How to use Oracle Real ApplicaCon Clusters (RAC) in a Cloud? A Support QuesCon

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2 How to use Oracle Real ApplicaCon Clusters (RAC) in a Cloud? A Support QuesCon Markus Michalewicz Senior Director of Product Management, Oracle RAC Development May 29 th, 2017 htp:// htp:// Copyright 2016, Oracle and/or its affiliates. All rights reserved.

3 Why I Created this PresentaCon To help you answer ques0ons like the one below I have a customer (IHAC) using Oracle 12c on Windows 2012 R2 with MSCS and Oracle Failsafe. The underlying storage cluster solu0on is HP 3par peer persistence. Kindly confirm, is HP 3par peer persistence cer0fied by Oracle on Windows? Received: 10/12/16, 7:29 AM Copyright 2016, Oracle and/or its affiliates. All rights reserved. 3

4 The Problem with DocumenCng Supported ConfiguraCons It s a mul0- dimensional problem The solucon is to break it down into handle- able chunks. Copyright 2016, Oracle and/or its affiliates. All rights reserved. 4

5 Program Agenda General Oracle Database Support General Oracle RAC Support Rules CerCfied, Supported & Recommended VirtualizaCon Technologies Support Oracle RAC Support in the Cloud Copyright 2016, Oracle and/or its affiliates. All rights reserved. 5

6 Program Agenda General Oracle Database Support General Oracle RAC Support Rules CerCfied, Supported & Recommended VirtualizaCon Technologies Support Oracle RAC Support in the Cloud Copyright 2016, Oracle and/or its affiliates. All rights reserved. 6

7 Terminology for this PresentaCon Cer%fica%on describes the process of tescng a given configuracon for the purpose of supporcng it. Cer%fied describes that a given configuracon has been tested (by Oracle). Supported means that a given configura%on is eligible to retrieve technical support provided by Oracle. Determining Support means to find out whether a given configuracon is supported by Oracle. Notes: 1. CerCficaCon is not prerequisite for a configuracon to be supported! 2. A cercfied configuracon is always supported. Copyright 2016, Oracle and/or its affiliates. All rights reserved. 7

8 Support Basics for the Oracle Database Part 1 General rules and regulacons govern the support for the Oracle Database. If general rules and regulacons (alone) do not cover a given case, CerCfy should be consulted for details. If CerCfy does not cover a case, check for excepcons and special rulings in My Oracle Support (MOS) Notes or request clarificacon via a Service Request. Copyright 2016, Oracle and/or its affiliates. All rights reserved. 8

9 Support Basics for the Oracle Database Part 2 Tip: Oracle ASM avoids a lot of cercficacon quescons therefore. Note 1: Icon size is random. Note 2: Not a complete list of supported OS. General rule: The Oracle Database is cercfied on OS- level, not on hardware- level. General rule: Storage that represents itself as block storage to the OS does not require cercficacon. File System support is subject to special ruling (see MOS note Supported and Recommended File Systems on Linux Doc ID ) for example. Copyright 2016, Oracle and/or its affiliates. All rights reserved. 9

10 Punng 1+1 Together Examples Can I use my EMC storage with the Oracle ? Is Oracle with EMC storage on OL 6.4 supported? YES, assuming that the storage coming from the EMC storage represents itself as block storage. The storage part is covered as per the previous quescon. For the OS support, CerCfy needs to be checked. ( layered approach) Copyright 2016, Oracle and/or its affiliates. All rights reserved. 10

11 Using CerCfy Part 1 Is the Oracle Database in version supported on Oracle Linux 6.4? Copyright 2016, Oracle and/or its affiliates. All rights reserved. 11

12 Using CerCfy Part 2 Review Cer0fica0on Details for Notes and Support informa0on. Copyright 2016, Oracle and/or its affiliates. All rights reserved. 12

13 Support Basics for the Oracle Database Conclusions Determining support for a given configuracon means considering: 1. General rules and regulacons 2. CerCfy 3. ExcepCons and special ruling Support for the Oracle Database is layered A system is only supported for the Oracle Database, if all layers are supported. Example: In a given system, in which the OS is cercfied, but the file system (which is subject to special ruling ) is not, the Oracle Database cannot be supported using the unsupported file system (FS) for database files. The FS might scll be eligible to host the Oracle Home while other FSs can be used for database files. Copyright 2016, Oracle and/or its affiliates. All rights reserved. 13

