Unix iTOps Tube

Monday, May 14, 2012

Mailbox server performance issue

Hi.



my company's mailbox server has severe performance issue on the days while full backup is running. There is huge I/O in another "mail replication process" for standby servers ( which runs all the time, every 15 mins. ).



specs of servers :- RHEL5.5 , kernel -2.6.18-53.1.6.el5 , 8 core Intel Xeon 2.66 GHz, 32 GB RAM.24 GB VM.



strangely I see



swappiness =0 ( proposing it to be 50 )



HugePages_Total: 0 ( proposing it to be 100 )

HugePages_Free: 0

HugePages_Rsvd: 0

Hugepagesize: 2048 kB ( proposing it to be 4096 )





-- proposing to configure memlock for mailbox process as well .



Before proposing to higher management for change in these settings to an optimized value, I wanted to confirm and take suggestions about this issue and few other parameters which could be adjusted.




No comments:

Post a Comment