Huawei OceanStor Pacific Storage and IBM Storage Protect

Interoperability Test Report

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Axians Global All Rights Reserved

Executive Summary

Axians Global (“Axians”) assessed the interoperability of IBM Storage Protect software with Huawei OceanStor Pacific Storage. The goal of the assessment is to validate that IBM Storage Protect is interoperable with Huawei OceanStor Pacific Storage.

In the assessment, Axians has determined that IBM Storage Protect software backup and restore jobs will function with Huawei OceanStor Pacific Storage for the following scenarios:

Test Scenario

Storage Involved

Protocol(s) Tested

Result

Backup Target –Object

OceanStor Pacific Storage

S3

Passed

Backup Source –NAS

OceanStor Pacific Storage

CIFS/NFS

Passed

Backup Target – NAS

OceanStor Pacific Storage

CIFS/NFS

Passed

In this document, you will find details on the above test cases and the captured output. The procedures conducted in the tests are referenced from standard online documentation from IBM Storage Protect and Huawei.

1. Environment Configuration

1.1 Networking Diagram

Figure 1.1 Huawei OceanStor Pacific Storage Function Compatibility Test Networking

Note: This networking diagram is for reference only. For details about the connections between Huawei OceanStor Pacific Storage nodes and application servers, between nodes, see the Huawei OceanStor Pacific Storage product documentation.

Networking description:

  • Deployment at the production end:
  1. Deploy one ESXi physical host, install the VMware VM software, create VMs, and install windows operating system.
  2. The management network and service network are connected to the IBM Storage Protect software and Huawei OceanStor Pacific Storage through switches.
  • Deploy the IBM Storage Protect software on Windows VM server.
  • All storage devices connect to the IBM Storage Protect through 10g Ethernet.

1.2 Hardware and Software Configuration

1.2.1 Storage Configuration

Table 1-1 Huawei storage configuration table

Name

Model

Version

Quantity

Storage

Huawei OceanStor Pacific Storage

(Hereinafter referred to as “the storage device” as well)

8.2

1

1.2.2 Matching Hardware Configuration

Table 1-2 Hardware Configuration

Name

description

Usage

Quantity

VMware ESXi

x86 server

  • CPU:2* Gold 6130
  • Memory: 256 GB
  • Network: 4 x 10GE optical ports

VMware VM Backup and Restoration

1

IBM Storage Protect Server and Client

(Hereinafter referred to as “TSM server” as well)

x86 server

  • CPU:2* Silver 4208
  • Memory: 256 GB
  • Primary storage disk: 2 x 3.84 TB SSD
  • Network: 4 x 10GE optical ports

Deploys backup software to schedule backup tasks and transfer backup data.

1

Ethernet switch

Huawei 6855 10GE Network Switch

10GE network switch on the storage and IBM Storage Protect server backup service plane

2

1.2.3 Test Software and Tools

Table 1-3 Test Software and Tool List

Software Name

description

Version

Quantity

VMware ESXi

VMware virtualization platform

7.0

1

IBM Storage Protect

Server and Client

8.1

1

Operation System

Install the Windows Hosts

Windows Server 2016

1

2. Test Preparation

2.1 Create the Account and save the AK&SK on the storage device

2.2 Create the Service Network on the storage device

2.3 Create the Namespace on the storage device

2.4 Create the Bucket on the storage device

2.5 Configure the DNS on the TSM server

Query the IP Address of Object DNS Service in Subnet on the storage device.

Configure DNS on Windows Hosts.

2.5 Create the CIFS share on the storage device

2.6 Create the NFS share on the storage device

3. OceanStor Pacific Storage Object Backup Interconnection with IBM Storage Protect

3.1 Add the bucket as S3 target storage through HTTP protocol

Test Purpose

To verify that the bucket can be added to the TSM server as S3 target storage through HTTP protocol.

Test Networking

Huawei OceanStor Pacific Storage Function Compatibility Test Networking

Prerequisites

  1. Deployment of storage device, Server, client and networking have been completed.
  2. The storage device is running properly.
  3. Namespace and object bucket have been created on the storage device.

Test Procedure

  1. Create cloud connection through HTTP protocol.
  2. Create storage pool and select the cloud connection created in step 1.
  3. Create backup policy and register node.

Expected Result

Step 1 Cloud connection is configured successfully.