14 Program Agenda General Oracle Database Support General Oracle RAC Support Rules CerCfied, Supported & Recommended VirtualizaCon Technologies Support Oracle RAC Support in the Cloud Copyright 2016, Oracle and/or its affiliates. All rights reserved. 14

15 Support Basics for Oracle RAC Part 1 Oracle RAC can only be supported on a system that is supported for the Oracle Database. To determine support for Oracle RAC on a given system, certain hardware requirements as listed in the RAC Technology Support Matrixes need to be met. AddiConally, all requirements listed in the Oracle DocumentaCon for the Oracle Grid Infrastructure InstallaCon guide need to be met. Copyright 2016, Oracle and/or its affiliates. All rights reserved. 15

16 RAC Technology CompaCbility Matrix (RTCM) RTCM for Linux technetwork/database/ clustering/tech-genericlinux-new html RTCM for Unix technetwork/database/ clustering/tech-generic-unixnew html RTCM for Windows: h^p:// generic- windows- new html Copyright 2016, Oracle and/or its affiliates. All rights reserved. 16

17 Support Basics for Oracle RAC Part 2 Best PracCces (BP) suggest to avoid using any third party cluster with RAC. Cluster A Oracle Cluster Network requirements (network cards & switches) need to be considered for Oracle RAC. They are covered in the RTCMs and the Oracle DocumentaCon. Storage requirements (shared storage & access protocols) need to be considered for Oracle RAC. They are covered in the RTCMs and the Oracle DocumentaCon. CerCfy must be consulted as soon as Oracle RAC is meant to be operated together with a third party cluster solucon or a third party cluster file system. Copyright 2016, Oracle and/or its affiliates. All rights reserved. 17

18 Using CerCfy Part 1 Ques0on: Can I use Oracle RAC with Veritas Cluster on Linux? Copyright 2016, Oracle and/or its affiliates. All rights reserved. 18

19 Using CerCfy Part 2 YES: Can I use Oracle RAC with Veritas Cluster on Linux? Best PracCces (BP) suggest to avoid using any third party cluster with RAC. Copyright 2016, Oracle and/or its affiliates. All rights reserved. 19

20 Punng 1+1 Together Example Can I build a 4- node Oracle RAC 12.1 cluster using Dell PowerEdge R330 Servers and HP MSA2012 storage? NO, as the storage is a SCSI Drive Case. Direct atached SCSI storage is supported for a maximum of 2 nodes only as per RTCM. Determining Support: 1. OS informacon is missing! AssumpCons need to be made 2. Dell PowerEdge R330 Servers Can run supportable OS By default come with 2*1GbE cards Good enough for support purposes, but not for BP 3. HP MSA2012 is an outdated storage, but for support- purposes this is fine. This is an SCSI Drive Case Copyright 2016, Oracle and/or its affiliates. All rights reserved. 20

21 Support Basics for Oracle RAC Conclusions Determining support for a given configuracon means considering: 1. Support for the Oracle Database 2. The Oracle RAC Technology CompaCbility Matrixes (RTCM) 3. Oracle DocumentaCon regarding further requirements 4. Third party cluster solucons and third party cluster file systems as needed Support for Oracle RAC is layered and does consider hardware to some degree A system is only supported for Oracle RAC, if all layers are supported. Example: In a given system, in which the Oracle Database is supported, but which fails to meet network or storage requirements for Oracle RAC, cannot be supported for Oracle RAC. This means, a system that is supported for Oracle RAC is always supported for the Oracle DB. Copyright 2016, Oracle and/or its affiliates. All rights reserved. 21

22 Program Agenda General Oracle Database Support General Oracle RAC Support Rules CerCfied, Supported & Recommended VirtualizaCon Technologies Support Oracle RAC Support in the Cloud Copyright 2016, Oracle and/or its affiliates. All rights reserved. 22

23 More Terminology (for this PresentaCon) Cer%fied describes that a given configuracon has been tested (by Oracle). Supported means that a given configuracon is eligible to retrieve technical support provided by Oracle. Recommended means that a given configuracon is preferred over other solucons, although other solucons may scll be supported. RecommendaCons are oten provided as part of Best PracCces (BP) Notes: 1. CerCficaCon is not prerequisite for a configuracon to be supported! 2. A cercfied configuracon is always supported. Copyright 2016, Oracle and/or its affiliates. All rights reserved. 23

