[mythtv-users] NAS mobo

[Owen Townend]

2008/8/22 Yan Seiner <yan at seiner.com>:
>
> On Thu, August 21, 2008 2:36 pm, Bobby Gill wrote:
>> On Thu, Aug 21, 2008 at 4:10 PM, Dan Ritter
>> <dsr-myth at tao.merseine.nu>wrote:
>>
>>> On Thu, Aug 21, 2008 at 07:04:42AM -0700, Yan Seiner wrote:
>>> >
>>> > What I don't want to do is to implement a solution today and then have
>>> > to rip it out a year later.  If nothing else, do you have any idea how
>>> > long rsync takes to dump and verify a TB over an ethernet connection?
>>> 2+
>>> > days, and it's not quite done.....  I hate to think what I'd have to
>>> do
>>> > with a 5 or 10 TB array.....
>>>
>>> Gigabit ethernet, 80% efficiency, straight throughput: 800Mb/s,
>>> = 100MB/s, = 10,000 seconds for a terabyte. So, 2 hours 45
>>> minutes. Call it 3 hours per TB.
>>>
>>> You aren't getting 100MB/s off your disks, or you aren't able to
>>> write that fast, or you're using rsync inappropriately (perhaps
>>> in combination with SSH). I would guess all three. If you want
>>> to transfer a large amount of data quickly, rsync's default
>>> options aren't the way to go. Rsync might not be the way to go
>>> for the initial transfer, really.
>>>
>>> -dsr-
>>>
>>> --
>>> http://tao.merseine.nu/~dsr/eula.html<http://tao.merseine.nu/%7Edsr/eula.html>is
>>> hereby incorporated by reference.
>>>
>>> When freedom gets lots of exercise, it protects itself.
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>>>
>>
>>
>> Sorry, haven't followed the entire thread so disregard if irrelevant but
>> I'd
>> agree with Dan. I transfer many TB regularly over my home network using
>> mounted NFS and regular ol' cp -rup for large initial transfers and just
>> have rsync -avzdp afterwards in cronjobs or as required.
>>
>
> Well, yabbut... ATM I'm dumping to an old server with 100 mb/s ethernet.
> I have thousands and thousands of small files.  And the files have
> multiple hardlinks, which really, really slows rsync down.  (And why cp
> won't work.)
>
> Gah.  I wish it was 3 hours.  I wish I had a new NAS with gigabit
> ethernet.  I wish I had a pony.  :-)
>
> At least it's done.  Finally.
>
> --Yan

Hey,
  You might want to have a look over this thread here:
http://www.avsforum.com/avs-vb/showthread.php?t=940972
  Nice examples of setups similar to the one you're doing.

cheers,
Owen.