-----Original Message----- From: linux-btrfs-ow...@vger.kernel.org [mailto:linux-btrfs-ow...@vger.kernel.org] On Behalf Of Hans van Kranenburg Sent: Sunday, 9 April 2017 6:19 AM To: linux-btrfs <linux-btrfs@vger.kernel.org> Subject: About free space fragmentation, metadata write amplification and (no)ssd
> So... today a real life story / btrfs use case example from the trenches at > work... Snip!! Great read. I do the same thing for backups on a much smaller scale and it works brilliantly. Two 4T drives in btrfs raid1. I will mention that I recently setup caching using LLVM (1 x 300G ssd for each 4T drive), and it's extraordinary how much of a difference it makes. Especially when running deduplication. If it's feasible perhaps you could try it with a nvme drive. Paul.
