Instruction Manual
Table Of Contents
- G2 Backup System user guide
- Contents
- 1 Getting started
- 2 Home, Summary
- 3 Virtual Tape Devices
- 4 NAS
- 5 Appliance Configuration
- 6 Status
- 7 Replication
- 8 Administration
- 9 Restore processes with replication
- 10 Restore processes without replication
- 11 Understanding LEDs
- 12 Hardware monitoring
- 13 Troubleshooting
- Connecting to the StoreOnce Backup System from the backup application
- Connecting to the network
- Using the 10Gb ports (HP D2D4300 Series only)
- Performance
- Web Management Interface errors and warnings
- Power On/Off Problems
- Cannot connect to Web Management Interface
- NFS State handle error
- Cannot authenticate an iSCSI session
- Diagnostic Fibre Channel device
- If the HP StoreOnce Backup System runs out of disk space
- Cannot access a storage shelf (HP D2D4100 and 4300 Series Backup Systems)
- If backup or replication fails
- Recovering Devices that have ‘failed to start’ or have become read-only
- StoreOnce Backup System configuration problems
- Upgrade licenses
- Replacement of hardware
- Upgrades to component parts
- 14 Hard disk replacement
- A Extra information for G1 products
- Glossary
- About this guide
- Index

Promoting a Target Library over the WAN using iSCSI
The remote site has lost both the host servers and the StoreOnce system. New server hardware
has been purchased and installed and the admin now wants to recover data to the server. The
admin has not installed a new StoreOnce Backup System and is going to recover data directly to
the server from the Data Center StoreOnce Backup System over the WAN (which will take a long
time).
NOTE: The procedure described below retains the ability to back up to the Target Library. If this
is not required, a simpler solution may be to make the Target Library visible (but read-only), see
Backup applications and Replication Target libraries (page 16).
Figure 9 Recovery by promoting a Target Library
Before the failure a mapping existed between a Source Library on the remote site StoreOnce
Backup System and a Target Library on the Data Center StoreOnce Backup System. After the failure
the mapping still exists but the Source Library is missing. The Target Library on the Data Center
StoreOnce Backup System is still in Target Library mode, it has not had its mappings removed.
IMPORTANT: This recovery method is not suitable if the Target Library also has slot mappings
from Source Libraries on other remote sites.
1. On the Target Appliance in the Data Center, go to the Replication - Mapping Configuration
page, select the Target Library and remove the slot mapping between it and the lost Source
Library.
2. As long as there is only one slot mapping to the Target Library, it will become a Non-Replicating
Library.
NOTE: If there are other mappings, do not remove them if it will break other library
replication. Do not proceed, this method is not suitable.
3. Edit the port configuration of the newly promoted Non-Replicating Library to make it iSCSI.
4. Install the iSCSI initiator on the host machine at the remote site where recovery is to occur and
install the backup application.
5. Configure the iSCSI Initiator Name for the newly promoted Non-Replicating Library to be that
of the host system.
6. Connect to the Data Center appliance and library via iSCSI from the host at the remote site.
7. Import the cartridges into the backup application and recover the data over the WAN.
100 Restore processes with replication