24 CerCfied, Supported and Recommended ConfiguraCons Supported ConfiguraCons Recommended ConfiguraCons Recommended configuracons are typically not on the edge. CerCfied ConfiguraCons Recommended ConfiguraCons Graphics do not scale! Copyright 2016, Oracle and/or its affiliates. All rights reserved. 24

25 The Problem with Choices Network Layer Server Hardware Layer VirtualizaCon Layer Oracle RAC Oracle GI Operating System Venus Virtualization Earth Oracle RAC Oracle GI Operating System Virtualization Sotware Layer OperaCng System Layer Storage Access Layer Storage Layer Copyright 2016, Oracle and/or its affiliates. All rights reserved. 25

26 The Problem with Choices A SoluCon Network Layer Server Hardware Layer VirtualizaCon Layer Oracle RAC Oracle GI Operating System Venus Virtualization Earth Oracle RAC Oracle GI Operating System Virtualization Sotware Layer OperaCng System Layer Storage Access Layer Storage Layer Copyright 2016, Oracle and/or its affiliates. All rights reserved. 26

27 For High Availability SoluCons Uniqueness Does Not Pay Off Using a mainstream solu0on usually leads to smoother day- to- day opera0ons Supported Configura0ons Recommended Configura0on Copyright 2016, Oracle and/or its affiliates. All rights reserved. 27

28 A Support Status can Change over Time Check support status on a regular basis Example RDS Support for RAC on Linux OFED use for RDS was permited In Future, RDS over IB will be supported only on Exadata and Oracle Database Appliance. Today* * March 15 th 2017 ** Timeline does not scale t ** Copyright 2016, Oracle and/or its affiliates. All rights reserved. 28

29 Program Agenda General Oracle Database Support General Oracle RAC Support Rules CerCfied, Supported & Recommended VirtualizaCon Technologies Support Oracle RAC Support in the Cloud Copyright 2016, Oracle and/or its affiliates. All rights reserved. 29

30 Support Basics for VirtualizaCon Technologies Best PracCces suggest to avoid using most virtualizacon technologies with RAC. The Virtualiza0on Matrix is Oracle s single source of truth for Supported Virtualiza%on and Par%%oning Technologies for Oracle Database and RAC Product Releases General rule: Oracle s DocumentaCon is based on the idea of a posicve list! I.E. a configuracon that is not listed is if in doubt not supported. If the Virtualiza0on Matrix does not cover a case (directly or indirectly), check for excepcons and special rulings in My Oracle Support (MOS) Notes or request clarificacon via a Service Request. Copyright 2016, Oracle and/or its affiliates. All rights reserved. 30

31 The VirtualizaCon Matrix h^p:// html Covering posicve list for future versions. RAC One Node follows RAC CerCficaCon Copyright 2016, Oracle and/or its affiliates. All rights reserved. 31

32 Using The VirtualizaCon Matrix Oracle VM and Vmware are treated as special ruling cases Oracle VM is the only fully supported and cercfied VM- based virtualizacon solucon for Oracle RAC. For more informacon, see: Oracle Real ApplicaCon Clusters in Oracle VM Environments MOS note CerCfied Sotware on Oracle VM (Doc ID ) Vmware support is regulated in MOS note: Support Posi%on for Oracle Products Running on VMWare Virtualized Environments (Doc ID ) : Note: Oracle has not cer%fied any of its products on VMware. For Oracle RAC, Oracle will only accept Service Requests as described in this note on Oracle RAC and later releases. Copyright 2016, Oracle and/or its affiliates. All rights reserved. 32

33 Punng 1+1 Together A MulCdimensional Example Received: 11/3/16, 4:54 PM IHAC considering RAC One Node on Microsot Hyper- V using Windows server as the OS. QuesCons: 1) Is RAC cercfied on Hyper- V? 2) Is it supported? 3) If RAC is supported on Hyper- V, how will it be setup? 4) Can we use the Hyper- V shared disk feature or shall we go for physical LUNs from the SAN storage instead? Copyright 2016, Oracle and/or its affiliates. All rights reserved. 33

