| name | shared-disks |
| description | Attach a single managed disk to multiple VMs (clustered apps) |
Shared Disks
When to use this skill
- SQL FCI, SOFS, SAP ASCS clusters
- Linux Pacemaker shared storage
Key concepts
- Available on Premium SSD, Premium v2, Ultra.
maxShares set at create — VMs must coordinate via SCSI-3 PR.
- Not a substitute for a clustered filesystem — guest OS handles locking.
Azure CLI examples
az disk create -g rg -n cluster-disk --size-gb 1024 --sku Premium_LRS --max-shares 2
Common pitfalls
- Mounting from multiple VMs without a cluster manager → data corruption.
References
Validation-first: verify every Azure fact against the Microsoft Learn MCP server (cite the Learn URL); Learn overrides built-in knowledge. If no Learn MCP server is configured, flag the answer ⚠️ unverified and mark specs as indicative. Analysis only — verify against Microsoft documentation before applying.