vg in readonly mode

[Tvs]

hi all.

Iam new to lvm.can you pls help me to find out when we are activating the vg in read only mode .(vgchange -ar ). and in which scenario.

thanks in advance

[Pedro Cirne · Accepted solution]

Hi,

You only use read-only for maintenance purposes, I rarelly used it.

Enjoy :)

Pedro

[melvyn burnard]

vgdisplay should tell you how it is activated.

And the normal use for read-only mode is testing, or doing backups where you want no changes made while backing up.

This is not ofetn used in normal practice.

[Raj D.]

Tvs ,

vgchange -ar , will activate the volume group in readonly mode and the vg and all the associated Physical volume becomes read only , and can be used for testing purpose , and backup , or when need no write operation. And practically we use rarely.

Cheers,
Raj.

[Tvs]

Thanks a lot