On 04/01/2015 07:07 AM, Ranjan Maitra wrote:
Btw, I just found out that the filesystem in question is an Isilon filesystem.
That's EMC's "OneFS" filesystem (EMC bought out Isilon).
On Wed, 1 Apr 2015 08:07:34 -0500 Ranjan Maitra <maitra.mbox.ignored@xxxxxxxxx> wrote:
Thanks to both Cameron and you, Bob!
After the transfer, here is what we have, on that filesystem:
$ du -sh kmeans --apparent-size
154G kmeans
$ du -sh kmeans
628G kmeans
So, I guess that leaves me (and others) stuck.
Is "kmeans" on the target or the source filesystem? If it's the source,
keep in mind that OneFS can do data dedupes (assuming it's enabled),
but it is a NAS device (NFS and/or SMB). I don't believe it's capable
of sparse files (few NAS are). The data dedupe would reduce the actual
storage on disk on the EMC device , but not report it as a sparse
filesystem.
On Mon, 30 Mar 2015 21:14:38 -0500 Robert Nichols <rnicholsNOSPAM@xxxxxxxxxxx> wrote:
On 03/30/2015 04:39 PM, Ranjan Maitra wrote:
Thanks, Cameron!
If the far end is windows, certainly sparse files will no longer be sparse at
the far end. This kind of thing is one reason we get so picky when getting
employers to order NASes; we asked for a QNAP (cheap, useful, Linux backend)
and they wanted to order Microsoft's storage thingummy, which would have broken
all sorts of stuff just like what you're encountering.
I suspect that that is what has happened here: the stuff is too high-end to be of any use.
Try the "du" command again, but this time with the "--apparent-size" option.
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