Step 2 Storage pool is configured successfully.

Step 3 Backup policy and node is configured successfully.

Test Result

Step 1 Cloud connection is configured successfully.

Step 2 Storage pool is configured successfully.

Step 3 Backup policy and node is configured successfully.

Test Conclusion

Passed

3.2 Full Backup and Recovery

Test Purpose

To Verify that the TSM server full backup and recovery is working

Test Networking

Huawei OceanStor Pacific Storage Function Compatibility Test Networking

Prerequisites

  1. Deployment of storage device, server host, client host and networking have been completed.
  2. The storage device is running properly.
  3. Namespace and object bucket have been created on the storage device.
  4. Cloud storage pool and backup policy has been configured in section 3.1.
  5. Prepare some files.

Test Procedure

  1. Enter the backup page and click Backup button to start backup.
  2. Once the backup job finished, check the status of backup job.
  3. Enter the Restore page and start restore job. Restore files to a different location.
  4. Once the restore job finished, check the status of the job and data consistence.

Expected Result

Step 2 backup job finish successfully

Step 4 recovery job finish successfully and restored files are the same as original files.

Test Result

Prerequisites

Pre1 Prepare some files.

Test Result

Step 1 Enter the backup page and click Backup button to start backup

Step 2 Once the backup job finished, check the status of backup job.

Step 3 Enter the Restore page and start restore job. Restore files to a different location.

Step 4 Once the restore job finished, check the status of the job and data consistence.

Test Conclusion

Passed

3.3 Incremental Backup and Recovery

Test Purpose

To Verify that the TSM server incremental backup and recovery is working

Test Networking

Huawei OceanStor Pacific Storage Function Compatibility Test Networking

Prerequisites

  1. Deployment of storage device, Server, client, and networking have been completed.
  2. The storage is running properly.
  3. Namespace and object bucket have been created on the storage device.
  4. Prepare some files.
  5. A full backup operation was already completed in section 3.2.

Test Procedure

  1. Enter the backup page and click the Backup button to start backup.
  2. Once the backup job finished, check the status of backup job.
  3. Enter the Restore page and start restore job. Restore files to a different location.
  4. Once the restore job finished, check the status of the job and data consistence.

Expected Result

Step 2 backup job finish successfully

Step 4 recovery job finish successfully and restored files are the same as original files.

Test Result

Prerequisites

Pre1 Add some files as backup source.

Test Result

Step 1 Enter the backup page and click Backup button to start backup.

Step 2 Once the backup job finished, check the status of backup job.

Step 3 Enter the Restore page and start restore job. Restore files to a different location.

Step 4 Once the restore job finished, check the status of the job and data consistence.

Test Conclusion

Passed

3.4 Add the bucket as S3 target storage through HTTPS protocol

Test Purpose

To verify that the bucket can be added to the TSM server as S3 target storage through HTTPS protocol.

Test Networking

Huawei OceanStor Pacific Storage Function Compatibility Test Networking

Prerequisites

  1. Deployment of storage device, Server, client, and networking have been completed.
  2. The storage device is running properly.
  3. Namespace and object bucket have been created on the storage device.

Test Procedure

  1. Update cloud connection through HTTPS protocol.
  2. Click test connection to verify the connection status.

Expected Result

Step 1 Cloud connection is configured successfully.

Step 2 The connection status is normal.

Test Result

Prerequisites

Pre1 Add the storage device certificate on the TSM server.

The settings take effect after the server host is restarted.

Step 1 Update cloud connection through HTTPS protocol.

Step 2 Click test connection to verify the connection status.

Test Conclusion

Passed

3.5 Large Files and Small Files Backup and Recovery

Test Purpose

Large files and small files backup and recovery

Test Networking

Huawei OceanStor Pacific Storage Function Compatibility Test Networking

Prerequisites

  1. Storage devices, backup servers, and deployment and networking have been completed.
  2. The storage is running properly.
  3. File system and CIFS share has been created on storage device.
  4. Prepare some large files and small files.

Test Procedure

  1. Enter the backup page and click the Backup button to start backup.
  2. Once the backup job finished, check the status of backup job.
  3. Enter the Restore page and start restore job. Restore files to a different location.
  4. Once the restore job finished, check the status of the job and data consistence.

Expected Result

Step 2 backup job finish successfully

Step 4 recovery job finish successfully and restored files are the same as original files.

