Dell PowerVault TL2000 Betriebsanleitung

www.dell.com | support.dell.com

Dell™ PowerVault™ TL2000/TL4000

Important Information

Shadow_techbook.book Page 1 Thursday, May 29, 2008 3:39 PM

Notes, Notices, and Cautions

NOTE: A NOTE indicates important information that helps you make better use of

your computer.

NOTICE: A NOTICE indicates either potential damage to hardware or loss of data

and tells you how to avoid the problem.

CAUTION: A CAUTION indicates a potential for property damage, personal injury,

or death.

____________________

Information in this document is subject to change without notice.

ReproductionofthesematerialsinanymannerwhatsoeverwithoutthewrittenpermissionofDellInc.

is strictly forbidden.

Trademarks used in this text: Dell, the DELL logo, and PowerVault are trademarks of Dell Inc.;

Windows is a registered trademarks of Microsoft Corporation in the United States and/or other

countries.

Other trademarks and trade names may be used in this document to refer to either the entities claiming

the marks and names or their products. Dell Inc. disclaims any proprietary interest in trademarks and

trade names other than its own.

May 2008 Rev. A00

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Important Information 3

Important Information—Read Prior to Using Your

Dell™ PowerVault™ TL2000/TL4000 Tape Library

This document supplements the Dell PowerVault TL2000/TL4000 User’s

Guide that contains information about support, setup, and configuration of

your Dell PowerVault tape library.

TL2000/TL4000 A06 Firmware Release Changes

NOTE: For information on new features like key path diagnostics, SSL, EKM,

manual ethernet settings, and super user account, refer to the Dell PowerVault

TL2000/TL4000 User’s Guide on the Dell Support website at support.dell.com.

A06 Firmware Release Issues

The following issues may occur while using your PowerVault TL2000/TL4000

tape library:

•

Changing the library operation mode from random to sequential using

the Remote Management Unit (RMU) does not work without rebooting

the library

It is recommended to take the library offline by removing it from the host

bus and rebooting the library for the settings to take effect.

•

Network changes require a reboot of the library.

Most network changes (changing the IP address, changing the Protocol

Stack, enabling/disabling DHCP, etc.) require a reboot of the library. In

such instances, a message saying

Changes will take effect

after a reboot

appears at the top and bottom of the screen. Other

changes made during this time may not require the reboot to take effect.

However, the message remains until a reboot is initiated from the remote

interface by clicking

Service Library

→

Reboot

→

Reboot

•

If the dual IP stack is enabled (IPv4 + IPv6), IPv6 addresses cannot be

configured in the Operator Control Panel (OCP) and must be

configured through the web interface.

IPv6 addresses can only be configured in the OCP if the IPv6-only stack is

enabled. If the dual stack is enabled, the IPv6 address must be configured

through the web interface (either using the IPv4 address or another known

IPv6 address).

Shadow_techbook.book Page 3 Thursday, May 29, 2008 3:39 PM

4Important Information

•

LT03FH library drives with the firmware version (6AB1) cannot have

their firmware updated via the unit RMU interface.

To upgrade a LT03FH drive starting with firmware version 6AB1, use the

ITDT tool provided with the firmware upgrade package.

•

Erroneous grayed-out number is displayed in the No Cycles field when

executing diagnostics.

The TL2000/TL4000 shows the number of executed cycles performed

during the diagnostics cycle. On starting the diagnostics testing, a grayed-

out number is displayed in the

Cycle Count

window. The cycle count is

displayed only when the first full diagnostics cycle is complete.

•

Encryption configuration missing data.

The library-managed encryption setup is not able to determine which port

needs to be used for configuration. The library-managed encryption

configuration requires an IP address and the TCP port to access the

Encryption Key Manager (EKM) server. This information can be located in

the Health Monitor page of the EKM GUI.

•

By default, the EKM server is not configured to start as an operating

system service.

By default, the EKM server does not start automatically when the host is

rebooted. The user must configure this feature. For more information, see

the

Dell PowerVault Encryption Key Manager User's Guide

available on the

Dell Support website at

support.dell.com

•

A false LME failure is displayed if the library is licensed for library-

managed encryption (LME) and the user changes the configuration to

application-managed encryption (AME).

When a TL2000/TL4000 system is configured for library-managed

encryption and the user changes the library configuration to application-

managed encryption, the library posts a false

LME Failure

if the IP

address field is cleared (set to 0.0.0.0). This field is not required when the

library is configured for AME.

