HP XP Array Manager Software - Manual (Page 14)

1-4 Overview of Hitachi Cache Manager
Hitachi Cache Manager User’s Guide
User data can be removed from cache, but with the cache extent information
maintained in the disk controller in the following cases:
• By using the SETCACHE command (provided by the IDCAMS utilities of
MVS/ESA, OS/390
® , z/OS ® ) with the REINITIALIZE parameter,
• If there is an offline microcode change,
• If there is a cache memory failure (partial or module down) during
maintenance.
Cache extent information is deleted in the following cases:
• Using the BIND command with the DISABLE parameter,
• By using the SETCACHE command (provided by IDCAMS utilities of
MVS/ESA, OS/390, z/OS) with the SYSTEM OFF or DEVICE OFF
parameter.