HP StorageWorks P4000 Series User manual

HP StorageWorks
P4000 SRA for VMware SRM user guide
This guide provides information about the HP StorageWorks P4000 SRA for VMware SRM, which enables full
featured use of the VMware Site Recovery Manager. Combining Remote Copy replication with VMware SRM
provides an automated solution for implementing and testing disaster recovery between geographically separated
sites.
Part Number: AX696-96041
Second edition: November 2010

Legal and notice information
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Confidential computer software. Valid license from HP required for possession, use or copying. Consistent with FAR 12.211
and 12.212, Commercial Computer Software, Computer Software Documentation, and Technical Data for Commercial Items
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The information contained herein is subject to change without notice. The only warranties for HP products and services are set
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constituting an additional warranty. HP shall not be liable for technical or editorial errors or omissions contained herein.
Acknowledgements
Microsoft, Windows, Windows XP, and Windows NT are U.S. registered trademarks of Microsoft Corporation.

Contents
1 Using the HP StorageWorks P4000 SRA for VMware SRM ...................... 7
Overview ................................................................................................................................... 7
Configuring SRA ......................................................................................................................... 7
Installing SRA ............................................................................................................................. 7
How the HP StorageWorks P4000 SRA Works with the SRM ............................................................ 8
Array and volume discovery .................................................................................................. 9
Volumes recognized by the HP StorageWorks P4000 SRA .................................................. 9
Volumes ignored by the HP StorageWorks P4000 SRA ....................................................... 9
Testing failover at the recovery site ......................................................................................... 9
Actual failover at the recovery site ........................................................................................ 10
Troubleshooting the HP StorageWorks P4000 SRA ........................................................................ 10
2 Support and other resources .............................................................. 11
Contacting HP .......................................................................................................................... 11
Subscription service ............................................................................................................ 11
HP Insight Remote Support Software ............................................................................................ 11
New and changed information in this edition ............................................................................... 12
Related information ................................................................................................................... 12
HP websites ....................................................................................................................... 12
Typographic conventions ........................................................................................................... 12
Customer self repair .................................................................................................................. 13
HP product documentation survey ............................................................................................... 14
Glossary ............................................................................................ 15
Index ................................................................................................. 17
P4000 SRA for VMware SRM user guide 3

Figures
Typical SRM configuration with two geographically separate sites ................................... 71
Configuring arrays in SRM ......................................................................................... 82
4

Tables
Troubleshooting the HP StorageWorks P4000 SRA ...................................................... 101
Document conventions ............................................................................................. 122
P4000 SRA for VMware SRM user guide 5

6

1 Using the HP StorageWorks P4000 SRA
for VMware SRM
Overview
The HP StorageWorks P4000 SRA for VMware SRM enables full featured use of the VMware Site
Recovery Manager. Combining Remote Copy replication with VMware SRM provides an automated
solution for implementing and testing disaster recovery between geographically separated sites.
Configuring SRA
A typical SRM configuration involves two geographically separated sites with TCP/IP connectivity,
the protection site and the recovery site. The protection site is the site that is being replicated to the
recovery site for disaster recovery. Each site contains a HP StorageWorks P4000 SAN Solution, ESX
servers, a Virtual Center Server, and a SRM server.
Figure 1 Typical SRM configuration with two geographically separate sites
.
Installing SRA
First install the VMware SRM at each site, and then install the HP StorageWorks P4000 SRA on the
SRM server at each site. Once the HP StorageWorks P4000 SRA is installed, SRM can discover
replicated volumes between sites by configuring arrays in SRM. Configuring HP StorageWorks P4000
SAN Solution arrays in SRM requires the following:
P4000 SRA for VMware SRM user guide 7

•The IP address of the SAN/iQ managers.
•A user name and a password for each site.
NOTE:
This is the HP StorageWorks P4000 SAN user name and password as configured in the CMC.
The user at the recovery site must have full permissions on the management group but can be
limited to read only on all other permissions.
Figure 2 Configuring arrays in SRM
.
How the HP StorageWorks P4000 SRA Works with the SRM
The HP StorageWorks P4000 SRA performs three main functions for SRM. These functions each
depend on specific configuration information in a HP StorageWorks P4000 SAN Solution management
group.
Using the HP StorageWorks P4000 SRA for VMware SRM8

