inst-9211-lab_manual.pdf

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High Availability Clustering with the

SLE-HA Extension 11Workbook

Course 9211Version 11!

Lab "anual#anuary 11$2%11


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Contents

Se&tion 1 'ntro(u&tion to HA Clustering in SLE111!

5No 9ab 4#ercises:.......................................................................................................................1$

Se&tion 2 'nstall an( Con)igure HA Clustering in SLE111*

Exer&ise 21 'nstall the SLE HA Extension1+

*as) I; Add the -A 4#tension as an Installation "ource.............................................................1


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&5 6l'stering with the SL7$&5700

=o Lab Exer&ises>

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@ersion 1


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21 'nstall the SLE HA ExtensionIn this e#ercise, you add the "!"4 9inu# 4nterprise -igh Availability 4#tension as asotware installation source and then install the -A 4#tension components.

b?e&tives@*as) I; Add the -A 4#tension as an Installation "ource

S6e&ial 'nstru&tions an( otes@

5ptional: 9ocation o roduct I";

0ask '@ A(( the HA Extension as an 'nstallation Sour&e

1. 9aunch the 8a"* Add(on roducts module;YaST > Software > Add-on Products

I prompted or the root userDs password, enter novell

2. n the Installed Add(on roducts 58a"*: screen, clic) Add

>. n the 'edia type screen, select !and clic) "e#t

$. Insert the "9411 -A 4#tension product C=E=@= 5i you are running a virtual

machine, attach the "94 -A 4#tension I" to the @': and clic) Continue

&. n the 9icense Agreement screen, select Yes$ I agree to t%e License Agree&ent

and clic) "e#t


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3nstall and 6on%ig're &5 6l'stering in SL700

22 Con)igure an HA Cluster with the SLE HAEIn this section, you use the 8a"* Cluster module to conigure an -A cluster with the "9411-4 4#tension. 8ou then copy the cluster coniguration iles to the other cluster nodes and

start the cluster daemon on them as well.

b?e&tives@*as) I; Conigure the Cluster 'anager*as) II; Copy the Cluster Coniguration to ther Cluster Nodes


*he "94 -A 4#tension must be installed beore perorming this e#ercise

0ask '@ Con)igure the Cluster "anager1. n the irst cluster node, launch the 8a"* Cluster module;

YaST > .iscellaneous > Cluster

I prompted or the root userDs password, enter novell

2. n the Cluster Communication Channels screen, in the Channel section, rom the

Bind Networ) Address drop(down list, select the networ) I o the 9AN networ)

>. In the 'ulticast Address ield, enter 2/01

$. In the 'ulticast ort ield, enter 343

"*TE; In the ?' release o the "94(-A411, the redundant channel is not

enabled even i deined. =eining the redundant channel could cause problems iyou will be using the =9'.

&. In the Node I= section, ensure that the Auto ?enerate Node I= chec) bo# is not

chec)ed


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Also put a chec) in the Start &g&tdchec)bo#

1$. Clic) Start *)enAIS "ow

*he current "tatus should change to 7unning

1&. Clic) "e#t5or i listed in the let(hand pane, select Configure Cs(nc2:

1


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2. 4nter the ollowing commands to copy the other cluster node5s:;

scp /etc/corosync/corosync.conf

root@node2:/etc/corosync/

scp /etc/corosync/authkey root@node2:/etc/corosync/

scp /etc/csync2/csync2.cfg root@node2:/etc/csync2/scp /etc/csync2/key_hagroup root@node2:/etc/csync2/

>. !se ssh to connect to the other cluster node;

ssh root@node2

$. In the te#t editor o your choice, open the8etc8coros(nc8coros(ncconfile to be

edited.

&. 7ind the line that begins with nodeid9and increment it to match the nodeDs number

5i.e. use 2 or node2, > or node>, etc.:


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20 Copying all or part of this manual, or distributing such copies, is strictly prohibited.To report suspected copying, please call 1-800-PIRT!"

@ersion 1


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Section / Introduction to t%e Cluster Infor&ation :ase

*his section introduces you the Cluster Inormation Base 5CIB: and the tools used tomanage the cluster.

@ersion 1 Copying all or part of this manual, or distributing such copies, is strictlyprohibited. To report suspected copying, please call 1-800-PIRT!"

21


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!1 Set Cluster /e)aults an( /isable S0'0H in theCluster

In this e#ercise, you set some deault values in the cluster and disable "*NI*-.

It is important to note that you should only disable "*NI*- i you are going to use clusterresource that donDt reuire "*NI*-. 4ven in those cases it is still recommended that youenable and use "*NI*- anyway.

b?e&tives@*as) I; "et "ome Cluster =eaults*as) II; =isable "*NI*-


*he cluster must be running and have uorum to perorm this e#ercise

0ask '@ Set Soe Cluster /e)aults

1. n Node1, launch the acema)er ?!I;

YaST > *t%er > Pace&a;er 5


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3ntrod'ction to the 6l'ster 3n%ormation 8ase

0ask ''@ /isable S0'0H

1. In the let(hand pane, select C7.-Config

2. n the olicy 4ngine tab, deselect 5unchec): the Stonti% Ena'ledvalue

>. Clic) A))l(

"*TE; 8ou could also disable "*NI*- using the crm command as ollows;

crm configure

property stonith-enabled=false

commit

quit

"*NI*- should now be disabled in the cluster

,End of E#ercise


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@ersion 1


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3ntrod'ction to the 6l'ster 3n%ormation 8ase

Section 4 Introduction to Cluster 7esources

*his section introduces you the concept o cluster resources and resource agents.


