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2008 Sep 16
1
sync always, strict sync, cache question
...nt=16384
268435456 bytes (268 MB) copied, 45.0461 seconds, 6.0 MB/s
This is much too slow for the gigabit network.
We can improve this a lot by exporting /home with the async option
(60-70MB/s), but the NFS documentation strongly recommends against
using async (opposed to sync) because of possible firesystem
corruption if the NFS server crashes. This is a cache issue.
After numerous tests we have given up trying to get it working
properly. And we've been trying CIFS.
Everything works well and write speed is a lot better.
time dd if=/dev/zero of=./testfile bs=16k count=16384
268435456 bytes (268 M...