US 11,755,479 B1
Storage management system and method
Geng Han, Beijing (CN); Vladimir Shveidel, Pardes Hana (IL); and Uri Shabi, Tel Mond (IL)
Assigned to EMC IP Holding Company, LLC, Hopkinton, MA (US)
Filed by EMC IP Holding Company, LLC, Hopkinton, MA (US)
Filed on Apr. 27, 2022, as Appl. No. 17/730,443.
This patent is subject to a terminal disclaimer.
Int. Cl. G06F 12/0802 (2016.01); G06F 3/06 (2006.01)
CPC G06F 12/0802 (2013.01) [G06F 3/061 (2013.01); G06F 3/0655 (2013.01); G06F 3/0679 (2013.01); G06F 2212/60 (2013.01)] 20 Claims
OG exemplary drawing
 
1. A computer-implemented method, executed on a computing device, comprising:
defining a normal IO write mode for writing data to a storage system, the normal IO writing mode including:
writing the data to a cache memory system,
writing the data to a journal,
in response to writing the data to the journal, sending an acknowledgment signal to a host device, and
writing the data from the cache memory system to a storage array;
receiving a request for the storage system to enter a testing IO write mode from the normal IO write mode; and
in response to receiving the request for the storage system to enter the testing IO mode from the normal IO write mode:
writing the data to the cache memory system;
bypassing the writing of the data to the journal;
in response to writing the data to the cache memory system, sending the acknowledgment signal to the host device; and
writing the data from the cache memory system to the storage array.