pvs

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Wat het doet

pvs prints one line per PV with its VG, size and free space. pvdisplay shows all details (PE size, total and free PEs, UUID). With -o you choose report columns and with -S you filter. pvscan scans devices for PVs and can trigger auto-activation.

Zo schrijf je het

pvs [OPTION]... [PV...]
pvdisplay [OPTION]... [PV...]
pvscan [OPTION]...

Opties 34

Meest gebruikt

Report (pvs, also lvs/vgs)

-o, --options COLUMNS: Columns, like pv_name,vg_name,pv_size,pv_free (+col = add).
-O, --sort COLUMNS: Sort by columns (-col = descending).
-S, --select EXPR: Filter, like 'pv_free>1g'.
--units UNIT: Units: h, b, k, m, g, t, s (sectors), e (extents)… capital = powers of 1000.
--nosuffix: No unit letters (for scripts).
--noheadings: No header line.
--separator TEXT: Column separator.
--aligned: Align with a separator.
--nameprefixes, --unquoted: Output as NAME=value pairs.
--rows: Columns as rows.
--segments: One line per segment.
-a, --all: Also devices that are not PVs.
--binary: 0/1 instead of words.
--reportformat basic|json: JSON output.
--configreport log|vg|lv|pv|pvseg|seg, --logonly: Report details.
--foreign, --shared, --readonly, --ignorelockingfailure, --unbuffered: Special report settings.

pvdisplay

-m, --maps: Show which extents belong to which LV.
-C, --columns: Report like pvs.
-s, --short: Only the device and size.

pvscan

--cache: Update the device cache and auto-activation.
-a, --activate ay: Activate VGs that become complete.
-n, --novolumegroup: Only PVs without a VG.
-e, --exported: Only PVs of exported VGs.

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)

1All PVs

#pvs
  PV         VG     Fmt  Attr PSize   PFree
  /dev/vda2  rhel   lvm2 a--  <19.00g      0
  /dev/vdb1  vgdata lvm2 a--   <5.00g   1.00g

PFree = free space on that PV.

2Details of one PV
```
#pvdisplay /dev/vdb1
```
PE Size, Total PE, Free PE, Allocated PE, UUID.
3Which LVs use this PV?
```
#pvdisplay -m /dev/vdb1
```
Needed before you remove a disk.
4Own columns
```
#pvs -o pv_name,vg_name,pv_size,pv_free,dev_size
```
dev_size shows the size of the device itself.
5PVs with free space
```
#pvs -S 'pv_free>0'
```
Where can new LVs go?

6Sizes in MiB for scripts

#pvs --units m --nosuffix --noheadings -o pv_free /dev/vdb1

Just a number.

7JSON
```
#pvs --reportformat json
```
For automation.
8PVs not in any VG
```
#pvscan -n
```
New disks ready to use.
9Scan after adding disks
```
#pvscan --cache
```
Updates LVM's view of devices.
10Segments of a PV
```
#pvs --segments -o +lv_name
```
Which LV uses which extents.

Exitcodes

`0`	Done.
`5`	Error.

`pvs`

Wat het doet

Zo schrijf je het

Opties 34

Report (pvs, also lvs/vgs)

pvdisplay

pvscan

Common LVM options

Voorbeelden 10

1All PVs

2Details of one PV

3Which LVs use this PV?

4Own columns

5PVs with free space

6Sizes in MiB for scripts

7JSON

8PVs not in any VG

9Scan after adding disks

10Segments of a PV

Exitcodes

Volledige handleiding

Wat het doet

Zo schrijf je het

Opties 34

Report (pvs, also lvs/vgs)

pvdisplay

pvscan

Common LVM options

Voorbeelden 10

1All PVs

2Details of one PV

3Which LVs use this PV?

4Own columns

5PVs with free space

6Sizes in MiB for scripts

7JSON

8PVs not in any VG

9Scan after adding disks

10Segments of a PV

Exitcodes

Verwante commando's

Gebruikt in deze lessen

Gebruikt in deze labs

Volledige handleiding

`pvs`