2&


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31 Con)igure an '5 A((ress Cluster 4esour&eIn this e#ercise, you conigure an I address to be a cluster managed resource.

b?e&tives@*as) I; Conigure an I Address Cluster 3esource*as) II; Activate the I Address Cluster 3esource


*he cluster must be running and have uorum to perorm this e#erciseCLUSTER_IP1GCLUSTER_IP1_SNMGCLUSTER_IP1_NICG

0ask '@ Con)igure an '5 A((ress Cluster 4esour&e

1. 9aunch the acema)er ?!I;



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3ntrod'ction to 6l'ster 9eso'rces

. "elect IProm the attributes list and clic) Edit

10. In the 4dit nvpair window, in the value ield, enterCLUSTER_IP1and then clic)

*+

11. Bac) on Add rimitive F "ummary o H... screen clic) Add

12. 7rom the Name drop(down list, select cidrnet&as;

1>. In the @alue ield, enter CLUSTER_IP1_SNM

1$. Clic) *+

1&. Clic) Addagain

1


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32 Con)igure a vs)t6 4esour&e )ro the CL'In this e#ercise, you conigure a vstp server to be a cluster managed resource using thecrm command line.

b?e&tives@*as) I; Conigure a vstp 3esource*as) II; Activate the vstp 3esource


5none:

0ask '@ Con)igure a vs)t6 4esour&e

1. I not already logged in as the root user, enter su to become root. %hen

prompted or the root userDs password, enter novell

2. 4nter the ollowing command to open the crm C9I in conigure mode;

crm configure

8ou should now be at a cr&,liveconfigure?prompt

>. 4nter the ollowing commands to create a primitive resource or vstp;

primitive vsftp lsb:vsftpd meta target-role=stopped

commit

quit

$. @iew the resource state rom the command line by entering the ollowing

command;

crm_mon -ri 1

8ou should see the new resource listed along with its state

0ask ''@ A&tivate the vs)t6 4esour&e

1. pen another terminal window. I not already logged in as the root user, use su

to become root using the same password as above.

2. 4nter the ollowing command to start the new resource;

crm resource start vsftp

In the crmmon terminal window you should see the new vstp resource listed as

started

>. In the crmmon terminal window, press Ctrl+Cto to close the crmmon utility


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,End of E#ercise


2


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3! Con)igure a 4esour&e 8rou6 )or an '5 an( vs)t6 )rothe CL'

In this e#ercise, you conigure and I address and vstpd be a cluster managed resources ina resource group using the crm command line.

b?e&tives@*as) I; Conigure a 3esource ?roup*as) II; Activate the New 3esource ?roup


5none:

0ask '@ Con)igure a 4esour&e 8rou6




crm configure


>. 4nter the ollowing commands to create a resource group or I1, vstp;

group ftpgrp IP_1 vsftp

commit

quit

$. @iew the resource group state rom the command line by entering the ollowing

command;

crm_mon -ri 1

8ou should see the new resource group listed along with its state

0ask ''@ A&tivate the ew 4esour&e 8rou6



2. 4nter the ollowing command to stat the resource group;

crm resource start ftpgrp

In the crmmon terminal window you should see the new resource group listed as

started

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@ersion 1


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"*TE; I the I1 andEor the vstp cluster resources already have the target-role@parameter set, you must delete those parameters orm the attributes o theindividual cluster resources beore you can set it at the group level 5by runningcrm resource starton the group:.

8ou may easily do this by using the crm configure editcommand to open

the cluster coniguration 5in vi: and deleting the meta target-role@lines rom theI1 and vstp primitive resources. 'a)e sure you save the edited conigurationby issuing a commitcommand once you are bac) at the cr&,liveconfigure?

prompt.


,End of E#ercise


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>2 Copying all or part of this manual, or distributing such copies, is strictly prohibited.To report suspected copying, please call 1-800-PIRT!"

@ersion 1


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Section 3 .anage Clustered Storage wit% a SA"

*his section covers using a "AN or clustered storage.


>>


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*1 Create an LV" Volue 8rou6 )ro "ulti6le /isks

/es&ri6tion@

In this e#ercise you will use the 9@' command line commands to create an 9@' volumegroup rom multiple dis)s.

b?e&tives@*as) I; Conigure an 9@' @olume ?roup


erorm this e#ercise on the "torage1 machine 5unless otherwise directed by the instructor:.