Test Result

Step1 Enter the backup page and click Backup button to start backup.

Step2 Once the backup job finished, check the status of backup job.

Step3 Enter the Restore page and start restore job. Restore files to a different location.

Step4 Once the restore job finished, check the status of the job and data consistence.

Test Conclusion

Passed

4. OceanStor Pacific Storage CIFS Backup Interconnection with IBM Storage Protect

4.1 Add CIFS Share as backup source and target

Test Purpose

Add CIFS shares to the backup server as the backup source and target

Test Networking

Huawei OceanStor Pacific Storage Function Compatibility Test Networking

Prerequisites

  1. Deployment of storage device, Server, client, and networking have been completed.
  2. The storage device is running properly.
  3. Namespace and CIFS share have been created on storage device.

Test Procedure

  1. Mount the CIFS Share for backup source to the Windows Client.
  2. Enter the backup page and check the path of backup source.
  3. Mount the CIFS Share for backup target to the Windows Client.
  4. Create storage pool and volume.
  5. Create backup policy.

Expected Result

Step 1 CIFS share source is configured successfully.

Step 3 CIFS share target is configured successfully.

Step 5 Backup policy is configured successfully.

Test Result

Step1 Mount the CIFS Share for backup source to the Windows Client.

Step2 Enter the backup page and check the path of backup source.

Step3 Mount the CIFS Share for backup target to the Windows Client.

Step4 Create storage pool and volume.

Step5 Create backup policy.

Test Conclusion

Passed

4.2 Full CIFS Share Backup and Recovery

Test Purpose

Full CIFS share backup and recovery

Test Networking

Huawei OceanStor Pacific Storage Function Compatibility Test Networking

Prerequisites

  1. Deployment of storage device, Server, client, and networking have been completed.
  2. The storage is running properly.
  3. Namespace and CIFS share have been created on storage device.
  4. CIFS storage pool and backup policy has been configured in section 4.1.
  5. Prepare some files.

Test Procedure

  1. Enter the backup page and click the Backup button to start backup.
  2. Once the backup job finished, check the status of backup job.
  3. Enter the Restore page and start restore job. Restore files to a different location.
  4. Once the restore job finished, check the status of the job and data consistence.

Expected Result

Step 2 backup job finish successfully.

Step 4 recovery job finish successfully and restored files are the same as original files.

Test Result

Step1 Enter the backup page and click the Backup button to start backup.

Step2 Once the backup job finished, check the status of backup job.

Step3 Enter the Restore page and start the restore job. Restore files to a different location.

Step4 Once the restore job finished, check the status of the job and data consistence.

Test Conclusion

Passed

4.3 Incremental CIFS Share Backup and Recovery

Test Purpose

Incremental CIFS share backup and recovery

Test Networking

Huawei OceanStor Pacific Storage Function Compatibility Test Networking

Preset Condition

  1. Deployment of storage device, Server, client, and networking have been completed.
  2. The storage is running properly.
  3. Namespace and CIFS share have been created on storage device.
  4. CIFS storage pool and backup policy has been configured in section 4.1.
  5. Prepare some files.
  6. A full backup operation was already completed in section 4.2.

Test Procedure

  1. Enter the backup page and click the Backup button to start backup.
  2. Once the backup job finished, check the status of backup job.
  3. Enter the Restore page and start restore job. Restore files to a different location.
  4. Once the restore job finished, check the status of the job and data consistence.

Expected Result

Step 2 backup job finish successfully.

Step 4 recovery job finish successfully and restored files are the same as original files.

Test Result

Prerequisites

Pre1 Add some files as backup source.

Test Result

Step1 Enter the backup page and click Backup button to start backup.

Step2 Once the backup job finished, check the status of backup job.

Step3 Enter the Restore page and start restore job. Restore files to a different location.

Step4 Once the restore job finished, check the status of the job and data consistence.

Test Conclusion

Passed

4.4 Massive Files Backup and Recovery

Test Purpose

Massive files backup and recovery

Test Networking

Huawei OceanStor Pacific Storage Function Compatibility Test Networking

Prerequisites

  1. Deployment of storage device, Server, client, and networking have been completed.
  2. The storage is running properly.
  3. Namespace and CIFS share have been created on storage device.
  4. CIFS storage pool and backup policy has been configured in section 4.1
  5. Prepare some files. Prepare massive files.

