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dd,vxdump

 
Waugh
Frequent Advisor

‎12-18-2008 11:02 PM

‎12-18-2008 11:02 PM

dd,vxdump

what is the diff bteween dd , vxdump and pvmove

reagrds
rkumar
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Torsten.
Acclaimed Contributor

‎12-18-2008 11:06 PM

‎12-18-2008 11:06 PM

Re: dd,vxdump

These commands are completely different, best read yourself:

man dd
man vxdump
man pvmove

in very simple words:
dd is for "raw" data copy
vxdump dumps a file system
pvmove moves LVM physical extends

Hope this helps!
Regards
Torsten.

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Johnson Punniyalingam
Honored Contributor

‎12-18-2008 11:26 PM

‎12-18-2008 11:26 PM

Re: dd,vxdump

dd
dd copies the specified input file to the specified output file with
possible conversions. The standard input and output are used by
default. Input and output block size can be specified to take
advantage of raw physical I/O. Upon completion, dd reports the number
of whole and partial input and output records.

(dd is also used for clone disk / raw data)


vxdump, - incremental file system dump,

pvmove - Used to move allocated physical extents from one LVM physical volume
to other physical volumes
(below Command Example for moving a Logical Volume from disk c1t0do to disk c2t0d0)
pvmove -n /dev/vg01/lvol2 /dev/dsk/c1t0d0 /dev/dsk/c2t0d0

Hope this make you understand ..:)

Thankz,
Johnson
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