Array and volume discovery
SRM gets information from the HP StorageWorks P4000 SRA about what volumes are being replicated
by the SAN/iQ software. SRM then compares that list to the volumes it recognizes in a VMware
environment.
For normal SRM operation, a replicated volume needs to have a Remote Copy schedule with completed
remote copies at a different HP StorageWorks P4000 SAN Solution management group under a
remote volume that is not mounted at the remote site. This is a standard HP StorageWorks P4000
SAN Solution Remote Copy configuration.
For instructions on how to configure Remote Copy schedules, see the Remote Copy User Manual
which is installed in the Documentation directory of the HP StorageWorks P4000 Centralized
Management Console program. The same information is available from the online help in the HP
StorageWorks P4000 Centralized Management Console.
Volumes recognized by the HP StorageWorks P4000 SRA
Volumes must be configured with scheduled remote snapshots or they will not be considered for SRM
by the SRA. The HP StorageWorks P4000 SRA recognizes the scheduled remote snapshots as replicated
LUNs for SRM to manage. Volumes that are being remote copied only manually are not updated
consistently enough to be useful for disaster recovery and SRM.
If a volume has scheduled remote snapshots, and you create an ad hoc manual remote snapshot of
that volume, then the HP StorageWorks P4000 SRA will recognize the manual remote snapshot along
with the scheduled remote snapshots. Such ad hoc remote snapshots may be useful to test failover
with a more recent copy than the schedule has, or to push the latest updates to the remote site before
a foreseeable disaster occurs.
Volumes ignored by the HP StorageWorks P4000 SRA
Remote snapshots within the same HP StorageWorks P4000 SAN Solution management group are
ignored. These snapshots are not considered disaster recovery copies since they are usually created
to clone a volume in the HP StorageWorks P4000 SAN Solution, and copies that reside on the same
SAN are not useful for disaster recovery.
Testing failover at the recovery site
SRM performs test failovers at the recovery site when requested. When test failovers are requested,
the HP StorageWorks P4000 SRA will perform the steps listed.
1. Select the replicated volumes.
2. Identify the latest complete Remote Copy snapshot.
3. Delete any temporary writable space on that snapshot to ensure an unedited snapshot is presented
to ESX servers.
4. Configure authentication for ESX servers to directly mount snapshots.
5. When testing stops, to conserve space on the SAN, delete the temporary writable space that
was used during the test.
P4000 SRA for VMware SRM user guide 9

Actual failover at the recovery site
In the event of a disaster, the SRM can perform actual failover when requested to. When actual failover
is requested the HP StorageWorks P4000 SRA will perform the steps listed.
1. Select the replicated volumes.
2. Identify and remove any incomplete remote copies that are in progress and present the most
recent completed Remote Copy as a primary volume.
3. Convert remote volumes into primary volumes and configure authentication for ESX servers to
mount them
If an actual failover does not run completely for any reason, the failover can be called many times to
try to complete the run. If, for example, only one volume failed to restore and that was due to a normal
snapshot being present, the snapshot could be manually deleted and the failover be requested again.
Troubleshooting the HP StorageWorks P4000 SRA
Table 1 Troubleshooting the HP StorageWorks P4000 SRA
SolutionCauseProblem
Install the HP StorageWorks P4000
SRA and restart the VMware Site
Recovery Manager Service.
The HP StorageWorks P4000 SRA might
not be installed or the SRM service has
not restarted since the HP StorageWorks
P4000 SRA was installed.
The HP StorageWorks P4000
SAN array does not appear
in the drop down list of arrays
for SRM.
Create a Remote Copy schedule
for all volumes that are to be man-
aged by SRM.
Volumes are only reported as replicated
to SRM if they have a Remote Copy
schedule.
SRM does not see the volumes
that are replicated.
Create authentication groups for
any CHAP authentication required
on the recovery site before running
test failover or failover.
SRM does not store or pass CHAP pass-
words to the HP StorageWorks P4000
SRA. For CHAP authentication to work,
the authentication group with correct
password must be already configured
on the SAN/iQ management group.
CHAP-authenticated ESX serv-
ers are failing to perform test
failovers or actual failover.
Configure a network that can route
from SRM servers to the HP Stor-
ageWorks P4000 SAN Solution,
and verify the user account con-
figured in SRM.
SRM servers running the HP Storage-
Works P4000 SRA must be able to route
TCP/IP traffic to the SAN that is to be
managed and must have a valid user-
name and password.
The HP StorageWorks P4000
SRA fails to connect to the
SAN.
Do not mount primary and remote
volumes at the same site at the
same time.
Both the primary and remote volume
might be mounted at the same site.
When the HP StorageWorks
P4000 SAN array is dis-
covered, an error message
states there are duplicate
LUNs.
Using the HP StorageWorks P4000 SRA for VMware SRM10

