Justin Stringfellow wrote: >> Raw storage space is cheap. Managing the data is what is expensive. >> > > Not for my customer. Internal accounting means that the storage team gets > paid for each allocated GB on a monthly basis. They have > stacks of IO bandwidth and CPU cycles to spare outside of their daily busy > period. I can't think of a better spend of their time > than a scheduled dedup. >
[donning my managerial accounting hat] It is not a good idea to design systems based upon someone's managerial accounting whims. These are subject to change in illogical ways at unpredictable intervals. This is why managerial accounting can be so much fun for people who want to hide costs. For example, some bright manager decided that they should charge $100/month/port for ethernet drops. So now, instead of having a centralized, managed network with well defined port mappings, every cube has an el-cheapo ethernet switch. Saving money? Not really, but this can be hidden by the accounting. In the interim, I think you will find that if the goal is to reduce the number of bits stored on some "expensive storage," there is more than one way to accomplish that goal. -- richard _______________________________________________ zfs-discuss mailing list zfs-discuss@opensolaris.org http://mail.opensolaris.org/mailman/listinfo/zfs-discuss
