Performance
IBM HMC client performance
11/05/10 18:12
The HMC java client’s performance is painful, especially if there is much latency on your connection. It also requires Windows. IBM had published a workaround for the performance issue using VNC (which should also work for other non-windows OS’s)
Link
Which is OK, but if you have X11 available I prefer this:
Connect to an lpar
run
wsm -host HMC_NAME
This will open an X11 based HMC client window.
You can also just run
wsm
and add hosts from the client
Link
Which is OK, but if you have X11 available I prefer this:
Connect to an lpar
run
wsm -host HMC_NAME
This will open an X11 based HMC client window.
You can also just run
wsm
and add hosts from the client
Sun's UltraSPARC T1/2 servers are amazing
10/04/10 20:53
I completed an upgrade of our production web and app servers a couple of months ago. For webservers we moved from using Sun E250’s to T1000’s and for the application servers (Weblogic) we moved from V880s to T5220. The change in system load has far exceeded expectations!
Webservers
Application Servers
As an added bonus, the T5220’s, with 3 years maintenance, cost us less than a single years maintenance on theV880’s, and we freed up a lot of rack space.
Webservers
E250 | T1000 | |
CPU's | 2x400MHz | 6x1000MHz |
Peak CPU | 100% | 2.4% |
Peak Load Average | 2.7 | 0.58 |
Application Servers
V880 | T5220 | |
CPU's | 8x900MHz | 8x1200MHz |
Peak CPU | 89% | 7.9% |
Peak Load Average | 11.4 | 4.9 |
As an added bonus, the T5220’s, with 3 years maintenance, cost us less than a single years maintenance on theV880’s, and we freed up a lot of rack space.