•

No resources selected

message is displayed when a user

attempts to perform a media move via the Remote Management Unit

(RMU) and the backup application has a Prevent Allow in the device.

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Important Information 5

During normal backup application operation, the application sends a

Prevent Allow

to the library. The purpose of this command is to avoid

changes that confuse the backup application. When the user attempts to

move/export media via the library RMU, the library displays a

resource selected

error message. This message does not describe

the error. When the user attempts the same move from the OCP the

library message displayed is

Move prevented by host

•

Key path diagnostics ethernet test fails when the library is set to IPv4

only stack and the user attempts to use an IPv6 EKM address, or the

library is set to IPv6 only stack and the user attempts to use an IPv4 EKM

Address.

In order to successfully configure different IP versions for the library and

the EKM server, the library must be configured for dual stack mode

(IPv4+IPv6).

•

Key path diagnostics does not list drives that are not set for LME in the

table.

The drive table does not list drives that are not setup for LME. This

includes all LT03 drives and LT04 drives set for

None

AME

encryption.

•

RMU Access via Unique Local (ULA) IPv6 addresses do not auto

timeout.

The RMU will not logout due to inactivity of the web browser. On

completion of configuration or management activities, to ensure the

unit is secure, the user must logout by selecting the

Logout

button in

the RMU.

•

Drives installed in the TL4000/TL2000 do not prevent access to the drive

configuration or firmware upgrades when media is loaded into the drive

The user must remove all media in the drives when making changes to the

drive configuration or updating the firmware. In some instances failure to

remove media will result in a hung unit.

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6Important Information

Notes on TL2000/TL4000 Storage Capabilities

The Dell PowerVault TL2000 is configured out of the factory with 23 data

slots and one Import/Export (I/E) slot. It is possible to use all 24 slots as data

slots by configuring the Import/Export (I/E) slot as a storage slot.

NOTE: To change the configuration of the Dell PowerVault TL2000, you must have

library firmware 3.90 or later. For more information, see the Dell PowerVault

TL2000/TL4000 User’s Guide available on the Dell Support website at

support.dell.com.

The Dell PowerVault TL4000 is configured out of the factory with 44 data

slots, three Import/Export (I/E) slots, and a dedicated cleaning slot.

NOTE: The dedicated cleaning slot is not available from firmware 3.90 onwards.

For information on setting up the cleaning slot as a storage slot, see the Dell

PowerVault TL2000/TL4000 User’s Guide available on the Dell Support website at

support.dell.com.

It is possible to use all 48 slots as data slots by configuring the Import/Export

(I/E) slot and the dedicated cleaning slot as a storage slots.

NOTE: To change the configuration of the Dell PowerVault TL2000, you must have

library firmware 3.90 or later. For more information, see the Dell PowerVault

TL2000/TL4000 User’s Guide available on the Dell Support website at

support.dell.com.

Notes on Library Managed Encryption

•

Encrypted media cannot be re-used with a different EKM server

In order to re-use previously encrypted media using a different EKM server

(when the server has a different EKM keystore), the media must be erased

with encryption turned off in the library. This issue is a result of the ISV

applications attempting a read, prior to performing the erase and no key is

available for the read.

•

EKM server offline causes issues in the ISV

To prevent possible data loss due to an EKM server failure, it is

recommended to use a primary and secondary EKM server. This

configuration provides redundancy in the event of the primary EKM server

being down or unavailable. For more information on configuring a primary

and secondary EKM server for the library, refer to the

Multiple Key

Managers for Redundancy

(Chapter 2) of the

Dell Encryption Key Manager

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Important Information 7

User's Guide

and to the

Configure Library: Encryption

section (Chapter 4)

of the

Dell PowerVault TL2000/TL4000 User's Guide

available on the

Dell Support website at

support.dell.com

•

Dell PowerVault Encryption Key Manager User's Guide contains

information that the KeyManagerConfig.Properties and

eyManagerConfig_Client.properties files need to be modified on

certain occasions

To modify the EKM configuration files:

Stop the EKM server.

Open the

.properties

file that needs to be updated using the text

editor of your choice.

Make the necessary updates. Follow the instructions in the

Dell

PowerVault Encryption Key Manager User's Guide

available on the

Dell Support website at

support.dell.com

Save the document.

