Hello
<br>
I'll first give you my setup, and then explain my problems.<br>
<br>
NexentaOS_134f i86pc i386 i86pc Solaris - NexentaCore 30 Hardy 804b134<br>
2x Western Digital Caviar Black WD6402AAEX 640GB 7200 SATA 6.0Gb/s (Mirror 
Boot)<br>
9x HITACHI Deskstar 7K2000 HDS722020ALA330 2TB 7200 SATA 3.0Gb/s (Data) Raidz2 
+1spare<br>
2x LSI Internal SATA/SAS 9211-8i 6Gb/s PCI-Express 2.0<br>
NORCO RPC-4220 4U Rackmount Server Chassis<br>
Supermicro X8ST3-F Server Board<br>
2x Crucial 6GB (3 x 2GB) DDR3 DDR3 1333 ECC Unbuffered Triple Channel Kit 
Server<br>
Intel Xeon E5520 Nehalem 2.26GHz<br>
<br>
pool: MC-NAS<br>
 state: ONLINE<br>
 scan: none requested<br>
config:<br>
<br>
        NAME                       STATE     READ WRITE CKSUM<br>
        MC-NAS                     ONLINE       0     0     0<br>
          raidz2-0                 ONLINE       0     0     0<br>
            c0t5000CCA221E1DCA2d0  ONLINE       0     0     0<br>
            c0t5000CCA221E2491Ed0  ONLINE       0     0     0<br>
            c0t5000CCA221E285EDd0  ONLINE       0     0     0<br>
            c0t5000CCA221E2A7B3d0  ONLINE       0     0     0<br>
            c0t5000CCA221E2A7B5d0  ONLINE       0     0     0<br>
            c0t5000CCA221E2A7D3d0  ONLINE       0     0     0<br>
            c0t5000CCA221E2A7DDd0  ONLINE       0     0     0<br>
            c0t5000CCA221E2A805d0  ONLINE       0     0     0<br>
        spares
          c1t3d0                   AVAIL   <br>
<br>
errors: No known data errors<br>
<br>
  pool: syspool<br>
 state: ONLINE<br>
 scan: none requested<br>
config:<br>

        NAME          STATE     READ WRITE CKSUM<br>
        syspool       ONLINE       0     0     0<br>
          mirror-0    ONLINE       0     0     0<br>
            c1t0d0s0  ONLINE       0     0     0<br>
            c1t1d0s0  ONLINE       0     0     0<br>
<br>
errors: No known data errors<br>
<br>
My problem has to deal with performance.  When I have simultaneous transfers 
going from multiple PC's, the transfers speeds are <br>really slow. Meaning, i 
start at 80MB/s or so and drop to 25MB/s on one PC (windows 7), and the other 
PC (windows xp) maxes <br>out at 14MB/s. If the xp pc stops the windows 7 pc 
takes off again. This cant be normal. I mean when both are going I'm only 
<br>getting 40MB/s. And why is the windows xp pc so slow from the start? Its 
has a gig card and connected to the same gig switch.<br>
<br>
To add, when i try to transfer a lot of files/data, the transfer seems to 
stall, and then start again throughout the transfer process.
<br><br>
Any help is greatly appreciated.  I new to this so please try to dumb your 
answers down a little to help me learn. Thanks<br><br>
Joe
<br><br>
C:\>iperf.exe --client 192.168.0.47<br>
------------------------------------------------------------<br>
Client connecting to 192.168.0.47, TCP port 5001<br>
TCP window size: 8.00 KByte (default)<br>
------------------------------------------------------------<br>
[136] local 192.168.0.171 port 36769 connected with 192.168.0.47 port 5001<br>
[ ID] Interval       Transfer     Bandwidth<br>
[136]  0.0-10.0 sec   367 MBytes   307 Mbits/sec<br>

C:\>iperf.exe --client 192.168.0.47 --parallel 5<br>
------------------------------------------------------------<br>
Client connecting to 192.168.0.47, TCP port 5001<br>
TCP window size: 8.00 KByte (default)<br>
------------------------------------------------------------<br>
[168] local 192.168.0.171 port 36778 connected with 192.168.0.47 port 5001<br>
[152] local 192.168.0.171 port 36776 connected with 192.168.0.47 port 5001<br>
[136] local 192.168.0.171 port 36774 connected with 192.168.0.47 port 5001<br>
[160] local 192.168.0.171 port 36777 connected with 192.168.0.47 port 5001<br>
[144] local 192.168.0.171 port 36775 connected with 192.168.0.47 port 5001<br>
[ ID] Interval       Transfer     Bandwidth<br>
[168]  0.0-10.0 sec   217 MBytes   182 Mbits/sec<br>
[152]  0.0-10.0 sec   217 MBytes   182 Mbits/sec<br>
[136]  0.0-10.0 sec   217 MBytes   182 Mbits/sec<br>
[160]  0.0-10.0 sec   202 MBytes   170 Mbits/sec<br>
[144]  0.0-10.0 sec   202 MBytes   169 Mbits/sec<br>
[SUM]  0.0-10.0 sec  1.03 GBytes   884 Mbits/sec<br>
-- 
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