0ask '@ Con)igure an LV" Volue 8rou6



2. =etermine what type o dis) 5A*AGhda vs. "A*AGsda: your machine is using by

entering the ollowing command at the command line o the "torage1 machine;

fdisk -l

9ist the device ile named o each dis) in the machine;

dis;s;

>. =etermine which dis) is used by the " by entering the ollowing command;mount

9ist the device ile that is used by the ";

*his dis) will N* be used in the volume group

$. 4nable the lvm boot script;

insserv boot.lvm

&. 7or each o the dis)s that will be used in the volume group, use the ollowing

command to create 9@' hysical @olume5s: replacingBLOCKDEVwith the

bloc) device ilename o the dis);

)vcreate 8dev8BLOCKDEV

3epeat this command or each o the dis)s that will be used in the volume group


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#anage 6l'stered Storage with a S5N

6. @eriy that the volume group was created successully by entering the ollowing

commands 5notice the similarities and dierences in their outputs:;

vgs

vgdisplay

. *o see how the physical volumes created are being used, enter the ollowingcommands 5notice the similarities and dierences in their outputs:;

pvs

pvdisplay

,End of E#ercise


>&


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*2 Create a 38. Logi&al Volue

/es&ri6tion@

In this e#ercise, you will create a $?B logical volume in the vg1 volume group.

b?e&tives@*as) I; Conigure 9@' 9ogical @olumes


erorm this e#ercise on the "torage1 server 5unless otherwise directed by the instructor:An 9@' volume group named vg0 with at least $?B o ree space must e#ist tosuccessully complete this e#ercise.

Task I: Configure LVM Logical Volumes

1. !se the ollowing commands to create 1 9ogical @olumes in the vg0 @olume

?roup;

lvcreate -L 4G -n data1 vg0

2. @eriy that the logical volume was created by entering the ollowing command;

lvs

,End of E#ercise

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@ersion 1


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*! Con)igure an iSCS' 0arget Server )ro the CL'

/es&ri6tion@

In this e#ercise you will use the C9I tools to conigure an i"C"I target server.

b?e&tives@*as) I; Conigure i"C"I *arget "erver


erorm this e#ercise on the storage1 machine 5unless directed otherwise by the instructor:.

0ask '@ Con)igure iSCS' 0arget Server

1. n the i"C"I target server open a terminal window and i not already logged in as

the root user, enter su to become root. %hen prompted or the root userDs

password, enter novell

2. 4nter the ollowing commands to enable the iscsi target server to start at boot time

and then start now;

insserv iscsitarget

rciscsitarget start

,End of E#ercise


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*3 Create an iSCS' 0arget )or the (ata1 L )ro the CL'

/es&ri6tion@

In this e#ercise you will use the command line i"C"I tools to create a target containing 19!N on the i"C"I target server .

b?e&tives@*as) I; Create an i"C"I *arget or the data1 9!N


erorm this e#ercise on the i"C"I target server machine 5most li)ely storage1: as directed.8ou must have an 9@' volume group named vg0 that contains at least 1 $?B logical

volume name data1 to perorm this e#ercise.

0ask '@ Create an iSCS' 0arget )or the (ata1 L

1. In the te#t editor o your choice, open the8etc8ietdconfile to be edited 5as the

root user:.

2. I it e#ists, and is not already commented out, comment out the e#ample target line

as ollows;

?Target iBn21-4co&e#a&)le9storagedis;2s(s1#(

>. At the end o the ile, add the ollowing lines;

Target iBn21-3co&e#a&)le9data1

Lun Pat%@8dev8vg8data1$T()e@fileio$ScsiId@data1-

$. "ave the ile and close the te#t editor

&. 3estart the i"C"I target daemon by entering the ollowing command;

rciscsitarget restart

,End of E#ercise

> Copying all or part of this manual, or distributing such copies, is strictly prohibited.To report suspected copying, please call 1-800-PIRT!"

@ersion 1


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** Con)igure an iSCS' 'nitiator )ro the CL'

/es&ri6tion@

In this e#ercise you will use the C9I tools to conigure and then discover targets with ani"C"I initiator.

b?e&tives@*as) I; Conigure the i"C"I Initiator =aemon*as) II; =iscover and 9og Into i"C"I *argets


8ou must have at least one target already conigured on the target server to complete this

e#ercise.8ou will need the I address o the i"C"I *arget "erver.TARGET_LAN_IPG TARGET_SAN1_IPGTARGET_SAN2_IPGTARGET_DRBD_IPGTARGET_NAMEG

0ask '@ Con)igure the iSCS' 'nitiator /aeon

1. n Node1, open a terminal window and i not already logged in as the root user,

enter su to become root. %hen prompted or the root userDs password, enter

novell

2. In the te#t editor o your choice, open the8etc8iscsi8initiatorna&eiscsiile to be

edited. 4dit the ollowing line to match;

Initiator"a&e@iBn100D-4desuse9NODENAME

>. "ave and then close the ile

$. In the te#t editor o your choice, open the8etc8iscsi8iscsidconfile to be edited.

