Many thanks for the replies. I hope I am not too late in summarizing. i've just finished a big maintenance my first mail wasn't so clear, because some people suggested something i have already done - i say "Cisco switches was configured without autonegotiation 100Mb/s", but it's also right for my all suns machine according infodoc 16144 since 4 years so it's not the way but T. Dick send me info about a sun blue print, so i did new tests with autonegociation my basic test consist of: /bin/time -p dd if=/dev/zero of=/export/nfs/fich1Go bs=1024k count=1000 output file may be on local disk, or on a partition nfs mounted if nfs server (e250 with d1000 raid 1+0) is configured with autonegociation, i saw: Aug 24 15:32:23 kodaly nfs: [ID 333984 kern.notice] NFS server 193.50.130.112 not responding still trying and file size stopped at 32768 bytes and when i try to stop process, i see many errors: Aug 24 15:39:56 kodaly nfs: [ID 664466 kern.notice] NFS commit failed for server 193.50.130.112: error 16 (RPC: Failed (unspecified error)) but if i did a ftp connction, it works! Some results: - time to write on a local disk (d1000): 31.6 seconds (32Mb/s) - from a sun nfs client on this disk: 105 sec (10Mb/s) - from a linux nfs client: 185 sec (5.6Mb/s) all machines are 100Mb/s full duplex from ftp, i obtain 5MB/s (40Mb/s), it's better than to write on a disk!? and finally, ufsdump between e250 and ultra10 with LTO2 gave 5.2MB/s very strange indeed, i don' understand what's happen, or perhaps my tests are irrelevant gerard henry _______________________________________________ sunmanagers mailing list sunmanagers@sunmanagers.org http://www.sunmanagers.org/mailman/listinfo/sunmanagersReceived on Wed Aug 25 09:00:50 2004
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