Block storage · AWS vs Google Cloud
Amazon EBS Multi-Attach vs Disk sharing (multi-writer and read-only)
EBS Multi-Attach maps to disk sharing in multi-writer mode (or read-only mode) across several instances.
Side-by-side comparison
| Aspect | Amazon Web Services | Google Cloud |
|---|---|---|
| Service | Amazon EBS Multi-Attach | Disk sharing (multi-writer and read-only) |
| Lifecycle | Generally available | Generally available |
| What it is | Attach one io1 or io2 volume to up to 16 Nitro instances in the same AZ. Applications must coordinate writes (a cluster-aware file system or application). Windows supports io2 only. | Attach one disk to several instances in read-only mode or multi-writer mode. |
| Pricing model | No extra charge beyond io1 or io2 volume pricing. | Billed per GB-month of provisioned capacity; Hyperdisk also bills provisioned IOPS and throughput. Rates vary by disk type and region. |
| Docs | Amazon EBS Multi-Attach docs | Disk sharing (multi-writer and read-only) docs |
| Pricing page | Amazon EBS Multi-Attach pricing | — |
Key differences
- Multi-writer support depends on the disk type and needs a cluster-aware file system or application, as with Multi-Attach.
Pricing summary
Pricing models only. No prices are quoted because they change by region and over time.
- AWS
- No extra charge beyond io1 or io2 volume pricing. Amazon EBS Multi-Attach pricing →
- GCP
- Billed per GB-month of provisioned capacity; Hyperdisk also bills provisioned IOPS and throughput. Rates vary by disk type and region.
And on Azure?
Direct match Azure's equivalent is Azure shared disks. AWS vs Azure comparison →
FAQ
What is the Google Cloud equivalent of Amazon EBS Multi-Attach?
EBS Multi-Attach maps to disk sharing in multi-writer mode (or read-only mode) across several instances.
How does pricing compare between Amazon EBS Multi-Attach and Disk sharing (multi-writer and read-only)?
AWS: No extra charge beyond io1 or io2 volume pricing. Google Cloud: Billed per GB-month of provisioned capacity; Hyperdisk also bills provisioned IOPS and throughput. Rates vary by disk type and region. Check the official pricing pages for current rates.
What is the Azure equivalent?
Azure shared disks (direct match). EBS Multi-Attach maps to Azure shared disks.