What's New and Coming in Oracle ASM 12c Rel. 2 - by Jim Williams

Copyright © 2016, Oracle and/or its affiliates. All rights reserved. |

OpenWorld 2016 What's New and Coming in the Next GeneraFon of Oracle AutomaFc Storage Management

Jim Williams ASM Product Manager September 21, 2016

ConfidenFal – Oracle Internal/Restricted/Highly Restricted

CON6565


Safe Harbor Statement The following is intended to outline our general product direcFon. It is intended for informaFon purposes only, and may not be incorporated into any contract. It is not a commitment to deliver any material, code, or funcFonality, and should not be relied upon in making purchasing decisions. The development, release, and Fming of any features or funcFonality described for Oracle’s products remains at the sole discreFon of Oracle.

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Program Agenda

3

ASM/ACFS as the Storage Stack for Oracle Environments

Oracle ASM/ACFS Feature Progression

What's New and Coming in ASM

New ACFS Features

If You’re Not Using ASM, then Why?

1

2

3

4

5


Program Agenda

4


Oracle ASM Feature Progression


New ACFS Features


1

2

3

4

5


The Simple Idea for addressing the complexity of storage management ASM History 101

• Provides an integrated cluster volume manager and file system •  Stripes and mirrors files across disks in ASM Disk Groups • AutomaFc rebalances a^er storage configuraFon changes • Built on the Oracle instance architecture •  I/O operaFons DO NOT go through the ASM instance! • Manages storage as a global cluster of shared Disk Groups • ACFS extends the ASM management umbrella for non-‐database data • ASM along with ACFS define the Oracle Storage Stack

Copyright © 2016, Oracle and/or its affiliates. All rights reserved. | 6

Oracle Stack versus Other Host-‐based AlternaFves Host-‐based LVM/FS ASM

ALL database files are striped and mirrored automaFcally across all ASM Disks

Individual file mount points are created for each database. OrganizaFons may have hundreds or even thousands of file systems and virtual volumes to manage.

Disk Disk Disk Disk

Disk Disk Disk DiskVirtualVolume==>FileSystem

FileSystem

Disk Disk Disk Disk

Disk Disk Disk Disk

Filee1

Filee2

Filee3

Filee4

Filee5

Filee6

Filee7

Filee8

ASMDiskgroup OSVolumeGroup

Disk Disk Disk Disk

Disk Disk Disk Disk

VirtualVolume==>FileSystem

FileSystem


FileSystem


FileSystem


FileSystem


FileSystemVirtualVolume==>FileSystemFileSystem

VirtualVolume==>FileSystemFileSystem




FileSystem

Disk Disk Disk Disk

Disk Disk Disk Disk

Filee1

Filee2

Filee3

Filee4

Filee5

Filee6

Filee7

Filee8

ASMDiskgroup OSVolumeGroup


Program Agenda

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New ACFS Features


1

2

3

4

5


EvoluFon of the Oracle Storage Stack

Time

Data M

obility

9i

Database objects bound to physical storage

High Demand Databases

10g

AutomaFon of storage

management

ASM

11.2

ACFS

Expanded coverage for data types

12.1

Flex ASM

Expanded cluster scaling, and support for databases on ACFS

12.2

Cluster Domains, Database-‐oriented storage

management, Extreme availability

Data Reliability

Managem

ent E

fficien

cy


Before Oracle 12c ASM History 101

Shared Diskgroups

Wide File Striping

1-‐1 ASM to Server

DiskgroupBDiskgroupA

Disk1 Disk2 Disk3 Disk4 Disk5 Disk6 Disk7 Disk8

ASMStoragePool

Database Database Database

File1File3

File4File2

OracleCluster

DatabaseInstance

DatabaseInstance

DatabaseInstance

DatabaseInstance

DatabaseInstance

ASMInstance ASMInstance ASMInstance ASMInstance ASMInstance


Oracle 12c Release 1 Flex ASM

•  Eliminates requirement for an ASM instance on every server - Database instances connects to any ASM instance in the cluster

- Database instances can failover to a secondary ASM instance

- Administrators specify the cardinality of ASM instances (default is 3)

