im playing around with a home raidz2 install and i can see this pulsing as well.
The only difference is i have 6 ext usb drives with activity lights on them so i can see whats actually being written to the disk and when :) What i see is about 8 second pauses while data is being sent over the network into what appears to be some sort of in memory cache. Then the cache is flushed to disk and the drives all spring into life, and the network activity dropps down to zero. after a few seconds writing, the drives stop and the whole process begins again. Somethings funny is going on there... -- This message posted from opensolaris.org _______________________________________________ zfs-discuss mailing list zfs-discuss@opensolaris.org http://mail.opensolaris.org/mailman/listinfo/zfs-discuss
