Rich Freeman on 25 Apr 2016 17:37:48 -0700


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Re: [PLUG] [plug-announce] TOMORROW - Tue, Apr 19, 2016: PLUG North - "Linux Containers" by Jason Plum and Rich Freeman (*6:30 pm* at CoreDial in Blue Bell) 

On Mon, Apr 25, 2016 at 8:03 PM, Keith C. Perry
<kperry@daotechnologies.com> wrote:
> I wouldn't say rsync is 100% actually.  I've had problems with it since it doesn't know is everything has been written to disk.

It is only 100% with the --checksum option, which requires both sides
of the rsync to read every file that has matching metadata.  Almost
nobody uses this option as a result as it is A LOT slower.  zfs and
btrfs can reliably detect any modification to a file (whether it be in
the data or the inode) without having to read anything but the
metadata, and using a btree search it doesn't even have to check most
of the metadata.

-- 
Rich
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