The copy operation will make all the disks start seeking at the same time and will make your CPU activity jump to a significant percentage to compute the ZFS checksum and RAIDZ parity. I think you could be overloading your PSU because of the sudden increase in power consumption...
However if you are *not* using SATA staggered spin-up, then the above theory is unlikely because spinning up consumes much more power than when seeking. So, in a sense, a successful boot proves your PSU is powerful enough. Trying reproducing the problem by copying data on a smaller number of disks. You tried 2 and 16. Try 8. -marc _______________________________________________ zfs-discuss mailing list zfs-discuss@opensolaris.org http://mail.opensolaris.org/mailman/listinfo/zfs-discuss