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This steps you through the process of finding the verion of the nvme driver https://docs.aws.amazon.com/AWSEC2/latest/UserGuide/nvme-ebs-volumes.html The general advice on how to find information about drivers is still applicable to other drivers on instances running RHEL too.
In short, if you regularly patch your system with sudo yum update -y then you will keep the drivers at their latest version.
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- asked 7 months ago
asked 3 years ago- AWS OFFICIALUpdated 3 months ago
NOT always. I have a RHEL 7.9 that I buit when RHEL 7.4 was new and I built it OFF of AWS then uploaded it and made it into an AMI so that BOTH the AWS RHEL and my on prem RHEL were 100% the same so the same post scripts and puppet modules I wan on-prem were guaranteed to run the same in AWS, GCS, OCI, or even TOM's Garage cloud. The trouble is AWS makes it VERY difficult to do VERY BASIC tasks like add and maintain drivers. I find myself asking the SAME basic question....
Where's the DRIVERS???
The issue, however is performance has gotten pretty bad to where nearly ANY IO more than what "ls" generated causes IO wait 10+ with it hitting 95 on the T2.medium instance which was NOT the case 1.5 yrs ago!
top - 19:58:23 up 14:02, 1 user, load average: 4.67, 4.71, 5.05 Tasks: 188 total, 1 running, 187 sleeping, 0 stopped, 0 zombie %Cpu(s): 1.8 us, 0.7 sy, 0.0 ni, 0.0 id, 97.8 wa, 0.0 hi, 0.0 si, 0.2 st KiB Mem : 3878644 total, 170572 free, 2465344 used, 1242728 buff/cache KiB Swap: 4718588 total, 4518416 free, 200172 used. 1159748 avail Mem
14239 apache 20 0 915104 71584 2816 S 1.7 1.8 1:05.65 celery 38 root 20 0 0 0 0 S 0.7 0.0 3:11.22 kswapd0 13565 mongodb 20 0 33.2g 109096 10688 S 0.7 2.8 1:45.33 mongod