Hewlett Packard Enterprise HPE XP7, User Manual, Page: 182 / 311

Problem Causes and solutions
An error occurred while
restoring the pair. Cause: A volume is blocked because a failure occurred in the data drive.
Solution:
1. Delete the blocked FS pair (see Deleting Fast Snap pairs on page 129).
2. Contact HPE technical support.
A volume is blocked. Causes:
• A failure occurred in at least two data drives.
• The breaker was turned off once and then the power supply switched on.
Solution: Contact HPE technical support.
A problem occurred in the
host application for
monitoring the volumes. Cause: Access to the volume is rejected.
Solution:
1. Stop the host application monitoring the volumes.
2. Split all of the pairs ("PSUS" status or an unpaired volume) (see Splitting Fast
Snap pairs to store snapshot data on page 120).
3. Start the monitoring application on the host and check whether the host has
access to pair volumes (see
How Fast Snap pair status changes on page 29).
A virtual volume cannot be
recognized correctly after
the host server is booted/
rebooted or the command
for recognizing a device is
performed. Cause: Access to the volume is rejected.
Solution:
1. Stop the host application monitoring the volumes.
2. Split all of the pairs ("PSUS" status or an unpaired volume) (see Splitting Fast
Snap pairs to store snapshot data on page 120).
3. Reboot the host server or run a command that causes the system to recognize
the device.
4. Start the monitoring application on the host and check whether the host has
access to pair volumes (see
How Fast Snap pair status changes on page 29).
The host computer
attempts to access the
port and an error occurs. Cause: A port may go offline because access to a volume on another port has been
rejected.
Solutions:
• Wait until the process has completed, and then retry the task.
• If a host application is installed to monitor the volume, stop the application.
Table Continued
182 Troubleshooting Fast Snap