module 02_data ontap

7/31/2019 Module 02_Data ONTAP

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2/98

2008 NetApp. All rights reserved. 2

Module Overview

In this module, we will cover the following:

NetApp core software technology

Specific on-box and off-box features of DataONTAP

NVRAM functionality

NetApp SnapShot technology

Describe NetApp RAID-DP implementation


3/98


Module Objectives

By the end of this module, you should be able to:

Identify NetApp core software

On-box features of Data ONTAP

Off-box features of Data ONTAP

Describe the functionality of NVRAM

Describe the values of NetApp RAID 4 andRAID-DP technology

Demonstrate NetApp Snapshot whiteboard


4/98


Core SoftwareTechnology


5/98


6/98


Data ONTAP

WAFL- Core technology

NVRAM

RAID 4 or RAID-DP

Snapshot

FlexVol

FC and Ethernet NetworkConnectivity

ProtocolSupport

On-boxvalue

addedsoftware

Off-Box StorageManagement

Off-Box AdministrationTools

Core Software Technology

Data ONTAP 7.X for FAS/NearStore Data ONTAP 7.X for V-Series

Data ONTAP GX 10.X


7/98 2008 NetApp. All rights reserved. 7

Data ONTAP Components:WAFL Versus Traditional File Systems

WAFL Traditional File Systems

File data location Anywhere on disk Most of disk

Metadata location Anywhere on disk (exceptroot inode)

Dedicated regions

Updates to existing data /metadata?

Put in unallocated blocks(originals intact)

Overwrite existing data

File system consistency? Guaranteed by design Careful ordering of all writesrequired

Crash recovery? Reboot, ready to go Slow, complicated fsck

Interaction with RAID Can write full stripes, utilizingbandwidth

Has to seek for all updates

Snapshot copies /

versions?

By design Requires extra copy on write



NVRAM / RAID-DP



NVRAM Operation

Client Storage System

Dual-attached FC

GbE



NVRAM Operation (Cont.)

Client

Operation is logged in battery-

backed RAM and is now safefrom controller failure

Operation is also placed incontrollers main memory

where further processing will

occur

Storage System

Client free to forget about it

its done! Purely electronic, memory-to-

memory path

NIC = Network Interface Card

NIC MainMemory

NVRAM

BATT+

-

NICMainMemory

Operation

ack



Client

Activities involving theoperation consume mainmemory

Up to 10 seconds can elapsebetween CPs while many

other ops arrive (not shown)

Storage System

The organized data from theoperations are written to disk

NVRAM is zeroed

NVRAM Operation (Cont.)

NIC MainMemory

NVRAM

BATT+

-

NICMainMemory



NVRAM Benefits for Both SAN and NASEnvironments

Battery life after shutdown

Clean

Weeks

Dirty

3 to 7 days

Partial to full charge

NVRAM6

IB CFOConnectors

512-MB/2-GB DIMM 3-Cell Battery

2-Cell Battery(Added into 2GB version only)

NVRAM5Blinking LED Memory

ClusteredFailover

Ports

Tavor 4x (10 Gb/s)

InfiniBand

5.1Ah Battery

(Dirty shutdown life3-7 days)



Data ONTAPComponents:Data Layout RAID 4

Tetris writes

Try to fill stripes

Recalculate parity

RAIDStripe

WriteChain

Parity Drive



RAID-DP is dual / diagonal parity data protection

NetApp RAID-DP is an implementation of the industry standardRAID 6 as defined by SNIA

SNIA definition recently updated to include NetApp RAID-DP

http://www.snia.org/education/dictionary/r/

Data ONTAP Components:RAID-DP

RAID-DPprotects againstany two-disk failure

D

3

D

1

D

2

2

D

3

2

P

9

7

DP

12
http://www.snia.org/education/dictionary/r/http://www.snia.org/education/dictionary/r/



