Title:
USING TRACK STATUS INFORMATION ON ACTIVE OR INACTIVE STATUS OF TRACK TO DETERMINE WHETHER TO PROCESS A HOST REQUEST ON A FAST ACCESS CHANNEL
Document Type and Number:
WIPO Patent Application WO/2023/029729
Kind Code:
A1
Abstract:
Provided are a computer program product, system, and method for using track status information on active or inactive status of track to determine whether to process a host request on a fast access channel. A host request to access a target track is received on a first channel to the host. A determination is made as to whether the target track has active or inactive status. The target track has active status when at least one process currently maintains a lock on the target track that prevents access and the target track has inactive status when no process maintains a lock on the target track that prevents access. Fail is returned to the host to cause the host to resend the host request on a second channel in response to the target track having the active status. The first channel has lower latency than the second channel.
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Inventors:
GUPTA LOKESH MOHAN (US)
PETERSON BETH ANN (US)
BORLICK MATTHEW G (US)
PETERSON BETH ANN (US)
BORLICK MATTHEW G (US)
Application Number:
PCT/CN2022/103651
Publication Date:
March 09, 2023
Filing Date:
July 04, 2022
Export Citation:
Assignee:
IBM (US)
IBM CHINA CO LTD (CN)
IBM CHINA CO LTD (CN)
International Classes:
G06F12/0802
Foreign References:
| US20170124000A1 | 2017-05-04 | |||
| CN111881068A | 2020-11-03 | |||
| CN111837102A | 2020-10-27 | |||
| US20100257321A1 | 2010-10-07 | |||
| US20150127908A1 | 2015-05-07 |
Attorney, Agent or Firm:
CCPIT PATENT AND TRADEMARK LAW OFFICE (CN)
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