Server Virtualization with EMC Storage
Aviv Waiss - Server Consolidation Section Head
VMware Virtualization Basics
y
Software tied to hardware
y
Single OS image per machine
y
One application workload per OS
Î
Inflexible, costly infrastructure
Before Virtualization:
After Virtualization:
y
Virtualization Layer is a software
abstraction that allows operating
systems and applications to run on
virtual hardware that is distinct from
the physical hardware
Key Properties of Virtual Machines
Partitioning
y Run multiple operating systems on one physical machine y Divide system resources between virtual machines
Key Properties of Virtual Machines
Isolation
y Fault and security isolation at the hardware level y Advanced resource controls preserve performance
Partitioning
y Run multiple operating systems on one physical machine y Divide system resources between virtual machines
Key Properties of Virtual Machines
Encapsulation
y Entire state of the virtual machine can be saved to files y Move and copy virtual machines as easily as moving and
copying files
Isolation
y Fault and security isolation at the hardware level y Advanced resource controls preserve performance
Partitioning
y Run multiple operating systems on one physical machine y Divide system resources between virtual machines
Key Properties of Virtual Machines
Hardware-Independence
y
Provision or migrate any virtual machine to any similar or
different physical server
Encapsulation
y Entire state of the virtual machine can be saved to files y Move and copy virtual machines as easily as moving and
copying files
Isolation
y Fault and security isolation at the hardware level y Advanced resource controls preserve performance
Partitioning
y Run multiple operating systems on one physical machine y Divide system resources between virtual machines
HW HW HW HW HW HW HW HW HW HW HW HW HW HW HW HW HW HW
Transforming hardware and capacity management
VIRTUALIZED
PHYSICAL
POOLED
R P 1 R P 2INDUSTRY FIRSTS:
Logical Resource Pooling (RP)Automate resource assurance for critical applications
Automatic availability for all applications
VMWARE HA
VMware Lowers Cost of Clustering
Cluster-in-a-box
Protects against operator error, application and operating system crashes
Cluster-across-boxes
Protects against operator error, application and operating system crashes, and hardware failure
Cluster between physical and virtual machines
Low-cost N+1 redundancy with a great reduction in hardware required
Use MSCS clustering for automated failover between physical and virtual machines
Options for Disaster Recovery
Physical to Physical
Today’s scenario without virtual
infrastructure
Requires identical disaster recovery site
Physical to Virtual
y
Reduces cost, improves time to recovery,
and increases flexibility
Virtual to Virtual
y
Greatest flexibility, lowest cost, best time
to recovery
Result: 16.5 minutes to failover!
Multiple physical machines to
access the same storage
Multiple ESX Servers see the same VMFS volumes to provide:
Workload balancing via easy VM relocation
High availability using clustered applications
Rapid provisioning using a Template Repository
Native MPIO multipathing support
provides I/O-channel
redundancy
Maintains VM access to virtual disk files in case of HBA or SAN-path failure
VMware ESX Server with VMFS
SAN
VM A
ESX1 ESX2 ESX3
Node 1 Node 2
Node2.vmdk Node1.vmdk
A.vmdk
Data.vmdk W2ksvr.vmdk
SANVMFS1 SANVMFS2 Templates
SAN-based Boot Support for ESX Server
Advantages of booting ESX Server off the
SAN:
Improved availability—Boot device
protected on networked storage
Improved flexibility—Servers can be
easily replaced in case of failures
Reduced complexity—Leverage best
practices for backup and restore
Virtual Machines (VMs) VM boot ESX boot ESX Server V3.0
Local Replication with ESX Server
Physical-to-Virtual
y
Reduce total cost of ownership by
consolidating backup servers onto
one ESX Server
– Virtual Machines on the backup / mount
ESX Server can access the replicas to back up application data
– Supported for application data and RDMs Production
servers Backup server Replica of Linux Linux Replica of Windows Windows Intel architecture Virtualization layer SOFTWARE HARDWARE
Virtual-to-Virtual
y
Reduce total cost of ownership by
consolidating production and
backup servers
y
Reduce backup windows by using
replicas for backup source
– Reduce application downtime,
or the time application spends in Hot Backup mode
Production
ESX Servers Replica of Linux Linux Replica of Windows Windows Backup server Intel architecture Virtualization layer SOFTWARE HARDWARE Intel architecture Virtualization layer SOFTWARE HARDWARE
Remote Replication with ESX Server
Physical-to-Virtual:
y Reduce total cost of ownership at the secondary site by consolidating servers
– ESX Server at the secondary site can be used for remote backup, or as disaster-recovery servers
y Improve recovery-time objectives
(RTOs) with VirtualCenter cloning Production servers Intel architecture Virtualization layer SOFTW A R E H A RD W A RE Recovery ESX Server
Virtual-to-Virtual:
y Reduce TCO by consolidating production and backup serversy Improve production performance with
array-based replication
y Potential expanded uses for:
– Application testing, remote backups, reporting, VMotion transfers Intel architecture Virtualization layer SOFTWARE HARDWARE Intel architecture Virtualization layer SOFTWARE HARDWARE Recovery ESX Server Production ESX Servers
Virtual Environments to Enable Disaster Recovery
Secondary failover location Primary data center
Intel architecture VMware: Virtualization layer
SOFTW A R E H A RD W A RE AutoStart mirroring Intel architecture VMware: Virtualization layer
SOFTW A R E H A RD W A RE
Virtual to Virtual for Local Protection
Solution: AutoStart, plus VMware ESX Server
(AutoStart provides mirroring)
Benefits: Provide business restart with substantial
reduction in capital investment; excellent testing platform
Secondary failover location Primary data center
AutoStart mirroring
AutoStart
AutoStart AutoStart
Intel architecture VMware: Virtualization layer
SOFTW A R E H A RD W A RE
Physical to Virtual for Metro Area
Solution: AutoStart, plus VMware ESX Server
(AutoStart provides mirroring)
Benefits: Provide remote business restart with
lower total cost of ownership at distances of less than 10 km
Physical to Virtual for Extended Distances
Solution: AutoStart plus RepliStor or SRDF plus
VMware ESX Server
Benefits: Provide business restart over any distance
with substantial reduction in capital investment
Secondary failover location Primary data center
RepliStor/SRDF
AutoStart
AutoStart AutoStart
Intel architecture VMware: Virtualization layer
SOFTW A R E H A RD W A RE
Backup anytime - VCB
VMWARE
CONSOLIDATED
BACKUP
Decouple backup from production VMs 20-40% better resource utilization
Pre-integrated with 3rd party backup products
SAN BACKUP BACKUP BACKUP BACKUP BACKUP
VMware Support for EMC Storage-based Replication
Local Replication Remote Replication Data Migration Description
• Creates local point-in-time
copy, also called a Business Continuance Volumes (BCVs)
• Creates
host-independent remote copies of data over distance
• Provides data mobility
and migration from a source to a target volume with minimal disruption Symmetrix replication support • TimeFinder/Mirror, TimeFinder/Clone, TimeFinder/Snap • TimeFinder/Exchange Integration Module • TimeFinder/SQL Integration Module • TimeFinder/Consistency Groups • SRDF/S • SRDF/A • SRDF/CE for MSCS • SRDF/Consistency Group
• Open Replicator for
Symmetrix
• Open Migrator/LM
CLARiiON replication support
• SnapView (clones and
snapshots)
• MirrorView/S • MirrorView/A
• SAN Copy