- Clusterware ensures ASM cardinality is maintained

Database Database Database

DatabaseInstance

DatabaseInstance

DatabaseInstance

DatabaseInstance

DatabaseInstance

1 2 3 4 5

ASMInstance ASMInstance ASMInstance


Program Agenda

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New ACFS Features


1

2

3

4

5


Diskgroup-‐oriented Storage Management (pre 12.2)

•  Diskgroups contain files striped across disks and opFonally mirrored

•  No disFncFon between individual databases

•  Easy to manage, but made consolidaFon difficult

Pre-‐12.2 Diskgroup OrganizaFon

Diskgroup

DB3 : File 1

DB2 : File 2 DB1 : File 3

DB3 : File 3

DB2 : File 1

DB1 : File 1

DB1 : File 2

DB2 : File 3 DB3 : File 2

DB2 : File 4


Database-‐oriented Storage Management (12.2)

•  New Diskgroup type: Flex Diskgroups •  Flex Diskgroups provide File Groups •  A File Group is the collecFon of files belonging to individual databases or PDBs

•  A File Group’s name defaults to the database or PDB name

12.2 Flex Diskgroup OrganizaFon

Flex Diskgroup

DB1 File 1

File 2

File 3

DB2 File 1

File 2

File 3

File 4

DB3 File 1

File 2

File 3

File Group File Group


ASM File Group Flexibility and Availability

•  Flex Diskgroups enable - Quota Management -‐ limit the space databases can allocate in a diskgroup and thereby improve the customers’ ability to consolidate databases into fewer DGs

- Redundancy Change – uFlize lower redundancy for less criFcal databases

- ASM Database Clones to easily and dynamically create database clones for test/dev or producFon databases

DB1

File1

File2

File3

DB2File1File2File3File4

DB3File1

File2

File3

QuotaGroupB

FlexDiskgroup

QuotaGroupA

FlexDiskgroupQuotaManagement

DB1

File1

File2

File3

DB2File1File2File3File4

DB3File1

File2

File3

QuotaGroupB

FlexDiskgroup

QuotaGroupA

FlexDiskgroupDatabaseClone

DB3a

File1File2File3


Domain Services Cluster

Cluster Domain

ASM IO Service

ACFS Services

ASM Service

Database Member Cluster

Uses ASM Service


Uses ASM IO Service of DSC

Trace File Analyzer (TFA) Service

Mgmt Repository (GIMR) Service

ApplicaRon Member Cluster

GI only


Uses local ASM

Shared ASM

AddiRonal OpRonal Services

Rapid Home Provisioning

(RHP) Service

Private Network SAN Storage ASM Network Storage


Storage Services – Cross Cluster Access

DomainServicesCluster

SharedASM

DatabaseMemberCluster

UsesASMService

ASMService

Version:”N”

Version:”N+1”

SAN

DatabaseMemberCluster

UsesASMIOServiceofDSC

DomainServicesClusterVersion:”N”

Version:”N+1”

ASMNETWORKSTORAGE

ASMIOService

SharedASM

•  ASM Storage Services -  Access ASM Diskgroups from different

Member Clusters -  MulF-‐versioning support -  Support for SAN or ASM network access

with ASM IO Service


DSC ConfiguraFon using SAN (FC) ConnecFon

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•  Storage to Domain Cluster – 75 LUN definiFons – 2 Fibre Channel paths – 150 disk I/F definiFons •  Storage to Member Clusters – 150 LUN definiFons/MC –  >20 Fibre Channel paths – 1500 disk I/F definiFons/MC –  >3000 total disk I/F definiFons

ConnecFvity Requirements ClusterDomain

DG DG

StorageASM


FC

FC

FC

MemberClusters


Advantages of DSC ConfiguraFon with ASM IO Service

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• DSC to Member Clusters – 2-‐way network redundancy – 20 (2 X 10 MC) network interfaces

•  Storage to Domain Cluster – 75 LUN definiFons – 2 Fibre Channel paths – 150 disk I/F definiFons

