percentage of mirroring

[changee]

hi,

i am mirroring an lvol. Is there any way i can find out what is the completed percentage of mirroring.Any command which shows "so much percentage is completed ".

thanks,
changee

[A. Clay Stephenson]

Not as such but you changed run lvdisplay -v and see which extents are current and which are stale.

[Jov]

Hi,

Read up on 'vgdisplay' and/or 'lvdisplay' as it should show the status of mirroing in progress. I am pretty sure its 'vgdisplay -d'.


Jov

[James R. Ferguson]

Hi:

# lvdisplay /dev/vgXX/lvolNN|grep -c stale

...will display the number of stale extents remaining.

Regards!

...JRF...

[changee]

i am already using the following command to see the number of 'stale' LE's.
lvdisplay -v /dev/vg01/lvol6 |grep -i stale|wc -l

what i was looking in particular is a way to find the percentage of mirroring.
i donnow wether something of this kind is available in hp.

[Jov]

Now some of these LVM stuff is coming back. No there is no simple command to give a mirror sync progress bar.


Jov

[James R. Ferguson]

Hi (again):

You can easily write a simple script that finds the number of logical extents for a given logical volume passed as the script's argument. Then, loop while the number of stale extents exceeds zero, calculating and printing the percentage of non-stale extents. Sleep for 15-30 seconds during each iteration.

Regards!

...JRF...

[A. Clay Stephenson]

As I said there is no such command but you have the basic ingredients in place to craft one. I rather doubt the usefullness of such a command as the lvsync takes as long as it takes (generally a few tens of minutes) and they are rare events.

[changee]

Thanks to all the experts for your valuable replies.
I wanted to c if theres any way of making life simple rather than grep' for stale LE's.

thanks once again.
changee

[Nguyen Anh Tien]

YES. There is:
Just image that your volume named /dev/vg02/lvol2

Command to check is:
#lvdisplay -v /dev/vg02/lvol2|grep stale|wc
--> to find all PE NOT COMPETED
#lvdisplay -v /dev/vg02/lvol2|wc
To count all PE on LV
HTH

[changee]

Thank You all for your valuable suggestions..

[Vivek_Pendse]

# lvdisplay -v /dev/vgxx/lvolx | grep stale | wc -l
this will show you the remaining stale extenets which is to be mirrored.
& the time to complete depends on the pe extent size.
Thanks,
Vivek