4dit the ollowing line to match;

nodestartu) @ auto&atic

&. "ave the ile and close the te#t editor


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6. 3epeat this tas) on the other cluster nodes

0ask ''@ /is&over an( Log 'nto iSCS' 0argets



novell

2. 4nter the ollowing command to discover th targets on an i"C"I target server;

iscsiadm -m discovery -t st -p TARGET_SAN1_IP

>. 4nter the ollowing command to delete the unneeded portals to the target on the

target server rom the i"C"I initiatorDs discovered target database;

iscsiadm -m node -o delete -p TARGET_LAN_IP

iscsiadm -m node -o delete -p TARGET_SAN2_IP

iscsiadm -m node -o delete -p TARGET_DRBD_IP

$. 4nter the ollowing command to list the discovered targets;

iscsiadm -m node

8ou should see the target5s: available on the target server

&. 4nter the ollowing command to log into the discovered targets;

iscsiadm -m node -L all


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*+ Con)igure a Cluster "anage( Storage VolueIn this e#ercise, you conigure a basic cluster managed storage volume.

b?e&tives@*as) I; Conigure a Cluster 'anaged "torage @olume*as) II; Activate the Cluster 'anage "torage @olume


*he cluster must be running and have uorum to perorm this e#erciseDEVICEGDIRECTORYGFSTYPEG

0ask '@ Con)igure a Cluster "anage( Storage Volue

1. 9aunch the acema)er ?!I;



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. n the Add rimitive F "ummary o H... screen, select the Instance Attri'utestab

. "elect the deviceattribute rom the attributes list and clic) Edit

10. In the 4dit nvpair window, in the value ield, enterDEVICEand then clic) *+

11. "elect the director(attribute rom the attributes list and clic) Edit

12. In the nvpair window, in the value ield, enterDIRCTORYand then clic) *+

1>. "elect thefst()eattribute rom the attributes list and clic) Edit

1$. In the nvpair window, in the value ield, enterFSTYPEand clic) *+

1&. Clic) *+

1


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0ask ''@ A&tivate the Cluster "anage Storage Volue

1. In the let(hand pane, select .anage&ent

8ou should see the data1vol resource listed under 3esources

2. "elect the data1vol resource and clic) the Start 7esourcebutton on the button bar

5the button loo)s li)e a right pointing triangle:8ou should see that the data1vol resource is now running

>. *o show the resources relative to the cluster nodes, clic) the 5rou)s 7esources '(

"odebutton on the top let o the button bar 5the button loo)s li)e $ ?reen dots in

a vertical line ne#t to a downward pointing arrow:

,End of E#ercise


$>


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Section D S)lit-'rain Avoidance and .anage&ent

*his section covers how to conigure an -A cluster to avoid, detect, and manage a split(brain scenario.

$$ Copying all or part of this manual, or distributing such copies, is strictly prohibited.To report suspected copying, please call 1-800-PIRT!"

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Split$brain 5voidance and #anagement

+1 Create a 3". Logi&al Volue )or an S./ /evi&e

/es&ri6tion@

In this e#ercise, you create a $'B logical volume in the vg0 volume group or use as an"B= device in a cluster.



erorm this e#ercise on the "torage1 server 5unless otherwise directed by the instructor:An 9@' volume group named vg0 with at least $'B o ree space must e#ist to

successully complete this e#ercise.

Task I: Configure an LVM Logical Volume

1. !se the ollowing commands to create 1 9ogical @olumes in the vg0 @olume

?roup;

lvcreate -L 4M -n sbd vg0

2. @eriy that the logical volume was created by entering the ollowing command;

lvs

,End of E#ercise


$&


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+2 Create an iSCS' 0arget )or the S./ /evi&e )ro theCL'

/es&ri6tion@


b?e&tives@*as) I; Create an i"C"I *arget or the "B= =evice


erorm this e#ercise on the i"C"I target server machine 5most li)ely storage1: as directed.8ou must have an 9@' volume group named vg0 that contains at least 1 logical volumenamed sbd to perorm this e#ercise.

0ask '@ Create an iSCS' 0arget )or the S./ /evi&e


root user:.

2. At the end o the ile, add the ollowing lines;

Target iBn21-3co&e#a&)le9s'd

Lun Pat%@8dev8vg8s'd$T()e@fileio$ScsiId@s'd-

>. "ave the ile and close the te#t editor

$. 3estart the i"C"I target daemon by entering the ollowing command;


,End of E#ercise

$< Copying all or part of this manual, or distributing such copies, is strictly prohibited.To report suspected copying, please call 1-800-PIRT!"

@ersion 1


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+! /is&over 0argets with an iSCS' 'nitiator )ro the CL'

/es&ri6tion@

In this e#ercise you will use the C9I tools to discover targets with an i"C"I initiator.



8ou must have at least one target already conigured on the target server to complete thise#ercise.

