"Jeffrey J. Kosowsky" <[email protected]> wrote on 05/17/2011 01:11:16
PM:
> I haven't noticed any NFS problems due to hard links.
> I get approximately the same speed of transfer operations when I am
> reading/writing regular file or massively hard-linked ones.
>
> In my experience, the issue with hard links (e.g., rsync copying of
> the pool) has nothing to do with NFS (or any file system for that
> matter).
>
> Do you have any data supporting your claim that NFS suffers more than
> other filesystems with massive hard links?
>
> Again, the only issue I have with NFS is that it is relatively slow
> when accessing large numbers of small files due to the protocol
> overhead. But even so, it is quite workable even on a 100MHz ethernet.
Woah! I take it all back! Feel free to use NFS: go nuts. Is NFS' honor
now sufficiently defended?!?
Do I have "data"? Like a peer-reviewed paper presented at a prestigious
conference? No. Like everyone else, I have anecdotes, and I know that
the plural of anecdote is not data.
However, I've got about 15 years of hard-fought experience that tells me
that there are too many corner-cases that makes NFS in this application
a... challenging choice.
Throw in the fact that in 98% of the time (and no, I have no "data" for
that statistic, either), when someone says "NAS" they mean "extremely
low-end NAS", and a device designed with the realization that 98% of the
time it will be accessed via SMB *exclusively*. For such a device, NFS
support is *merely* a checkbox. I've worked with 4 or 5 brands of these
things, and *EVERY* one of them has had *some* sort of weridness with NFS:
permissions, extended attributes, whatever.
For those willing to compile their own Linux kernel or build their own
distribution for an embedded device these are probably not limitations:
'tis just a flesh wound. For most everyone else, it's often not something
you want to fight through for a device that is designed to protect their
data against disaster...
But like I said, go nuts with NFS. And if it works, great.
Timothy J. Massey
Out of the Box Solutions, Inc.
Creative IT Solutions Made Simple!
http://www.OutOfTheBoxSolutions.com
[email protected]
22108 Harper Ave.
St. Clair Shores, MI 48080
Office: (800)750-4OBS (4627)
Cell: (586)945-8796
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