On Oct 8, 10:31pm, Michael wrote:
} Subject: RE: mirroring over net
> Perhaps this would be true on a normal network connection, but I would
> expect on a NDB raid setup one would want to run fo connections or the
> super fast proprietary linux network connection between the two machines
> to enhance access time. This should give bandwidth between machines
> comparable to the bandwidth to the disks themselves.
The network connection isn't the bottleneck, its the NBD components.
I have run RAID0 composites built on top of NBD block devices over
switched Gigabit ethernet with poor performance.
Actually the performance is quite good until a certain I/O volume
level is hit and than things get really dismal. My understanding is
that it is due to the NBD system not dealing with out of order
rights. I haven't had anyone give me any hints as to how to best
attack this problem.
> Michael
Greg
}-- End of excerpt from Michael
As always,
Dr. G.W. Wettstein Enjellic Systems Development - Specializing
4206 N. 19th Ave. in information infra-structure solutions.
Fargo, ND 58102 WWW: http://www.enjellic.com
Phone: 701-281-1686 EMAIL: [EMAIL PROTECTED]
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