Throughput problems with solaris aggregation


 
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Operating Systems Solaris Throughput problems with solaris aggregation
# 1  
Old 12-02-2011
Throughput problems with solaris aggregation

Hello gurus,
I have the following configuration in the server side:

Code:
# dladm show-aggr
key: 33 (0x0021)        policy: L4      address: 0:14:4f:6c:11:8 (auto)
           device       address           speed         duplex  link   state
           nxge0        0:14:4f:6c:11:8   1000  Mbps    full    up     attached
           nxge1        0:14:4f:6c:11:9   1000  Mbps    full    up     attached
           nxge2        0:14:4f:6c:11:a   1000  Mbps    full    up     attached
           nxge3        0:14:4f:6c:11:b   1000  Mbps    full    up     attached

# dladm show-aggr -L
key: 33 (0x0021)        policy: L4      address: 0:14:4f:6c:11:8 (auto)
                LACP mode: active  LACP timer: short
    device    activity timeout aggregatable sync  coll dist defaulted  expired
    nxge0     passive  short   yes          no    no   no   no         no
    nxge1     passive  short   yes          no    no   no   no         no
    nxge2     passive  short   yes          no    no   no   no         no
    nxge3     passive  short   yes          no    no   no   no         no

# ifconfig aggr1
aggr33: flags=1000842<BROADCAST,RUNNING,MULTICAST,IPv4> mtu 1500 index 8
        inet 0.0.0.0 netmask 0
        ether 0:3:ba:d8:9d:e8
 
# ifconfig aggr1 192.168.1.1/24 broadcast + up
 
# ifconfig aggr1
aggr1: flags=1000843<UP,BROADCAST,RUNNING,MULTICAST,IPv4> mtu 1500 index 8
        inet 192.168.1.1 netmask ffffff00 broadcast 192.168.1.255

My switch have etherchannel configuration in LACP active mode.

I have four clients that send data to server through your 1GB ETH interface. With this configuration,
I can't receive more than 1GB in the aggregation link. I did try everything and I could not break this speed.


I appreciate your help.

Last edited by Scott; 12-02-2011 at 02:57 PM.. Reason: Please use code tags
# 2  
Old 12-02-2011
Because it is not possible. One session is limited to the speed of a single aggregation component. But if you will send multiple files simultanously, then you should achieve 4GB/s link saturation.
# 3  
Old 12-02-2011
Thanks for your comment.
I had tried to open multiple sessions from clients through RMAN, is this the same?
Regards,
# 4  
Old 12-02-2011
If one RMAN session is able to reach 1GB/s throughput, then yes. You can monitor the saturation of aggregation with:
Code:
dladm show-aggr -s -i 1

This User Gave Thanks to bartus11 For This Post:
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