bulletproof your linux environment - vox.veritas.com b10.pdf · rhel/sles hypervisor sf sf vcs vcs...

Bulletproof Your Linux Environment

Carlos Carrero Technical Product Manager

Storage & Availability Management Group

Bullet Proof Linux

Scale out workloads for faster performance

Fast failover

Reduce Storage Consumption

Scale Out Storage

Deploy HA/DR without complex and hard to maintain scripts

Enable non-disruptive maintenance operations

Robust support for server virtualization

Enterprise Grade HA/DR

Production

DR

Improve operational scale

Reduce storage costs with freedom of choice

Migrate storage online with no application impact

Maximize Data Center Investment


Reduce Complexity Automate High Availability and Disaster Recovery

Metropolitan HA (Stretch Cluster)

Wide-Area DR (Global Cluster)

Local HA Recover faster

Reduce reliance on personnel during an incident

Reduce operator error

Provide comprehensive data and application availability

Simplify by using a single solution for:

Local HA

Campus/Metro DR

Global DR

The Benefits Symantec High Availability and Disaster Recovery

SAP APP 1 APP 3 APP 2 SAP SAP APP 4

Synch Replication or Mirroring

APP 4 APP 1 APP 2 APP 3

Asynchronous Replication


Simulate DR Failover: FireDrill

Test Your HA/DR Strategy With No Disruption


Schedule and run actual application failovers at DR site

Diagnose with built-in reporting

Primary Site

Volume Snapshot

Initiate Fire Drill Mount Snapshot

Replication

Test Application Reset

Secondary Site

Accelerate Recovery Intelligent Monitoring Framework

Registration, Blocking, Notification and Remediation

Agent registers resource with the AMF Kernel Driver and provides it resource specific information

Agent blocks and awaits notification on resource status change

Resource status change instantaneously relayed to the blocking agent for handling

Enable extremely fast failure detection and remediation

Significant reduction in system resource utilization thus devoting key resources for other processing

HAD

Agent Framework

Intelligent Monitoring Framework (IMF)

Resources

IMF: Agents loosely coupled with resources, wait on

the AMF driver for notification

Registering…

AMF Driver

Faulted


Why Fencing?

Prevent Downtime Eliminating Corruption Risk


APP APP

Need to restrict writes to current and verified nodes

SCSI-3 Based Fencing CPS Based Fencing

SCSI3 PR Disks

SCSI3 disks for i/o fencing

Maximum data protection

Non SCSI3 fencing

Virtualized environment

Coordination Point Servers

Data Corruption

APP APP

Intelligent Service Protection

Bulletproof Your Linux Environment 7

Node 1: Active

APP

Interconnect

Node 1: Passive Node 1: Active

APP

Node 1: Passive

APP

Protect Running Services

Avoid unnecessary downtime Prevent operational errors

Preferred Fencing Prevent Concurrency Violation

From full upgrade to rolling upgrade Reduced application downtime during upgrade


CFS

CVM

DMP LLT

GAB CFS

CVM

DMP LLT

GAB

HAD HAD

CFS*

CVM*

DMP* LLT*

GAB*

N1 N2

Old Version

New Version

CFS*

CVM*

DMP* LLT*

GAB*

HAD* HAD*

Upgrade without any application downtime

Two step process fully automated by Installer (CPI)

Supported from 5.1 onwards for SFHA, CFS, CFSHA, SFRAC

Application Application

Multi-Tier Applications & Services

Database

Application

Web server

Billing

app app app

DB

FS IP

VVR

Service Group

VCS

App

IP

Service Group

VCS

Web

VM

Service Group

Web

VM

Service Group

ApplicationHA

Veritas Cluster Server HA/DR

Veritas Cluster Server HA

Symantec ApplicationHA

Veritas Operations Manager


Transition to Virtual Business Service Seamlessly


Database SG

Application Server SG

Web Server SG

Billing Virtual Business Service


Start/Stop Order

Inter-cluster fault policy

Database

Application

Web server

Billing

app app app

DB

FS IP

VVR

Service Group

VCS

App

IP

Service Group

VCS

Web

VM

Service Group

Web

VM

Service Group

ApplicationHA

Virtual Business Service Unparalleled Support Matrix


Operating Systems

Solaris

HP-UX

AIX

Linux

Windows

Virtualization

VMware

OracleVM, Zones

WPAR, LPAR

KVM

Hyper-V

High Availability

VCS 5.1, 6.0

VCS 5.1 SP1 (Unix)

