HP XP Racks - Manual (Page 73)

Suspended volume pair troubleshooting
A suspended volume pair is a pair in which normal data replication is not occurring between the
primary and secondary volumes. Until the failure or condition that caused the suspension is resolved,
production data on the primary volume is not copied to the secondary volume.
A number of failures or conditions can cause a volume pair to become suspended, including:
•
Power supply failure
•
Secondary storage system failure
•
Communication failure between the primary and secondary storage systems
•
I/O failures
•
Quorum disk failure
•
Incompatible host mode option settings
•
Incomplete initial copy operation
The troubleshooting procedures you use to resolve suspended volume pairs depends on the interface
you are using when the pair becomes suspended.
•
When using RWC
•
When using RAID Manager
The workflow for troubleshooting suspended pairs when using Remote Web Console
Use the following process to resolve suspended volume pairs when using RWC:
•
Checking the pair status on the Detailed Information dialog box.
•
Following the troubleshooting steps based on the suspend type and the volume type (primary
or secondary).
The following table lists the troubleshooting steps to use for each suspend type and volume type.
Corrective action Error VOL Type Suspend type
Clear the error condition at the secondary
storage system or S-VOL, then resynchronize
the pair from the primary storage system. The primary storage system detected
an error condition at the secondary
storage system which caused the P-VOL
S-VOL
PSUE,
by RCU
primary storage system to suspend the
pair. The S-VOL suspend type is S-VOL
Failure.
Do the following: The primary storage system detected
an error during communication with P-VOL
S-VOL
PSUE,
S-VOL Failure •
Check data path status on the secondary
storage system Status dialog box. Clear
any errors.
the secondary storage system, or an
I/O error during update copy.
The suspend type for the S-VOL is
usually S-VOL Failure. •
Clear any error conditions on the
secondary storage system or S-VOL.
•
After errors are cleared, resynchronize
from the primary storage system.
Do the following: The primary storage system detected
a failure in the quorum disk. P-VOL
S-VOL
PSUE,
S-VOL Failure • Recover the quorum disk failure by
following the recovery procedure defined
by the external storage system.
•
If SIMs related to External Storage are
issued, call the HP Support Center and
follow the recovery procedure defined by
the HP XP P9000 External Storage for
Open and Mainframe Systems User
Guide. After the failure is recovered,
Suspended volume pair troubleshooting 73