Test Procedure

  1. Enter the backup page and click the Backup button to start backup.
  2. Once the backup job finished, check the status of backup job.
  3. Enter the Restore page and start restore job. Restore files to a different location.
  4. Once the restore job finished, check the status of the job and data consistence.

Expected Result

Step 2 backup job finish successfully

Step 4 recovery job finish successfully and restored files are the same as original files.

Test Result

Step1 Enter the backup page and click Backup button to start backup.

Step2 Once the backup job finished, check the status of backup job.

Step3 Enter the Restore page and start restore job. Restore files to a different location.

Step4 Once the restore job finished, check the status of the job and data consistence.

Test Conclusion

Passed

4.5 Large Files and Small Files Backup and Recovery

Test Purpose

Large files and small files backup and recovery

Test Networking

Huawei OceanStor Pacific Storage Function Compatibility Test Networking

Prerequisites

  1. Deployment of storage device, Server, client, and networking have been completed.
  2. The storage is running properly.
  3. Namespace and CIFS share have been created on storage device.
  4. CIFS storage pool and backup policy has been configured in server host.
  5. Prepare some large files and small files.

Test Procedure

  1. Enter the backup page and click the Backup button to start backup.
  2. Once the backup job finished, check the status of backup job.
  3. Enter the Restore page and start restore job. Restore files to a different location.
  4. Once the restore job finished, check the status of the job and data consistence.

Expected Result

Step 2 backup job finish successfully

Step 4 recovery job finish successfully and restored files are the same as original files.

Test Result

Step1 Enter the backup page and click the Backup button to start backup.

Step2 Once the backup job finished, check the status of backup job.

Step3 Enter the Restore page and start restore job. Restore files to a different location.

Step4 Once the restore job finished, check the status of the job and data consistence.

Test Conclusion

Passed

4.6 Special Files Backup and Recovery

Test Purpose

Special files backup and recovery

Test Networking

Huawei OceanStor Pacific Storage Function Compatibility Test Networking 2

Prerequisites

  1. Deployment of storage device, Server, client, and networking have been completed.
  2. The storage is running properly.
  3. Namespace and CIFS share have been created on storage device.
  4. CIFS storage pool and backup policy has been configured in server host.
  5. Prepare some files. Prepare special files such as exe、msi、rpm etc.

Test Procedure

  1. Enter the backup page and click the Backup button to start backup.
  2. Once the backup job finished, check the status of backup job.
  3. Enter the Restore page and start restore job. Restore files to a different location.
  4. Once the restore job finished, check the status of the job and data consistence.

Expected Result

Step 2 backup job finish successfully

Step 4 recovery job finish successfully and restored files are the same as original files.

Test Result

Prerequisites

Pre1 Prepare special files such as exe、msi、rpm etc.

Test Result

Step1 Enter the backup page and click Backup button to start backup

Step2 Once the backup job finished, check the status of backup job.

Step3 Enter the Restore page and start restore job. Restore files to a different location.

Step4 Once the restore job finished, check the status of the job and data consistence.

Test Conclusion

Passed

4.7 File Properties Backup and Recovery

Test Purpose

File Properties backup and recovery

Test Networking

Huawei OceanStor Pacific Storage Function Compatibility Test Networking

Prerequisites

  1. Deployment of storage device, Server, client, and networking have been completed.
  2. The storage is running properly.
  3. Namespace and CIFS share have been created on storage device.
  4. CIFS storage pool and backup policy has been configured in server host.
  5. Prepare some files with special properties such as Mtime.

Test Procedure

  1. Enter the backup page and click the Backup button to start backup.
  2. Once the backup job finished, check the status of backup job.
  3. Enter the Restore page and start restore job. Restore files to a different location.
  4. Once the restore job finished, check the status of the job and data consistence.

Expected Result

Step 2 backup job finish successfully

Step 4 recovery job finish successfully and restored files are the same as original files.

Test Result

Prerequisites

Pre1 Prepare some files with special properties such as Mtime.

Test Result

Step1 Enter the backup page and click Backup button to start backup.

Step2 Once the backup job finished, check the status of backup job.

Step3 Enter the Restore page and start restore job. Restore files to a different location.

Step4 Once the restore job finished, check the status of the job and data consistence.

