O slideshow foi denunciado.
Utilizamos seu perfil e dados de atividades no LinkedIn para personalizar e exibir anúncios mais relevantes. Altere suas preferências de anúncios quando desejar.
Azure Custom Backup Solution for SAP NetWeaver
Aliter Consulting was engaged by a large business process outsourcer in 2018 to
provide technical SAP consultancy as part ...
Automation Core
• Technology improvements mean computing tasks previously requiring interaction with people, can be fully ...
Availability
• The RTO/RPO for the SAP systems dictated multiple physical locations for the storage of database backups.
D...
COTS backup product support for HANA & ASE databases
• There are few products on the market that support both SAP HANA and...
Availability
Decreasing storage cost trend (long term)
Platform flexibility (future cost reduction possibilities)
In-house...
COTS backup product support for HANA & ASE databases
&
Other databases automatically supported (including non-SAP)
Perform...
Multi-service technical layers
• Each component serves more than one purpose in the landscape.
Azure Storage Service as ba...
Azure Subscription(s)
Enterprise
Scheduler
Target DB Server
DB
Storage
Account
Storage
Account
Storage
Account
Storage
Acc...
Microsoft
Azure (IaaS)
Transfer Tool
(e.g. blobxfer)
Microsoft Azure Storage Account(s)
Database files
traces / logs / con...
Azure Subscription(s)
SAP Business Process Automation 9.0
Target DB Server
HostAgent
Custom Process
Definition
Backup Job
...
• SAP BPA scheduled job chains call custom BPA Process Definition.
• The custom Process Definition makes a SOAP call over ...
Primary Region
Azure Subscription(s)
SAP BPA
Virtual
Machine
PRD Target
DB Server
Virtual
Machine
/backups
Secondary
Regio...
Azure Subscription(s)
SAP Business Process Automation 9.0
Target DB Server
HostAgent
Custom Process
Definition
Xfer Job
De...
• Within an Azure region, DB backup jobs are controlled by SAP BPA which
executes custom HostAgent operations to initiate ...
• x1 SAP HostAgent installed on every database server (including non-SAP).
• HostAgent to be setup for auto-update (automa...
• x2 Microsoft Azure Subscriptions (1x Prod, 1x DR) depends on number of IaaS
servers (CPUs).
• xn Microsoft Azure Storage...
Azure Subscription(s)
Target DB Server
Script
/backups
Xfer
Tool
PRD
End Point
Windows Jump
Box with Storage
Explorer
Manu...
• Operator manually obtains restore file list.
• Operator feeds custom restore script with file list.
• Custom restore scr...
Azure Subscription(s)
Target DB Server
Script
/backups
Xfer
Tool
PRD
End Point
BackupSet1
BackupSet2
BackupSet3
Custom Bac...
• Operator initiates custom restore script.
• Operator selects required backup set (based on date/time stamp).
• Custom re...
Azure Subscription(s)
Target DB Server
/backups
Xfer
Tool
PRD
End Point
Target
DB
Trace
.ini
.cfg
.log
Restore Operation P...
• Operator restore of files using xfer tool to pull down required files from Azure
Storage Account.
• Operator instigates ...
Primary Region
Azure Subscription(s)
PRD Target
DB Server
Virtual
Machine
/backups
Secondary Region (DR)
Azure Subscriptio...
• Primary Region failure.
• Secondary Region becomes primary.
• Infrastructure restored.
• Access granted to RA-GRS Storag...
Microsoft Docs:
• Reference architecture: https://docs.microsoft.com/en-us/azure/architecture/reference-
architectures/sap...
Thank-You
Próximos SlideShares
Carregando em…5
×

Azure Custom Backup Solution for SAP NetWeaver

One of our Senior SAP Basis Consultants, Darryl Griffiths, has put together a SlideShare to share his knowledge of SAP NetWeaver. Take a look!