8ou will need the I address o the i"C"I *arget "erver.TARGET_LAN_IPG TARGET_SAN1_IPGTARGET_SAN2_IPGTARGET_DRBD_IPGTARGET_NAMEG

0ask '@ /is&over an( Log 'nto iSCS' 0argets



novell








$. 4nter the ollowing command to list the discovered targets;iscsiadm -m node





$6


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+3 Con)igure an S./ S0'0H Cluster 4esour&eIn this e#ercise, you conigure an "B= "*NI*- to be a cluster resource to proved nodeencing.

b?e&tives@*as) I; Conigure the "B= daemon*as) II; Conigure a "B= Cluster 3esource*as) III; Activate the "B= Cluster 3esource*as) I@; *est the "B= Cluster 3esource


*he cluster must be running and have uorum to perorm this e#ercise

*he "B= 9!N must be connected to perorm this e#erciseSBD_DEVICEGVHOST1GVHOST2G

0ask '@ Con)igure the S./ (aeon

1. n Node1, i not already logged in as the root user, enter su to become root.

%hen prompted or the root userDs password, enter novell

2. In the te#t editor o your choice, open 5or create i missing: the8etc8s(sconfig8s'd

ile.

>. Add 5or edit i the already e#ist: the ollowing lines to match;

S:E!ICE@FSBD_DEVICEF

S:*PTS@F-F

$. "ave the ile and close the te#t editor

&. 4nter the ollowing commands to synchroni+e this ile with the other cluster nodes;

csyn2 -f /etc/sysconfig/sbd

csync2 -xv


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ssh VHOST2modprobe softdog

3epeat or each cluster node

. *o ensure that the sotdog )ernel module gets loaded at boot time, in the te#t editor

o your choice, open the8etc8s(sconfig8;ernelile to be edited

. Add softdogto the end o the )ernel modules listed in the

H'=!94"9A=4=NB* variable

10. "ave the ile and close the te#t editor

11. 4nter the ollowing command to copy the modiied ile to the other cluster nodes;

scp /etc/sysconfig/kernel VHOST2:/etc/sysconfig

3epeat this command or each cluster node

I.P*7TA"T; Coniguration o the watchdog device is optional but does giveyou protection against communication ailure with the "AN. Because olimitations in our lab environment, activating the watchdog device could cause thecluster nodes to reboot unintentionally. 8ou may want to undo the watchdog

coniguration ater e#periencing how to conigure it.12. 4nter the ollowing command to initiali+e the "B= device;

sbd -d SBD_DEVICEcreate

"*TE; = N* repeat this command on the other nodes.

1>. 4nter the ollowing command to create the nodeDs slot on the "B= device;

sbd -d SBD_DEVICEallocate NODE_NAME

3epeat this command on the other cluster nodes

"*TE; *his step is not reuired, however it is a good idea because it is a way tomanually ensure that the cluster nodes get a slot on the "B= device.

1$. 4nter the ollowing command to veriy the "B= device was initiali+ed;

sbd -d SBD_DEVICEdump

1&. 3estart the openais daemon to have it start the "B= daemon;

rcopenais restart

3epeat this command on each o the cluster nodes

I.P*7TA"T; I the sbd device is not connected to the cluster node when thecorosyncEopenais daemon tries to start, the openais daemon will not start

1


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0ask ''@ Con)igure a S./ Cluster 4esour&e

1. n Node1, launch the acema)er ?!I;



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op monitor interval=30 timeout=15 \

params sbd_device=SBD_DEVICE

commit

1$. 8ou should now see a new resource or the "B= "*NI*- device

0ask '''@ A&tivate the S./ Cluster 4esour&e

1. In the let(hand pane, select .anage&ent

8ou should see the "B= resource listed under 3esources

2. "elect the irst instance o the "B= resource and clic) the Start 7esourcebutton

on the button bar 5the button loo)s li)e a right pointing triangle:

8ou should see the that "B= resource is now running on a cluster node

>. *o show the resources relative to the cluster nodes, clic) the 5rou)s 7esources '(

"odebutton on the top let o the button bar 5the button loo)s li)e $ ?reen dots in

a vertical line ne#t to a downward pointing arrow:

0ask 'V@ 0est the S./ Cluster 4esour&e

1. n Node1 5as root: enter the ollowing command to test the "B= resource;

sbd -d SBD_DEVICEmessage node2 reset

8ou should see the node2 machine reboot

,End of E#ercise

&2 Copying all or part of this manual, or distributing such copies, is strictly prohibited.To report suspected copying, please call 1-800-PIRT!"

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Section = Configure Cluster Safe Logical Storage

*his section covers how conigure sae logical storage resources with 9@' in a cluster.


&>


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,1 Create 3 18. Logi&al Volues on Share( Storage

/es&ri6tion@

In this e#ercise, you create $ 1?B logical volumes on the shared storage server.



erorm this e#ercise on the "torage1 server 5unless otherwise directed by the instructor:An 9@' volume group named vg0 with at least $?B o ree space must e#ist tosuccessully complete this e#ercise.


1. !se the ollowing commands to create $ 9ogical @olumes in the vg0 @olume

?roup;

lvcreate -L 1G -n lun0 vg0




2. @eriy that the logical volumes were created by entering the ollowing command;

lvs

,End of E#ercise

&$ Copying all or part of this manual, or distributing such copies, is strictly prohibited.To report suspected copying, please call 1-800-PIRT!"

