8/31/2023 0 Comments Iops aws pricing![]() ![]() ReadĪs expected, all three volume types delivered 3,000 IOPS (1,500 read IOPS and 1,500 write IOPS) over 2 hours. fio -directory=/mnt/gp3 -name gp3 -direct=1 -rw=randrw -bs=16k -size=1G -numjobs=16 -time_based -runtime=7200 -group_reporting -norandommapįio -directory=/mnt/gp2 -name gp2 -direct=1 -rw=randrw -bs=16k -size=1G -numjobs=16 -time_based -runtime=7200 -group_reporting -norandommapįio -directory=/mnt/io2 -name io2 -direct=1 -rw=randrw -bs=16k -size=1G -numjobs=16 -time_based -runtime=7200 -group_reporting -norandommap I’ve used fio to measure the I/O performance with the following commands. I did my test on Jan 11, 2021, with the following setup. That’s why I decided to benchmark the three different volume types. For example, Silas has written down his experiences with gp3 and an Elasticsearch cluster. Some AWS customers are complaining about degraded performance when switching from gp2 to gp3. Check out Amazon EBS volume types to learn more. In summary, the previous generation is more expensive, less durable, and comes with lower maximum bandwidth. I decided not to discuss the previous generation io1 in this blog post. However, both volume types do not provide more than 1,000 MiB/s bandwidth. That’s four times the maximum IOPS of a gp3 volume. Maximum throughput: an io2 volume supports up to 64,000 IOPS and 1,000 MiB/s.There is no such guarantee for gp3 volumes. SLA on throughput: an io2 volume promises to deliver the provisioned performance 99.9 percent of the time.But, only 1 of 100,0000 io2 volumes fail every year. In other words, 1 of 500 gp3 volumes fails every year. That’s a huge difference compared to gp3 with an annual failure rate of 0.2%. Durability: the annual failure rate of an io2 volume is 0.001%.So what is the big difference between io2 and gp3? Volume SizeĪs a rule of thumb, an io2 volume costs 3 to 4 times as much as a gp3 volume. However, an io2 volume is much more expensive than a gp3 volume, as shown in the following example. The Relational Database Service (RDS) does not support io2 volumes yet. Again, AWS charges by size and provisioned IOPS.īy the way, AWS announced io2 in August 2020. When creating an io2 volume, you specify the size as well as the provisioned IOPS. The io2 volume type works similar to gp3. While AWS says gp3 delivers up to 20% lower price-point over gp2, in reality the price advantage is somewhere between 7 and 20% depending on IOPS and throughput required in addition to baseline. 3,000 IOPS and 125 MB/s are included for free for every volume. I want to highlight the maximum bandwidth of 1,000 MiB/s, four times as much as gp2.ĪWS charges by size, IOPS, and bandwidth. Provisioned throughput was the unique selling point of io2 volumes, which I present next.Īn gp3 volume supports up to 16,000 IOPS and 1,000 MiB/s. Surprisingly, it is possible to increase the maximum throughput of a gp3 volume by provisioning additional IOPS and bandwidth. The gp3 volume comes with only 125 MB/s by default. So the baseline performance of a gp3 volume is the same as the burst capacity of a gp2 volume.īe careful a gp2 volume larger than 333 GiB provides a maximum bandwidth of 250 MiB/s. Every volume comes with a baseline performance of 3,000 IOPS and 125 MB/s regardless of the size. ![]() The latest generation of General Purpose SSD volumes is different. I’ve seen many infrastructures fail because the performance was fine during testing but degraded significantly an hour after the go-live in production. Volumes smaller than 1,000 GiB can burst up to 3,000 IOPS for a short period per day. Baseline Throughput ( IOPS) = MIN( Volume Size ( GiB) * 3, 3000 ) The volume size determines the price as well as the baseline throughput (IOPS and bandwidth). With this blog post, I compare gp2, gp3, and io2 volumes and guide how to choose the volume type that fits best a specific scenario.ĭo you prefer listening to a podcast episode over reading a blog post? Here you go! gp2 (General Purpose SSD)Īt first sight, the gp2 volume type is easy to use. So now there are three volume types based on SSDs. In December 2020, AWS announced another volume type called General Purpose SSD (gp3). The virtual machine accesses the persistent storage via the network. Elastic Block Storage (EBS) provides solid state drives (SSD) and hard disk drives (HDD) for EC2 instances. ![]()
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