RFC: Suggesting ZFS "best practices" in FreeBSD

Jean-Yves Moulin jym at baaz.fr
Wed Jan 23 15:16:58 UTC 2013


Hi,


On 22 Jan 2013, at 15:33 , Scott Long <scottl at samsco.org> wrote:

> Agree 200%.  Despite the best effort of sales and marketing people, RAID cards do not make good HBAs.  At best they add latency.  At worst, they add a lot of latency and extra failure modes.


But what about battery-backed cache RAID card ? They offer a non-volatile cache that improves writes. And this cache is safe because of the battery. These feature doesn't exist on bare disks.


best,
jym


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