NetApp Snapshot



Core Software Technology

Data ONTAP


NVRAM

RAID 4 or RAIS-DP

Snapshot

FlexVol


ProtocolSupport

On-boxvalue

addedsoftware




Data ONTAP GX 10.X



NetApp Greatest Hits

RAID-DP

95% SnapMirror

81%

FlexClone

95% SnapVault

76%

Snapshot

technology 94% FlexVol performance 73%

Single OS 89% SnapManager

69%

SnapRestore

89% Data ONTAP benefits 68%

WAFL integration 86% FlexVol provisioning 68%

Multi-protocol 86% V-Series 64%

Data ONTAP simplicity 85% FlexVol priorities 61%

WAFL file system 85% SnapDrive software 60%

FlexVol virtualization 85% LockVault

60%iSCSI leadership 85% NAS Leadership 59%

SnapLock

83% Forced disk consistency 40%



A

B

C

A

B

C

A

B

C

NetApp Snapshot Technology

Take snapshot 1

Copy pointers only

No data movement

Blockson the Disk

A

B

C

A

B

C

Blocks inLUN or File

Snap 1



A

C

B

A

C

B


Blockson the Disk


Take snapshot 1

Continue writing data

Take snapshot 2

Copy pointers only

No data movement

A

B

C

B1

B1

A

B

C

Snap 2Snap 1



A

B

C

A

B1

C

A

B

C


Blockson the Disk


Take snapshot 1


Take snapshot 2

Copy pointers only

No data movement


Take snapshot 3

Simplicity of model

Best disk utilization Fastest performance

Unlimited snapshots

A

B

C

B1

C2

C1

B1

A

Snap 3Snap 2Snap 1


21/98 2008 NetApp. All rights reserved. 22NetApp Confidential -- Do Not Distribute

Snapshot Performance

Snapshots Point-in-time copy

Created in a few seconds

No performance penalty

TPC-C publishedwith 5 activesnapshots


22/98

2008 NetApp. All rights reserved. 23NetApp Confidential -- Do Not Distribute

Competitors Snapshots


23/98



Blockson the Disk

Others Snapshots

Take snapshot 1

Create copy-outregion 1

Create pointers to oldblocks and copy-out

A

B

C

A

B

C

A

B

C

A

B

C

CopyOut 1

A

B

C

Snap 1


24/98



Blockson the Disk

B

Others Snapshots

Take snapshot 1


Block changes

Read old block; write tocopy-out region

Updates snap pointer tocopy-out region

Update block on disk

One write requires:

1 read (old data)

1 write (old data)

1 write (new data)

A

C

A

C

CopyOut 1

BBB1

A

B

C

Snap 1

B1


25/98


A

B

C

Snap 1

A

B

C

Snap 1

copyout 1

A

B1

C

Snap 2

CopyOut 2


Blockson the Disk

Others Snapshots

Take snapshot 1


Take snapshot 2



A

B

C

A

C

B1

CopyOut 1

CopyOut 2

B1

B


26/98



Blockson the Disk

Snap 2

A

B

C

A

B1

C

CopyOut 2

Others Snapshots

Take snapshot 1


Take snapshot 2


Block changes

Old block written to allcopy-out regions

Update all snap pointersto copy-out regions


One write requires:

1 read

3 writes

A

B

C

A

B1

CopyOut 1

CopyOut 2

B1

A

B

C

Snap 1

A

B

C

Snap 1

CopyOut 1

B

C2 CCCC2


27/98


Snapshot Comparison

The NetApp Approach

Absolute minimumoverhead

Guarantees disk spaceefficiency

No data movement Guarantees disk

performance

Enables more

snapshots

Space on disk is betterPerformance is better

Number of snapshots is better

UsedDisk

Space

Side-by-sidecomparison aftertwo snapshots

NetApp Others

A

B1

B

C

C

C2

A

B

C

B1

C2

C

C2


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C2

A

B1

Snap 3

A

B1

C

Snap 2

Using Snapshot Copies to Restore Data

Block C2 is bad

A

B

A

B

C

B1

B1

C2

C2

A

B

C

Snap 1

C2

C2

C2

Blockson the Disk



29/98



Block C2 is bad

Let users self-restorefrom .snapshot directoryin NAS environments

A

B1

Snap 3

A

B1

C

Snap 2

A

B

C

A

B

C

B1

B1

C2

C2

C2

A

B

C

Snap 1

C2

C2

C2

Blockson the Disk


.snapshotdirectory


30/98


A

B1

C


Block C2 is bad


Restore from snapshot

with SnapRestore Move pointers from

good snapshot to filesystem

Single File SnapRestore Allows restoration of a

single file from asnapshot

Can take secs. To mins.

