Hitachi G1000 - User Manual

Other manuals for Hitachi G1000

Hardware Guide208 pages

Questions and Answers

T
Tammy SingletonAug 13, 2025
What to do if a timeout error occurred while creating a pair or resynchronizing a pair in Hitachi G1000 Storage?
- R
  Robert SantiagoAug 13, 2025
  If a timeout error occurs while creating or resynchronizing a pair in Hitachi Storage, it could be due to a hardware error or a large workload. * **Hardware Error:** A SIM is generated. Contact Hitachi Data Systems customer support, and after the problem is resolved, re-execute the GAD operation. * **Large Workload:** If a SIM is not generated, wait 5 to 6 minutes, and then check the pair status. If the pair status changed correctly, the operation completed after the timeout error. If the pair status did not change as anticipated, the GAD operation cannot complete due to the large workload. Re-execute the GAD operation when the storage system workload is smaller.
L
leonardsherryAug 17, 2025
What to do if the HCS computer stops or global-active device does not operate properly in Hitachi Storage?
- D
  Douglas BarnettAug 17, 2025
  If the HCS computer stops or the global-active device does not operate properly in Hitachi Storage, here are some steps to take: * Verify there are no issues with the HCS computer, Ethernet connection, or software. Then, restart the HCS computer. Note that restarting the HCS computer won't affect currently running GAD operations. * Confirm that all GAD requirements and restrictions are met. * Ensure that the storage systems at both the primary and secondary sites are powered on and fully enabled. * Check that all values and parameters, such as serial numbers, remote storage system IDs, path parameters, and primary/secondary volume IDs, were entered correctly.
C
Curtis FaulknerAug 21, 2025
Why is monitoring data not updated in Hitachi Storage?
- R
  Robert SimmonsAug 21, 2025
  If the monitoring data is not updating in Hitachi Storage, it might be because the time setting of SVP was changed. To resolve this, disable the monitoring switch and then enable it again.
D
Daniel EllisAug 25, 2025
What to do if Hitachi G1000 Storage system failed to get encryption keys and all volumes are blocked?
- T
  Theresa SimmonsAug 26, 2025
  If the Hitachi storage system fails to retrieve encryption keys backed up on the key management server, and all volumes are blocked upon system startup, with SIM code 661000 being returned, follow these steps: * Restore the connection to the key management server. * Retry key encryption key acquisition. * Contact the Hitachi Data Systems Support Center to restore the disk adapter and blocked drives or blocked volumes.
T
Tanner SellersAug 28, 2025
How to fix Hitachi G1000 server configuration test failed?
- B
  brownmariaAug 28, 2025
  If the server configuration test fails, check the key management server connection settings, specifically: * Host name * Port number * Client certificate file * Root certificate file If the communication failure is due to the connection time, adjust the: * Timeout * Retry interval * Number of retries.
B
brian94Sep 1, 2025
How to fix Hitachi Storage editing encryption environmental settings that has failed with the error (00002-058578)?
- M
  Mario CurrySep 1, 2025
  If you encounter error message 00002-058578 while configuring encryption environmental settings for the first time, wait a few minutes, then click File > Refresh All to reread the configuration information. Next, initialize the connection settings to the key management server and configure the encryption environmental settings again. If this is not the first time you are configuring encryption environmental settings and the same error occurs, wait a few minutes, then click File > Refresh All to reread the configuration information, then configure the encryption environmental settings again.
A
Amber McguireSep 4, 2025
Why can't I create or delete data encryption license keys on Hitachi G1000?
- F
  fwilliamsSep 4, 2025
  If you are unable to create or delete data encryption license keys, ensure that: * The Encryption License Key software license is valid and installed. * You have the Security Administrator (View & Modify) role. * If you have backed up and restored data encryption license keys with a key management server, that the connection to the key management server is available.
T
Timothy WalshSep 9, 2025
What to do if the Hitachi Storage Edit Encryption wizard operation failed, but the encryption status changed?
- A
  Anna RobertsonSep 9, 2025
  If the Edit Encryption wizard operation fails but the encryption status changes, the status change was successful, but the volume format failed. Review the message, correct the error, and format the volumes again.

Summary

1 Overview of global-active device

About global-active device

Explains the fundamental purpose and function of global-active device (GAD) technology.

Global-active device solutions

Details various solutions and benefits offered by global-active device, such as fault tolerance and load balancing.

GAD and global storage virtualization

Describes how GAD operations leverage global storage virtualization for managing multiple storage systems.

Monitoring GAD status

Explains how to monitor the status of GAD pairs, including pair and I/O status.

Global-active device and server I;O

Details how server I/O requests are managed based on GAD status and I/O modes.

Quorum disk and server I;O

Explains the function of the quorum disk in determining server I/O continuation during failures.