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6on%ig're 6l'ster Sa%e Logical Storage

,2 Create an iSCS' 0arget with 3 Ls )ro the CL'

/es&ri6tion@

In this e#ercise you will use the command line i"C"I tools to create a target containing $9!Ns on the i"C"I target server .

b?e&tives@*as) I; Create an i"C"I *arget with $ 9!Ns


erorm this e#ercise on the i"C"I target server machine 5most li)ely storage1: as directed.8ou must have an 9@' volume group named vg0 that contains at least $ logical volumes to

perorm this e#ercise.

0ask '@ Create an iSCS' 0arget with 3 Ls


root user:.


Target iBn21-3co&e#a&)le94luns

Lun Pat%@8dev8vg8lun$T()e@fileio$ScsiId@4luns-

Lun 1 Pat%@8dev8vg8lun1$T()e@fileio$ScsiId@4luns-1

Lun 2 Pat%@8dev8vg8lun2$T()e@fileio$ScsiId@4luns-2

Lun / Pat%@8dev8vg8lun/$T()e@fileio$ScsiId@4luns-/




,End of E#ercise


&&


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,! /is&over 0argets with an iSCS' 'nitiator )ro the CL'

/es&ri6tion@









novell












&< Copying all or part of this manual, or distributing such copies, is strictly prohibited.To report suspected copying, please call 1-800-PIRT!"

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,3 Con)igure a Clone 4esour&e 8rou6 )or /L" an(CLV"/ )ro the CL'

In this e#ercise, you conigure a cloned resource group or the =9' and c9@' daemonresources using the crm command line.

b?e&tives@*as) I; 4dit the lvm.con 7ile*as) II; Conigure a Cloned 3esource ?roup*as) III; Activate the Base "torage Cloned 3esource ?roup


5none:

0ask '@ E(it the lv&on) :ile

1. In the te#t editor o your choice, open the8etc8lv&8lv&confile to be edited.

2. 7ind the loc;ingt()eparameter in the global JK section and change the 1 to a > as

ollows;

loc;ingt()e @ /


$. "ynchroni+e the EetcElvmElvm.con ile to the other cluster nodes;

csync2 -xv /etc/lvm/lvm.conf

0ask ''@ Con)igure a Clone( 4esour&e 8rou6




crm configure


>. 4nter the ollowing commands to create a primitive resource or dlm and clvmd;

primitive dlm ocf:pacemaker:controld \op monitor intrerval=10 timeout=20

primitive clvm ocf:lvm2:clvmd \

op monitor interval=10 timeout=20

group base_strg_grp dlm clvm

& Copying all or part of this manual, or distributing such copies, is strictly prohibited.To report suspected copying, please call 1-800-PIRT!"

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clone base_strg_clone base_strg_grp \

meta target-role=stopped interleave=true

commit

quit

$. @iew the resource state rom the command line by entering the ollowingcommand;

crm_mon -ri 1

8ou should see the new cloned resource group listed along with its state

0ask '''@ A&tivate the .ase Storage Clone( 4esour&e8rou6



2. 4nter the ollowing command to start the new clone resource;

crm resource start base_strg_clone

In the crmmon terminal window you should see the new cloned resource group

listed as started


,End of E#ercise


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,* Create a Clustere( LV" Volue 8rou6 )ro "ulti6le/isks

/es&ri6tion@

In this e#ercise you will use the 9@' command line commands to create an 9@' volumegroup rom multiple dis)s.

b?e&tives@*as) I; Conigure an 9@' @olume ?roup


erorm this e#ercise on only one o the cluster nodes 5unless as directed otherwise by theinstructor:.

0ask '@ Con)igure an LV" Volue 8rou6



2. 7ind and record the list o "AN 9!Ns that will be used in the clustered 9@'

volume by entering the ollowing command at the command line o the one o the

cluster nodes 5they are most li)ely the ones you ust connected to in a previous

e#ercise:;

ls -l /dev/disk/by-path

9ist the persistent device ile names o each "AN 9!N that will be in the clustered

9@' volume group;

>. 7or each o the dis)s that will be used in the volume group 5recorded above:, use

the ollowing command to create 9@' hysical @olume5s: replacing BLOCKDEVwith the bloc) device ilename o the dis);

)vcreate 8dev8BLOCKDEV

3epeat this command or each o the dis)s that will be used in the volume group

$. !se the ollowing command to create an 9@' @olume ?roup named cvg0 5list

bloc) devices as a space delimited list:;


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vgcreate -c ( cvg 8dev8BLOCKDEV_1/dev/BLOCKDEV_2

&. @eriy that the volume group was created successully by entering the ollowing

commands 5notice the similarities and dierences in their outputs:;

vgs

vgdisplay


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,+ Create a Logi&al Volue on the Cluster o(es

/es&ri6tion@

In this e#ercise, you will create a logical volume in the cvg0 volume group on the clusternodes.

b?e&tives@*as) I; Conigure a Basic 9@' 9ogical @olume*as) II; 7ormat the Basic 9@' 9ogical @olume with a 7ile "ystem


erorm this e#ercise on only one o the cluster nodes 5unless directed otherwise by the

instructor:.An 9@' volume group named cvg0 with at least &12'B o ree space must e#ist tosuccessully complete this e#ercise.

