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1 © 2015 Fujitsu Technology Solutions
Agenda
What are Virtual Volumes?
Advantages of VVOLs
Technical implementation of VVOL for ETERNUS
Usage
2 © 2015 Fujitsu Technology Solutions
What are Virtual Volumes?
VM consists of LUN(VVOL) on VVOL Datastore.
Datastore = Pool
VMDK = LUN
VM based storage management is possible.
VM consists of files (VMDK Files) on VMFS Datastore.
Datastore = LUN
VMDK != LUN
ETERNUS DX
ESXi Server VM VM
VMFS Datastore
VMDK VMDK VMDK VMDK
LUN
Conventional storage VVOL storage
ETERNUS DX
ESXi Server VM VM
VVOL Datastore
Storage Container
VMDK
VVOL
(LUN)
VMDK VMDK VMDK
VVOL
(LUN)
VVOL
(LUN)
VVOL
(LUN)
3 © 2015 Fujitsu Technology Solutions
Advantages of VVOLs
Allocation and consumption of storage is faster with fewer step → less likely to encounter manual errors
Deployment process is well suited to automation
Each VM can be managed individually resulting in more optimization options for performance and protection
Easy scalability through extendibility of existing vvol datastores by adding additional drives/RAID groups
Automated backup/snapshot configurable via vCenter
4 © 2015 Fujitsu Technology Solutions
Advantages of VVOLs
Only VMware administrator’s operations required on management phase.
No storage administrator operations required.
Simplified virtual machine creating operation
Conventional storage
Storage administrator
① Asking VM’s requirements
② Creating LUNs
③ Setting affinities
VVOL storage
Storage administrator
VMware administrator
④ Recognizing volumes
⑤ Creating datastores
⑥ Creating VMs by wizard
No operation.
VMware administrator
① Creating VMs by Wizard (*)
Creating VVOL (LUN)
Setting access path
Recognizing volumes
(*) Using vCenter, all storage admin’s operations for
VM creation are done automatically.
5 © 2015 Fujitsu Technology Solutions
Advantages of VVOLs
The policy can manage a combination of QoS & AST feature.
Applying this policy improves I/O performance for each VM.
It reduces performance design and tuning costs.
Profile driven storage
Capacity Ratio
High
Middle Low
Middle
Low
Capacity Ratio
High
Middle
Low
Band
width
Band
width Band
width
High
Middle Low
High
Middle
Low
High
Middle
Low
High
Virtual Storage Pool
Capacity Ratio
Automated Storage Tiering
Quality of Service
VVOL storage
Optimization is
always
possbile for
each VM.
VM VM VM
SSD Online Nearline
Change
Capacity
Ratio
SSD Online Nearline
Virtual Storage Pool
Capacity Ratio High
Middle
Low
High
Middle Low
Band
width
Automated Storage Tiering
Quality of Service
Conventional storage
VM VM VM
Change
Capacity
Ratio
Optimization for each
VM is difficult.
7 © 2015 Fujitsu Technology Solutions
Technical implementation of VVOL for ETERNUS
Storage Management → ETERNUS SF > 16.2
Storage Cruiser Standard License is required
AST needs Optimization Option
ACM Local Copy License is needed for Clone Backup
QoS Service Option is required for Automated QoS
Communication via VASA Provider
VMware vSphere API for Storage Awareness
Only available for Windows → requires Windows based ESF installation
Information about disc array functions
• Snapshot, replication status, RAID level, thick/thin provisioning
Virtual Machine Management → VMware vSphere > 6.0
Starting from Standard Edition
Essentials Edition is not supported
8 © 2015 Fujitsu Technology Solutions
Technical implementation of VVOL for ETERNUS
ETERNUS VASA Provider
9 © 2015 Fujitsu Technology Solutions
Technical implementation of VVOL for ETERNUS
VASA Provider provides Protocol Endpoints (PE) to vSphere
PEs are replacing LUNs und mount points
They are handling the administration of paths und policies
Can be connected via FC, iSCSI und NFS
ETERNUS DX only supports FC and iSCSI
All connected host from a cluster can access them simultaneously
10 © 2015 Fujitsu Technology Solutions
Technical implementation of VVOL for ETERNUS
The maximum number of virtual machines that could be stored using virtual volumes is limited by the number of supported volumes of the ETERNUS
The number of needed volumes for virtual machines is made up of
Sample with a VM
VM config (.vmx)
VM Swap
VM disk 1 (c:\)
VM disk 1 (d:\) VM-1
VM-1‘
VM-1-SnapShot 1 VM-1-SnapShot 2
16 x
1x Clone
2x Snapshot's Original VM
11 © 2015 Fujitsu Technology Solutions
Technical implementation of VVOL for ETERNUS
Volumes for virtual machines
( 2 + Number of virtual disks ) x Number of virtual machines
Volumes for full backup
( Number of virtual machines x Number of virual disks ) x Clone backup
Volumes for differential backup
Number of virtual machines x ( Number of virtual disks + 1) x ( Number of snapshot generations to save + 1 )
12 © 2015 Fujitsu Technology Solutions
Technical implementation of VVOL for ETERNUS
Volumes for snapshot
( 1 + Number of virtual disks) x Number of snapshots
Volumes for suspension
Number of suspension
Volumes for system configuration
Number of volumes for Flexible Tier function* + Number of RAID groups + Number of optionally created volumes + Number of VVOL datastores + 1
*32 for DX100/200 – 64 for DX500/600
13 © 2015 Fujitsu Technology Solutions
Technical implementation of VVOL for ETERNUS
ETERNUS DX offers the following policies for profile-driven storage:
Virtual Machine Backup (Clone, Snapshot)
• automatic/manual
• Interval, time, …
Automated Storage Tiering
• Number of layers, Quota Shares
Automated QoS
• Priority level, response time
Cache (DX100/200: Extreme Cache Pool – DX500/600: Extreme Cache)
Security (Encryption)
14 © 2015 Fujitsu Technology Solutions
Usage
1. Registration of infrastructure components (Host, Switch, Storage) in ETERNUS SF
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