Forum Discussion

Level 4

7 years ago

Solved

large number of resource

hi,

if i have a large number of mnt type resources then there can be the case when certain resources are not monitored?

in this case the group that contain those mnt resoure will failover?

tnx

snockles
Level 3
7 years ago
All enabled resources will always be monitored, and IMF was introduced to make that monitoring more responsive and efficient.
The VCS Admin Guide and Bundled Agent Reference Guide will tell you everything you need to know.
frankgfan
Moderator
7 years ago
there is an agent attribute called NumThreads which can be tuned for large numebr of resource of the same type.
please refer to this technote https://www.veritas.com/support/en_US/article.100004986 titled "How to improve the online/offline/monitor times of VCS resources in large setups by tuning the NumThreads attribute of VCS Agents" for details how to tune NumThreads.
If there are very latge number of Mount resources in one cluster, you should consider to "evenly distribute" the mount resources in multiple service groups running them on multiple nodes, whenever practical.
Furthermore, upgrade VCS to the latest version with the latest RP patch aplied is highly recommended as there were many known issue with old version which were associated with Mount agent in dealing with large number of mounts.
- linuly
  Level 4
  7 years ago
  every agent will be a process with multiple threads coresponding to every resource of that type.right?
  - frankgfan
    Moderator
    7 years ago
    every vcs agent runs as a process which can have up to 10 threads (NumThreads is a user defined attribute with a default value set to 1 or 10 depending on the versions)