Logging addresses of high-availability data
AssigneeInternational Business Machines Corporation
InventorsSanjeev Ghai, Guy Lynn Guthrie, Hien Minh Le, Hugh Shen, Philip G. Williams
Life of this patent
Estimating the term…
Abstract
A technique for operating a high-availability (HA) data processing system includes, in response to receiving an HA logout indication at a cache, initiating a walk of the cache to locate cache lines in the cache that include HA data. In response to determining that a cache line includes HA data, an address of the cache line is logged in a first portion of a buffer in the cache. In response to the first portion of the buffer reaching a determined fill level, contents of the first portion of the buffer are logged to another memory. In response to all cache lines in the cache being walked, the cache walk is terminated.
Claims7
A method of operating a high-availability (HA) data processing system, comprising:
- in response to receiving an HA logout indication at a cache, initiating a walk of the cache to locate cache lines in the cache that include HA data, wherein the cache includes one or more cache lines that do not include HA data;
- in response to determining that a cache line includes HA data, logging an address of the cache line in a first portion of a buffer in the cache;
- in response to the first portion of the buffer reaching a determined fill level, transferring contents of the first portion of the buffer to another memory;
- and
- in response to all cache lines in the cache being walked, terminating the cache walk.
Dependencies are inferred from the claim text.