Windows 2008 R2 - large file copy uses all available memory and then tranfer rate decreases dramatically (20x)

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http://social.technet.microsoft.com/forums/en-us/winservergen/thread/3f8a80fd-914b-4fe7-8c93-b06787b03662

i experienced problems described in above link, needed solution...

i have recompiled dyncache on 2008r2 (whs2011), followed instructions original dyncache , replaced .exe.  the performance isn't great (20-30mbytes/s), doesn't drop connection used to.

is of use anyone??

hi rootproxi, reply.  this issue occurs whether transfer local or on network (from 7200rpm source 5400 rpm destination), if transferring between source faster destination though.  before installing dyncache service network connections server lost @ point physical ram on server used.

at first thought problem particular disk (a recert-seagate 2tb 5400rpm), bought new 4tb 7200rpm hitachi , problem seemed go away......until started transferring files 5400rpm drive (a samsung 2tb time).  then found these other reports , couldn't believe sort of bug exist in server o/s!  if wasn't hassle i'd straight linux!  i tried other working set "fixes", nothing helped until tried dyncache service after wrestling visual studio , removing os version checks.

anyway, if can else out there has issue , needs stable system, reply post.  i'd put how-to, there lot of trial , error , wdk , sdk issues never having used visual studio before!

thanks.



Windows Server  >  Windows Server General Forum



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