I'm having a quite strange issue. I'm mounting a NFS share from a SAN (ubuntu) to another machine (centos)
Mounting the share works just fine; but when I try some tests like :
dd if=/dev/zero of=bigfile bs=1k count=2000 2000+0 records in 2000+0 records out 2048000 bytes (2.0 MB) copied, 16.7555 seconds, 122 kB/s
On clientside, network has MTU 9000; i can successfully ping -s 8000 at least the server.
On SAN side it has 4 Gigabit interfaces bonded.
Both sides run NFS4; mounting using :
mount -t nfs4 192.168.3.3:/share /myshare/
Where should I start investigating ?
And what is the average transfer rate I could accept ? 50 Mb/s for a single gigabit connection ?
edit: server exports :
edit: local storage test
time dd if=/dev/zero of=bigfile2 bs=1k count=200000 200000+0 records in 200000+0 records out 204800000 bytes (205 MB) copied, 0.509998 seconds, 402 MB/s real 0m0.558s user 0m0.009s sys 0m0.546s