VCS 5.1 SP2 (Win)

ApplicationHA 5.1 SP2

ApplicationHA 6.0

Databases

Oracle

Sybase

SAP

DB2

MySQL

Applications

Informatica

WebSphere

Microsoft Exchange

WebLogic

PeopleSoft

Replication

Veritas Replicator

Oracle Dataguard

EMC SRDF

NetApp SnapMirror


Robust Virtualization Support

Virtualization brings challenges for visibility and availability of applications

Application Control & Visibility

Monitoring tools providing information only!

Rigid Storage compatibility for clusters!

Siloed approach for physical and virtual

Database down what about other apps?

Multi-tier Application Management

Hypervisor

VM C

OS

VM B

ISS

OS

SQL

VM A

ORA

OS

Hypervisor

VM C

OS

VM B

ISS

OS

SQL

VM A

ORA

OS

Hypervisor

VM C

OS

VM B

ISS

OS

VM A

ORA

OS

Hypervisor

VM C

OS

VM B

ISS

OS

SQL

VM A

ORA

OS

Lack visibility into performance bottlenecks!

Hypervisor

Disaster Recovery and Availability


VCS Guest Cluster for 24x7 Application Availability


24x7 Intelligent Monitoring by VCS

Detailed application awareness

Traditional clustering, application availability

Rapid Application Recovery

Fast failover to standby VM

Integrated with SFCFS

Minimize Application Downtime

Protection against OS corruption

No downtime for OS patching

Unix/Linux Virtualization Support

SUSE/RHEL KVM, RHEV, OVM

Oracle Solaris VM Server for Sparc

IBM PowerVM (LPARs)

HP IVM

VM1

OS

VM2

OS

HOST

SQL ORA

VM1

OS

VM2

OS

HOST

Web

VCS VCS

ORA

VCS + ApplicationHA for complete High Availability

15

Modular monitoring

In guest App monitoring by ApplicationHA

VM/Infrastructure monitoring by VCS

Collaborative application aware VM monitoring

Coordinated application recovery

Application restart

VM restart on same server

VM failover to standby server Unix/Linux Virtualization Support

RHEL KVM

SUSE KVM (VM/HA)

Oracle Solaris VM Server for SPARC (LDOMs)

IBM PowerVM (LPARs)

VM

OS

HOST

VM

OS

HOST

VCS VCS

ORA

ApplicationHA

VM

OS

APP

ApplicationHA

ApplicationHA

VM

OS

ORA

ApplicationHA

APP


VM1

OS

App1

VM2

OS

App5

VM3

OS

App3

VM4

OS

App3

VM5

OS

DMP

App2

VM8

OS

Hypervisor

App8

VM9

OS

App9

VM6

OS

Hypervisor

App6

VM7

OS

App7

RHEL/SLES

SF

App1 App2

VCS

RHEL/SLES

CFSHA

App3 App4

KVM environment Physical environment

CFSHA CFSHA

DMP SFHA

RHEL/SLES

Hypervisor

RHEL/SLES

Hypervisor

SF SF

VCS VCS

VCS VCS VCS VCS

16

VOM

Symantec in the RHEL/SLES KVM ecosystem


VM1

OS

App1

VM2

OS

App5

VM3

OS

App3

VM6

OS

Hypervisor

App6

VM7

OS

App7

KVM environment

RHEL/SLES

Hypervisor

SFHA SFHA SFHA SFHA SFHA

Benefits:

– Live migration of guest VMs

– Fast failover for applications

– Shared access to storage for parallel apps CFSHA CFSHA

VM6

OS

Hypervisor

App6

VM7

OS

App7

CFSHA CFSHA

17

SFCFSHA use case in RHEL/SLES KVM VOM


PrivateLinks

Veritas Cluster Server Integration with VMware

Controlled VM access via Veritas Cluster Server

Utilize Hot Disk API for attaching disks

Wider support of disk types available incl RDM and VMDK

Enable vMotion, HA & DRS etc..

