Re: How to 'copy' a volume?

[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]

 



On Fri, 4 Jan 2008, Erich Weiler wrote:

> > # dd if=/dev/volgroup00/original of=/dev/volgroup00/clone bs=300k
> 
> It was probably slow, as you say, but it turns out our machines were 
> powered off by one of the other guys in our group because the UPS was 
> draining fast.  Power was lost because of a major storm on the central 
> California coast.

You can use iostat to see throughput while dd is in progress.  If
you're ambitious, you can try various blocksizes to find the optimum
for your system.

Oh.  And *don't* get source and target mixed up with dd.  I did that
once ....

-- 
	      Stuart D. Gathman <stuart@bmsi.com>
    Business Management Systems Inc.  Phone: 703 591-0911 Fax: 703 591-6154
"Confutatis maledictis, flammis acribus addictis" - background song for
a Microsoft sponsored "Where do you want to go from here?" commercial.

_______________________________________________
linux-lvm mailing list
linux-lvm@redhat.com
https://www.redhat.com/mailman/listinfo/linux-lvm
read the LVM HOW-TO at http://tldp.org/HOWTO/LVM-HOWTO/

[Index of Archives]     [Gluster Users]     [Kernel Development]     [Linux Clusters]     [Device Mapper]     [Security]     [Bugtraq]     [MIPS Linux]     [ARM Linux]     [Linux Security]     [Linux RAID]

  Powered by Linux