Re-start the EKM server.

•

Backup application services must be stopped and restarted after making

encryption configuration changes to the TL2000/TL4000 system

The TL4000/TL2000 system offers three different options for configuring

the LT04 devices — None, AME, or LME. When changing the encryption

configuration, the backup application services must be re-started for the

backup application to recognize the new encryption setting.

•

Secondary EKM server configuration steps

It is recommended to use a secondary EKM server (fully redundant) when

user enables LME. The secondary EKM server adds reliability to the

backup system. The documentation contains all the required information,

but is not all in a single section of the documentation.

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8Important Information

To set up a redundant EKM server:

Select a second server to host the redundant EKM.

Install the EKM application following the instruction in the

Dell

PowerVault Encryption Key Manager Quick Start Guide

NOTE: The secondary EKM settings must be the same as the original EKM.

The following items must match: group name, number of keys, keystore name,

and keystore password.

Stop the secondary EKM server.

Collect the backup up files from the primary EKM server (located in

c:\ekm\Backup

folder).

Replace the secondary EKM files with the files from the backup in the

c:\ekm\gui directory.

Restart the secondary EKM server and note the IP address of

the server.

•

EKM server IP configuration set up

It is recommended that the EKM server be set with a static IP address to

avoid changes in the IP address. With the EKM server IP address set to

dynamic (using a DHCP server), there is the possibility of the server

IP address being changed by the DHCP server. When the IP address of the

EKM server changes, the library cannot access the EKM server. Library

configuration settings require the user to input the EKM server IP address.

All backup jobs will fail if there is no available EKM server to provide the

required keys to the drive.

•

Drive requires a power cycle in order to recover from an encryption

failure due to an inaccessible encryption key

In the event of an encryption failure due to an inaccessible encryption key,

the backup job will fail to complete, and in some cases the user must

terminate the backup job. To recover the library to full functionality, the

user needs to power cycle the specific drive that failed (either via the RMU

or OCP). Once the drive has recovered, it is recommended to run Key path

diagnostics to ensure proper library and EKM configuration. For

instructions on running Key path diagnostics, see the

Dell PowerVault

TL2000/TL4000 User's Guide

on the Dell Support website at

support.dell.com.

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Important Information 9

•

Linux operating system can intermittently experience EKM GUI

window freezes

When the EKM application is running in a Linux operating system, the

EKM GUI window can intermittently freeze. There are no adverse affects

to the EKM server or host. It is recommended to exit the GUI when it is

not in use to avoid the problem. The workaround is to close the GUI

window and re-open it.

•

EKM GUI display does not refresh the drive table when the user selects

Refresh Server from the Server Health Monitor tab

In order to view the updated drive list, the user must exit the EKM GUI

(close window) then re-open it and sign in.

•

EKM GUI may not be capable of displaying the host IP address

There are three limitations in the current EKM GUI that prevent it from

displaying the EKM host IP address in the Server Health Monitor tab:

The host is configured with an IPV6 address; the EKM application will

not be able to display the IP address.

The EKM application is installed in a Linux system; the EKM

application displays the localhost address and not the actual active

IP port.

The user made a change to the host server IP address after the EKM is

installed. The EKM shows the address found during the initial EKM

installation.

To retrieve the actual IP address of the host system, the user must locate

the IP port address by accessing the network configuration. In a

Windows

system type

ipconfig

inside a command window, for a

Linux system type

ifconfig

•

EKM server communication port (TCP/SSL) and library communication

port must be consistent

The EKM server is capable of communicating with the libraries via a TCP

or SSL port. More than one library can be configured to receive keys from a

single EKM. In this case, all the device libraries attached must use the

same port configuration. i.e. all libraries must communicate via the TCP

port or SSL only. Non-homogeneous communication port settings will

result in failed backup jobs (no keys provided by the EKM).

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10 Important Information

•

EKM server IP configuration field does not fully qualify IP address

format

The IP address configuration field for the EKM server host will accept a

full link local address as shown by Windows. The field allows the user to

enter the %x (where x is the interface number for the IP address and is not

part of the actual address). For more details on IPv6 compatibility with

Windows, see

Appendix E

in the

Dell PowerVault TL2000/TL4000 User's

Guide

available on the Dell Support website at

support.dell.com

Shadow_techbook.book Page 10 Thursday, May 29, 2008 3:39 PM

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