depending on file size

SnapRestore

Snap 3

A

B1

C

Snap 2

B

C

A

B

C

B1

C2

A

B

C

Snap 1

A

B1

C2C2

A

B1

C2

C2

Blockson the Disk



31/98


Snapshot Performance

Snapshot Technology Point-in-time copy

Created in a few seconds

No performance penalty

TPC-C publishedwith five activesnapshot copies


32/98


Competitors Snapshots


33/98



Blockson the Disk

Others Snapshots

Take snapshot 1



A

B

C

A

B

C

A

B

C

A

B

C

CopyOut 1

A

B

C

Snap 1


34/98



Blockson the Disk

B

Others Snapshots

Take snapshot 1


Block changes

Read old block; write tocopy-out region

Updates snap pointer tocopy-out region


One write requires:

1 read (old data) 1 write (old data)

1 write (new data)

A

C

A

C

CopyOut 1

BBB1

A

B

C

Snap 1

B1


35/98


A

B

C

Snap 1

A

B

C

Snap 1

copyout 1

A

B1

C

Snap 2

CopyOut 2


Blockson the Disk

Others Snapshots

Take snapshot 1


Take snapshot 2



A

B

C

A

C

B1

CopyOut 1

CopyOut 2

B1

B


36/98



Blockson the Disk

Snap 2

A

B

C

A

B1

C

CopyOut 2

Others Snapshots

Take snapshot 1


Take snapshot 2


Block changes

Old block written to allcopy-out regions

Update all snap pointersto copy-out regions


One write requires:

1 read

3 writes

A

B

C

A

B1

CopyOut 1

CopyOut 2

B1

A

B

C

Snap 1

A

B

C

Snap 1

CopyOut 1

B

C2 CCCC2


37/98


Snapshot Comparison

The NetApp Approach

Absolute minimumoverhead

Guarantees disk spaceefficiency

No data movement Guarantees disk

performance

Enables more snapshot

copiesSpace on disk is betterPerformance is better

Number of snapshot copies isbetter

UsedDisk

Space

Side-by-sidecomparison after

two snapshotcopies

NetApp Others

A

B1

B

C

C

C2

A

B

C

B1

C2

C

C2


38/98


C2

A

B1

Snap 3

A

B1

C

Snap 2


Block C2 is bad

A

B

A

B

C

B1

B1

C2

C2

A

B

C

Snap 1

C2

C2

C2

Blockson the Disk




39/98


Using Snapshot Copies to Restore Data(Cont.)

Block C2 is bad


A

B1

Snap 3

A

B1

C

Snap 2

A

B

C

A

B

C

B1

B1

C2

C2

C2

A

B

C

Snap 1

C2

C2

C2

Blockson the Disk


.snapshotdirectory



40/98


A

B1

C

Using Snapshot Copies to Restore Data(Cont.)

Block C2 is bad


Restore from snapshot

with SnapRestore Move pointers from

good snapshot to filesystem

Single File SnapRestore Allows restoration of a

single file from asnapshot

Can take secs. to mins.depending on file size

SnapRestore

Snap 3

A

B1

C

Snap 2

B

C

A

B

C

B1

C2

A

B

C

Snap 1

A

B1

C2C2

A

B1

C2

C2

Blockson the Disk



41/98

Exercise

Module 2: Snapshot Whiteboard

Estimated Time: 20 minutes


42/98


Snapshot Whiteboard Exercise

The next exercise is a script of how to demonstrate

Snapshot on the whiteboard

Take 10 minutes to study the method of presentation

Volunteers will come to the whiteboard and deliver theSnapshot presentation to the class

Be ready to:

Walk through how NetApp Snapshot technology

works and explain what happens on changes ofdata

Explain how competitors do snapshots and whathappens to them on changes


43/98


Core SoftwareTechnology


44/98


Core Software technology

Data ONTAP


NVRAM

RAID 4 or RAID-DP

Snapshot

FlexVol


P

rotocolSupport

On-boxvalue

addedsoftware




Data ONTAP GX 10.X


45/98


NOW-site Software Download Page

http://now.netapp.com/NOW/cgi-bin/software/
http://now.netapp.com/NOW/cgi-bin/software/http://now.netapp.com/NOW/cgi-bin/software/http://now.netapp.com/NOW/cgi-bin/software/http://now.netapp.com/NOW/cgi-bin/software/


46/98


Data ONTAP 7.0 Release Model

http://now.netapp.com/NOW/products/ontap_releasemodel/post70.shtml

P1 Pn... P1 Pn... P1 Pn... P1 Pn...

