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HP XP Continuous Access Software User Manual

Page 332

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332

HP StorageWorks Disk Array XP RAID Manager: User’s Guide

• If a takeover operation is attempted while both volumes are SMPL

(State 1), an EX_VOLCRE error results. If pairvolchk is executed
during a volume group split, it would likely return an EX_ENQVOL
error, indicating that the statuses of the volumes in the group do not
match.

• If a takeover is needed during State 15 (copy), the HA script could

either run pairevtwait to wait for PAIR state, or prompt for system
administrator intervention. If you choose to continue, an
SVOL-takeover and an EX_VOLCUR error results.

An attempt to execute pairvolchk in the middle of a group paircreate
returns an EX_ENQVOL error on the DC2 side.

Host A

SMPL

DC2

Host B

SMPL

DC1

State No.1

pairsplit -S

Host A

SVOL

COPY

DC2

Host B

PVOL
COPY

DC1

State No.15

paircreate -vl

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