vgextend

هذا الجزء لم يُترجم بعد. أنت ترى النص الإنجليزي.

ماذا يفعل

vgextend VG PV... adds new space to a VG while everything runs. Devices that are not PVs yet are initialized for you. vgreduce VG PV removes a PV — it must be empty first (pvmove moves its data to the other PVs).

طريقة الكتابة

vgextend [OPTION]... VG PV...
vgreduce [OPTION]... VG PV...
vgreduce --removemissing VG

الخيارات 20

الأكثر استخدامًا

--restoremissing: Add back a PV that was missing.
-f, --force: Force.
-A, --autobackup y|n: Back up the metadata.
--metadatasize SIZE, --pvmetadatacopies N, --metadataignore y|n, --dataalignment SIZE, --dataalignmentoffset SIZE, --labelsector N, -M, --metadatatype lvm2, -Z, --zero y|n: Settings for PVs created on the fly.
--reportformat basic|json: Output format.

vgreduce

-a, --all: Remove all empty PVs.
--removemissing: Remove PVs that are gone (failed disk).
--mirrorsonly: With --removemissing: only mirror images.
-f, --force: Force (with --removemissing: also remove LVs on the missing PV).

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.

أمثلة 10

$ مستخدم عادي# بصلاحية root (أو مع sudo)

1Add a disk to a VG

#vgextend vgdata /dev/vdd
  Volume group "vgdata" successfully extended

The new space is free for LVs at once.

2Check the new size
```
#vgs vgdata
```
VFree is bigger.

3Then grow an LV

#lvextend -r -l +100%FREE /dev/vgdata/lvdata

Uses all new space.

4Remove a disk from a VG
```
#pvmove /dev/vdc
#vgreduce vgdata /dev/vdc
```
pvmove first; vgreduce refuses PVs in use.
5Remove all empty PVs
```
#vgreduce -a vgdata
```
Cleans unused disks out of the VG.
6A disk died
```
#vgreduce --removemissing vgdata
```
Lets the VG work again; LVs on that disk are lost (use --force to drop them).
7Test before
```
#vgreduce -t vgdata /dev/vdc
```
Shows what would happen.
8Replace an old disk with a new one (no downtime)
```
#vgextend vgdata /dev/vde; pvmove /dev/vdc /dev/vde; vgreduce vgdata /dev/vdc
```
Classic migration to new storage.
9Wipe the removed disk
```
#pvremove /dev/vdc
```
Removes the LVM label.
10Check which PVs are empty
```
#pvs -o pv_name,vg_name,pv_used
```
pv_used 0 = can be removed.

رموز الخروج

`0`	Done.
`5`	Error.

`vgextend`

ماذا يفعل

طريقة الكتابة

الخيارات 20

vgextend

vgreduce

Common LVM options

أمثلة 10

1Add a disk to a VG

2Check the new size

3Then grow an LV

4Remove a disk from a VG

5Remove all empty PVs

6A disk died

7Test before

8Replace an old disk with a new one (no downtime)

9Wipe the removed disk

10Check which PVs are empty

رموز الخروج

الدليل الكامل

vgextend

ماذا يفعل

طريقة الكتابة

الخيارات 20

vgextend

vgreduce

Common LVM options

أمثلة 10

1Add a disk to a VG

2Check the new size

3Then grow an LV

4Remove a disk from a VG

5Remove all empty PVs

6A disk died

7Test before

8Replace an old disk with a new one (no downtime)

9Wipe the removed disk

10Check which PVs are empty

رموز الخروج

أوامر مرتبطة

مُستخدم في هذه الدروس

مُستخدم في هذه المعامل

الدليل الكامل

`vgextend`