GD

GARC1 RCn...

7.0RC1 7.0RCn 7.0 7.0.1 7.0.2 7.0.3

MaintenanceReleases

Patch Releases(bi-weekly)

Release Candidate Initial posting to NOW

General Availability Key certifications required

for solution sets Basic client compatibility Tier 1 partner certification

General DeploymentAdoption metrics Full solution sets Full client compatibility

Time

1-2 months before GA GA date 3-4 months after GA 6-7 months after GA
http://now.netapp.com/NOW/products/ontap_releasemodel/post70.shtmlhttp://now.netapp.com/NOW/products/ontap_releasemodel/post70.shtml


47/98


Release Metrics

http://now.netapp.com/NOW/cgi-bin/metrics
http://now.netapp.com/NOW/cgi-bin/metricshttp://now.netapp.com/NOW/cgi-bin/metricshttp://now.netapp.com/NOW/cgi-bin/metricshttp://now.netapp.com/NOW/cgi-bin/metrics


48/98


Data ONTAP Convergence

2007

2008

2009

2010

7.2 GordonBiersch 10.0 Tricky

7.3 Iron City

Boilermaker

Rolling Rock

Rolling Rock +1

10.1 Whirlwind

7.4 Kingfisher10.2 Stormking

10.0.x Tricky.x

Challenges in High-Performance


49/98


Challenges in High PerformanceComputing

Insatiable demand forperformance

Storage consumptionhard to predict

Must providecontinuous operations

Recover rapidly fromerrors and disasters

Get the most from ITinvestments

Reduce complexity ofhigh performanceapps

client code

client codeclient code

client code

client code


client code

client code


client code

client code


client code

client code


client code

client code


client code

client code


client code

client code


client code

client code


client code

client code


client code

client code


client code

client code


client code

client code


client code

client code


client code

client code


client code

client code


client code

ClientCode

Performance demands stress traditional storage

Linux Cluster

MgmtI/F 2

Data Loss

x

CPU100%

!! ERROR !!Disk Full

MgmtI/F 1

HardwareFailure

xIdle

ZZZ


50/98


Projects

A B C

A2 A3 B1 B2 C1 C2 C3A1

Servers

GlobalName -Space

Data ONTAP GX-Global Namespace

Simplicity

All clients see all data

Simplifies managingmount points

No client changes

Transparency Expansion

FlexVol move

Failover

Scalability Grow namespace to

Petabytes

Manageability

A

B

C

A1

A2A3

B1

B2C1

C2 C3

Virtual

Server

Flexible scalable storage system


51/98


Projects

A B C

A2 A3 B1 B2 C1 C2 C3A1

Servers

Data ONTAP GX-Striped Flexible Volumes

Customer Benefits

Scalability andperformance

Flexible volumes thatspan many controller

nodes Performance to multi-

GBps throughput

Scale FlexVol size tohundreds of terabytes

High levels of performance and scalability

B1

C1

B B2

A1 C3

C

A3 C2A2

StripedVolume X

GXCluster

9 10

11 12

1 2

3 4

5 6

7 8

GlobalName -Space

D ONTAP GX T E i


52/98


Projects

A B C

A2 A3 B1 B2 C1 C2 C3A1

Servers

Data ONTAP GX-Transparent Expansion

Customer Benefits

Rapidly/seamlesslydeploy new storageand/or applications

No downtime required

Transparent to computefarm, namespace isunchanged

A

CA1

A2

A3 B1

B2

C1

C2

C3

BB

GlobalName -Space

D ONTAP GX L d B l i


53/98


Projects

A B C

A2 A3 B1 B2 C1 C2 C3A1

Servers

Data ONTAP GX Load Balancing

Customer Benefits

Optimize performance

Maximize disk utilization

No disruption toapplication

No need to touch clientsbecause namespace isunchanged

Example

Optimize project Aresponse time

A

B

C

A1

A2A3

B1

B2C1

C2 C3

Project A gets dedicated resources

GlobalName -Space

O B V l Add d S f


54/98


On-Box Value-Added Software

Data ONTAP


NVRAM

RAID 4 or RAID-DP

Snapshot

FlexVol


P

rotocolSupport

On-boxvalue

addedsoftware




Data ONTAP GX 10.X

Data ONTAP On Box Technology


55/98


Data ONTAP On-Box Technology

Snapshot

Instant self-service file recovery for end users.