  • Seja o primeiro a comentar

Azure Custom Backup Solution for SAP NetWeaver

  1. 1. Azure Custom Backup Solution for SAP NetWeaver
  2. 2. Aliter Consulting was engaged by a large business process outsourcer in 2018 to provide technical SAP consultancy as part of a migration from on-premise to the cloud. As part of this engagement, a solution was required for the backup of database systems related to the SAP landscape, hosted within the Microsoft Azure cloud. The design captured within this presentation shows the basics of how we were able to conceptualise and deliver a custom SAP backup solution that fitted the needs of our client. Custom Backup in Azure
  3. 3. Automation Core • Technology improvements mean computing tasks previously requiring interaction with people, can be fully automated. • Automation brings repeatability, reduced error rates, easy scalability of service provision. Platform Agnostic • Future interoperability and open standards will mean businesses can swap easily between cloud providers. • It is key that solutions are designed to operate in such a platform agnostic manner outside the bounds of normal technical architecture design (i.e. no fixed O/S choices or fixed DB platforms). Established Technological Principals • Solutions today, should be built using already established technological principals. • Using bleeding edge rarely produces the perceived benefits in places such as core business systems, without significant buy-in from business leaders. • Pre-empting standards not already widely adopted, could produce a “Beta-Max” scenario. Future Assurance • Technology solutions should deliver for a minimum timeframe within the context of the lifecycle of the related business system. • Example: Re-writing scripts during any platform migration should not just use the coolest scripting language, they should use a commonly known language widely used and understood. Aliter Consulting Drivers
  4. 4. Availability • The RTO/RPO for the SAP systems dictated multiple physical locations for the storage of database backups. Decreasing storage cost trend (long term) • (This is a perception and not necessarily fact). Platform flexibility (future cost reduction possibilities) • Additional systems requiring backups, can be added with minimal cost. • Storage can be easily re-purposed (i.e. generic storage not forever dedicated to storage of backups). In-house skill sets required • Existing technical skills to be used. • No single purpose teams (backup administrators). Maintenance of backup product • Security patching should be simple. • No on-premise requirements. Almost unlimited DB backup growth potential • In-tandem with business system growth. Business Drivers
  5. 5. COTS backup product support for HANA & ASE databases • There are few products on the market that support both SAP HANA and SAP ASE. • Majority of these products don’t (yet) support cloud as a storage destination and instead require a more traditional storage layer. Other databases automatically supported (including non-SAP) • Most COTS products need additional modules or even licenses for each DB vendor support. Performance of backup tool (historical precedent) • Previous use of a particular backup product has left bad feelings for COTS product performance. Infrastructure requirements of backup product • Each of the components can be executed independently from each other (e.g. manual DB backup), in case of complex DR. HA/DR capability (out-of-the-box) • Out-of-the-box, the backup tool should provide HA/DR capability. Technology Drivers
  6. 6. Availability Decreasing storage cost trend (long term) Platform flexibility (future cost reduction possibilities) In-house skill sets required & Maintenance of backup product Almost unlimited DB backup growth potential Azure has 99.99% availability for read operations (with RA-GRS). Azure introduced additional storage options, reducing cost (e.g. SSD standard storage). Additional Azure Storage Accounts can be added at any time (or removed). Once Azure infrastructure is set up, administrative effort is low. No limit (within reason) on the number of Azure Subscriptions. Business Drivers – Met with Azure
  7. 7. COTS backup product support for HANA & ASE databases & Other databases automatically supported (including non-SAP) Performance of backup tool (historical precedent) Infrastructure requirements of backup product & HA/DR capability (out of the box) Azure Storage is generic 20K IOPS limit per Storage Account, but 100’s of Storage Accounts possible. Azure fabric provides storage connectivity. HA/DR is possible with RA-GRS. Technology Drivers – Met with Azure
  8. 8. Multi-service technical layers • Each component serves more than one purpose in the landscape. Azure Storage Service as backbone • The Storage Service is the heavy lifting machinery, geo-replicating the backups and providing the sole backup storage silos. Existing Enterprise Scheduler (SAP BPA) • The customer had an existing use of SAP Business Process Automation (BPA) which has an excellent scheduling capability which far outweighs any scheduler built into a COTS backup product. Existing SAP HostAgent as interconnect • Every SAP system in the landscape has a SAP HostAgent installed (one per virtual machine). • Non-SAP virtual machines can also have a HostAgent installed (especially if non-SAP system is administered via SAP LaMa). Example: OpenText servers. Architecture Overview
  9. 9. Azure Subscription(s) Enterprise Scheduler Target DB Server DB Storage Account Storage Account Storage Account Storage Account /localdisk Agent Xfer Tool Trace .ini .cfg .log Target DB Server Target DB Server Target DB Server Agent Architecture Overview
  10. 10. Microsoft Azure (IaaS) Transfer Tool (e.g. blobxfer) Microsoft Azure Storage Account(s) Database files traces / logs / config (source of backups) Local Server Disk Local Orchestration Agent Enterprise Scheduler Microsoft SAP SAP/non-SAP Third Party / OpenSourceMicrosoft Storage Explorer Capability Overview
