NonStop Operating System Event Management Programming Manual

Disk Process Event Messages (ZDSK)
HP NonStop Operating System Event Management Programming Manual—520372-020
11-109
Messages
5066: ZDSK-EVT-REFRESH
A volume REFRESH or DISK CONTROL operation has been initiated.
Unconditional Tokens
Cause. A request was received for a DP2 volume. The request can be from a PUP
REFRESH command, from a call to the REFRESH subsystem procedure, or from an
SCF CONTROL DISK command.
Effect. A REFRESH results in a complete cache flush to disk, which can result in a
temporary loss of performance. If more than 100 cache blocks are configured and
many are dirty, service for other requests will be delayed.
Recovery. For D-series NonStop operating system RVUs, identify the PUP command
or application REFRESH procedure call, and remove it. Reducing the size of cache will
prevent any performance loss. For G-series and H-series NonStop operating system
RVUs, use the SCF CONTROL DISK command and specify the CACHE parameter.
Subject: ZEMS-TKN-LDEV
Potentially critical event: Yes
Action event: No
Message sender: Disk process (ZDSK)
TMDS collector: No
Unconditional Tokens
ZEMS-TKN-EVENTNUMBER token-type ZSPI-TYP-INT
ZEMS-TKN-LDEV token-type ZSPI-TYP-UINT
Event-Message Text
LDEV ldev
DP2 REFRESH cache flush initiated, performance loss is
possible.
Token Description
ZEMS-TKN-EVENTNUMBER Event number for this message. Value is ZDSK-EVT-
REFRESH (5066).
ZEMS-TKN-LDEV Subject token that specifies the logical device number of
the affected disk drive.