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chore(kb/aws/ebs): add pricing example

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Michele Cereda
2024-11-17 03:59:01 +01:00
parent ac3554b551
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2 changed files with 47 additions and 13 deletions
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47
knowledge base/cloud computing/aws/ebs.md
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@@ -42,22 +42,47 @@ The volumes' filesystem is **not** automatically extended during the change in s
[extended manually][Extend the file system after resizing an EBS volume] to take advantage of the change in size.<br/>
Linux-based instances should™ be able to take care of that automatically after reboot.
[Pricing][amazon ebs pricing]
Volume costs depend on its type, provisioned size, IOPS and throughput.<br/>
Volumes are billed per-second increments, with a 60-seconds minimum period.<br/>
Refer [Amazon EBS pricing]
## Volume types
Refer [Amazon EBS volume types].
| | `gp3` | `gp2` | `io2` | `io1` | `st1` | `sc1` |
| ------------------- | -------------- | -------------- | -------------- | -------------- | ---------------- | ---------------- |
| Class | SSD | SSD | SSD | SSD | HDD | HDD |
| Annual failure rate | 0.1% - 0.2% | 0.1% - 0.2% | 0.001% | 0.1% - 0.2% | 0.1% - 0.2% | 0.1% - 0.2% |
| Size | 1 GiB - 16 TiB | 1 GiB - 16 TiB | 4 GiB - 64 TiB | 4 GiB - 16 TiB | 125 GiB - 16 TiB | 125 GiB - 16 TiB |
| Max IOPS | 16,000 | 16,000 | 256,000 | 64,000 | 500 | 250 |
| Max throughput | 1,000 MiB/s | 250 MiB/s | 4,000 MiB/s | 1,000 MiB/s | 500 MiB/s | 250 MiB/s |
| Multi-attach | No | No | Yes | Yes | No | No |
| NVMe reservations | No | No | Yes | No | No | No |
| Bootable | Yes | Yes | Yes | Yes | No | No |
| | `gp3` | `gp2` | `io2` | `io1` | `st1` | `sc1` |
| ------------------- | ------------------------------------------------ | -------------- | ----------------- | ----------------- | ---------------- | ---------------- |
| Class | SSD | SSD | SSD | SSD | HDD | HDD |
| Annual failure rate | 0.1% - 0.2% | 0.1% - 0.2% | 0.001% | 0.1% - 0.2% | 0.1% - 0.2% | 0.1% - 0.2% |
| Size | 1 GiB - 16 TiB | 1 GiB - 16 TiB | 4 GiB - 64 TiB | 4 GiB - 16 TiB | 125 GiB - 16 TiB | 125 GiB - 16 TiB |
| Max IOPS | 16,000 | 16,000 | 256,000 | 64,000 | 500 | 250 |
| Max throughput | 1,000 MiB/s | 250 MiB/s | 4,000 MiB/s | 1,000 MiB/s | 500 MiB/s | 250 MiB/s |
| Multi-attach | No | No | Yes | Yes | No | No |
| NVMe reservations | No | No | Yes | No | No | No |
| Bootable | Yes | Yes | Yes | Yes | No | No |
| Pricing | Per-GB + Per-IOPS over 3,000 + Per-MB/s over 125 | Per-GB | Per-GB + Per-IOPS | Per-GB + Per-IOPS | Per-GB | Per-GB |
Billing is per-second increments, with a 60-seconds minimum period.
Pricing examples:
<details style="padding: 0 0 1em 1em; ">
<summary><code>gp3</code>, 200 GB, 3000 IOPS, 512 MiB/s, for 69h 54m 34s in a 30d month in Ireland</summary>
Regional price (storage): $\$0.088/GB/month$<br/>
Regional price (IOPS): $\$0.0055/IOPS/month$ over 3000<br/>
Regional price (throughput): $\$0.044/MB/s/month$ over 125
Seconds in a 30d month: $60s * 60m * 24h * 30d = 2592000s$<br/>
Seconds of actual usage: $34s + (60s * 54m) + (60s * 60m * 69h) = 34 + 3240 + 248400 = 251674s$
Storage costs: $200GB*\$0.088/GB*(251674s/2592000s) = 200*\$0.088*0.09709645062 = \$1.71$<br/>
IOPS costs: $(3000-3000)IOPS*\$0.0055/IOPS*(251674s/2592000s) = 0*\$0.0055*0.09709645062 = \$0.00$<br/>
Throughput costs: $(512-125)MB/s*\$0.044/MB/s*(251674s/2592000s) = 387*\$0.044*0.09709645062 = \$1.66$
Total: $\$1.71+\$0.00+\$1.66 = \$3.37$
</details>
## Snapshots

13
knowledge base/markdown.md
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@@ -35,7 +35,8 @@ private void index(){
## TODO lists
Use `[ ]` after the bullet point or numbered list character to switch them for an empty ballot box, and `[x]` for a checked one.
Use `[ ]` after the bullet point or numbered list character to switch them for an empty ballot box, and `[x]` for a
checked one.
1. [ ] 1
1. [ ] 2
@@ -83,12 +84,20 @@ See also [The magical Markdown I bet you don't know] and [slaise/High-level-Mark
## Math
Inline expressions: surround the expression with `$`.
```md
$\sum_{n=1}^{10} n^2$
$$\sum_{n=1}^{10} n^2$$
```
$\sum_{n=1}^{10} n^2$
Block expressions: surround the expression with `$$`.
```md
$$\sum_{n=1}^{10} n^2$$
```
$$\sum_{n=1}^{10} n^2$$
## Alerts