Chapter 2. Kernel

Timeout Value Control

The Red Hat Enterprise Linux 5.11 kernel now includes an option to control the timeout value for I/O error recovery commands. Previously, the retry value was set to 5, which resulted in 90-second timing out messages. Reducing the number of retries allows for a more efficient management of timeout layers.

LSI 12 Gb/s adapters with the MegaRAID SAS driver

LSI MegaRAID SAS 9360/9380 12Gb/s controllers, previously supported as a Technology Preview, are now fully supported in Red Hat Enterprise Linux 5.11.