Hello Mike, Saturday, April 12, 2008, 4:17:30 PM, you wrote:
EM> Could someone kindly provide some details on using a zvol in sparse-mode? EM> Wouldn't the COW nature of zfs (assuming COW still applies on EM> ZVOLS) quickly erode the sparse nature of the zvol? COW does apply to zvols. If you once used entire zvol logical space physical utilization will match logical and you won't be able to re-gain it (unless you re-create zvol). So yes, it is not as good as with file systems, but it can't be any better and is no worse than other thin provisioning offered by arrays these days. If you have well controlled environment it should work good enough. EM> Would sparse data-presentation only work by delegating a part of EM> a zpool to a zone, but that's at the file-level, not raw? It is not required - you create X size zvol which is sparse and it will allocate physical storage only when some data is written. Zones have nothing to do here. -- Best regards, Robert Milkowski mailto:[EMAIL PROTECTED] http://milek.blogspot.com _______________________________________________ zfs-discuss mailing list zfs-discuss@opensolaris.org http://mail.opensolaris.org/mailman/listinfo/zfs-discuss
