Patent ID: 7661044
Filing Date: 2010-02-09
Classification: G06F,G11C

Abstract:
1. A method for repairing memory failure in a computer system, comprising: receiving a command that a failed memory unit has been replaced and to test a new memory unit in a memory subsystem having one or more memory units concurrently being used by a running processor; determining a test pattern; determining time duration for testing the new memory unit; writing the test pattern to the new memory unit; reading the written test pattern from the new memory unit; comparing the test pattern read with the test pattern that was written, if the read test pattern and the written test pattern do not match, notifying that the new memory unit is bad and if the read test pattern and the written test pattern match, determining if the time duration for testing has expired; if the time duration has not expired, repeating the steps of writing, reading, and comparing; and if the time duration has expired, configuring the new memory as being available for use.