SnapRestoreInstant volume recovery, or large individual files.

SnapMirrorAsync and sync remote replication over inexpensiveIP. FC now also supported.

SnapVault

Heterogeneous super-efficient hourly disk-basedonline archiving with versioning up to weeks or

months.

SyncMirrorSynchronous RAID-1 local mirroring via disk shelfplexes. RAID-1 remote mirroring product for DR isMetroCluster.

SnapLockSEC-compliant disk-based WORM technology

LockVault

Heterogeneous data retention solution forunstructured data.

Location of the Quick Reference Guides:http://www.netapp.com/mycommunities/PartnerCenter/tools/spotlight-presentations.html

SnapSuite Quick Reference Guide

$ No License Fee

$ License Fee

plex0 plex1

IP

WindowsLinuxSolarisHP-UXAIX

WindowsLinux

SolarisHP-UXAIX

$

$

$

$

$

$

$

Oth O B T h l i
http://www.netapp.com/mycommunities/PartnerCenter/tools/spotlight-presentations.htmlhttp://www.netapp.com/mycommunities/PartnerCenter/tools/spotlight-presentations.htmlhttp://www.netapp.com/mycommunities/PartnerCenter/tools/spotlight-presentations.htmlhttp://www.netapp.com/mycommunities/PartnerCenter/tools/spotlight-presentations.html


56/98


FlexVol

FlexClone

FlexCache

FlexShare

Other On-Box Technologies

Priority

FlexVols

Aggregate

Disks DisksDisks

$

$

$

$

Oth O B T h l i


57/98


SyncMirror

(SnapMirror vs. SyncMirror)

Clustering

MetroCluster

MultiStore/Vfiler vs. V-Series/gFiler

Other On-Box Technologies

plex0 plex1

Vfiler A

$

$

$

$

FC d Eth t C ti it


58/98


FC and Ethernet Connectivity

Data ONTAP


NVRAM

RAID 4 or RAID-DP

Snapshot

FlexVol


P

rotocolSupport

On-boxvalue

addedsoftwar

e




Data ONTAP GX 10.X

Data ONTAP Components:


59/98


pThe Network Stack

Storage System/Data ONTAPClient

Client

Client

Client

Client

Disks

Network

Cluster Partner

Cluster

Interconnect

StorageRAID

WAFL

ProtocolsNetwork

Stack

NVRAM

Clustering

Data ONTAP Protocol S pport


60/98


Data ONTAP Protocol Support

Data ONTAP


NVRAM

RAID 4 or RAID-DP

Snapshot

FlexVol


P

rotocolSupport

On-boxvalue

addedsoftwar

e




Data ONTAP GX 10.X



61/98


pProtocols

Filer/DataONTAPClient

Client

Client

Client

Client

Disks

Network

Cluster Partner

Cluster

Interconnect

StorageRAID

WAFL

ProtocolsNetwork

Stack

NVRAM

Clustering



62/98


pData Access Protocols

The four core data access protocols:

$ CIFS (Common Internet File System, developedby Microsoft)

$ NFS (Network File System, developed by Sun

Microsystems, v2, v3, v4)$ FCP (Fibre Channel Protocol)

$ iSCSI [SCSI over TCP/IP]

$ No License Fee$ License Fee



63/98


pOther Protocols

HTTP, HTTPS

Not a full-fledged HTTP server

FTP

Full FTP and TFTP implementation

NDMP

SNMP

SMTP

Telnet, RSH, SSH, RPC

Off Box Storage Management


64/98


Off-Box Storage Management

Data ONTAP


NVRAM

RAID 4 or RAID-DP

Snapshot

FlexVol


P

rotocolSupport

On-boxvalue

addedsoftwar

e



Data ONTAP 7.X for FAS/NearStoreData ONTAP 7.X for V-Series

Data ONTAP GX 10.X

External to Data ONTAP Products


65/98


External to Data ONTAP - Products

SnapDrive

SnapManager

SnapManager for Exchange

SnapManager for Oracle

SnapManager for SAP

SnapManagerfor SharePoint

SnapManagerfor SQL Server



66/98



Open System SnapVault

VFM (Virtual File Manager)

NetApp DataFort

IS1200



67/98



File Storage Resource Manager

VTL

NearStore Personality License

External to Data ONTAP Administration


68/98


External to Data ONTAP - Administration

Operations Manager

Protection Manager

Storage Manager

Appliance Watch

MOM

OpenView

TSM

CommandCentral

Storage (Symantec)

Storage Layout Agenda


69/98


Storage Layout Agenda

Aggregate review

Volume creation and management

MultiStore

Competitive layout

Data ONTAP 7.0 Storage Terminology:


70/98


Aggregate

Aggregate collection of physical disk space used as acontainer to support one or more flexible volumes

Aggregates are the physical layer

RG 0

RG 1

RG 2

Aggregate

Basic Aggregate Attributes


71/98


Basic Aggregate Attributes

Default RAID type = RAID-DP

One or more RAID groups

RAID group size definable

Supports SyncMirror

Aggregate snapshot support (default enabled)

Target all flexible volumes contained withinaggregate

Aggregate Status Information: FilerView


72/98


Aggregate Status Information: FilerView

To get aggregate properties click on aggregate name

Aggregate Status Information:


73/98


FilerView Aggregate Properties Screen

Get to other details about the aggregate from

the buttons at the bottom of this screen



74/98


RG 0

RG 1

RG 2

Aggregate

Traditional Volume

Traditional volume collection of physical disk space that is usedto support a single volume

Traditional volumes are directly tied to an aggregate

Traditional volumes are both the physical layer and the logical layer



75/98


Flexible volume collection of disk space allocated as a subsetof the available space within an aggregate

Flexible volumes are loosely tied to their aggregate

Flexible volumes are the logical layer

RG 0

RG 1

RG 2

Aggregate

Flexible Volume

FlexVol1

FlexVol1

FlexVol1

FlexVol2

FlexVol2

FlexVol2

Flexible Volume Creation:


76/98


FilerView Example

Basic Flexible Volume Status Information:


77/98


FilerView

Flexible volume information is provided via FilerView

from Volumes Manage and Volume Properties screens

Click on volume name forvolume properties

If aggregate name,flexible volume

Filter by: Volume Type

Volume Information Commands


78/98


Volume Information Commands

NetApp> vol status

Volume State Status Options

vol0 online raid4, trad root, nosnap=on

flex1 online raid_dp, flex

NetApp> vol status flex1

Volume State Status Optionsflex1 online raid_dp, flex

Containing aggregate: 'aggr1'

NetApp> vol container flex1

Volume 'flex1' is contained in aggregate 'aggr1'

NetApp> vol size flex1

vol size: Flexible volume 'flex1' has size 10g.

Both traditional and flexible volumes are visible

If it is a flexible volume, theaggregate name appears

Support commands

unique to flexiblevolumes

Aggregate: Flexible / Traditional VolumeI i i l S All i (NAS D f l )


79/98


Initial Space Allocation (NAS Defaults)

WAFL Overhead

WAFL Traditional

volume

10%

90%

80%

snapshot Reserve

(20% Adjustable)

WAFL Overhead

WAFL AggregateSpace

10%

90%95%

Aggregate Space

FlexVol Space

Aggregate snapshot Reserve

FlexVol1

FlexVol#n

.snapshot 20% Adj.

80%

.snapshot 20% Adj.

80%

(5% Adjustable)

Flexible Volume CreationS G T


80/98


Space Guarantee Types

Flexible volume creation can be performed

using CLI command or FilerViewAllocated from containing aggregates file

systems space

Controlled by flexible volumes spaceguarantee option

Three types of space guarantee types available

Volume None File

X

Space Guarantee - Volume


81/98


Flexible Volume = 10GbUsed Space = 1Gb

Total Physical Space= 49 cups of water


Space Guarantee Volume

Space guarantee set to volume Space allocated from aggregate at creation for entire size of volume Space allocated within volume does not affect aggregate space

Total Physical Space= 50 Cups of Water

50 empty cupsavailable for filling

Available water reduced by 10cups immediately to guarantee

the cups needed to fill the bucket


Space is not used, but the abilityto take that space is reserved

Aggregate = 50Gb

Space Guarantee - None


82/98





Space Guarantee None

Guarantee = none Space allocated from aggregate as used Does not support file and LUN space reservations May run out of aggregate space before achieving volume size




A new volume requests 10 cups,however no real space is taken

until it is needed by the volume

Aggregate = 50Gb

Space Guarantee - None


83/98









Space Guarantee None

It is possible to have many flexible volumes that can possibly exceed thelimit the aggregate has available

This is because they are empty and not taking any real space until

needed by the volume

Aggregate = 50Gb



Space Guarantee - File


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Space Gua a tee e

It is possible to have many flexible volumes that can possibly exceed thelimit the aggregate has available

This is because they are empty and not taking any real space until

needed by the volume




Aggregate = 50Gb

Flexible Volume Resizing:CLI C d


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CLI Command

vol size command is used to resize a flexible

volume

Syntax:

vol size [[+|-][k|m|g|t]]

Command Result

vol size FlexVol 50m FlexVol will now be 50M

vol size FlexVol +50m FlexVol will be increased 50M to 100M

vol size FlexVol -25m FlexVol will be decreased 25M to 75M

Aggregate and Flexible Volume Removal


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gg g

Aggregates cannot be removed until all flexiblevolumes on the aggregate are removed

Both flexible volumes and aggregates can be removed

using CLI commands and FilerView

For flexible volumes, use CLI commands:

vol offline andvol destroy

For aggregates, use CLI commands:

aggr offline andaggr destroy

What is FlexShare?


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Allows administrators to prioritize how systemresources are used

Standard with Data ONTAP 7.2

No license required

Provides workload prioritization

Prioritizes resource availability for higher priority tasks

No guarantees on performance or resource availability

FlexShare Key Features


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y

Relative priority of different volumes

Per-volume user vs. system priority

Per-volume cache policies

Administration using CLI or Manage ONTAP API

Dynamic updates of configuration changes

MultiStore


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MultiStore is an optional software product available

with Data ONTAP

Allows partitioning of the storage system and networkresources into separate storage containers

These storage containers are called virtual filers

Sometimes referred to as Vfilers

Each virtual filer offers file services to the clients

NOT the same as V-Series

Benefits of MultiStore


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Virtualization Provides a logical view of the storage and computing

resources

Hides complexity

Consolidation and ease of management Each virtual storage controller appears as a separate

physical storage with a unique IP address

Security Delegation of management

Data owned by a virtual storage controller cannot beaccessed by other virtual storage controllers

Competitive Layout: Static (Them)


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p y ( )

All tier-1 competitors

offer only static/manualvirtualization technology

TagmaStore

IBM SVC

EMC Invista Start-ups

DataCore

FalconStor

NO disk optimization

Users and Applications

File System

Composite Disk

Storage Consumer(e.g. file systems, databases, etc.)

Static Virtualization System(creates composite disk object by striping datathrough underlying physical storage)

Physical Disks or LUNs(fed from an array or JBOD)


File System

Composite Disk

Storage Consumer(e.g. file systems, databases, etc.)

Static Virtualization System(creates composite disk object by concatenatingdata underlying physical storage)


Competitive Layout: Dynamic (Us)


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Only NetApp offers

dynamic/automaticvirtualization technology

FAS

NearStore

V-Series Continuous disk

optimization

Most efficient capacity

utilization Best price/performance

Minimal management

Source: http://mktg-web.netapp.com/products/launches/nov04/Nov2004LaunchWeb/index.htm


Composite LUNs(striped or concatenatedphysical LUNs)


Volume Manager

File System

Composite Disk

File System

Composite Disk

File System

Composite Disk


Aggregate(Advanced IntellegentData Container)


FlexVol Volumes

Advanced WAFLLayout Heuristics

RAID-DPData Protection

Rapid RAIDRecovery

DataChecksums

NVRAM AcceleratedLogging

p y y ( )

Competitive Layout: NetApp ProvisioningAdvantages
http://mktg-web.netapp.com/products/launches/nov04/Nov2004LaunchWeb/index.htmhttp://mktg-web.netapp.com/products/launches/nov04/Nov2004LaunchWeb/index.htmhttp://mktg-web.netapp.com/products/launches/nov04/Nov2004LaunchWeb/index.htmhttp://mktg-web.netapp.com/products/launches/nov04/Nov2004LaunchWeb/index.htm


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Advantages

MetaLUNs and

MetaVolumes MetaLUN performance

limited by number ofdisks spanned

Hot MetaLUNs cant

be helped by disks onother MetaLUNs

Resistant to change

NetApp FlexVol volumes

Spindle sharing makestotal aggregateperformance available toall volumes

Competitive Layout: Quick Comparisons


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NetApp FAS EMC CLARiiON

Aggregate 100 per system Min disks = 2 Max disks = 16 TB RAID-DP

Disk Groups / RAID CX300 - 60 disks / 16.4 TB CX500 - 120 disks / 35.8 TB CX700 - 240 disks / 74.4 TB RAID 0/1/3/5/10 (RAID 6 talk no delivery)

Flexible Volume Create LUN within a FlexVol 200 per system 20 MB min, 16 TB max Spread across all disks in aggregate

MetaLUN (FLU/Flare LUN) Two or more FLUs joined as one = MetaLUN Theoretical limit of 2048 Cannot shrink without destroying data Manually sized

Snapshot technology Patented technology w/o COW overhead User restore capable

SnapView Copy-on-write = performance impact snapshots cannot mount on originating server

SnapMirror Synchronous, semi-sync, and asynchronous

MirrorView Synchronous or limited asynchronous

SnapVault BCV / Backup to ATA


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Exercise

Module02: Aggregate and Volume

Creation DemoEstimated Time: 30 minutes


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Volume and

Aggregate CreationDemo

References


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Competitive Layout Informationhttp://mktg-web.netapp.com/products/launches/

PartnerCenter- Solutionshttp://www.netapp.com/mycommunities/PartnerCenter/solutions/solution-sets.html

Capacity Calculatorhttp://www.netapp.com/seef/mycomm/partnercenter/solutions/roi-tei/downloads/capacity-calculator.xls

Thin-provisioning and FlexVolhttp://www.netapp.com/mycommunities/PartnerCenter/10245

MultiStorehttp://www.netapp.com/mycommunities/PartnerCenter/10251

Module Summary
http://mktg-web.netapp.com/products/launches/http://www.netapp.com/mycommunities/PartnerCenter/solutions/solution-sets.htmlhttp://www.netapp.com/seef/mycomm/partnercenter/solutions/roi-tei/downloads/capacity-calculator.xlshttp://www.netapp.com/seef/mycomm/partnercenter/solutions/roi-tei/downloads/capacity-calculator.xlshttp://www.netapp.com/mycommunities/PartnerCenter/10245http://www.netapp.com/mycommunities/PartnerCenter/10251http://www.netapp.com/mycommunities/PartnerCenter/10251http://www.netapp.com/mycommunities/PartnerCenter/10245http://www.netapp.com/seef/mycomm/partnercenter/solutions/roi-tei/downloads/capacity-calculator.xlshttp://www.netapp.com/seef/mycomm/partnercenter/solutions/roi-tei/downloads/capacity-calculator.xlshttp://www.netapp.com/seef/mycomm/partnercenter/solutions/roi-tei/downloads/capacity-calculator.xlshttp://www.netapp.com/seef/mycomm/partnercenter/solutions/roi-tei/downloads/capacity-calculator.xlshttp://www.netapp.com/seef/mycomm/partnercenter/solutions/roi-tei/downloads/capacity-calculator.xlshttp://www.netapp.com/mycommunities/PartnerCenter/solutions/solution-sets.htmlhttp://www.netapp.com/mycommunities/PartnerCenter/solutions/solution-sets.htmlhttp://www.netapp.com/mycommunities/PartnerCenter/solutions/solution-sets.htmlhttp://mktg-web.netapp.com/products/launches/http://mktg-web.netapp.com/products/launches/http://mktg-web.netapp.com/products/launches/


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In this module, you should have learned to:

Identify NetApp core software On-box features of Data ONTAP

Off-box features of Data ONTAP

Describe the functionality of NVRAM Describe the values of NetApp RAID 4 and

RAID-DP technology

Demonstrate NetApp Snapshot whiteboard

module 02_data ontap

Documents