2 Support and other resources
Contacting HP
For worldwide technical support information, see the HP support website:
http://www.hp.com/support
Before contacting HP, collect the following information:
•Product model names and numbers
•Technical support registration number (if applicable)
•Product serial numbers
•Error messages
•Operating system type and revision level
•Detailed questions
Subscription service
HP recommends that you register your product at the Subscriber's Choice for Business website:
http://www.hp.com/go/e-updates
After registering, you will receive e-mail notification of product enhancements, new driver versions,
firmware updates, and other product resources.
HP Insight Remote Support Software
HP strongly recommends that you install HP Insight Remote Support software to complete the installation
or upgrade of your product and to enable enhanced delivery of your HP Warranty, HP Care Pack
Service or HP contractual support agreement. HP Insight Remote Support supplements your monitoring,
24x7 to ensure maximum system availability by providing intelligent event diagnosis, and automatic,
secure submission of hardware event notifications to HP, which will initiate a fast and accurate
resolution, based on your product’s service level. Notifications may be sent to your authorized HP
Channel Partner for on-site service, if configured and available in your country. The software is
available in two variants:
•HP Insight Remote Support Standard: This software supports server and storage devices and is
optimized for environments with 1-50 servers. Ideal for customers who can benefit from proactive
notification, but do not need proactive service delivery and integration with a management platform.
•HP Insight Remote Support Advanced: This software provides comprehensive remote monitoring
and proactive service support for nearly all HP servers, storage, network, and SAN environments,
plus selected non-HP servers that have a support obligation with HP. It is integrated with HP Systems
Insight Manager. A dedicated server is recommended to host both HP Systems Insight Manager
and HP Insight Remote Support Advanced.
Details for both versions are available at: http://h18004.www1.hp.com/products/servers/
management/insight-remote-support/overview.html
P4000 SRA for VMware SRM user guide 11

To download the software, go to Software Depot:
https://h20392.www2.hp.com/portal/swdepot/index.do.
Select Insight Remote Support from the menu on the right.
New and changed information in this edition
The following additions and changes have been made for this edition:
•The following information has been updated:
•P4000 SAN Solution and user documentation have been rebranded
•New alerts and events functionality replaces the reporting and monitoring features
•New online upgrade functionality added
•Space reporting for clusters has been updated
•Ability to cluster servers in the CMC added
•Detailed hardware information was removed, including details about disk raid, networking, and
hardware diagnostics
•
Related information
The following documents [and websites] provide related information:
•HP StorageWorks P4000 Remote Copy User Manual
•HP StorageWorks P4000 Multi-Site HA/DR Solution Pack User Manual
•CLIQ —The SAN/iQ Command-Line Interface User Manual
You can find these documents from the Manuals page of the HP Business Support Center website:
http://www.hp.com/support/manuals
In the Storage section, click Disk Storage Systems and then select P4000 SAN Solutions.
HP websites
For additional information, see the following HP websites:
•http://www.hp.com
•http://www.hp.com/go/storage
•http://www.hp.com/service_locator
•http://www.hp.com/support/manuals
•http://www.hp.com/support/downloads
•http://www.hp.com/storage/whitepapers
Typographic conventions
Table 2 Document conventions
ElementConvention
Cross-reference links and e-mail addressesBlue text: Table 2
Support and other resources12

