go-libzfs/zpool_vdev.go

144 lines
3.9 KiB
Go

package zfs
// #include <stdlib.h>
// #include <libzfs.h>
// #include "common.h"
// #include "zpool.h"
// #include "zfs.h"
import "C"
import (
"fmt"
"unsafe"
)
// Online try to set dev online
// expand - expand storage
func (pool *Pool) Online(expand bool, devs ...string) (err error) {
cflags := C.int(0)
if expand {
cflags = C.ZFS_ONLINE_EXPAND
}
for _, dev := range devs {
csdev := C.CString(dev)
var newstate VDevState
if newstate = VDevState(C.set_zpool_vdev_online(pool.list, csdev, cflags)); newstate != VDevStateUnknown {
if newstate != VDevStateHealthy {
err = fmt.Errorf(
"Device '%s' onlined, but remains in faulted state",
dev)
}
} else {
err = LastError()
}
C.free(unsafe.Pointer(csdev))
}
return
}
// Offline Take the device/s in offline state
func (pool *Pool) Offline(force bool, devs ...string) (err error) {
return pool.offline(false, force, devs...)
}
// OfflineTemp Take the device/s in offline state temporary,
// upon reboot, the specified physical device reverts to its previous state.
// force - Force the device into a faulted state.
func (pool *Pool) OfflineTemp(force bool, devs ...string) (err error) {
return pool.offline(true, force, devs...)
}
// temp - Upon reboot, the specified physical device reverts to its previous state.
// force - Force the device into a faulted state.
func (pool *Pool) offline(temp, force bool, devs ...string) (err error) {
for _, dev := range devs {
csdev := C.CString(dev)
var newstate VDevState
if newstate = VDevState(C.set_zpool_vdev_offline(pool.list, csdev, booleanT(temp), booleanT(force))); newstate != VDevStateUnknown {
if newstate != VDevStateHealthy {
err = fmt.Errorf(
"Device '%s' offlined, but remains in faulted state",
dev)
}
} else {
err = LastError()
}
C.free(unsafe.Pointer(csdev))
}
return
}
// Clear - Clear all errors associated with a pool or a particular device.
func (pool *Pool) Clear(device string) (err error) {
csdev := C.CString(device)
if len(device) == 0 {
csdev = nil
}
if sc := C.do_zpool_clear(pool.list, csdev, C.ZPOOL_NO_REWIND); sc != 0 {
err = fmt.Errorf("Pool clear failed")
}
return
}
// Attach test
// func (pool *Pool) attach(props PoolProperties, devs ...string) (err error) {
// cprops := toCPoolProperties(props)
// if cprops != nil {
// defer C.nvlist_free(cprops)
// } else {
// return fmt.Errorf("Out of memory [Pool Attach properties]")
// }
// cdevs := C.alloc_cstrings(C.int(len(devs)))
// if cdevs != nil {
// defer C.free(unsafe.Pointer(cdevs))
// } else {
// return fmt.Errorf("Out of memory [Pool Attach args]")
// }
// for i, dp := range devs {
// tmp := C.CString(dp)
// if tmp != nil {
// defer C.free(unsafe.Pointer(tmp))
// } else {
// return fmt.Errorf("Out of memory [Pool Attach dev]")
// }
// C.strings_setat(cdevs, C.int(i), tmp)
// }
// // vroot := C.make_root_vdev(pool.list.zph, cprops, 0, 0, 0, 0, len(devs), cdevs)
// var nvroot *C.struct_nvlist
// if r := C.nvlist_alloc(&nvroot, C.NV_UNIQUE_NAME, 0); r != 0 {
// err = errors.New("Failed to allocate root vdev")
// return
// }
// csTypeRoot := C.CString(string(VDevTypeRoot))
// r := C.nvlist_add_string(nvroot, C.sZPOOL_CONFIG_TYPE,
// csTypeRoot)
// C.free(unsafe.Pointer(csTypeRoot))
// if r != 0 {
// err = errors.New("Failed to allocate root vdev")
// return
// }
// defer C.nvlist_free(nvroot)
// // Now we need to build specs (vdev hierarchy)
// if err = buildVDevTree(nvroot, VDevTypeRoot, vdev.Devices, vdev.Spares, vdev.L2Cache, props); err != nil {
// return
// }
// return
// }
// func (pool *Pool) AttachForce(devs ...string) (err error) {
// return
// }
// func (pool *Pool) Detach(devs ...string) (err error) {
// return
// }
// func (pool *Pool) DetachForce(devs ...string) (err error) {
// return
// }
// func (pool *Pool) Replace(devs ...string) (err error) {
// return
// }