On Mar 16, 2012, at 8:06 AM, Todd, Allen wrote: > > On Friday, March 16, 2012 6:11 AM, Gregory Matthews wrote: >> why bother having a windows client if you lose the performance? We have >> windows based detectors and proprietary windows based analysis software >> that would definitely benefit from higher performance access to lustre >> file systems but replacing existing CIFS servers for no gain seems a bit >> pointless.
1. Re-exporting Lustre via CIFS or NFS isn't scalable to very large numbers of Windows clients 2. Re-exporting Lustre via CIFS or NFS can have coherency problems when multiple re-exporters are involved 3. Wide-striped file access would likely have greater performance on a native client than via a re-exported single pipe, for some value of "wide". > >> From the perspective of my firm, the benefit of a windows lustre client >> (native or fuse-based), even one that performs at 10% or 20% of the linux >> client, is the improved scalability that it offers. Our current solution >> uses 4 samba gateways per hundred windows servers to achieve acceptable >> bandwidth, but that bandwidth can be cut to an unacceptable trickle if a >> large wave of native linux clients simultaneously accesses the filesystem. > > We have repeatedly asked our Microsoft HPC contacts to intervene to either > fund a native windows client or to get oracle to release the existing one, > since scalable storage is a big hole in the Microsoft HPC toolkit. > Obviously, nothing has come out of that. It seems Microsoft is banking on > pNFS, eventually working in this space. > > Allen Todd > > > > > ________________________________ > > IMPORTANT: The information contained in this email and/or its attachments is > confidential. If you are not the intended recipient, please notify the sender > immediately by reply and immediately delete this message and all its > attachments. Any review, use, reproduction, disclosure or dissemination of > this message or any attachment by an unintended recipient is strictly > prohibited. Neither this message nor any attachment is intended as or should > be construed as an offer, solicitation or recommendation to buy or sell any > security or other financial instrument. Neither the sender, his or her > employer nor any of their respective affiliates makes any warranties as to > the completeness or accuracy of any of the information contained herein or > that this message or any of its attachments is free of viruses. > _______________________________________________ > Lustre-devel mailing list > [email protected] > http://lists.lustre.org/mailman/listinfo/lustre-devel _______________________________________________ Lustre-discuss mailing list [email protected] http://lists.lustre.org/mailman/listinfo/lustre-discuss
