Mirror question

[Ralf Buchhold]

Hello
what does it mean:
Mirror Consitency: NO

Thanks
Ralf

[RAC_1]

It means at the time of vg activation, mirror consistency will not be checked. man lvcreate. Check otions -c and -M (-c options is effective only with -M option specified.)
By default it is on.

Anil

[Uday_S_Ankolekar]

This means MWC(Mirror Write Cache) is off
This approach is useful when running an application program (such as a database) that has its own means of maintaining or recoveringconsistent data, such as transaction logfiles.
-USA..

[Duncan Edmonstone]

Typically this is turned OFF for swap volumes (why bother re-silvering a swap volume after a reboot?)

HTH

Duncan

[Rajeev Tyagi]

Ralf,

It means in case of system crash stale extents will not be synchronized automatically during reboot or VG activation. You will have to use lvsync to manually synchronize the mirrored logical volume.