VMwareHA and vSphere integration

Deployment and configuration from vSphere

Easy transfer of operational knowledge to virtual environments.

VM1 Boot VM2 Boot

Oracle Data

VM2

Ora

ESXi 2

VM1

Ora

ESXi 1

Shared Datastore

VCS VCS


Using the power of VCS to control VM access to storage

Graceful Switchover:

• When the application SG is switched from VM1 to VM2

– The offline routine of VMwareDisks detaches the disks from VM1

– The online routine on the failover target node then attaches the disks to VM2

– Allow vMotion and DRS at the same time

PrivateLinks

VM1 Boot VM2 Boot

SQL Data

Shared Datastore

Detach Data Disks

VM1

SQL

ESXi 1

Offline SQL

Attach Data Disks

to VM2

Online SQL

VM1

SQL

ESXi 1

VM2

SQL

ESXi 2

VM2

SQL

ESXi 2


Component Dependency

VM Selected Application Status Cluster Status Application Operation

Visualize and control apps from vSphere client – screenshot


ESX

RDM-P SCSI3 PR for Data Protection vMotion and DRS are prohibited

VMDK Take advantage of ESX multi-writer capability Provide cache consistency Allow vMotion and DRS Use Coordination Point Servers

VMFS + multi-writer

VMDK

CFS

CPS ES

X

ESX

ESX

ESX

ESX

CFS

SCSI3 Fencing

Cluster File System in VMware Environments


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Veritas Dynamic Multi-Pathing (DMP) for VMware: Improved storage I/O performance and availability

Improve performance

– SAN & workload aware load balancing

– Real-time I/O performance graphs

Increase availability

– Proactive path failover

– Automated path recovery

Improve storage visibility

– Enhanced device naming

– Extended attribute discovery & reporting

– Data center storage reporting via vCenter

Utilize a single multi-pathing solution across physical and virtual with heterogeneous storage

Any X86 Server

VMware ESX

Hypervisor

ESX PSA Framework

MPP DMP

Guest Guest Guest Guest


Bullet Proof Linux

• Scale out workloads for faster performance

• Fast failover

• Reduce Storage Consumption

Scale Out Storage

• Deploy HA/DR without complex and hard to maintain scripts

• Enable non-disruptive maintenance operations

• Robust support for server virtualization


Production

DR

• Improve operational scale

• Reduce storage costs with freedom of choice

• Migrate storage online with no application impact




Improve Operational Scale



Finance VBS

AppHA AppHA AppHA


AppHA AppHA

Billing VBS

AppHA AppHA

HR VBS

VCS

VCS

VCS

CFS HA

SF HA

Finance Dept Billing Dept HRDept

Vx File System

Faster and Resilient Service Deployments


Vx Volume

DMP

Veritas Operation Manager

DB

LUN LUN LUN

Array

BCV SRDF

App Web

Deep Storage Mapping

Automation &

Integration

Improved Efficiency by

Faster end-to-end automation Storage visibility & control Reduced build complexity

Storage Templates

Array Type Attributes Disk Type

RAID Replica

Automatic propagation & Validation




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Health Checks


POLICY THEME Sample health check to include

1. Ensure availability frozen service groups

2. Maximize utilization underutilized disks and file systems

3. Enforce best practices Cluster OS consistency

Pick from 50 built-in health checks

Ability to write custom

health checks

Run & schedule health checks with a simple click

Recommend creating policies around the following 3 themes

Automate actions on faults


Configure rules to take action on fault

types

Specific Array Support Libraries

Sub-path failover groups

Rapidly Recover Performance & Availability

Enhanced risk visibility

Automatic array tuned performance

Mitigate errors & recover faster

Enhanced SAN Management


DMP SCSI Bypass


DMP compliance reporting

Root devices support

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Minimize Management Complexity