  11. 11. Azure Subscription(s) SAP Business Process Automation 9.0 Target DB Server HostAgent Custom Process Definition Backup Job Definition Job Chain HTTPS (SOAP) DB Persistence Target DB Custom Operation Script Callback Handler START FINISH /backups Trace .ini .cfg .log Web Service SAP Architecture Detail
  12. 12. • SAP BPA scheduled job chains call custom BPA Process Definition. • The custom Process Definition makes a SOAP call over HTTPS to target HostAgent. • The SOAP call targets a specific HostAgent custom operation. • Custom HostAgent operation initiates a custom script. • Custom script completes and executes a HTTPS call-back to SAP BPA, passing the execution outcome into the initiating job. • A custom BPA trigger detects completion of the job and attaches additional log files to the job (visible in BPA). • The BPA job status is validated via a custom BPA status handler, firing any required event traps (alerting etc). SAP BPA Technical Process Flow
  13. 13. Primary Region Azure Subscription(s) SAP BPA Virtual Machine PRD Target DB Server Virtual Machine /backups Secondary Region (DR) Azure Subscription(s) Azure RA-GRS Storage Accounts PRD Pre-PRD TST DEV Reserved Instance(s) ASR Targets Xfer Tool End Point End Point End Point End Point Pre-PRD Target DB Server Virtual Machine/backups Xfer Tool HTTPS TST Target DB Server Virtual Machine /backups Xfer Tool DEV Target DB Server Virtual Machine /backups Xfer Tool PRD Pre-PRD TST DEV PRD Pre-PRD TST DEV PRD-DR Windows Jump Box with Storage Explorer Microsoft Architecture Detail
  14. 14. Azure Subscription(s) SAP Business Process Automation 9.0 Target DB Server HostAgent Custom Process Definition Xfer Job Definition Job Chain HTTPS (SOAP) DB Persistence Custom Operation Script Callback Handler START FINISH /backups Web Service Xfer Tool PRD End Point SAP & Microsoft Integration Flow
  15. 15. • Within an Azure region, DB backup jobs are controlled by SAP BPA which executes custom HostAgent operations to initiate custom scripts to execute the transfer tool (xfer tool) locally on the target DB servers. • The xfer tool uploads, via HTTPS, any backup files to a single Azure Storage Account with multi-threading and then adds metadata to the files. • On custom script completion, it executes a HTTPS call-back to SAP BPA, passing the execution outcome. Microsoft Technical Process Flow
  16. 16. • x1 SAP HostAgent installed on every database server (including non-SAP). • HostAgent to be setup for auto-update (automation core). • SSL with x.509 client certs for secure communication between scheduler and HostAgent. • x2 SAP Business Process Automation (BPA) 9.0+ (x1 Prod, x1 Non-Prod). SAP Technology Requirements
  17. 17. • x2 Microsoft Azure Subscriptions (1x Prod, 1x DR) depends on number of IaaS servers (CPUs). • xn Microsoft Azure Storage Accounts (driven by number of IOPs and number of simultaneous backup transfers; there are 4 accounts for DEV systems. • xn Azure Premium Storage local disk assigned to each server (size dependent on backup source) for local backup area; Allows the Microsoft/SAP recommended disk cache settings to be applied in Azure. • xn Microsoft Windows based VDIs for Microsoft Storage Explorer. (Storage Explorer provides user friendly Storage Account navigation and administrative capabilities.) Microsoft Technology Requirements
  18. 18. Azure Subscription(s) Target DB Server Script /backups Xfer Tool PRD End Point Windows Jump Box with Storage Explorer Manual Backup Set file selection File1 File2 File3 File list Target DB Trace .ini .cfg .log Restore Operation Process Flow MANUAL
  19. 19. • Operator manually obtains restore file list. • Operator feeds custom restore script with file list. • Custom restore script instigates xfer tool to pull files from Azure Storage Account. • Operator instigates DB restore & recovery. • Operator restores trace files, config files and other files. Restore Operation Process Flow MANUAL
  20. 20. Azure Subscription(s) Target DB Server Script /backups Xfer Tool PRD End Point BackupSet1 BackupSet2 BackupSet3 Custom Backup logs Target DB Trace .ini .cfg .log Restore Operation Process Flow AUTOMATED
  21. 21. • Operator initiates custom restore script. • Operator selects required backup set (based on date/time stamp). • Custom restore script instigates xfer tool to pull down the required files from Azure Storage Account. • Operator instigates DB restore & recovery. • Operator restores trace files, config files and other files. Restore Operation Process Flow AUTOMATED
  22. 22. Azure Subscription(s) Target DB Server /backups Xfer Tool PRD End Point Target DB Trace .ini .cfg .log Restore Operation Process Flow ALTERNATIVE
  23. 23. • Operator restore of files using xfer tool to pull down required files from Azure Storage Account. • Operator instigates DB restore & recovery. • Operator restores trace files, config files and other files. Restore Operation Process Flow ALTERNATIVE
  24. 24. Primary Region Azure Subscription(s) PRD Target DB Server Virtual Machine /backups Secondary Region (DR) Azure Subscription(s) PRD Xfer Tool End Point PRD PRD Azure RA-GRS PRD PRD-DR Target DB Server /backups Xfer Tool End Point Target DB End Point Restore Operation DR Flow DR SCENARIO
  25. 25. • Primary Region failure. • Secondary Region becomes primary. • Infrastructure restored. • Access granted to RA-GRS Storage Accounts (read-only). • If necessary, files restored from Storage Account. • New backups persisted to additional DR subscription Storage Accounts. Restore Operation DR Flow DR SCENARIO
  26. 26. Microsoft Docs: • Reference architecture: https://docs.microsoft.com/en-us/azure/architecture/reference- architectures/sap/sap-netweaver • Azure Storage Services: https://docs.microsoft.com/en-us/azure/storage/common/storage- introduction • Azure RA-GRS: https://docs.microsoft.com/en-us/azure/storage/common/storage- redundancy-grs • Azure Regions: https://azure.microsoft.com/en-gb/global-infrastructure/regions/ • Storage Exlorer: https://azure.microsoft.com/en-us/features/storage-explorer/ SAP Docs: • SAP HostAgent: https://wiki.scn.sap.com/wiki/display/ATopics/SAP+Host+Agent • SAP BPA: https://www.sap.com/uk/community/topic/bpa-by-redwood.html References
  27. 27. Thank-You

×