Task I: Configure a Basic LVM Logical Volume

1. n one o the cluster nodes, i not already logged in as the root user, enter su to

become root. %hen prompted or the root userDs password, enter novell

2. !se the ollowing command to create one logical volume in the cvg0 volume

group;

lvcreate -L 512M -n datavol2 cvg0

>. @eriy that the logical volume was created by entering the ollowing command;

lvs

Task II: Format the Basic LVM Logical Volume with a FileSystem

1. n the same cluster node, enter the ollowing command to create a ile system in

the datavol2 logical volume;

mkfs.ext3 /dev/cvg0/datavol2

2. 4nter the ollowing command to create a mount point or the logical volume and

mount it;

mkdir /data2

Create this directory on all cluster nodes.

,End of E#ercise


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,, Con)igure a Clone( 4esour&e )or a Clustere( Volue8rou6 )ro the CL'

In this e#ercise, you conigure a cloned resource or a clustered 9@' volume group usingthe crm command line.

b?e&tives@*as) I; Conigure a Clustered 9@' @olume ?roup Cloned 3esource*as) II; Activate the Clustered @olume ?roup 3esource


5none:

0ask '@ Con)igure a Clustere( LV" Volue 8rou6 Clone(4esour&e




crm configure


>. 4nter the ollowing commands to create a clone resource or the to activate the

clustered 9@' volume group on all o the cluster nodes;primitive cvg0_instance ocf:heartbeat:LVM \


params volgrpname=cvg0

clone cvg0 cvg0_instance meta interleave=true \

meta target-role=stopped

commit

$. %hile still at the cr&,liveconfigure? prompt, enter the ollowing to create order

constraints to ensure that the resources start in the appropriate order;

order cvg0_after_base_strg_clone inf: base_strg-clone

cvg0

commit

quit

&. @iew the resource state rom the command line by entering the ollowing


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command;

crm_mon -i 1


0ask ''@ A&tivate the Clustere( Volue 8rou6 4esour&e




crm resource start cvg0

In the crmmon terminal window you should see the new resource listed as started


,End of E#ercise



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,7 Con)igure a 4esour&e )or a :ilesyste on an LV"Volue )ro the CL'

In this e#ercise, you conigure a resource that mounts a ilesystem that resides on an 9@'volume in a clustered 9@' volume group using the crm command line.

b?e&tives@*as) I; Conigure an 9@' @olume 7ilesystem 3esource*as) II; Activate the 7ilesystem 3esource


8ou must have a clustered 9@' volume group named cvg0 to perorm this e#ercise.!se the ollowing values in this e#ercise;DEVICEGDIRECTORYGFSTYPEG

0ask '@ Con)igure an LV" Volue :ilesyste 4esour&e




crm configure


>. 4nter the ollowing commands to create a clone resource or the to activate the

clustered 9@' volume group on all o the cluster nodes;

primitive data2vol ocf:heartbeat:Filesystem \

params device=DEVICE directory=DIRECTORY \

fstype=FSTYPE \


meta target-role=stopped

commit

$. %hile still at the cr&,liveconfigure? prompt, enter the ollowing to create order

constraints to ensure that the resources start in the appropriate order;

order data2vol_after_cvg0 inf: cgv0 data2vol

commit

quit


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&. @iew the resource state rom the command line by entering the ollowing

command;

crm_mon -ri 1


0ask ''@ A&tivate the :ilesyste 4esour&e




crm resource start data2vol

In the crmmon terminal window you should see the new resource listed as started


,End of E#ercise



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Section G Configure Active8Active Clustered Storage

*his section covers how conigure cluster sae activeEactive storage resources with C7"2in a cluster.


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6on%ig're 5ctive/5ctive 6l'stered Storage

71 Create a Logi&al Volue )or C:S2

/es&ri6tion@

In this e#ercise, you will create a ?B logical volume in the vg0 volume group.



erorm this e#ercise on the shared storage server.An 9@' volume group named vg0 with at least ?B o ree space must e#ist tosuccessully complete this e#ercise.




2. !se the ollowing commands to create a logical volume in the vg0 @olume ?roup;

lvcreate -L 8G -n ocfs2 vg0

>. @eriy that the logical volumes were created by entering the ollowing command;

lvs

,End of E#ercise



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72 Create an iSCS' 0arget with 1 L )or C:S2 )ro theCL'

/es&ri6tion@


b?e&tives@*as) I; Create an i"C"I *arget or C7"2


erorm this e#ercise on the i"C"I target server machine 5most li)ely storage1: as directed.8ou must have an 9@' volume group named vg0 that contains at least 1 logical volumenamed ocs2 to perorm this e#ercise.