Advanced Workload Management Appropriate placement workload HW costs reduction Maintain operational efficiency

Veritas Cluster Server

Service Group Workload Management

Simpler N:N configurations


Faster Migrations

Change with Minimum Disruption

Migration Steps Cross Platform Migration

Migration using traditional methods (network copy)

1. Provision Storage

2. Set up for copy process

3. Stop Oracle instance

4. Start copy process

– Using NFS, rcp/scp or similar

5. Wait for data transfer

– Can take many hours or days

6. Start Oracle instance


Challenges with traditional methods Requires double the storage

Require a high bandwidth network connection Will most likely require a long application outage to copy data

Migration Steps Cross Platform Migration

Migrating an Oracle Database between hardware platforms using Storage Foundation

1. Configure CDS

2. Stop Application

3. Deport Disk Group

4. Import Disk Group on new host

5. Validate file systems and convert byte order if necessary (to/from Linux)

6. Start Application


Perform Storage Migrations Online Over any distance


Migrate Arrays Locally Migrate Over Distance

Wizard based configuration

Configured during business Hours / Scheduled for non-Business hours

Unattended Migration

No Application Downtime

Veritas Storage Foundation SF, VCS

Synch/Asynch Replication

SF, VCS

Performed Over IP without expensive Infrastructure

Data Center Migration

Allows for easy back out if issues detected

Utilize SmartMove to go Thin!

Bullet Proof Linux



• Fast failover


Scale Out Storage





Production

DR





CFS HA

Storage Foundation Cluster File System (SFCFS)


CVM

High-performance Low-overhead architecture Scalable architecture Sub-minute failover

Highly-available Robust, long-lived product Supported by entire Storage

Foundation software stack Local, campus, or WAN cluster options

SAN storage

From 1 to 64 nodes

256 TB Max FS

Scale-out applications


Performance for Grid/Parallel apps

•Minimal application overhead

• File access scales linearly as additional nodes are added

• Single namespace for database copies

Cluster File System Cluster File System

http://www-306.ibm.com/software/websphere

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Cluster File System Scalability


CFS Linear scalability

Confidently increase workload capacity

Maximize Availability / Minimize Complexity Eliminate Storage Failovers with CFS


Classic Clustering May Not Be Fast Enough Business Applications

Needing Maximum Uptime

Passive Server

Failed Server Active Server

Client

Active Server

Recovery Steps • Detect failure • Un-mount file

system • Deport disk group • Import disk group • Mount file system • Start application • Clients reconnect

File System

Native clustering

File System

Native clustering

Failover as Fast as Application Restart

Maximize Availability / Virtualize Confidently Eliminate Storage Failovers with CFS


Failed Server

Client

Active Server

Veritas Storage Foundation


Veritas Storage Foundation


Veritas Cluster File System

Business Applications

Needing Maximum Uptime

Hyper-V

Recovery Steps • Detect failure • Un-mount file

system • Deport disk group • Import disk group • Mount file system • Start application • Clients reconnect

http://www.linux-kvm.org/page/Main_Page


DB Clones

Compress De-Dupe

Compression Cloning & Snapshots De-duplication

Increase host storage efficiencies Compress where applicable Reduce storage consumption using

cloning and snapshot efficiently Reduce data duplication Enable thin provisioning & reclamation

Storage Foundation Cluster File System

Thin Reclamation

Store Information More Efficiently




















Storage Foundation

Replication

Full Snapshot

Optimized Snapshot

FS

File System Checkpoint

FileSnap

Reduce Storage Consumption

Efficient data management

Reduce storage costs

Improve Data Management























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Block Level IP Replication

Application Replication/ VFR

Cost Effective Replication


Veritas File System Veritas File System

Veritas File Replicator - Linux

Reduce replicated storage consumption

Avoid expensive per TB pricing models

Reduce management complexity

Reduce data & configuration risk

Active File Copy

Centralised Management

Periodic IP based Replication

Directory & File Level Granularity




• Fast failover


Scale Out Storage





Production

DR





bulletproof your linux environment - vox.veritas.com b10.pdf · rhel/sles hypervisor sf sf vcs vcs...

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