34 A MulCdimensional Example Determining Support Step 1 Received: 11/3/16, 4:54 PM IHAC considering RAC One Node on Microsoi Hyper- V using Windows server as the OS. QuesCons: 1) Is RAC cercfied on Hyper- V? 2) Is it supported? 3) If RAC is supported on Hyper- V, how will it be setup? 4) Can we use the Hyper- V shared disk feature or shall we go for physical LUNs from the SAN storage instead? Determining Support: The exact OS informacon is missing! Consult the Virtualiza0on Matrix RAC One Node follows RAC CerCficaCon Copyright 2016, Oracle and/or its affiliates. All rights reserved. 34

35 A MulCdimensional Example Determining Support Step 2 Received: 11/3/16, 4:54 PM IHAC considering RAC One Node on Microsot Hyper- V using Windows server as the OS. Ques0ons: 1) Is RAC cer0fied on Hyper- V? 2) Is it supported? 3) If RAC is supported on Hyper- V, how will it be setup? 4) Can we use the Hyper- V shared disk feature or shall we go for physical LUNs from the SAN storage instead? Determining Support: The VirtualizaCon Matrix says cercfied : Copyright 2016, Oracle and/or its affiliates. All rights reserved. 35

36 A MulCdimensional Example Determining Support Step 3 Received: 11/3/16, 4:54 PM IHAC considering RAC One Node on Microsot Hyper- V using Windows server as the OS. Ques0ons: 1) Is RAC cercfied on Hyper- V? 2) Is it supported? 3) If RAC is supported on Hyper- V, how will it be setup? 4) Can we use the Hyper- V shared disk feature or shall we go for physical LUNs from the SAN storage instead? Determining Support: Any cercfied solucon is supported! The answer therefore is: YES, Oracle RAC in version and are supported assuming at least Windows Server 2012 is used with and at least Windows Server 2012 R2 Gen 2 is used for Copyright 2016, Oracle and/or its affiliates. All rights reserved. 36

37 A MulCdimensional Example The Extra QuesCon 3) Received: 11/3/16, 4:54 PM IHAC considering RAC One Node on Microsot Hyper- V using Windows server as the OS. Ques0ons: 1) Is RAC cercfied on Hyper- V? 2) Is it supported? 3) If RAC is supported on Hyper- V, how will it be setup? 4) Can we use the Hyper- V shared disk feature or shall we go for physical LUNs from the SAN storage instead? QuesCons 3) and 4) are not support quescons; they are BP quescons. Note: Oracle does not provide best praccces (BP) for virtualizacon solucons that it does not own (here: Hyper- V) Reason: VirtualizaCon solucons are meant to be transparent and hence, standard documentacon should be sufficient to set up an Oracle Database and RAC within it. Thus, quescon 3) cannot be answered by Oracle regarding the generic Hyper- V part. Copyright 2016, Oracle and/or its affiliates. All rights reserved. 37

38 A MulCdimensional Example The Extra QuesCon 4) Received: 11/3/16, 4:54 PM IHAC considering RAC One Node on Microsot Hyper- V using Windows server as the OS. Ques0ons: 1) Is RAC cercfied on Hyper- V? 2) Is it supported? 3) If RAC is supported on Hyper- V, how will it be setup? 4) Can we use the Hyper- V shared disk feature or shall we go for physical LUNs from the SAN storage instead? QuesCons 3) and 4) are not support quescons; they are BP quescons. For quescon 4), the requirement for Oracle RAC is to have shared disk storage. As Oracle does not cercfy against specific features (unless explicitly stated), the Hyper- V shared disk feature is unknown. Oracle does know, however, that physical LUNs from the SAN are likely to work and make the stack simpler. Why not use them? Copyright 2016, Oracle and/or its affiliates. All rights reserved. 38

39 Support Basics for VirtualizaCon Technologies - Conclusions Determining support for a given configuracon means considering: 1. The Virtualiza0on Matrix 2. The Oracle DocumentaCon, which is based on a posicve- list idea 3. Special ruling, which is more common for virtualizacon solucons 4. Common Sense Support for Oracle RAC is layered and does consider virtualizacon technologies A system is only supported for Oracle RAC, if all layers are supported. There is no implied cercficacon for Oracle RAC on virtualizacon solucons. Example: A configuracon that is cercfied by all measures on a bare metal system is not automaccally cercfied in a virtualized environment. A posicve list entry is needed. Copyright 2016, Oracle and/or its affiliates. All rights reserved. 39

