zpool - low speed write

[Alex V. Petrov]

interesting results:

From single-UDF-disk to pool:
$ dd if=petrovs-disk1.iso of=/tank/petrovs-disk1.iso bs=1M
3545+1 records in
3545+1 records out
3718002688 bytes transferred in 438.770195 secs (8473690 bytes/sec)

From single-UDF-disk to null:
$ dd if=petrovs-disk1.iso of=/dev/null bs=1M
3545+1 records in
3545+1 records out
3718002688 bytes transferred in 83.304575 secs (44631435 bytes/sec)
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Alex V. Petrov