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AIX
Network Perforamnce - It's just slow!
Post 303033091 by BDMcGrew on Friday 29th of March 2019 02:32:40 PM
03-29-2019
Network Perforamnce - It's just slow!
Hello everyone,
I've been a life long Unix/Linux user but I'll be the first to admit I have little specific AIX knowledge at this point and I've inherited these systems for better or worse so please forgive if I ask something in the wrong context. And yes, I've searched google for 3 days now
I have a bunch of Power755 machines running AIX 6.1.0.0. I have multiple FC adapters to storage and 10GbE ethernet.
On the very same network, switch and storage I also have a bunch of x86 machines running RHEL75, multiple FC adapters to storage and 10GbE ethernet.
On the Linux boxes I can copy files (scp, ftp, nfs, rsync) at about 150MB/s.
On the AIX boxes those same copies are running around 40MB/s.
And, I can't figure out why???
I've been though several network tuning walkthru's found on google and nothing seems to make any difference.
Obviously the Power755's are 8 year old hardware where there x86 machines are circa 2017/2018 hardware and the AIX boxes only have 32GB of RAM where my x86 stuff has 256GB and 512GB. But, does that really account for the difference in network performance? I just have a hard time believing that IBM would put out a piece of iron that doesn't perform of up the published specs...
Anyway, if someone can help point me in the direction to track this down I'd much appreciate it.
The FC cards are all same speed, 8Gbps, there's plenty of flash and spindles in the NetApp that I know there's no bottle neck there. We've swapped ethernet adapters, cables, swtichports, etc. and I'm left with little choice but to draw the conclusion that somehow these AIX boxes are configured incorrectly. Oh, and yes, the ethernet ports ‘show' they are up at 10GB.
Thanks in advance,
-brian
I've been a life long Unix/Linux user but I'll be the first to admit I have little specific AIX knowledge at this point and I've inherited these systems for better or worse so please forgive if I ask something in the wrong context. And yes, I've searched google for 3 days now
I have a bunch of Power755 machines running AIX 6.1.0.0. I have multiple FC adapters to storage and 10GbE ethernet.
On the very same network, switch and storage I also have a bunch of x86 machines running RHEL75, multiple FC adapters to storage and 10GbE ethernet.
On the Linux boxes I can copy files (scp, ftp, nfs, rsync) at about 150MB/s.
On the AIX boxes those same copies are running around 40MB/s.
And, I can't figure out why???
I've been though several network tuning walkthru's found on google and nothing seems to make any difference.
Obviously the Power755's are 8 year old hardware where there x86 machines are circa 2017/2018 hardware and the AIX boxes only have 32GB of RAM where my x86 stuff has 256GB and 512GB. But, does that really account for the difference in network performance? I just have a hard time believing that IBM would put out a piece of iron that doesn't perform of up the published specs...
Anyway, if someone can help point me in the direction to track this down I'd much appreciate it.
The FC cards are all same speed, 8Gbps, there's plenty of flash and spindles in the NetApp that I know there's no bottle neck there. We've swapped ethernet adapters, cables, swtichports, etc. and I'm left with little choice but to draw the conclusion that somehow these AIX boxes are configured incorrectly. Oh, and yes, the ethernet ports ‘show' they are up at 10GB.
Thanks in advance,
-brian
Last edited by Corona688; 03-29-2019 at 03:34 PM.. Reason: Font & newline issues
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LEARN ABOUT OPENSOLARIS
scconf_transp_adap_e1000g
scconf_transp_adap_e1000g(1M) System Administration Commands scconf_transp_adap_e1000g(1M) NAME
scconf_transp_adap_e1000g - configure the Intel PRO/1000 network adapter DESCRIPTION
Note - Beginning with the Sun Cluster 3.2 release, Sun Cluster software includes an object-oriented command set. Although Sun Cluster software still supports the original command set, Sun Cluster procedural documentation uses only the object-oriented command set. For more infor- mation about the object-oriented command set, see the Intro(1CL) man page. You can configure e1000g Intel PRO/1000 network adapters as cluster transport adapters. These adapters can only be used with transport type dlpi. The e1000g based network adapter connects to a transport switch or to another Ethernet adapter on a different node. In either case, the connection is made through a transport cable. When a transport switch is used and the endpoints of the transport cable are configured by using scconf, scinstall, or other tools, you are asked to specify a port name on the transport switch. You can provide any port name, or accept the default, as long as the name is unique for the switch. The default is to set the port name to the node identifier that hosts the adapter at the other end of the cable. There are no user configurable properties for cluster transport adapters of this type. ATTRIBUTES
See attributes(5) for descriptions of the following attributes: +-----------------------------+-----------------------------+ | ATTRIBUTE TYPE | ATTRIBUTE VALUE | +-----------------------------+-----------------------------+ |Architecture |x86 | +-----------------------------+-----------------------------+ SEE ALSO
Intro(1CL), clinterconnect(1CL), clnode(1CL), scconf(1M), scinstall(1M), e1000g(7D) Sun Cluster 3.2 4 May 2006 scconf_transp_adap_e1000g(1M)