the hostname of any server will do. -- rob
On Jan 16, 2008, at 2:39 AM, Wang Yu wrote:
Well, I have another question.
When we have several IO servers and want to mount pvfs2 in one
client, in the command "mount -t pvfs2 tcp://testhost:3334/pvfs2-fs /
mnt/pvfs2" what IO server's hostname should replace 'testhost'?
Thanks a lot!
On Jan 16, 2008 11:19 AM, Rob Ross <[EMAIL PROTECTED]> wrote:
the default is simple stripe, which does the traditional round-robin
striping you're probably most familiar with. twod_stripe is a two-
dimensional striping pattern used to combat incast.
rob
On Jan 15, 2008, at 8:58 PM, Wang Yu wrote:
> Okay. Thanks!
> Well, what is the difference among basic_dist, simple_stripe and
> twod_stripe? and what is the default of pvfs2, is it
> simple_stripe(stripe across all IO servers)?
> Thanks!
>
>
> On Jan 16, 2008 10:12 AM, Rob Ross <[EMAIL PROTECTED]> wrote:
> http://www.pvfs.org/doc/pvfs2-faq/
> index.php#SECTION00075000000000000000
>
> 6.5.2 Distribution parameters
>
> Some distributions allow you to set parameters that impact how the
> distribution behaves. These parameters can be set as follows:
>
> prompt# setfattr -n "user.pvfs2.dist_params" -v "strip_size:4096" /
> mnt/
> pvfs2/directory
>
> You can specify more than one "parameter:value" pair by seperating
> them with commas.
>
> 6.5.3 Number of datafiles
>
> You can also specify the number of datafiles to stripe across:
>
> prompt# setfattr -n "user.pvfs2.num_dfiles" -v "1" /mnt/pvfs2/
> directory
>
> PVFS defaults to striping files across each server in the file
system.
> However, you may find that for small files it is advantages to limit
> each file to only a subset of servers (or even just one).
>
>
> On Jan 15, 2008, at 8:01 PM, Wang Yu wrote:
>
> > Hi, all
> > Now I have three IO servers and one metadata server and multiple
> > clients. When I write a file in one client, how can I control this
> > file is stored into one IO server or all IO servers. Namely, how
do
> > single and stripe storage pattern in pvfs2 work? and how to tune
the
> > stripe size?
> > Would you please tell me about the storage pattern of pvfs2? or
some
> > documents will be appreciated!
> > Thanks!
> >
> > --
> > National Research Center for Intelligent Computing Systems
> > Institute of Computing Technology, Chinese Academy of Sciences
> > _______________________________________________
> > Pvfs2-users mailing list
> > [email protected]
> > http://www.beowulf-underground.org/mailman/listinfo/pvfs2-users
>
>
>
>
> --
> National Research Center for Intelligent Computing Systems
> Institute of Computing Technology, Chinese Academy of Sciences
--
National Research Center for Intelligent Computing Systems
Institute of Computing Technology, Chinese Academy of Sciences
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