sendmail performance

From: Warren Liang (warren.liang@cox.net)
Date: Wed Oct 10 2007 - 12:55:51 EDT


Sendmail is running on Solaris 2.6 box. It has many sendmail processes up and
running, in fact, sleeping. When those sendmail processes are up, boxbs
iowait is high. Iostat shows high io rate on device c0t0d0s5, where mqueue
locates.
Sendmail performs badly. C0t0d0s5 has nothing but mqueue. Would it be helpful
if I move mqueue to another physical disk? Such as c1t0d0s5. This partition
holds the entire disk.
Thanks in advance.
Warren
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