Azure AZ-120 flashcards

32 cards. Read the term and the definition here. The deck at the top of this page is optional.

SAP Note 1928533

SAP support note listing certified Azure VM types, OS versions, and SAP kernel releases for SAP NetWeaver and HANA on Azure; it is the primary sizing and support reference.

Azure Migrate appliance

Lightweight collector deployed on-premises that discovers SAP servers, gathers configuration and performance data, and sends it to Azure Migrate for assessment and sizing.

HANA Large Instances

Bare-metal Azure offering certified for SAP HANA, supporting large single-node and scale-out configurations up to multi-terabyte memory; provisioned through a support request rather than the standard VM API.

SWPM system copy

SAP Software Provisioning Manager tool used to perform homogeneous or heterogeneous system copies, including migrations of an on-premises SAP system into Azure VMs.

ASR application-consistent snapshot

Azure Site Recovery feature that runs pre and post scripts to quiesce the SAP database before replication, producing a crash-consistent or application-consistent recovery point.

ExpressRoute FastPath

ExpressRoute feature that bypasses the virtual network gateway for data-plane traffic, reducing latency and increasing throughput for large SAP database migrations over hybrid connectivity.

Hub-and-spoke topology

Azure network design where a central hub VNet hosts shared services such as gateways and firewalls, and SAP spoke VNets peer to the hub for controlled connectivity.

Write Accelerator

Azure VM disk feature that improves write latency for the HANA log volume on M-series VMs; it is required for certain HANA-certified configurations using Premium SSD.

Accelerated networking

Azure VM capability using SR-IOV to reduce network latency and CPU overhead; it is mandatory for SAP HANA-certified VM configurations and supported on most SAP VM sizes.

Azure NetApp Files

Enterprise-grade NFS/SMB file service on Azure used for SAP shared directories such as /sapmnt and /usr/sap/trans, and for HANA data and log volumes in certified configurations.

Proximity placement group

Azure grouping construct that co-locates VMs in the same datacenter to minimize network latency; used for SAP ASCS/ERS and database tiers requiring sub-millisecond communication.

SAP Quick Sizer

SAP tool that converts business workload requirements into SAPS values, which are then mapped to Azure VM sizes using certified SAPS ratings per VM type.

SAPLOCALHOST

SAP profile parameter that defines the local hostname used by an SAP instance; on Azure it must resolve correctly via private DNS for cluster and app server communication.

NSG and UDR

Network security groups filter traffic between SAP subnets, and user-defined routes force traffic through the hub firewall; both are required in a hub-and-spoke SAP design.

Pacemaker SAPHana resource agent

Cluster resource agent that manages SAP HANA System Replication in a Pacemaker cluster, performing takeover and failover between primary and secondary HANA nodes on Azure.

fence_azure_arm

Azure STONITH fencing agent used by Pacemaker clusters to isolate a failed node via the Azure Resource Manager API, preventing split-brain in SAP HA configurations.

Azure Standard Load Balancer HA ports

Load balancer configuration using HA ports and a floating IP that allows SAP ASCS/ERS Pacemaker clusters to direct traffic to the active node without per-port rules.

HANA System Replication SYNC

HSR mode where the primary waits for the secondary to acknowledge log writes before committing, giving zero data loss within a region but adding latency.

HANA System Replication ASYNC

HSR mode where the primary does not wait for secondary acknowledgment, providing low-latency writes and a nonzero RPO suitable for cross-region disaster recovery.

Azure paired regions

Two Azure regions within the same geography that are paired for replication and prioritized recovery; they are the standard DR target for cross-region SAP HANA replication.

ASR recovery plan

Azure Site Recovery construct that orchestrates the failover order of SAP tiers, starting the database, then ASCS/ERS, then application servers during a DR event.

SBD STONITH

Storage-based death fencing mechanism using a shared disk to isolate a failed Pacemaker node; on Azure it is often replaced by the Azure fence agent for two-node SAP clusters.

Custom probe port

Load balancer health probe port managed by the Pacemaker cluster (for example 62500) that reflects the active node, used instead of probing the SAP application port directly.

RTO and RPO

Recovery time objective is the maximum acceptable downtime, and recovery point objective is the maximum acceptable data loss; HSR SYNC targets RPO near zero within a region.

Azure Backup Backint

Azure Backup plugin that integrates with SAP HANA's Backint interface, enabling full, differential, and log backups of HANA databases directly to an Azure Recovery Services vault.

Azure Monitor Agent

Guest agent that collects performance and event data from SAP VMs and sends it to Azure Monitor Logs and Metrics for alerting and dashboards.

Azure Update Manager

Azure service that schedules and applies OS patches to SAP VMs, supporting maintenance windows and compliance reporting for Windows and Linux guests.

Azure Service Health

Azure portal service that reports platform incidents, planned maintenance, and advisories affecting SAP subscriptions; alerts can be routed to operations teams.

Azure Hybrid Benefit

Licensing benefit that lets existing Windows Server and SQL Server licenses with Software Assurance be applied to Azure VMs, reducing SAP infrastructure cost.

Reserved instances

Azure commitment-based pricing for one or three years on VM families, reducing SAP compute cost when workloads run continuously; sizing must match the certified VM family.

HANA log backup interval

Frequency at which SAP HANA writes log backups; Azure Backup supports intervals as low as 15 minutes, which directly determines the database RPO.

ASR test failover

Non-disruptive Site Recovery operation that brings up SAP VMs in an isolated Azure VNet to validate DR readiness without affecting production replication.