On Thursday 06 March 2008 09:21:53 am Keith Lofstrom wrote: > A reminder - using any file-level tool (like rsync or cp or dump or > tar) to copy a complete Dirvish vault, with tens or hundreds of images > hard-linked together, may take a very long time. Even though the > final result (preferably using rsync) will be a similar collection > of hard-linked files of the same size (with only the date stamps on > the soft-linked files different), the system at the sending end will > have to walk through every one of the source images. This can take > many days or even weeks. > > It can be easier to just copy the partition as a binary file, then > use some tool to resize it at the target end. I am learning about > lvm and the Redhat tool resize2fs (which I just used to double the > size of an active partition - scary!), and will try them on a > dirvish bank soon. > > See also the ancient: http://wiki.dirvish.org/index.cgi?CopyingDisks > > Keith
Tar is actually very fast. I used it to split a bank about a month ago. It was a little unnerving, so I ran rsync -aH on top of (after) tar, and rsync did almost nothing. The du -hcs * in each vault already matched. LVM + resize2fs is one of my very best friends. I grow and shring partions all the time. It's a real kick to move a partition from one disk to another while the partition is in use without rebooting, or even taking the partition offline. _______________________________________________ Dirvish mailing list [email protected] http://www.dirvish.org/mailman/listinfo/dirvish
