Update on Cache tier

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I’m sure everyone’s felt the pain of the disappearing cache tier. It’s amazing the impact that having file system metadata on SSDs can have versus keeping it on an EC pool. Also with the SSDs out we also lost around 120TB of spinning disk layer 3 cache so a LOT more data leaves OVH’s network and lands on ours without these in place. I wanted to provide a bit of an update on where we are.

The bad hardware has been swapped and we’re hoping to re-enable caching tomorrow morning. This will be transparent to users but as data is populated back into the cache performance should climb back to where we were before everything went bonkers.

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