pvmove

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Wat het doet

pvmove PV moves all used extents from that PV to free space on the other PVs of the VG. Then you can remove the PV with vgreduce — the way to replace a disk without downtime. With a target PV (pvmove OLD NEW) the data goes there. A move can be stopped and continued.

Zo schrijf je het

pvmove [OPTION]... SOURCE_PV[:PE...] [DEST_PV...]
pvmove --abort

Opties 20

Meest gebruikt

-n, --name LV: Move only the extents of this LV.
-b, --background: Run in the background.
-i, --interval SECONDS: How often to show progress.
--abort: Stop all running moves.
--atomic: Move all LVs at once (all or nothing).
--alloc POLICY: Allocation policy for the new place.
-A, --autobackup y|n: Back up the metadata.
--noudevsync: Do not wait for udev.
--reportformat basic|json: Output format.

Common LVM options

-t, --test: Test only; change nothing.
-v, --verbose: More output (repeat for more).
-q, --quiet: Less output.
-y, --yes: Answer yes to questions.
-d, --debug: Debug output.
--config STRING: Override lvm.conf settings for this command only.
--commandprofile STRING, --profile STRING: Use a configuration profile.
--devices PV, --devicesfile STRING: Limit the devices LVM looks at.
--driverloaded y|n, --nolocking, --lockopt STRING, --nohints, --journal STRING: Special and debug settings.
-h, --help, --longhelp: Show help.
--version: Show the version.

Voorbeelden 10

$ als gewone gebruiker# als root (of met sudo)

1Empty a PV

#pvmove /dev/vdc
  /dev/vdc: Moved: 23.53%
  /dev/vdc: Moved: 100.00%

The VG needs enough free space on other PVs.

2Move to a chosen PV
```
#pvmove /dev/vdc /dev/vde
```
New disk first added with vgextend.
3Then remove the PV
```
#vgreduce vgdata /dev/vdc; pvremove /dev/vdc
```
The disk can now be removed.
4Move only one LV
```
#pvmove -n lvdata /dev/vdc /dev/nvme0n1p3
```
Put a busy LV on a faster disk.

5In the background

#pvmove -b /dev/vdc
#lvs -a -o name,copy_percent

Watch the progress with lvs.

6Continue after an interruption
```
#pvmove
```
Without arguments it continues unfinished moves.
7Stop a move
```
#pvmove --abort
```
The data stays where it was safe.
8Check that the PV is empty
```
#pvs -o pv_name,pv_used /dev/vdc
```
pv_used 0 = empty.

9Full disk replacement in one go

#vgextend vgdata /dev/vde && pvmove /dev/vdc /dev/vde && vgreduce vgdata /dev/vdc

Old storage array to new one.

10Move a range of extents
```
#pvmove /dev/vdc:0-999 /dev/vde
```
Fine control (rarely needed).

Exitcodes

`0`	Done.
`5`	Error.

`pvmove`

Wat het doet

Zo schrijf je het

Opties 20

Common LVM options

Voorbeelden 10

1Empty a PV

2Move to a chosen PV

3Then remove the PV

4Move only one LV

5In the background

6Continue after an interruption

7Stop a move

8Check that the PV is empty

9Full disk replacement in one go

10Move a range of extents

Exitcodes

Volledige handleiding

Wat het doet

Zo schrijf je het

Opties 20

Common LVM options

Voorbeelden 10

1Empty a PV

2Move to a chosen PV

3Then remove the PV

4Move only one LV

5In the background

6Continue after an interruption

7Stop a move

8Check that the PV is empty

9Full disk replacement in one go

10Move a range of extents

Exitcodes

Verwante commando's

Gebruikt in deze lessen

Gebruikt in deze labs

Volledige handleiding

`pvmove`