Test Conclusion

Passed

5. OceanStor Pacific Storage NFS Backup Interconnection with IBM Storage Protect

5.1 Add NFS Share Source and Target

Test Purpose

Add NFS shares to the backup server as the backup source and target

Test Networking

Huawei OceanStor Pacific Storage Function Compatibility Test Networking

Prerequisites

  1. Deployment of storage device, Server, client, and networking have been completed.
  2. The storage is running properly.
  3. Namespace and NFS share have been created on storage device.

Test Procedure

  1. Mount the NFS Share for the backup source to the Linux Client.
  2. Enter the backup page and check the path of backup source.
  3. Mount the NFS Share for backup target to the Linux Client.
  4. Create Storage pool and volume.
  5. Create backup policy.

Expected Result

Step 1 NFS share source is configured successfully.

Step 3 NFS share target is configured successfully.

Step 5 Backup policy is configured successfully.

Test Result

Step1 Mount the NFS Share for backup source to the Linux Client.

Step2 Enter the backup page and check the path of backup source.

Step3 Mount the NFS Share for backup target to the Linux Client.

Step4 Create Storage pool and volume.

Step5 Create backup policy.

Test Conclusion

Passed

5.2 Full NFS Share Backup and Recovery

Test Purpose

Full NFS backup and recovery

Test Networking

Huawei OceanStor Pacific Storage Function Compatibility Test Networking

Prerequisites

  1. Deployment of storage device, Server, client, and networking have been completed.
  2. The storage is running properly.
  3. Namespace and NFS share have been created on storage device.
  4. NFS storage pool and backup policy has been configured in section 5.1.
  5. Prepare some files.

Test Procedure

  1. Enter the backup page and click the Backup button to start backup.
  2. Once the backup job finished, check the status of backup job.
  3. Enter the Restore page and start restore job. Restore files to a different location.
  4. Once the restore job finished, check the status of the job and data consistence.

Expected Result

Step 2 backup job finish successfully

Step 4 recovery job finish successfully and restored files are the same as original files.

Test Result

Step1 Enter the backup page and click Backup button to start backup.

Step2 Once the backup job finished, check the status of backup job.

Step3 Enter the Restore page and start restore job. Restore files to a different location.

Step4 Once the restore job finished, check the status of the job and data consistence.

Test Conclusion

Passed

5.3 Incremental NFS Share Backup and Recovery

Test Purpose

Incremental NFS share backup and recovery

Test Networking

Huawei OceanStor Pacific Storage Function Compatibility Test Networking

Preset Condition

  1. Deployment of storage device, Server, client, and networking have been completed.
  2. The storage is running properly.
  3. Namespace and NFS share have been created on storage device.
  4. NFS storage pool and backup policy has been configured in section 5.1.
  5. Prepare some files.
  6. A full backup operation was already completed in section 5.2.

Test Procedure

  1. Enter the backup page and click the Backup button to start backup.
  2. Once the backup job finished, check the status of backup job.
  3. Enter the Restore page and start restore job. Restore files to a different location.
  4. Once the restore job finished, check the status of the job and data consistence.

Expected Result

Step 2 backup job finish successfully

Step 4 recovery job finish successfully and restored files are the same as original files.

Test Result

Prerequisites

Pre1 Add some files as backup source.

Test Result

Step1 Enter the backup page and click Backup button to start backup.

Step2 Once the backup job finished, check the status of backup job.

Step3 Enter the Restore page and start restore job. Restore files to a different location.

Step4 Once the restore job finished, check the status of the job and data consistence.

Test Conclusion

Passed

5.4 Massive Files Backup and Recovery

Test Purpose

Massive files backup and recovery

Test Networking

Huawei OceanStor Pacific Storage Function Compatibility Test Networking

Prerequisites

  1. Deployment of storage device, Server, client, and networking have been completed.
  2. The storage is running properly.
  3. Namespace and NFS share have been created on storage device.
  4. NFS storage pool and backup policy has been configured in section 5.1.
  5. Prepare massive files.

Test Procedure

  1. Enter the backup page and click the Backup button to start backup.
  2. Once the backup job finished, check the status of backup job.
  3. Enter the Restore page and start restore job. Restore files to a different location.
  4. Once the restore job finished, check the status of the job and data consistence.

