Hey Folks, So we''ve got an interesting question. We''re looking at various MDT solutions for a small (120TB) filesystem. We recently have been testing out some Intel X25-Es and are getting mind-blowing performance out of them and think they''d be perfectly positioned for an MDT. We have some options here to consider and wonder if anyone has any insight. We have some dell 2950''s on site (6 bay). One thought it fully populating a 2950 and using raid5/6. Now, I know many of you are gasping right now, but I wonder if anyone has done the testing already for something like this. Does the drastic cut in latency to the disk negate the XOR latency inherent in parity RAID? Our other option is just getting an 8 bay 2970 and doing RAID10, something we don''t have so much hesitation with but would require the purchase of extra hardware. Thoughts? ---------------- John White HPC Systems Engineer (510) 486-7307 One Cyclotron Rd, MS: 50B-3209C Lawrence Berkeley National Lab Berkeley, CA 94720