ConnecFvity Requirements ClusterDomain

DG DG DG

StorageASM

NetworkConnec8ons

FC

NetworkConnec8ons



Oracle Storage Management ConsolidaFon

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Benefits: -  Cloud-‐wide consolidated

storage management -  Quota management -  Cross-‐cluster data access

including database clones -  Integrates with Oracle Rapid

Home Provisioning

Server

Storage

Server Server Server Server Server Server

Server Server Server Server Server Server Server

Server Server Server Server



Server

Storage

Server Server Server Server Server Server










MC1 DSC

MC2 MC3






MC1 DSC

MC2 MC3

ASMDatabaseClones


Oracle RAC on Extended Clusters

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Extreme Availability

•  Previously, Extended RAC supported two Failure Groups

•  New Diskgroup type: Extended Diskgroup -  MulFple FGs per site -  Support for 3 Sites -  Survive loss of Failure Group -  Survive loss of site -  Supports Exadata

•  Built on Flex ASM •  Flex Diskgroups

•  Supported by Oracle installer

DG

Site A Site B

Fail Group B1Fail Group A1

Quorum Group

RAC

Disk

Disk DiskF-EXT Disk DiskF-EXTDG

Site A Site B

Fail Group B1Fail Group A1

Quorum Group

Fail Group A2 Fail Group B2

RAC

Fail Group B3 Fail Group B4Fail Group A3 Fail Group A4

Disk

Disk DiskF-EXT Disk DiskF-EXT

Disk Disk Disk Disk

Disk Disk Disk DiskF-EXT

Disk DiskF-EXT Disk Disk


ASM Filter Driver • ASM Filter Driver is a funcFonal replacement for ASMLIB (New & Improved) – ASMLIB provides efficient IO handling and device name persistence for Linux – ASMFD extends that to Solaris and Microso^ Windows

But wait, there’s more – Prevent errant write operaFons to ASM Disks – Supported by ACFS – OpFmal support for 4K devices – T10 end to end Data Integrity – Cluster node fencing – Storage thin provisioning reclamaFon

• ASMFD is Oracle’s plasorm for future advanced storage feature integraFon 21


Program Agenda

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New ACFS Features


1

2

3

4

5


ADVM Volumes General Purpose Files on ACFS

Database Datafiles On ACFS

Oracle ADVM

ApplicaRon & Middleware files on ACFS

•  Industry standard POSIX & Windows Compliant Cluster File System •  Supports database and general purpose files •  Seamless integraFon with ASM and Oracle Clusterware

•  Thousands of customers

ACFS -‐ A Complete Oracle Storage SoluFon

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ApplicaFon, Middleware & General Files

AutomaFc Storage

Managem

ent (ASM)

Database RAC

ASM Disk

Group

Oracle Clusterw

are

Snapshot Tagging ReplicaRon

Security EncrypRon AudiRng HA-‐NFS & HA-‐SMB

Compression

Plug-‐ins

Oracle ACFS


Compression

Snapshots Quotas, Remaster

& Duplicate

Snapshot-‐based ReplicaFon

Auto File System Quotas & Auto

Resize

Metadata AcceleraFon

HA-‐SMB NAS Support

New ACFS Features in Oracle 12c Release 2


Program Agenda

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New ACFS Features


1

2

3

4

5


Value of the Oracle Storage Stack •  The Oracle Storage Stack began with the development of ASM and greatly simplified Oracle database storage management. • ACFS introduced in 11.2 extended data type coverage for all data. •  Support in ACFS for databases provided new choices for DBAs for managing database data. •  The Oracle Storage Stack provides a single comprehensive storage and data management soluFon required of enterprise applicaFons. • Oracle 12c Release 2 introduces Database-‐oriented Storage Management for greater management efficiency, data reliability and mobility.

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Why Are You NOT Using ASM?

• Deploying small databases using local or 3rd party file systems – As you grow, managing many independent volumes and file systems will become overwhelming and inefficient! – For clusters, using 3rd party volume managers and file systems with Oracle database is far less robust.

• Deploying databases on NFS filers – If you have standardized on NFS, then consider the storage management advantages of layering ASM on NFS. – ASM on NFS is no less performant than NFS alone

• ASM is Oracle’s strategic plasorm for managing all data

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Software

What's New and Coming in Oracle ASM 12c Rel. 2 - by Jim Williams