890123456"
"0x1234567890123456"    -> "0x1234567890123456"

func ListHostDirs 

func ListHostDirs() ([]string, error)

func LockedScanAll 

func LockedScanAll(timeout time.Duration) error

func ScanAll 

func ScanAll() error

func ScanAllBusTargetLun 

func ScanAllBusTargetLun(b, t, l string) error

func ScanHostBusTargetLun 

func ScanHostBusTargetLun(h, b, t, l string) error

func ScanHostDirBusTargetLun 

func ScanHostDirBusTargetLun(h, b, t, l string) error

func ScanSCSIHosts 

func ScanSCSIHosts(hba, target, lun string) error

ScanSCSIHosts scans SCSI hosts for new devices hba and target are port names in the SCSI transport (e.g., WWN or iSCSI names) If hba and target are empty, all hosts will be scanned If only hba is provided, all targets on that host(s) will be scanned If hba and target are provided, specific target will be scanned on each host lun specifies the logical unit number to scan

func StripPRKey 

func StripPRKey(s string) string

Types

type MpathPersistDriver 

type MpathPersistDriver struct {
	Log *plog.Logger
}

func (MpathPersistDriver) Clear 

func (t MpathPersistDriver) Clear(dev device.T, key string) error

func (MpathPersistDriver) Preempt 

func (t MpathPersistDriver) Preempt(dev device.T, oldKey, newKey string) error

func (MpathPersistDriver) PreemptAbort 

func (t MpathPersistDriver) PreemptAbort(dev device.T, oldKey, newKey string) error

func (MpathPersistDriver) ReadRegistrations 

func (t MpathPersistDriver) ReadRegistrations(dev device.T) ([]string, error)

func (MpathPersistDriver) ReadReservation 

func (t MpathPersistDriver) ReadReservation(dev device.T) (string, error)

func (MpathPersistDriver) Register 

func (t MpathPersistDriver) Register(dev device.T, key string) error

func (MpathPersistDriver) Release 

func (t MpathPersistDriver) Release(dev device.T, key string) error

func (MpathPersistDriver) Reserve 

func (t MpathPersistDriver) Reserve(dev device.T, key string) error

func (MpathPersistDriver) Unregister 

func (t MpathPersistDriver) Unregister(dev device.T, key string) error

type PersistentReservationDriver 

type PersistentReservationDriver interface {
	ReadRegistrations(dev device.T) ([]string, error)
	Register(dev device.T, key string) error
	Unregister(dev device.T, key string) error
	ReadReservation(dev device.T) (string, error)
	Reserve(dev device.T, key string) error
	Release(dev device.T, key string) error
	Clear(dev device.T, key string) error
	Preempt(dev device.T, oldKey, newKey string) error
	PreemptAbort(dev device.T, oldKey, newKey string) error
}

type PersistentReservationHandle 

type PersistentReservationHandle struct {
	Key            string
	Devices        device.L
	NoPreemptAbort bool
	Force          bool
	Log            *plog.Logger
	StatusLogger   statusLogger

	CurrentStatus    PersistentReservationStatus
	CoresourceStatus status.T
	// contains filtered or unexported fields
}

func (*PersistentReservationHandle) DeviceExpectedRegistrationCount 

func (t *PersistentReservationHandle) DeviceExpectedRegistrationCount(dev device.T) (int, error)

func (*PersistentReservationHandle) DeviceStatus 

func (t *PersistentReservationHandle) DeviceStatus(dev device.T) status.T

func (*PersistentReservationHandle) Start 

func (t *PersistentReservationHandle) Start() error

func (*PersistentReservationHandle) Status 

func (t *PersistentReservationHandle) Status() status.T

func (*PersistentReservationHandle) Stop 

func (t *PersistentReservationHandle) Stop() error

type PersistentReservationStatus 

type PersistentReservationStatus struct {
	ReservedBy *string
}

type SGPersistDriver 

type SGPersistDriver struct {
	Log *plog.Logger
}

func (SGPersistDriver) Clear 

func (t SGPersistDriver) Clear(dev device.T, key string) error

func (SGPersistDriver) Preempt 

func (t SGPersistDriver) Preempt(dev device.T, oldKey, newKey string) error

func (SGPersistDriver) PreemptAbort 

func (t SGPersistDriver) PreemptAbort(dev device.T, oldKey, newKey string) error

func (SGPersistDriver) ReadRegistrations 

func (t SGPersistDriver) ReadRegistrations(dev device.T) ([]string, error)

ReadRegistrations read the reservation from any operating path

func (SGPersistDriver) ReadReservation 

func (t SGPersistDriver) ReadReservation(dev device.T) (string, error)

func (SGPersistDriver) Register 

func (t SGPersistDriver) Register(dev device.T, key string) error

func (SGPersistDriver) Release 

func (t SGPersistDriver) Release(dev device.T, key string) error

func (SGPersistDriver) Reserve 

func (t SGPersistDriver) Reserve(dev device.T, key string) error

func (SGPersistDriver) Unregister 

func (t SGPersistDriver) Unregister(dev device.T, key string) error

Source Files

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