GAD pair operations

Covers essential operations for managing GAD pairs, including creation, suspension, and deletion.

Initial copy and differential copy

Describes the initial and differential copy operations used to synchronize data between GAD pair volumes.

2 System requirements

Requirements and restrictions

Lists the necessary hardware, software, and configuration requirements and limitations for GAD.

Interoperability requirements

Details the interoperability of GAD with other Hitachi Virtual Storage Platform G1000 features.

3 Planning for global-active device

Storage system preparation

Provides steps for preparing primary, secondary, and external storage systems for GAD deployment.

Planning system performance

Offers guidance on planning for GAD system performance by optimizing connections and replicas.

Planning physical paths

Details how to plan physical data paths for connecting storage systems, considering bandwidth and connections.

Planning the quorum disk

Explains the process of preparing an external storage system for the GAD quorum disk.

Planning GAD pairs and pair volumes

Guides on calculating maximum GAD pairs and understanding volume requirements for GAD configuration.

4 Configuration and pair management using CCI

Global-active device system configuration

Illustrates the key components of a completed GAD system configuration, including host servers and storage systems.

Workflow for creating a GAD environment

Outlines the sequential steps required to establish a GAD environment using CCI commands.

Creating the command devices

Details the creation of command devices on each storage system for CCI and storage system communication.

Creating the quorum disk

Provides instructions on setting up the quorum disk by mapping external storage to primary and secondary systems.

Setting up the secondary system

Guides on creating and configuring a virtual storage machine in the secondary system for GAD operations.

Creating the GAD pair

Explains how to create a GAD pair after all prerequisite configurations are completed.

5 Using Hitachi Command Suite to set up global-active device

Setting up a global-active device environment

Describes how to use the HCS Set up Global-Active Device window for initial configuration tasks.

Configuring remote paths

Details the process of configuring remote paths between primary and secondary storage systems using HCS.

Configuring the quorum disk

Guides on configuring the quorum disk by selecting a volume and virtualizing it as an external volume.

Allocating global-active device pairs

Explains how to allocate new global-active device pairs to hosts using Hitachi Command Suite.

6 Disaster recovery of global-active device

Failure locations

Describes common GAD failure locations, associated SIMs, and volume accessibility.

SIMs related to GAD

Lists SIM (System Information Message) reference codes and descriptions relevant to GAD operations.

Pair condition before failure

Details the state of GAD pairs, I/O modes, and volume accessibility before a failure occurs.

Pair condition and recovery: server failures

Explains pair status transitions and recovery procedures when server failures occur in a GAD setup.

Pair condition and recovery: path failure between the server and storage system

Details recovery procedures for path failures between servers and storage systems in GAD.

Pair condition and recovery: P-VOL failure (LDEV blockade)

Covers recovery steps for GAD pairs experiencing a P-VOL failure (LDEV blockade).

Pair condition and recovery: S-VOL failure (LDEV blockade)

Details recovery procedures for GAD pairs experiencing an S-VOL failure (LDEV blockade).

7 Planned outage of global-active device storage systems

Planned power off;on of the primary storage system

Provides steps for safely powering off and on the primary storage system for planned outages.

Planned power off;on of the secondary storage system

Outlines the process for powering off and on the secondary storage system during planned outages.

Planned power off;on of the external storage system (I;O at primary site)

Describes procedures for managing the external storage system during planned outages with I/O at the primary site.

Planned power off;on of the primary and secondary storage systems

Covers steps for performing planned power off/on for both primary and secondary storage systems simultaneously.

8 Data migration and volume reuse

Workflow for data migration

Outlines the process of performing nondisruptive data migration using global-active device.

Reusing volumes after data migration

Provides instructions on reusing volumes that were part of GAD pairs after data migration.

9 Troubleshooting

General troubleshooting

Offers general guidance and recommended actions for troubleshooting common GAD problems.

Troubleshooting related to remote path status

Details how to troubleshoot and resolve issues related to the status of remote paths in GAD configurations.

Error codes and messages

Lists and explains error codes and messages encountered during GAD operations for troubleshooting.

Calling Hitachi Data Systems customer support

Provides information and guidance on contacting Hitachi Data Systems customer support for technical assistance.

A Correspondence between GUI operations and CLI commands

Correspondence between GUI operations and CCI commands

Shows the relationship between GUI operations and corresponding CLI commands for GAD management.

Hitachi G1000 Specifications

General

Category	Storage
Form Factor	Rack-mountable
Drive Types Supported	SSD, SAS
RAID Levels	0, 1, 5, 6, 10
Management Software	Hitachi Storage Navigator
Redundancy	Fully redundant components
Power Supply	Redundant power supplies
Cooling	Redundant cooling fans
Model	Hitachi G1000