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As you add mirrored pairs your data isn't evenly distributed across all stripes is it?
by gaadd33 9y ago
As you add mirrored pairs your data isn't evenly distributed across all stripes is it?
- ioquatix 9y agoThe simple answer to your question is no. The more complex answer is that over time as you write more data, ZFS will re-balance the distribution of data over the available zdevs.
- takeda 9y agoI think the concern is that if you have two disks die it is not a big deal, unless those two disk happen to be of the same pair[1], then most likely all data is lost. [1] if you're not careful, this is actually very likely to happen. If you purchase 2 disks at the same time, and they are under the same usage patterns (which they will be when working in a pair), under the same temperature then they are very likely to die at the same time.