Archive for the ‘HPC’ Category

resolved – check backend OHS httpd servers for BIG ip F5 LTM VIP

May 23rd, 2014 Comments off

Assume you want to check the OHS or httpd servers one LTM VIP is routing traffic to. Then here's the steps:

  1. get the ip address of VIP;
  2. log on LTM's BUI. Local traffic-> virtual servers -> virtual server list, search ip
  3. click "edit" below column "resource"
  4. note down default pool
  5. search pool name in local traffic -> virtual servers -> pools -> pool list
  6. click the number below column members. Then you'll find the OHS servers and ports the VIP will route traffic to.


  • To check connections including one specific IP, run below
    • show /sys connection |grep -w <IP>

Common storage multi path Path-Management Software

December 12th, 2013 Comments off
Vendor Path-Management Software URL
Hewlett-Packard AutoPath, SecurePath
Microsoft MPIO
Hitachi Dynamic Link Manager
EMC PowerPath
IBM RDAC, MultiPath Driver
VERITAS Dynamic Multipathing (DMP)