It’s amazing how slowly a resync happens with Solaris Volumen Manager (SVM). You can dramatically reduce your time to sync up your mirrors with SVM by adding a setting to /etc/system and rebooting.
set md_mirror:md_resync_bufsz = 1024
I’ve tried 2048 (the max) as well, but not as big a gain in speed, so I stick with 1024.
Harmless on “modern” Sun machines. Just don’t try this on your SPARC 20 or it may lock up on you. As long as you have >1GB of RAM you’ll probably be ok.
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Apr 21, 2008 