Expected Result

Step 2 backup job finish successfully

Step 4 recovery job finish successfully and restored files are the same as original files.

Test Result

Step1 Enter the backup page and click Backup button to start backup.

Step2 Once the backup job finished, check the status of backup job.

Step3 Enter the Restore page and start restore job. Restore files to a different location.

Step4 Once the restore job finished, check the status of the job and data consistence.

Test Conclusion

Passed

5.5 Large Files and Small Files Backup and Recovery

Test Purpose

Large files and small files backup and recovery

Test Networking

Huawei OceanStor Pacific Storage Function Compatibility Test Networking

Prerequisites

  1. Deployment of storage device, Server, client, and networking have been completed.
  2. The storage is running properly.
  3. Namespace and NFS share have been created on storage device.
  4. NFS storage pool and backup policy has been configured in section 5.1..
  5. Prepare some large files and small files.

Test Procedure

  1. Enter the backup page and click the Backup button to start backup.
  2. Once the backup job finished, check the status of backup job.
  3. Enter the Restore page and start restore job. Restore files to a different location.
  4. Once the restore job finished, check the status of the job and data consistence.

Expected Result

Step 2 backup job finish successfully.

Step 4 recovery job finish successfully and restored files are the same as original files.

Test Result

Step1 Enter the backup page and click Backup button to start backup.

Step2 Once the backup job finished, check the status of backup job.

Step3 Enter the Restore page and start restore job. Restore files to a different location.

Step4 Once the restore job finished, check the status of the job and data consistence.

Test Conclusion

Passed

5.6 Special Files Backup and Recovery

Test Purpose

Special files backup and recovery

Test Networking

Huawei OceanStor Pacific Storage Function Compatibility Test Networking

Prerequisites

  1. Deployment of storage device, Server, client, and networking have been completed.
  2. The storage is running properly.
  3. Namespace and NFS share have been created on storage device.
  4. NFS storage pool and backup policy has been configured in section 5.1.
  5. Prepare special files such as links etc.

Test Procedure

  1. Enter the backup page and click the Backup button to start backup.
  2. Once the backup job finished, check the status of backup job.
  3. Enter the Restore page and start restore job. Restore files to a different location.
  4. Once the restore job finished, check the status of the job and data consistence.

Expected Result

Step 2 backup job finish successfully.

Step 4 recovery job finish successfully and restored files are the same as original files.

Test Result

Prerequisites

Pre1 Prepare special files such as links etc.

Test Result

Step1 Enter the backup page and click Backup button to start backup.

Step2 Once the backup job finished, check the status of backup job.

Step3 Enter the Restore page and start restore job. Restore files to a different location.

Step4 Once the restore job finished, check the status of the job and data consistence.

Test Conclusion

Passed

5.7 File Properties Backup and Recovery

Test Purpose

File Properties backup and recovery

Test Networking

Huawei OceanStor Pacific Storage Function Compatibility Test Networking

Prerequisites

  1. Deployment of storage device, Server, client, and networking have been completed.
  2. The storage is running properly.
  3. Namespace and NFS share have been created on storage device.
  4. NFS storage pool and backup policy has been configured in server host.
  5. Prepare some files with special properties such as nfsv4acl.

Test Procedure

  1. Enter the backup page and click the Backup button to start backup.
  2. Once the backup job finished, check the status of backup job.
  3. Enter the Restore page and start restore job. Restore files to a different location.
  4. Once the restore job finished, check the status of the job and data consistence.

Expected Result

Step 2 backup job finish successfully

Step 4 recovery job finish successfully and restored files are the same as original files.

Test Result

Step1 Enter the backup page and click Backup button to start backup.

Step2 Once the backup job finished, check the status of backup job.

Step3 Enter the Restore page and start restore job. Restore files to a different location.

Step4 Once the restore job finished, check the status of the job and data consistence.

C:\Users\zwx1143137\AppData\Roaming\eSpace_Desktop\UserData\zwx1143137\imagefiles\082B4112-51FB-430C-BC45-FFBBCB85721B.png

Test Conclusion

Passed

6. Reference

6.1 IBM Storage Protect documentation

https://www.ibm.com/docs/en/storage-protect/8.1.20

6.2 Huawei OceanStor Pacific Series Product Documentation

https://support.huawei.com/hedex/hdx.do?docid=DOC1101187689&id=object_config_00184