Re: questions about blocklayoutdriver.ko

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* Re: questions about blocklayoutdriver.ko
@ 2011-03-11 16:18 白松林
  2011-03-11 17:02 ` Jim Rees
  0 siblings, 1 reply; 2+ messages in thread
From: 白松林 @ 2011-03-11 16:18 UTC (permalink / raw)
  To: bhalevy; +Cc: linux-nfs, 09120171

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^ permalink raw reply	[flat|nested] 2+ messages in thread

* Re: questions about blocklayoutdriver.ko
  2011-03-11 16:18 questions about blocklayoutdriver.ko 白松林
@ 2011-03-11 17:02 ` Jim Rees
  0 siblings, 0 replies; 2+ messages in thread
From: Jim Rees @ 2011-03-11 17:02 UTC (permalink / raw)
  To: 白松林; +Cc: bhalevy, linux-nfs

白松林 wrote:

  We tested the pNFS informance in the environment,and found that when
  client write data to /mnt,all of the data be sent to MDS firstly, and then
  MDS forwarded the data to DS,when we got the package by wireshark,and
  found most of the protocol between MDS and DS are NFS and TCP.

I suspect you don't actually have a pnfs mount.  Check/proc/self/mountstats
for pnfs=LAYOUT_BLOCK_VOLUME.  I recently added a troubleshooting section to
the pnfs block client how-to, maybe that will help.

http://wiki.linux-nfs.org/wiki/index.php/Fedora_pNFS_Client_Setup

^ permalink raw reply	[flat|nested] 2+ messages in thread

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2011-03-11 16:18 questions about blocklayoutdriver.ko 白松林
2011-03-11 17:02 ` Jim Rees

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