HP XP P9500 Storage - Manual (Page 68)

S-VOL
access P-VOL access Description Pair status
• When the operation is performed at the secondary system,
the status of the S-VOL changes to PSUS; the primary system
detects this (if path status is normal) and changes P-VOL status
to PSUS.
• When a pair is released from the secondary system, the
secondary system changes the status of the S-VOL to SMPL.
The primary system detects this (if path status is normal and
changes P-VOL status to PSUS. (The pair must be released
from the primary system to change P-VOL status to SMPL.)
See “PSUS types and behaviors” (page 71) for PSUS types.
Read Only Read/write;
Read only if
fenced. The pair is suspended due to an error; the pair is not
synchronized. PSUE
• The primary and secondary systems keep track of any journal
data that are discarded during the suspension operation.
•
The primary system keeps track of P-VOL tracks that are
updated while the pair is suspended.
• When a Cnt Ac-J suspension condition is detected, the primary
system changes P-VOL and S-VOL status to PSUE. If the
secondary system detects the condition, it changes the S-VOL
status to PSUE; the primary system detects this and changes
P-VOL status to PSUS.
See “PSUE types and behaviors” (page 72) for PSUE types.
Read Only Read/Write The pair is not synchronized. The pair is in transition to
PSUS/PSUE. Suspending
Read Only Read/Write The pair relationship is being deleted. When the operation is
completed, status changes to SMPL. Deleting (releasing)
68 Monitoring the system