[plug] dd speed estimates and /dev/hdx grepping

[Jay Turner]

DOH!

Forgot it was 512b not 512kb.. I stopped it and reset it to bs=512k

New restart time.. 13:05WST

> -----Original Message-----
> From: plug-admin at plug.linux.org.au
> [mailto:plug-admin at plug.linux.org.au]On Behalf Of Craig Ringer
> Sent: Thursday, 23 October 2003 12:56 PM
> To: plug at plug.linux.org.au
> Subject: Re: [plug] dd speed estimates and /dev/hdx grepping
> 
> 
> > I have now started the copy with dd if=/dev/hda of=/dev/hdc
> > I checked the cache size for the drives the src has 512kb and 
> the dest has
> > 2Mb.. so i left the default bs as is.
> 
> dd uses a 512B block size by default - you probably wanted at least 
> 512kB. A wee bit late now, of course.
> 
> > I started this at 12:40WST so we'll see how long it takes.. and 
> if it even
> > works.
> 
> It's quite possible that the new disk will come out unreadable due to 
> issues with disk "geometry". While modern disks don't expose their 
> internal geometry, they do provide "virtual" disk geometry to the BIOS 
> and this can differ disk-to-disk. I've certainly had problems with 
> disk-to-disk copies between non-identical disks. I've found the most 
> reliable way is to recreate the partition table on the new disk, then do 
> a partition-by-partition copy. This is also more flexible. Still, with 
> luck the direct copy of the entire disk will do the trick.
> 
> Craig Ringer
> 
> 
> _______________________________________________
> plug mailing list
> plug at plug.linux.org.au
> http://mail.plug.linux.org.au/cgi-bin/mailman/listinfo/plug
> 
> 

_______________________________________________
plug mailing list
plug at plug.linux.org.au
http://mail.plug.linux.org.au/cgi-bin/mailman/listinfo/plug