×

Cluster availability management

  • US 10,394,672 B2
  • Filed: 03/25/2011
  • Issued: 08/27/2019
  • Est. Priority Date: 06/28/2005
  • Status: Active Grant
First Claim
Patent Images

1. A method, comprising:

  • operating a first logical partition having transferable partition resources in a first physical processing complex of a server cluster in an active mode which includes operating an operating system and actively performing input/output operations between a host and a storage system, and a second logical partition having transferable partition resources in the same first physical processing complex and in a quiesced standby mode which includes operating an operating system but is otherwise substantially inactive as compared to said active mode wherein the transferable partition resources transferred to the second logical partition in the quiesced standby mode are reduced as compared to the transferrable partition resources transferred to the first logical partition in the active mode;

    detecting a failure in a second physical processing complex different from the first physical processing complex of the server cluster;

    in response to said failure detection, activating the standby logical partition in the first physical processing complex to operate in an active mode so that both the first and second logical partitions of the first physical processing complex operate in the active mode; and

    subsequent to activating the second logical partition, transferring partition resources from the first logical partition to the second logical partition while the first logical partition remains in the active mode;

    wherein said active mode operating includes providing access to a shared resource of data storage disk drives for a logical partition operating in an active mode and wherein said quiesced standby mode operating includes denying access to said shared resource of data storage disk drives for a logical partition operating in a quiesced standby mode.

View all claims
  • 0 Assignments
Timeline View
Assignment View
    ×
    ×