I'm exploring block storage solutions for blockchain applications that require high IOPS, and I've heard that the io2 volume type might be the best option since it allows you to essentially purchase performance. Has anyone had experience using io2 for blockchain workloads? What costs should I expect? Additionally, are there any recommendations that might outperform io2?
5 Answers
From an IOPS perspective, instance stores are the fastest, but they don’t retain data through shutdowns. EBS is your next best option—while it might not hit the highest IOPS, it’s reliable and keeps your data intact.
If you want to avoid instance storage, consider using a RAID 0 setup with multiple io2 disks. That might give you the performance boost you’re looking for.
Also, keep in mind that IOPS aren't everything. Think about what your application actually needs in terms of performance and durability.
It really depends on your actual IOPS needs. If you can share those specific numbers, it might help narrow down the best option for you.
If you're aiming for top performance, look into what's called 'instance attached storage' on AWS. This option provides super-fast performance since it's basically an NVMe drive located right on the same instance. Just a heads-up though, if you go this route, remember that you can't shut these instances down without losing data on the disk; you'll need to restart them instead.
That's a crucial point! Instance stores can be great for speed, but the data loss risk is real, so plan accordingly.
Exactly! EBS offers that peace of mind with persistence, which is really important if your application can’t afford to lose data.