Provision and Optimize Storage Pools and Virtual Disks
Storage pools group multiple physical disks together so the system can use them as one large storage space. From these pools, you create virtual disks that behave like regular drives but offer special features like redundancy or better performance. In hybrid Windows Server environments, you need to balance data availability, speed, and fault tolerance when setting these up.
Low Storage Latency for Database Systems
Database Management Systems (DBMS) need fast storage because even small delays can slow down important operations like writing transaction logs or recovering from crashes. For critical database workloads, you should use Azure premium storage, Ultra disks, or Azure NetApp Files to ensure the storage responds quickly enough. Choosing slower storage for a database can cause the entire application to perform poorly, even if the database keeps most data in memory.
Selecting Storage Types
When configuring storage for workloads, you must consider the type of storage that fits the application's needs. Each Azure storage type has different performance limits for input/output operations per second (IOPS) and throughput, which are tied to the virtual machine size you select. You should match the storage performance to what the application requires and avoid configurations that exceed the virtual machine's throughput limits, because this creates a bottleneck that slows everything down.
Disk Striping vs. Data Partitioning
Disk striping spreads data across multiple physical disks so the system can read and write faster by using all the disks at once. Azure provides tools like LVM and MDADM to create striped volumes, but this adds complexity to management. An alternative is data partitioning, where the application itself divides data across multiple disks, which SAP HANA does automatically—this achieves similar performance without requiring manual stripe management.
Kubernetes Storage Management
In Kubernetes environments, storage can be provisioned in two ways. Static provisioning means an administrator creates storage resources like SMB or NFS shares ahead of time and manually manages them. Dynamic provisioning uses a StorageClass to automatically create storage when applications need it, with a provisioner handling the actual storage creation. Applications request storage through PersistentVolumeClaims (PVC), which ask for a specific amount of storage with certain access permissions, and Kubernetes matches these claims to available PersistentVolumes (PV).
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