0ask '@ Create an iSCS' 0arget )or C:S2


root user:.


Target iBn21-3co&e#a&)le9ocfs2

Lun Pat%@8dev8vg8ocfs2$T()e@fileio$ScsiId@ocfs2-




,End of E#ercise


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/es&ri6tion@









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73 Create an C:S2 :ile Syste on a SA VolueIn this e#ercise you will create an C7"2 ile system on a "AN volume.

b?e&tives@*as) I; Create an C7"2 7ile "ystem on a "AN @olume


erorm the ollowing 9ab on only one o the cluster nodes..!se the ollowing values in this e#ercise;DEVICEGMOUNT_POINTG

0ask '@ Create an C:S2 :ile Syste on a SA Volue1. n one o the cluster nodes, ormat the 9@' with the C7"2 ile system;

mkfs.ocfs2 DEVICE

A7"I"5; Beore you perorm this step, i you have the "B= "*NI*-daemon conigured and it is using the watchdog device, because o the limitationso the lab environment, you may need to disable the watchdog device and stop the"B= cluster resource to prevent the cluster node5s: rom rebooting unintentionallydue to temporary lac) o "AN communication.

2. 4nter the ollowing command to create the mount point directory or the C7"2

volume;

mkdir -p MOUNT_POINT

,End of E#ercise


6>


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7* Con)igure a Clone 4esour&e 8rou6 )or /L"$ CLV"/an( 2C. )ro the CL'

In this e#ercise, you conigure a cloned resource group or the =9', c9@' daemon, and2CB resources using the crm command line.

b?e&tives@*as) I; 4dit the lvm.con 7ile*as) II; Conigure a Cloned 3esource ?roup*as) III; Activate the Base "torage Cloned 3esource ?roup


5none:

0ask '@ E(it the lv&on) :ile

1. In the te#t editor o your choice, open the8etc8lv&8lv&confile to be edited.

2. 7ind the loc;ingt()eparameter in the global JK section and change the 1 to a > as

ollows;

loc;ingt()e @ /


$. Copy the EetcElvmElvm.con ile to the other cluster nodes;

scp /etc/lvm/lvm.conf NODE2:/etc/lvm/

3epeat this command or each cluster node

0ask ''@ Con)igure a Clone( 4esour&e 8rou6




crm configure


>. 4nter the ollowing commands to create a primitive resource or dlm, clvmd ando2cb;

property stonith-enabled=false

commit

primitive dlm ocf:pacemaker:controld \


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primitive clvm ocf:lvm2:clvmd \


primitive o2cb ocf:ocfs2:o2cb \

op monitor interval=10 timeout=20group base_strg_grp dlm clvm o2cb

clone base_strg_clone base_strg_grp meta

interleave=true

commit

quit


command;

crm_mon -ri 1


0ask '''@ A&tivate the .ase Storage Clone( 4esour&e8rou6




crm resource start base_strg_clone

In the crmmon terminal window you should see the new cloned resource group

listed as started


,End of E#ercise


6&


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7+ Con)igure a C:S2 Volue Clone 4esour&e )ro theCL'

In this e#ercise, you conigure an C7"2 volume to be a cluster managed clone resourceusing the crm command line.

b?e&tives@*as) I; Conigure an C7"2 @olume 3esource*as) II; Activate the C7"2 @olume 3esource


*his is a special instruction needed to complete the e#ercise.DEVICEGDIRECTORYG

0ask '@ Con)igure an C:S2 Volue 4esour&e




crm configure


>. 4nter the ollowing commands to create a primitive resource or NA'4

primitive ocfs2vol ocf:heartbeat:Filesystem \

meta target-role=stopped params device=DEVICE \

directory=DIRECTORY fstype=ocfs2

clone ocfs2vol_clone ocfs2vol meta interleave=true

commit

quit


command;

crm_mon -ri 18ou should see the new clone resource listed along with its state

0ask ''@ A&tivate the C:S2 Volue 4esour&e



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crm resource start ocfs2vol

In the crmmon terminal window you should see the new clone resource listed as

started


,End of E#ercise


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7, Con)igure an r(er Constraint )or the .ase StorageClone < C:S2

In this e#ercise, you conigure an order constraint using the crm command line.

b?e&tives@*as) I; Conigure an rder Constraint


5none:

0ask '@ Con)igure an r(er Constraint




crm configure


>. 4nter the ollowing commands to create an order constraint or -A"I and the

C7"2 volume;

order OCFS2_after_base_strg inf: base_strg_clone

ocfs2vol_clone

commit

$. %hile still at the crm5live:conigureL prompt, enter the ollowing command to see

the new order constraint;

show

8ou should see the new order constraint. 58ou might need to arrow down to see the

constraint i you have a lot o resources. ress Bto close the built(in pager i you

are not returned to the crm prompt:

&. 4nter the ollowing command at the crm5live:conigureL prompt to e#it the crm

C9I;

quit

8ou should now be bac) at a shell prompt

,End of E#ercise


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inst-9211-lab_manual.pdf

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