Yes, I would be interested to hear more on the findings. Let us know once you have them.
On Nov 1, 2017 13:10, "Shyam Ranganathan" <srangana@xxxxxxxxxx> wrote:
On 10/31/2017 08:36 PM, Ben Turner wrote:
* Erasure coded volumes with sharding - seen as a good fit for VM diskI am working on this with a customer, we have been able to do 400-500 MB / sec writes! Normally things max out at ~150-250. The trick is to use multiple files, create the lvm stack and use native LVM striping. We have found that 4-6 files seems to give the best perf on our setup. I don't think we are using sharding on the EC vols, just multiple files and LVM striping. Sharding may be able to avoid the LVM striping, but I bet dollars to doughnuts you won't see this level of perf:) I am working on a blog post for RHHI and RHEV + RHS performance where I am able to in some cases get 2x+ the performance out of VMs / VM storage. I'd be happy to share my data / findings.
storage
Ben, we would like to hear more, so please do share your thoughts further. There are a fair number of users in the community who have this use-case and may have some interesting questions around the proposed method.
Shyam
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