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тАО06-06-2006 05:13 AM
тАО06-06-2006 05:13 AM
Thanks,
S.
Solved! Go to Solution.
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тАО06-06-2006 05:21 AM
тАО06-06-2006 05:21 AM
SolutionLVM mirroring is done at the *logical volume* level and is physical extent based. That is, each LVM extent is copied to create a mirror. The filesystem and any data in it, is an abstraction layer *above* the logical volume and matters not.
Regards!
...JRF...
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тАО06-06-2006 05:23 AM
тАО06-06-2006 05:23 AM
Re: LV mirroring and how it works...
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тАО06-06-2006 05:27 AM
тАО06-06-2006 05:27 AM
Re: LV mirroring and how it works...
lvextend ,require the installation of the optional HP MirrorDisk/UX software, which is not included in the standard HP-UX operating system.
to check mirrorDisk/ux;
#swlist -l fileset|grep -i mirror
you can use lvextend like following;
#lvextend -m /dev/vg00/lvol1 /dev/dsk/c2t1d0
A mirror copy contains the same data as the original.mirror_copies can have the value 1 or 2.
The synchronization process can be time consuming, depending on hardware characteristics and the amount of data.
regards;
mustafa
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тАО06-06-2006 05:36 AM
тАО06-06-2006 05:36 AM
Re: LV mirroring and how it works...
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тАО06-07-2006 12:50 AM
тАО06-07-2006 12:50 AM
Re: LV mirroring and how it works...
If you don't have your target disk ready yet, you can try running dd to get timings. It may not be perfect, but will get you a respectable estimate:
dd if=/dev/vgxx/lvoly of=/dev/null bs=
-tjh
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тАО06-07-2006 12:52 AM
тАО06-07-2006 12:52 AM