ElementConvention
Website addressesBlue, underlined text: http://www.hp.com
•Keys that are pressed
•Text typed into a GUI element, such as a box
•GUI elements that are clicked or selected, such as menu
and list items, buttons, tabs, and check boxes
Bold text
Text emphasisItalic text
•File and directory names
•System output
•Code
•Commands, their arguments, and argument values
Monospace text
•Code variables
•Command variables
Monospace, italic text
Emphasized monospace text
Monospace, bold text
WARNING!
Indicates that failure to follow directions could result in bodily harm or death.
CAUTION:
Indicates that failure to follow directions could result in damage to equipment or data.
IMPORTANT:
Provides clarifying information or specific instructions.
NOTE:
Provides additional information.
TIP:
Provides helpful hints and shortcuts.
Customer self repair
HP customer self repair (CSR) programs allow you to repair your StorageWorks product. If a CSR
part needs replacing, HP ships the part directly to you so that you can install it at your convenience.
P4000 SRA for VMware SRM user guide 13

Some parts do not qualify for CSR. Your HP-authorized service provider will determine whether a
repair can be accomplished by CSR.
For more information about CSR, contact your local service provider, or see the CSR website:
http://www.hp.com/go/selfrepair
This product has no customer replaceable components.
HP product documentation survey
Are you the person who installs, maintains, or uses this HP storage product? If so, we would like to
know more about your experience using the product documentation. If not, please pass this notice to
the person who is responsible for these activities.
Our goal is to provide you with documentation that makes our storage hardware and software products
easy to install, operate, and maintain. Your feedback is invaluable in letting us know how we can
improve your experience with HP documentation.
Please take 10 minutes to visit the following web site and complete our online survey. This will provide
us with valuable information that we will use to improve your experience in the future.
http://www.hp.com/support/storagedocsurvey
Thank you for your time and your investment in HP storage products.
Support and other resources14

Glossary
Cluster A grouping of storage systems that create the storage pool from which you create
volumes.
Remote Copy Asynchronous replication of data across geographic distances. Remote Copy
uses existing volume and snapshot functions along with the Remote Copy
technology to perform this asynchronous replication.
HP StorageWorks
P4000 SRA for
VMware SRM
The HP StorageWorks P4000 SRA is the program that integrates the VMware
SRM with HP StorageWorks P4000 SAN Solution arrays. The HP StorageWorks
P4000 SRA automates the storage management required for testing and
performing disaster recovery at sites using SAN/iQ Remote Copy to protect
data.
Management
group
A collection of one or more storage systems which serves as the container within
which you cluster storage systems and create volumes for storage.
Manager Managers are storage systems within a management group that you designate
to govern the activity of all of the storage systems in the group.
Remote Copy
schedule
A series of remote snapshots up to a specified number or for a specified time
period, that are copied from the primary volume to a remote volume, usually in
a different geographic location. When the specified limit is reached (either
number of remote snapshots or time period), the earliest Remote Copy snapshot
is deleted when the new one is created.
Snapshot A fixed version of a volume for use with backup and other applications.
Virtual Center
Server
A service that acts as a central administrator for VMware servers connected on
a network. This service directs actions on the virtual machines and the virtual
machine hosts. VirtualCenter Server is the working core of VMware® Virtual
Center.
VMware Site
Recovery Manager
VMware SRM is designed to protect information systems from disasters. It
streamlines and automates the protection of critical virtual machines with data,
and continuously tests their availability.
Volume A logical entity that is made up of storage on one or more storage systems. It
can be used as raw data storage or it can be formatted with a file system and
used by a host or file server.
P4000 SRA for VMware SRM user guide 15

Glossary16

Index
C
contacting HP, 11
conventions
document, 12
text symbols, 13
customer self repair, 13
D
document
conventions, 12
related information, 12
documentation
HP website, 12
providing feedback, 14
H
help
obtaining, 11
HP
technical support, 11
I
Insight Remote Support software, 11
R
related documentation, 12
remote support software, 11
S
Subscriber's Choice, HP, 11
support software, remote, 11
symbols in text, 13
T
technical support
HP, 11
service locator website, 12
text symbols, 13
typographic conventions, 12
W
websites
customer self repair, 13
HP, 12
HP Subscriber's Choice for Business, 11
product manuals, 12
P4000 SRA for VMware SRM user guide 17

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