40 Program Agenda General Oracle Database Support General Oracle RAC Support Rules CerCfied, Supported & Recommended VirtualizaCon Technologies Support Oracle RAC Support in the Cloud Copyright 2016, Oracle and/or its affiliates. All rights reserved. 40

41 Support Basics for Oracle RAC in the Common Clouds Oracle RAC is fully cer0fied in the Oracle Cloud via the Exadata Service and as an DBaaS offering. Azure provides an ability to run Oracle RAC over a min. of three Azure IaaS instances. AWS provides an ability to run Oracle RAC over a min. of three EC2 IaaS instances. Copyright 2016, Oracle and/or its affiliates. All rights reserved. 41

42 What does ability to run RAC over 3 IaaS instances mean? It describes the ability to u0lize compute instances as shared storage in some way Most clouds do not provide shared storage nacvely. NaCvely means as part of their standard offer. RAC requires shared storage. Per RTCM: iscsi and NFS are supported for Oracle RAC RestricCon: The accessed storage must be supported by the system and storage vendors. Using one instance as an NFS / iscsi server, which provides shared storage to RAC compute nodes is a supportable setup following RTCM regulacon. As long as the OS, network and other layers are supported, such a configuracon is supportable. Special ruling scll needs to be considered. Copyright 2016, Oracle and/or its affiliates. All rights reserved. 42

43 NaCvely Provided Shared Storage Strongly recommended to operate Oracle RAC in any cloud Cloud vendors are asked by their customers to support Oracle RAC as part of their cloud offerings. Other than the Oracle Cloud, no other cloud offering currently provides shared storage support as required by Oracle RAC. MulCple non- nacve solucons have been used by different cloud vendors to provide shared storage. Such solucons include virtual shared storage as well as physical third party storage solucons. As ease of support and manageability decreases with every addiconal non- nacve layer used to operate an Oracle RAC database, nacvely provided shared storage is strongly recommended to operate Oracle RAC in any cloud. Copyright 2016, Oracle and/or its affiliates. All rights reserved. 43

44 Special Ruling AffecCng Oracle RAC Support in the Cloud The Licensing Oracle Sotware in the Cloud CompuCng Environment document states: htp:// licensing pdf This policy applies to cloud compu%ng environments from the following vendors: Amazon Web Services Amazon Elas+c Compute Cloud (EC2), Amazon Rela+onal Database Service (RDS) and Microso? Azure PlaAorm (collec%vely, the Authorized Cloud Environments ) This policy applies to these Oracle programs. These Oracle programs do not include Oracle RAC as well as a few other opcons. For more details see: htp:// authorized- cloud- environments pdf Copyright 2016, Oracle and/or its affiliates. All rights reserved. 44

45 Oracle RAC in the Cloud Where is it Heading? Oracle concnues to support Oracle RAC in the Oracle Cloud via Exadata Service and as an DBaaS offering, which is planned to scale beyond the current 2- nodes. General rule: As long as an IaaS Cloud meets Oracle RAC requirements (e.g. network and storage), this cloud is in principle supportable for Oracle RAC. Special ruling regulates most Public Cloud and IaaS solucons. Check for such ruling prior to considering any solucon. Copyright 2016, Oracle and/or its affiliates. All rights reserved. 45

46 Support Basics for Oracle RAC in the Cloud Conclusions Determining support for a given configuracon means considering: 1. General Oracle Database support rules as discussed 2. Oracle RAC support rules as discussed 3. Most VirtualizaCon Technology support does not apply 4. Special ruling, which is more common for the Cloud Support for Oracle RAC in the Cloud is scll layered A system is only supported for Oracle RAC, if all layers are supported. IaaS Cloud solucons are treated as server and oten subject to special ruling, as the underlying or used technology may not be transparent enough for general rules. Copyright 2016, Oracle and/or its affiliates. All rights reserved. 46

47 Why I Created this PresentaCon To help you answer ques0ons like the one below I have a customer (IHAC) using Oracle 12c on Windows 2012 R2 with MSCS and Oracle Failsafe. The underlying storage cluster solu0on is HP 3par peer persistence. Received: 10/12/16, 7:29 AM Kindly confirm, is HP 3par peer persistence cer0fied by Oracle on Windows? The answer is: YES, they can use this storage with the Oracle DB. For all other quescons they should ask the OS & Cluster vendor. Copyright 2016, Oracle and/or its affiliates. All rights reserved. 47

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