Are you backing up your AIX systems over Virtual Ethernet adapters? Of course you are, who isn’t right? Are your backup server and clients on the same physical POWER system? You are most likely backing up over Virtual Ethernet to another AIX LPAR that is running your enterprise backup software, such as TSM or Legato Networker for example. And you probably have a dedicated private virtual network (and adapters) on both the clients and the server to handle the traffic for the nightly backups. The next question is, have you tuned your... [More]

Tags:  min_buf_huge=96 backup netstat slow hypervisor -a max_buf_huge=128 aix tsm chris_gibson min_buf_large=96 max_buf_large=256 min_buf_medium=512 networker max_buf_medium=1024 adapter -l virtual ent1 chdev –a ethernet

I like lsof .   Whenever I’m building a new AIX system I always make sure to install it. I really like the fact that I can quickly list processes that are connected to TCP and UDP ports on my system. For example, to check for the current SSH connections on my system I can run lsof and check port 22 (SSH). Immediately I have a good idea of the existing SSH sessions/connections. I can also check to see if the SSH server (sshd daemon) is running and listening (LISTEN) on my AIX partition.   # lsof -i tcp:22 Value of I :77    np:0 COMMAND... [More]

Tags:  rmsock gibson aix netstat lpar wpar lsof chris