feat(block-storage): add volume types comparison table (#4523)

Author: nerda-codes

faq/blockstorage.mdx

@@ -5,7 +5,7 @@ meta:
 content:
   h1: Block Storage
 dates:
-  validation: 2025-01-07
+  validation: 2025-03-03
 category: storage
 productIcon: BlockStorageProductIcon
 ---
@@ -24,6 +24,20 @@ Block Storage allows you to create bigger volumes and those volumes are persiste
 | **Latency**        | Average                           | Local NVMe                                                                                                     |
 | **Volume size**    | Max 10 TB/volume                  | Up to 600 GB (GP1-XL)                                                                                          |
 
+## What is the difference between Block Storage volume types?
+
+| Volume type                   | IOPS | Underlying hardware         | Latency         | Max volume size | Recommended use cases | Availability & resilience |
+|-----------------------------------|----------|--------------------------------|---------------------|----------------------|-------------------------|----------------------------|
+| `b_ssd` (Block Storage 5K legacy) | 5,000    | Legacy SSDs                    | High              | Up to 10 TB          | General-purpose workloads that do not demand high IOPS or low latency | Data is replicated three times across multiple disks for high availability and integrity |
+| `sbs_5k` (Block Low Latency 5K)   | 5,000    | Modern NVMe disks               | Low                 | 5 GB to 10 TB        | Development environments, web servers, and applications needing consistent performance | 99.99% SLA, triple-replicated data to safeguard against hardware failures |
+| `sbs_15k` (Block Low Latency 15K) | 15,000   | Modern NVMe disks               | Very low           | 5 GB to 10 TB        | High-performance databases, transactional applications, and I/O-intensive workloads | 99.99% SLA, triple-replicated data to safeguard against hardware failures |
+
+You can attach a maximum of 16 volumes (including the mandatory boot volume) to a single Instance.
+
+<Message type="tip">
+  Refer to the [dedicated documentation](/block-storage/reference-content/differences-between-5kiops-volumes/) for more information on the differences between Block Storage 5K legacy volumes and Block Storage Low Latency 5K volumes.
+</Message>
+
 ## What are the performances expected from a block volume?
 
 Block Storage offers 5,000 input/output operations per second (IOPS) through powerful SSDs.

pages/block-storage/reference-content/advantages-migrating-to-sbs.mdx

@@ -7,7 +7,7 @@ content:
   paragraph: Learn the key advantages of migrating to the Block Storage API for managing your Block Storage volumes and snapshots.
 tags: volumes block-storage 5kiops 10kiops sbs low-latency migration
 dates:
-  validation: 2025-01-14
+  validation: 2025-03-03
   posted: 2025-01-14
 categories:
   - storage
@@ -76,6 +76,20 @@ The Block Storage API supports a broader range of storage classes, including:
   - **Performance**: Enhanced performance with up to 5K IOPS (SBS 5K) and 15K IOPS (SBS 15K).
   - **Latency**: Lower latency, ideal for workloads demanding rapid and reliable data access.
 
+### Comparison of Block Storage volume types
+
+| Volume type                   | IOPS | Underlying hardware         | Latency         | Max volume size | Recommended use cases | Availability & resilience |
+|-----------------------------------|----------|--------------------------------|---------------------|----------------------|-------------------------|----------------------------|
+| `b_ssd` (Block Storage 5K legacy) | 5,000    | Legacy SSDs                    | High              | Up to 10 TB          | General-purpose workloads that do not demand high IOPS or low latency | Data is replicated three times across multiple disks for high availability and integrity |
+| `sbs_5k` (Block Low Latency 5K)   | 5,000    | Modern NVMe disks               | Low                 | 5 GB to 10 TB        | Development environments, web servers, and applications needing consistent performance | 99.99% SLA, triple-replicated data to safeguard against hardware failures |
+| `sbs_15k` (Block Low Latency 15K) | 15,000   | Modern NVMe disks               | Very low           | 5 GB to 10 TB        | High-performance databases, transactional applications, and I/O-intensive workloads | 99.99% SLA, triple-replicated data to safeguard against hardware failures |
+
+You can attach a maximum of 16 volumes (including the mandatory boot volume) to a single Instance.
+
+<Message type="tip">
+  Refer to the [dedicated documentation](/block-storage/reference-content/differences-between-5kiops-volumes/) for more information on the differences between Block Storage 5K legacy volumes and Block Storage Low Latency 5K volumes.
+</Message>
+
 ## Why transition to the Block Storage API?
 
 By transitioning to the Block Storage API, you align with Scaleway's consolidated storage management approach and gain access to advanced storage features and flexibility. While migrating to the Block Storage API does not inherently change the performance of BSSD volumes, you benefit from: