飛康cdp參考disksafe技術(shù)培訓(xùn)

劉興宇DiskSafe技術(shù)培訓(xùn)新一代備份容災(zāi)解決方案DiskSafe簡介安裝DiskSafe為動態(tài)盤提取快照常見問題解答(獲取X-ray,藍(lán)屏處理)使用DiskSafe保護(hù)系統(tǒng)及數(shù)據(jù)使用DiskSafe保護(hù)MSCS集群使用P2V恢復(fù)業(yè)務(wù)運(yùn)行234567培訓(xùn)課程安排1DiskSafe簡介在當(dāng)系統(tǒng)宕機(jī)或磁盤損壞時(shí)，DiskSafe能提供可靠的數(shù)據(jù)保護(hù)及快速的數(shù)據(jù)恢復(fù).DiskSafe通過持續(xù)的方式將數(shù)據(jù)磁盤或分區(qū)拷貝到另外一個(gè)由IPStor管理的存儲專用設(shè)備—-如CDP專用設(shè)備來能夠保護(hù)Windows

應(yīng)用服務(wù)器，桌面機(jī)及筆記本DiskSafe

簡要說明Windows平臺支持列表PlatformCertified

Operating

SystemsDiskSafe

forWindowsWindows

Server

2008

R2

-

All

versions

except

Server

Core

Installation

Edition

(64-bit)Windows

Server

2008

-

All

versions

except

Server

Core

Installation

Edition

(32-bit

and

64-bit

AMDIntel)Windows

7

Starter,

Home

Basic,

Home

Premium,

Professional,

Enterprise

and

Ultimate

(32-bit

and

64-bit)Windows

Vista

Home

Basic,

Home

Premium,

Business,

Enterprise,

and

Ultimate

(32-bit

and

64-bit)Windows

XPHome

Edition

or

Professional

with

SP

2or

above

(32-bitor

64-bit)Windows

Server

2003

R2,

Datacenter,

Standard,

and

Enterprise

Edition

with

SP

1

or

above

(32-bit

and

64-bit)Windows

Server

2003,

Datacenter,

Standard,

and

Enterprise

Edition

with

SP

1

or

above

(32-bit,

64-bit,

and

IA64)Microsoft

iSCSI

initiator

v2.0

and

higherThe

following

FC

HBAs:Emulex

PCI-Express:LPe11000,

LPe11002,

LPe1150,

LP10000ExDC,

LP1050Ex-

Emulex

PCI-X:

LP101,

LP11000,

LP11002,

LP1150,

LP1005DC,

LP10000,

LP10000DC,

LP1050,

LP1050DC,

LP9802,

LP9802DC,LP9402DC,

LP982Emulex

Blade:

LP1005DCEmulex

cPCI:

LP9002CEmulex

PCI:LP9002LQLogic:

QLE2xxx,

QLA24xx,

QLA23xx支持安騰支持P2V支持VSSLinux平臺支持列表PlatformCertified

Operating

SystemsDiskSafe

for

LinuxMiracle

Linux

4

Update

4

(kernel2.6.9-89.5AXS2smp

i386)Miracle

Linux

5

Update

3

(kernel2.6.18-1.AXS3PAE

i386)Novell

Open

Enterprise

Server

2.0.2

kernel

2.6.16.60-0.69.1-defaultx64Red

Hat

Enterprise

Linux

4.7

kernel

2.6.9-78.0.13.ELsmp

x64/i386Red

Hat

Enterprise

Linux

4.7

kernel

2.6.9-78.ELlargesmpx64Red

Hat

Enterprise

Linux

5.1

kernel

2.6.18-53.EL5

x64/i386Red

Hat

Enterprise

Linux

5.3

kernel

2.6.18-128.EL5

x64/i386Red

Hat

Enterprise

Linux

5.3

kernel

2.6.18-128.1.6.EL5

x64/i386Red

Hat

Enterprise

Linux

5.4

kernel

2.6.18-155.el5

x64Red

Hat

Enterprise

Linux

5.4

kernel

2.6.18-164.EL5

x64/i386Red

Hat

Enterprise

Linux

5.4

kernel

2.6.18-164.11.1.el5

x64Red

Hat

Enterprise

Linux

5.5

kernel

2.6.18-194.el5

x64Red

Hat

Enterprise

Linux

5.5

kernel2.6.18-194.3.1-Xeni386Red

Hat

Enterprise

Linux

5.5

kernel

2.6.18-194.11.1.el5

x64Red

Hat

Enterprise

Linux

6

(kernel

2.6.32-71.EL6x64)SUSE

Linux

Enterprise

Server

10

SP1

kernel2.6.16.54-0.2.12-bigsmp

i386SUSE

Linux

Enterprise

Server

10

SP2

kernel2.6.16-60-0.21-smp

x64SUSE

Linux

Enterprise

Server10

SP2

kernel2.6.16.60-0.42.5-smp

x64/i386SUSE

Linux

Enterprise

Server10

SP2

kernel2.6.16.60-0.42.7-smpi386SUSE

Linux

Enterprise

Server10

SP3

kernel2.6.16.60-0.54.5-smp

x64SUSE

Linux

Enterprise

Server

10

SP3

kernel2.6.16.60-0.58.1-xen

x64SUSE

Linux

Enterprise

Server

10

SP3

kernel2.6.16.60-0.66.1-xen

x64SUSE

Linux

Enterprise

Server

11

kernel

2.6.27.42-0.1-defaultx64SUSE

Linux

Enterprise

Server

11

kernel

2.6.27.45-0.1-defaultx64SUSE

Linux

Enterprise

Server

11

kernel

2.6.27.45-0.1-xen

x64SUSE

Linux

Enterprise

Server

11

kernel

2.6.27.48-0.1-xen

x64SUSE

Linux

Enterprise

Server

11

SP1

kernel

2.6.32.12-0.7-defaultx64SUSE

Linux

Enterprise

Server

11SP1

kernel

2.6.32.13-0.5.1-xenx64FC

adapters:

QLogic

QLA24xx,

QLE24xx,

QLE25xx注意：DiskSafe

for

Linux

version

3.61

requires

the

GRUB

boot

loader.更多信息請查閱?DiskSafe

本地?cái)?shù)據(jù)保護(hù)CDP

ServersHAconfiguration(

HA

is

Optional)TMWMirror

StorageAKAprotectionConnection

viaFibreChannelConnection

viaiSCSIConnection

viaiSCSIDiskSafeTimeMarkSnapShotsSan

AttachedPrimary

StorageLocal

attachedPrimarystorage

enclosureMirrorInternalPrimaryStorageMirrorMirrorDiskSafeDiskSafeCDP

ApplianceProductionApplication

ServerOS

BootOS

Boot

(C:)DB

(D:)Log

(E:)MirrorMirrorMirrorStandbyApplication

ServerCDP

ApplianceWANRemote

ReplicationManual

ReplicationPeriodic

Delta

based

ReplicationCDR

for

Log

ShippingOS

BootDBLogSnapshots

Point-in-Times09:00

AM10:00

AM11:00

AM12:00

AMSnapshots

Point-in-Times09:00

AM10:00

AM11:00

AM12:00

AMDiskSafeWindows

FileSystem

AgentApplicationSnapshot

AgentDiskSafe

GroupRecovery

CDWindows

FileSystem

AgentApplicationSnapshot

AgentMMMDiskSafe+CDP異地容災(zāi)DiskSafe優(yōu)勢多協(xié)議支持.當(dāng)進(jìn)行遠(yuǎn)距離鏡像時(shí)，DiskSafe能通過iSCSI或FiberChannel協(xié)議進(jìn)行數(shù)據(jù)保護(hù).實(shí)時(shí)及基于塊級的對磁盤或分區(qū)進(jìn)行持續(xù)性或同期性的保護(hù).一旦本地的數(shù)據(jù)開始同步向鏡像盤拷貝時(shí)，DiskSafe可以在數(shù)據(jù)同時(shí)寫到本地兩個(gè)磁盤中的同時(shí)進(jìn)行數(shù)據(jù)鏡像或者以同期性的間隔進(jìn)行同期鏡像.通過快照代理保證數(shù)據(jù)一致性在創(chuàng)建快照之前,DiskSafe

會調(diào)用針對應(yīng)用系統(tǒng)的FalconStor快照代理程序來臨時(shí)暫停應(yīng)用磁盤，刷新Cache,以完全確保保護(hù)的數(shù)據(jù)一致性，包括數(shù)據(jù)庫系統(tǒng)的交易一致性.可以快速訪問數(shù)據(jù)的以前版本(time

mark

&

view)如果鏡像的磁盤是由IPStor管理的，對鏡像可以施加多快照，通過快，就很容易將系統(tǒng)恢復(fù)到前某狀態(tài)良好的時(shí)間點(diǎn)數(shù)據(jù)，同時(shí)快照也允許執(zhí)行遠(yuǎn)程啟動，以確保你所需的數(shù)據(jù)是正確的.DiskSafe優(yōu)勢多塊磁盤的數(shù)據(jù)一致性如果同時(shí)保護(hù)互相相關(guān)的兩塊磁盤或兩個(gè)分區(qū)及以上數(shù)據(jù)區(qū)時(shí)，可以將它們編組加入到同一組中，來對這個(gè)組施加同一快照操作，以確保這些磁盤或分區(qū)是在相同時(shí)間點(diǎn)的數(shù)據(jù)版本，尤其是對數(shù)據(jù)庫進(jìn)行恢復(fù)時(shí)尤為重要.遠(yuǎn)程啟動支持FC

或iSCSI

HBA

的遠(yuǎn)程啟動.安全恢復(fù)針對恢復(fù)可以設(shè)定Password.

這樣可以確保使用Recovery

CD

進(jìn)行恢復(fù)時(shí)，可以單獨(dú)的恢復(fù)通過認(rèn)證的主機(jī).與Windows緊密整合（Windows版本）操作系統(tǒng)整合在MMC計(jì)算機(jī)管理界面中；DiskSafe

3.7支持VSSDiskSafe優(yōu)勢安裝DiskSafe(Windows)Disksafe對主機(jī)端的需求DiskSafe

對主機(jī)系統(tǒng)的要求如下.One

of

the

following

operating

systems.Windows

2008

(32

or

64

bit)Windows

Vista

(32

or

64

bit)Microsoft

Windows

Server

2003

R2

Standard

or

Enterprise

Edition with

Service

Pack

2

(32-bit

or

64-bit)Microsoft

Windows

XP

Home

Edition

or

Professional

with

Service Pack

2

ornewer

(32-bit)Microsoft

Windows

2000

Professional,

Server,

or

Advanced

Server with

Service

Pack

4DiskSafe

必要安裝組件通過IP

(Ethernet)連接到CDP

專用設(shè)備上:InstallISCSI

HBA

(option)Install

an

iSCSIinitiator

softwareInstall

IMA

and

DiskSafe通過Fiber

Channel連接到CDP專用設(shè)備上:Install

Fiber

channel

HBA

(if

not

exist)Install

IMA

and

DisksafeIPStor

Management

Agent(IMA):IMA

is

installed

automatically

if

it

is

not

already

installed.

Itrequires

an additional

5MB

of

free

hard

disk

space.安裝過程The

setup

utility

forInstallation

of

DiskSafefor

Windows

startsautomatically.

If

itdoesn’t,

browse

theCD’s

root

directory

andrun

launch.exe.After

installation,

it

willshow

a

window

todisplay

some

hardwareinformation

on

yourmachine.

It

ensures

thetype

of

network

orstorage

adapters

aresupported

when

youneed

to

boot

from

theRecovery

CD.啟動DiskSafeAfter

installing

DiskSafe,

you

can

access

the

DiskSafe

in

threeways:Via

the

Start

menuStart

Programs

FalconStor

DiskSafeVia

Computer

ManagementStart

Settings

ControlPanel

Administrative

Tools

ComputerManagement

Storage

DiskSafeVia

MMC

ConsoleRun

mmc

File

Add/Remove

Snap-in

Add

find

DiskSafe

in

the

list

of

snap-ins

and

click

Add

Close

OKDiskSafe操作界面布局DiskSafe

Applicationwindow

is

divided

intotwo

panes.The

left

pane

containsa

navigation

tree.The

right

pane

displaysassociated

informationThe

menu

of

each

itemdepends

on

the

statusand

edition

ofDiskSafe,

somefeatures

will

beinvisible

or

grayed

outfor

lower

editions.使用DiskSafe保護(hù)系統(tǒng)及數(shù)據(jù)(

Windows)Prepare

the

CDP

ServerProtectPolicy

CreationSynchronization

in

DetailsConsistency

Group使用DiskSafe保護(hù)系統(tǒng)及數(shù)據(jù)配置CDP服務(wù)器Before

protecta

partition/

diskusing

DiskSafe,

please

checkthe

following

steps:If

you

want

each

client

to

havesecure

access

to

storageserver,

create

a

user

name

andpassword

for

the

protectedhost

on

the

storage

server.Create

a

storage

pool

on

theCDP

Server

for

the

DiskSafeusage

and

assign

that

pool

tothe

user

which

you

createdpreviously.License

and

enable

allprotocols.

“e.g.

iSCSI”.

If

youplan

to

take

snapshots,

licensethe

TimeMark

option.打開DiskSafe操作界面DiskSafe應(yīng)用程序窗口設(shè)計(jì)為左右窗口模式.The

left

pane

containsa

navigation

tree.The

right

pane

displaysassociated

informationThe

menu

of

each

itemdepends

on

the

statusand

edition

of

DiskSafe,some

features

will

beinvisible

or

grayed

outfor

lower

editions.數(shù)據(jù)保護(hù)–源磁盤的選擇展開DiskSafe

ProtectedStorage,右鍵點(diǎn)擊Disks,然后再點(diǎn)擊Protect…就可開始何護(hù)磁盤的向?qū)?在向?qū)У拿恳灰晥D中，點(diǎn)擊Next繼續(xù)操作.在Eligible

primary

storage的列表中，點(diǎn)擊所要保護(hù)的磁盤或分區(qū)，然后選擇next.

如果在列表中沒有被顯示，則需點(diǎn)擊Refresh

來更新列表.Mirror

盤的選擇4.

在Eligible

mirrordisks列表中,選擇事先已經(jīng)為主磁盤準(zhǔn)備好的鏡像盤，然后點(diǎn)擊

Next繼續(xù).如果沒有磁盤在Eligiblemirrordisk的列表中,或如果試圖使用其它磁盤，點(diǎn)擊

New

Disk以創(chuàng)建.保護(hù)數(shù)據(jù)–分配新磁盤5.

從Servers列表中選擇一個(gè)存儲服務(wù)器以創(chuàng)建新磁盤，并選擇使用的協(xié)議(iSCSI

或FibreChannel)，點(diǎn)擊Enable,然后再選擇OK.iSCSI

Select

one

of

the

localiSCSI

adapters

for

connecting

tothe

storage

server.

Use

Default

ifnot

sure.Fibre

Channel

Enable

SpecificFC

WWPN

Setting,

add/removethe

WWPN

of

FC

HBA

to

overridethe

default

WWPN

detected

bythe

IMA.如果在服務(wù)器列表中沒有存儲服務(wù)器，或者沒有被列出你將要在其創(chuàng)建新磁盤的服務(wù)器，點(diǎn)擊

Add

Server.增加CDP

專用設(shè)備以保護(hù)應(yīng)用主機(jī)6.

在Add

Server

的窗口中,在Servername的對話框中鍵入存儲服務(wù)器的IP

或服務(wù)器名,并輸入

UserName

和Password以訪問存儲服務(wù)器.選擇數(shù)據(jù)傳輸協(xié)議(FibreChanneland/oriSCSI

),然后點(diǎn)擊OK

以完成.數(shù)據(jù)同步模式7.

選擇鏡像模式.Continuous

Mode在本地盤被更新時(shí)也同時(shí)更新到鏡像盤中.Periodic

Mode以事先設(shè)定的時(shí)間間隔，有規(guī)律的更新到鏡像盤中.特別是在從本地磁盤到鏡像磁盤的初始拷貝中.Start

immediately

在向?qū)瓿蓵r(shí)Start

on

一個(gè)指定的時(shí)間日期.Copy

only

sectors

used

by

file

system僅僅只拷由文件系統(tǒng)占用的扇區(qū),不包括沒有在磁盤卷中未使用的空間.Optimize

data

copy掃描本地磁盤及鏡像盤，只拷貝差量的扇區(qū).性能調(diào)整8.四種Performance

optionsMinimizeperformanceimpacttoprimaryI/O–選中該方式可以保證最低影響主存儲的I/O,此時(shí)

mirror

buffers的最大數(shù)量將被設(shè)置為64，最大

buffer抵達(dá)等待時(shí)間值將被設(shè)置為0秒.Optimize

data

mirrorcoverage

–選中此方式可以中斷鏡像同步來保證讀寫性能，此時(shí)mirrorbuffers的最大數(shù)量將被設(shè)置為8，最大buffer抵達(dá)等待時(shí)間值將被設(shè)置為10秒.Balance

performance

and

coverage

–此選項(xiàng)為默認(rèn)選項(xiàng)，該方式兼顧讀寫性能和鏡像同步此時(shí)mirrorbuffers的最大數(shù)量將被設(shè)置為1，最大buffer抵達(dá)等待時(shí)間值將被設(shè)置為10秒.Advancedcustomsettings–此選項(xiàng)可供設(shè)置特定的值來滿足用戶的設(shè)定要求。在此可以設(shè)置mirrorbuffers的最大數(shù)量和最大buffer抵達(dá)等待時(shí)間值定時(shí)策略配置9.Schedule，提供制定創(chuàng)建

snapshot或同步周期的時(shí)間策略提供多種時(shí)間顆粒度選擇：分鐘、小時(shí)、天、周、月等等高級時(shí)間策略選項(xiàng)：提供了客戶化制定schedule的靈活策略，例如：用戶可以排除節(jié)假日的

sanpshot創(chuàng)建。數(shù)據(jù)同步高級選項(xiàng)10.

advanced

synchronizationoptions.如果選擇了Optimize

data

copy

duringsynchronizations

option，則從本地盤拷貝到鏡像盤中的數(shù)據(jù)以4-KB

的塊代替

64-KB大小的塊.Limit

I/O

throughput

generated

byDiskSafe

指定將數(shù)據(jù)寫到鏡像盤的最大速率.If

synchronizationfails,retry

forevery用來設(shè)置如果同步失敗的重試時(shí)間間隔Suspend

I/O

When

mirror

diskthroughputdeteriorates指定I/O被掛起的策略.Encrypt

mirror

disk可以加密保護(hù)的磁盤數(shù)據(jù)保護(hù)高級選項(xiàng)11.

Advanced

snapshot

options.Limit

the

number

of

snapshots

tokeep.當(dāng)創(chuàng)建的照數(shù)量達(dá)到時(shí)，新創(chuàng)建的快照會使最舊的快照被刪除.Take

a

temporary

snapshot

beforeeach

synchronization

to

recover

themirror

in

case

of

failure.此選項(xiàng)提供在每次同步之前創(chuàng)建臨時(shí)

sanpshot，以防范意外的數(shù)據(jù)丟失.Invoke

snapshot

agents

在快照發(fā)生的前后是否通知快照代理.Keep

fixed

number

of

snapshots此選項(xiàng)提供限制快照數(shù)量DiskSafe將按照策略保留所需的歷史快照。磁盤保護(hù)的維護(hù)選項(xiàng)掛起磁盤保護(hù)當(dāng)掛起磁盤保護(hù)時(shí),數(shù)據(jù)只寫到本地磁盤中，而不寫到鏡像盤中，其結(jié)果是本地磁盤和鏡像磁盤之間數(shù)據(jù)數(shù)據(jù)開始有差異.恢復(fù)磁盤保護(hù)當(dāng)恢復(fù)磁盤保護(hù)時(shí)，依照已存在的配置，被保護(hù)的磁盤會同步數(shù)據(jù)到鏡像盤.Note:

If

the

disk

or

partition

is

part

of

a

group,

you

cannot

suspend

protection

for

thatindividual

member.

Suspend

or

resume

will

only

apply

to

the

entire

group.刪除磁盤保護(hù)刪除磁盤或分區(qū)保護(hù)，不會直接刪除鏡像磁盤，這使得重建同樣的磁盤或分區(qū)保護(hù)時(shí)鏡像盤也是同一個(gè)，因此，在刪除了磁盤保護(hù)后，鏡像盤是被保留在此主機(jī)上的，也就是可以直接訪問鏡像盤中的數(shù)據(jù).刪除以后不在使用的鏡像磁盤時(shí)，只能通過存儲服務(wù)器的控制臺去刪除.磁盤保護(hù)的數(shù)據(jù)同步當(dāng)對一磁盤或分區(qū)創(chuàng)建保護(hù)時(shí),允許本地磁盤在被改寫時(shí)，同時(shí)鏡像磁盤也被改寫(continuous

mode)或指定間隔時(shí)間(periodicmode).因此，無論何時(shí),鏡像的模式都可被更改或混合使用(磁盤保護(hù)無需停止，除了

rollback

or

restore).

例如，對周期性同步的間隔及時(shí)間都可更改.持續(xù)模式在本地磁盤被改寫的同時(shí)鏡像盤也被改寫周期模式按照事先設(shè)定的間隔時(shí)間定期更新鏡像盤持續(xù)模式持續(xù)模式特征:確保鏡像盤一直存放最新的數(shù)據(jù).當(dāng)數(shù)據(jù)塊被更新，同步操作就會在主磁盤與鏡像盤之間發(fā)生.如果鏡像盤的寫入速度遠(yuǎn)遠(yuǎn)低于保護(hù)的磁盤速度，DiskSafe不會等待鏡像盤的響應(yīng)，而直接將數(shù)據(jù)寫入到主磁盤中，這時(shí)，持續(xù)同步操作則會臨時(shí)中斷.DiskSafeProtected

Diskor

PartitionMirror

Disk(Local

or

Remote)周期模式特征:對網(wǎng)絡(luò)影響最小的情況下將改變的數(shù)據(jù)寫入到鏡像盤中提供內(nèi)置的數(shù)據(jù)延遲更新機(jī)制以消除對鏡像盤數(shù)據(jù)的損耗.只復(fù)制更改的數(shù)據(jù)到鏡像盤.DiskSafeMirror

Disk(Local

or

Remote)Schedule

TimeProtected

Diskor

Partition周期模式初始同步在初始同步中,一些參數(shù)據(jù)的修改可以改善同步的性能.可以拷貝文件系統(tǒng)占用的扇區(qū)DiskSafe

可以識別Windows

文件系統(tǒng)FAT16/FAT32/NTFS.如果被保護(hù)的磁盤或分區(qū)的文件系統(tǒng)是其中之一，選擇此選項(xiàng)能提高同步的效率.只同步拷貝文件系統(tǒng)使用到的扇區(qū)到鏡像盤，而不復(fù)制文件系統(tǒng)未使用的卷空間.If

there

are

installed

applications

that

may

write

data

to

the

protected

disk

directly,

then

donot

enable

this

option.

Just

sync

the

entire

disk/partition.優(yōu)化數(shù)據(jù)拷貝如果鏡像盤是原來保護(hù)磁盤以前使用的鏡像盤，則鏡像盤中會存在與原主磁盤相同的一些數(shù)據(jù)，使能此選項(xiàng)可以提升初始同步的效率，它會掃描本地磁盤與鏡像盤，只拷貝兩磁盤間的差量數(shù)據(jù)，另外一點(diǎn)，如果鏡像盤是新的裸磁盤，此選項(xiàng)將會不可用.數(shù)據(jù)同步的優(yōu)化調(diào)整Max

number

of

I/O

buffers:

10Wait

time:

3Mirror

diskPrimary

diskIn

memoryWaitingtime

=

0

Waitingtime=

31…….10111…….021…….10…11….20In-Sync

stateAfter

0.5secondsOut-1of-Sy…nc…st.ate20數(shù)據(jù)同步的優(yōu)化調(diào)整1……………1011Max

number

of

I/O

buffers:

10Wait

time:

3

seconds1111Waittime=

0Waittime=

3InmemoryMirror

diskPrimary

disk1……………10After

3secondsOInu-tS-oyfn-Sc

ysntactestate數(shù)據(jù)同步的調(diào)整選項(xiàng)Advanced

parameters

for

fine

tuning

the

DiskSafe

Synchronizationperformance.Optimize

data

copy

during

SynchronizationSpecify

whether

to

copy

changed

data

by

4

KB

blocks

to

mirror

disk.

Leaving

this

option

offmeans

copying

more

data

to

the

mirror,

but

taking

less

processing

time

to

identify

the

changedblocks.The

size

of

the

protected

disk

or

partition,

the

physical

location

of

the

changed

data

on

the

disk,the

speed

of

the

processor,

and

the

bandwidth

of

the

network

all

affect

how

quickly

the

disk

can

be

scanned

for

changes

and

copied

to

the

mirror.Note:

The

throughput

speed

displayed

in

the

application

window

might

appear

to

be

greaterthan

it

actually

is.

The

display

throughput

speed

is

based

on

64K

block,

the

actual

throughputspeed

is

based

the

amount

of

data

actually

copied

to

the

mirror.Limit

I/Othroughput

generated

byDiskSafe(KB/s)Specify

whether

or

not

to

limit

the

speed

at

which

data

is

written

to

the

mirror

in

kilobytes

persecond.

After

that,

if

the

throughput

of

DiskSafe

exceeds

this

maximum

value,

mirroristemporarily

paused,

freeing

up

processing

bandwidth

for

other

ongoing

processes.Advanced

parameters

for

fine

tuning

the

DiskSafe

Synchronizationperformance.

(continued)Suspend

I/O

whenmirror

disk

throughput

deterioratesWhen

the

mirror

disk

throughput

deteriorates,

this

option

could

be

used

to

suspend

disk

I/Oto

free

up

the

bandwidth

and

slow

down

mirror

disk

throughput.Acceptable

throughputA

reasonable

throughput

value

for

mirror

disk.

The

“Test”

button

could

be

usedto

calculate

the

current

throughput.Deterioration

threshold

to

suspend

I/OThe

deterioration

threshold

from

1-99

%.

Once

throughput

drops

below

the

specifiedpercentage

of

the

acceptable

throughput,

I/O

will

be

suspended.Interval

to

try

resuming

I/OThe

time

interval

to

try

to

resume

I/O

once

suspended.Note:

The

default

settings

are

the

optimized

values

in

general.數(shù)據(jù)同步的調(diào)整選項(xiàng)數(shù)據(jù)同步的維護(hù)選項(xiàng)修改同步Expand

DiskSafe

ProtectedStorage

andthen

click

DisksorGroups.Intheright

pane,

right-click

thedisk,

partition

or

group

whosesynchronizationoptions

need

to

be

modified.

Go

to

Properties

ModeTab

Advanced

tomodify

the

parameters

in

Synchronization

options.啟動同步Expand

DiskSafe

ProtectedStorage

andthen

click

DisksorGroups.Intheright

pane,

right-click

thedisk,

partition

or

group

whosesynchronizationneedsto

be

started,

andclick

Synchronize.

The

CurrentActivity

columndisplays

the

progress

of

thesynchronization.取消同步Expand

DiskSafe

ProtectedStorage

andthen

click

DisksorGroups.Intheright

pane,

right-click

thedisk,

partition

or

group

whosesynchronizationneedstobe

canceled,

andclick

Cancel

Sync.

Canceling

is

only

applicable

inperiodic

mode

because

in

continuous

mode,

synchronization

is

incessant.創(chuàng)建快照Expand

DiskSafe

ProtectedStorage

and

then

click

Disks

orGroups.In

the

right

pane,

right-click

thedisk

or

partition

for

which

you

wantto

create

a

snapshot,

and

then

clickAdvanced

Take

Snapshot

.A

message

will

appear

in

DiskSafeNotification

window

to

indicatesnapshot

result.When

finished

taking

a

snapshot,expand

Snapshots

in

the

left

pane.It

contains

two

additional

nodes:Disks

and

Groups.

The

Disks/Groupnode

includes

a

list

of

all

protecteddisks

and

partitions/groups.維護(hù)快照Mounting

a

SnapshotMount

a

snapshot,

and

a

new

virtual

diskis

created.

The

mounted

snapshotis

an

exact

image

of

themirror

as

it

existed

at

the

time

the

snapshot

wastaken.

A

mounted

snapshot

is

not

intended

to

be

a

working

disk.

Anychanges

made

to

a

mounted

snapshot

are

lost

as

soon

as

the

snapshot

isdismounted.Note:

Donot

mounta

snapshot

of

adynamic

disk.

If

you

do

it,

the

windowssystem

may

not

recognize

it

correctly.Dismounting

a

SnapshotDismounting

amounted

snapshot

prevents

further

access

to

it,

disregardsanychanges

that

were

made,

and

allows

the

storage

server

to

deletethesnapshot

whenspace

is

neededfor

newersnapshots.Viewing

Snapshot

PropertiesWhen

a

snapshot

was

taken

manually

or

automatically,

you

can

view

theinformation

about

that

snapshot,

such

as

whenit

was

taken

and

the

amountof

data

that

changed

between

the

last

snapshot

and

the

selected

one.Creating

consistency

group

in

DiskSafe

allows

you

to

linkindividualdisks

or

partitionstogether

for

synchronizationand

snapshot,

whose

action

will

be

executed

at

the

sametime.All

configuration

settings

that

you

specify

for

the

groupoverride

the

settings

previously

specified

for

theindividualmembers

of

that

group.

However,

each

individual

memberretains

its

own

synchronization

optimization

settings.DiskSafe一致性組GroupSNAP!SYNC!The

followings

are

two

application

scenarios

which

needs

tocreate

a

groupin

order

to

keep

the

disks

or

partitionsconsistent.Database

ApplicationsDatabases

often

use

one

disk

for

its

data

and

a

separate

disk

for

its

logsand

control

files.

Protecting

both

disks

and

putting

them

together

in

agroup

ensures

that

snapshots

of

both

disks

are

taken

at

the

exact

sametime,

preserving

the

overall

integrity

of

the

database

in

case

it

needs

to

berestored

later.Dynamic

VolumesIf

a

dynamic

volume

spans

multiple

physical

disks,

protecting

all

theaffected

disks

and

putting

them

in

a

group

ensures

that

they

can

bereliably

protected

and

restored.一致性組的應(yīng)用場合Expand

DiskSafe

ProtectedStorage,

right-click

Groups,and

then

click

Create.In

Group

name,

type

a

namefor

the

group.

Select

themirror

mode.Subsequent

wizard

steps

helpyou

configure

the

Continuesmode

Snapshot

Schedule,Periodic

mode

Sync

Schedule,Advanced

Sync

Options,Advanced

Snapshot

Options…Those

settings

are

similar

withsingle

disk

Protection

Creationin

previous

lesson.創(chuàng)建一致性組Expand

DiskSafe

ProtectedStorage

and

click

Groups.Then

right-click

the

groupwhich

you

want

to

add

a

diskor

partition,

and

click

Join.From

the

Protected

disks

list,select

the

disks

or

partitionswhich

you

want

to

add

to

thegroup.Below

are

states

of

single

diskand

group

that

allows

the“Join”

operation:For

Disk/Partition

to

bejoined:Waiting

for

initial/nextsync,synchronizing,continuousmirroring,

suspended,

or

stoppedFor

Group:

Empty,

waiting

forsync,

suspendedorsynchronizing將Disk

Protection加入組SuspendSuspend

all

member

protection

of

the

group.

Datais

no

longer

written

to

mirror

disk.

They e

out

ofsync.ResumeResume

the

protection

for

all

members

of

thegroup,

the

local

disk

and

mirror

disk

will

besynchronized

according

to

existing

configuration.Note:

It’s

not

allowed

to

suspend

the

protectionfor

any

individual

member.

Suspend

of

resumeprotection

only

for

the

entire

group.操作選項(xiàng)使用DiskSafe保護(hù)MSCS集群概述Windows

Cluster

OverviewBefore

the

ConfigurationInstallation

&

DeploymentAdd

ProtectionRemove

ProtectionWindows集群??DiskSafe

supports

multi-node

Microsoft?

Cluster

Service

for

MicrosoftWindows

Server

2003

Enterprise

Edition,

as

well

as

Microsoft

Windows

2000Advanced

Server

in

an

active-active

or

active-passive

configuration.In

a

MS

clustered

environment,

you

can

install

DiskSafe

on

all

hosts

in

thecluster,

and

protect

all

the

physical

disk

cluster

resources

that

belong

to

each

host.Once

one

of

the

cluster

nodes

fails,

DiskSafe

mirroring

on

that

node

would

stop.When

the

failed

node

recovers,

mirroring

resumes

and

automatically

performsrescan.Windows

ClusterEnvironmentNode

1Node

2Node

[N]DiskSafe+

IMAQuorumDiskSafeResourceActive

NodeDiskSafe+

IMAActive

NodeDiskSafe+

IMA準(zhǔn)備Before

you

beginYou

must

configure

the

cluster

using

the

MicrosoftCluster

Administrator

before

you

install

DiskSafe.Notes:For

details

regarding

configuring

a

cluster

or

creatingresources,

refer

to

your

Microsoft

documentation.It

is mended

that

you

use

Microsoft’s

Best

Practicesfor

Drive-Letter

Assignments

on

a

Server

Cluster

toavoid

confusion

in

drive

letter

assignments.

For

moreinformation,

see:

.Afterconfigure

the

Windowsclustering,

install

DiskSafe

onall

cluster

nodes

at

first.Login

the

Primary

clusternode.

Check

the

resourcewhich

you

want

to

protect.Open

theDisk

Management.In

the

currentexample,DiskSafe

will

protecttheDisk1

(

Partition

I:

).Open

the

ClusterAdministrator,

in

the

Group

0,itshows

that

disk/partitionis

a

shared

resource

by

allclusternodes. Its

state

isOnline.預(yù)先檢查在集群上安裝DisksafeInstalling

and

using

DiskSafe

in

aclustered

environmentOnce

you

have

configured

your

cluster

and

it

isrunning

normally,

you

are

ready

to

install

DiskSafe.Follow

the

standard

DiskSafe

installation

procedure

tosetup

DiskSafe

on

all

nodes.Make

sure

you

select

the

same

folder

path

as

thesetup

destination

on

all

nodes

during

installationbecause

if

the

setup

folders

are

different,

the

DiskSaferesource

cannot

be

created.During

DiskSafe

installation,

the

setup

wizard

will

addthe

new

cluster

resource

type:

“DiskSafe

Resource”

intothe

Cluster

configuration.The

cluster

owner

node

displays

as

the

only

eligibleprimary

storage.

Therefore,

cluster

protections

can

onlybe

created

on

the

owner

node.To

confirm

the

DiskSafe

Resource

type

which

wascreated,

open

the

Cluster

Administrator

program

onallnodes,

and

then

expand

the

Resource

Types

underCluster

Configuration.Then

configuretheprotection

policy

of

that

diskinDiskSafeIn

the

DiskSafe

Protect

DiskWizard,

select

Partition

(I:\)orDisk1

as

primary

storage.Click

Nextto

continuetheconfiguration.At

that

time,

new

DiskSafeResource

will

be

created

inthe

cluster

automatically.

Inthe

ClusterAdministrator,new

Group

0_resource

iscreated

in

the

Group

0.Itsresource

type

is

DiskSafeResource.

It

will

be

used

tostore

the

sharing

settings

inthe

protection

of

clusteringenvironment.配置保護(hù)策略創(chuàng)建保護(hù)（備份）任務(wù)Add

protection

for

iSCSI

ClientsCreate

protection

on

the

first

node.Change

the

iSCSI

target

access

mode

from

read/writeto

read/write

nonexclusive

on

the

first

node’s

SANclient

on

the

IPStor

console.Move

the

cluster

group

to

the

second

node.

(You

cando

this

through

the

Cluster

Administ