Monday, December 8, 2008

Reduce vxfsd usage

If you're seeing high usage of vxfsd on 11iv2 (I don't know for 11iv3), chances are it's wasting time managing the vxfs inode cache. Depending on your situation, setting a static cache can help. I've been doing this for years on a particular system with good results, had to do it again this morning, so I thought I'd post about this. The procedure is documented here:

Simply put, you have to do this:
# kctune vxfs_ifree_timelag=-1

Don't credit me to finding this one out. I owe it to Doug Grumann and Stepehen Ciullo.

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