Bill Moloney wrote:
for example, doing sequential 1MB writes to a previously written) zvol (simple catenation of 5 FC drives in a JBOD) and writing 2GB of data induced more than 4GB of IO to the drives (with smaller write sizes this ratio gets progressively worse)
How did you measure this? This would imply that rewriting a zvol would be limited at below 50% of disk bandwidth, not something I'm seeing at all. - Bart -- Bart Smaalders Solaris Kernel Performance [EMAIL PROTECTED] http://blogs.sun.com/barts _______________________________________________ zfs-discuss mailing list zfs-discuss@opensolaris.org http://mail.opensolaris.org/mailman/listinfo/zfs-discuss