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4.9.4. Specifying Units
To specify the unit for the LVM report display, use the
--units argument of the report command. You can specify (b)ytes, (k)ilobytes, (m)egabytes, (g)igabytes, (t)erabytes, (e)xabytes, (p)etabytes, and (h)uman-readable. The default display is human-readable. You can override the default by setting the units parameter in the global section of the lvm.conf file.
The following example specifies the output of the
pvs command in megabytes rather than the default gigabytes.
# pvs --units m
PV VG Fmt Attr PSize PFree
/dev/sda1 lvm2 -- 17555.40M 17555.40M
/dev/sdb1 new_vg lvm2 a- 17552.00M 17552.00M
/dev/sdc1 new_vg lvm2 a- 17552.00M 17500.00M
/dev/sdd1 new_vg lvm2 a- 17552.00M 17552.00M
By default, units are displayed in powers of 2 (multiples of 1024). You can specify that units be displayed in multiples of 1000 by capitalizing the unit specification (B, K, M, G, T, H).
The following command displays the output as a multiple of 1024, the default behavior.
# pvs
PV VG Fmt Attr PSize PFree
/dev/sdb1 new_vg lvm2 a- 17.14G 17.14G
/dev/sdc1 new_vg lvm2 a- 17.14G 17.09G
/dev/sdd1 new_vg lvm2 a- 17.14G 17.14G
The following command displays the output as a multiple of 1000.
# pvs --units G
PV VG Fmt Attr PSize PFree
/dev/sdb1 new_vg lvm2 a- 18.40G 18.40G
/dev/sdc1 new_vg lvm2 a- 18.40G 18.35G
/dev/sdd1 new_vg lvm2 a- 18.40G 18.40G
You can also specify (s)ectors (defined as 512 bytes) or custom units.
The following example displays the output of the
pvs command as a number of sectors.
# pvs --units s
PV VG Fmt Attr PSize PFree
/dev/sdb1 new_vg lvm2 a- 35946496S 35946496S
/dev/sdc1 new_vg lvm2 a- 35946496S 35840000S
/dev/sdd1 new_vg lvm2 a- 35946496S 35946496S
The following example displays the output of the
pvs command in units of 4 megabytes.
# pvs --units 4m
PV VG Fmt Attr PSize PFree
/dev/sdb1 new_vg lvm2 a- 4388.00U 4388.00U
/dev/sdc1 new_vg lvm2 a- 4388.00U 4375.00U
/dev/sdd1 new_vg lvm2 a- 4388.00U 4388.00U
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