On 01/22/2013 05:00 PM, casper....@oracle.com wrote:
>> Some vendors call this (and thins like it) "Thin Provisioning", I'd say 
>> it is more "accurate communication between 'disk' and filesystem" about 
>> in use blocks.
> In some cases, users of disks are charged by bytes in use; when not using
> SCSI UNMAP, a set of disks used for a zpool will in the end be charged for
> the whole reservation; this becomes costly when your standard usage is 
> much less than your peak usage.
> Thin provisioning can now be used for zpools as long as the underlying 
> LUNs have support for SCSI UNMAP

Looks like an interesting technical solution to a political problem :D


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