Abstract: Methods, apparatus, and processor-readable storage media for implementing host-controlled service levels are provided herein. An example computer-implemented method includes obtaining, at a storage node of a storage system, information comprising one or more identifiers and one or more service levels that are assigned to virtual machines identified by the one or more identifiers; extracting one of the one or more identifiers from an input-output operation received at the storage node; identifying, based on the extracted identifier, the service level that is assigned to the virtual machine that initiated the input-output operation; and controlling storage resources allocated for one or more additional input-output operations from one or more of the virtual machines based at least in part on the identified service level.

Abstract: Techniques for processing I/O operations may include: receiving, an I/O operation including a tag value denoting a process of a database application that issued the I/O operation; determining, in accordance with the tag value, whether the I/O operation is directed to a data file storing content of a database or a log file of recorded operations of the database; and responsive to determining the I/O operation is directed to a data file storing content of the database, performing processing including: determining a current configuration setting of the database that indicates whether the database is configured for use with the database application as an in-memory database; and determining, in accordance with current configuration setting of the database, a first service level objective for the I/O operation, wherein the first service level objective for the I/O operation is a default service level objective or a revised service level objective.

Abstract: Techniques for processing I/O operations may include: receiving, an I/O operation including a tag value denoting a process of a database application that issued the I/O operation; determining, in accordance with the tag value, whether the I/O operation is directed to a data file storing content of a database or a log file of recorded operations of the database; and responsive to determining the I/O operation is directed to a data file storing content of the database, performing processing including: determining a current configuration setting of the database that indicates whether the database is configured for use with the database application as an in-memory database; and determining, in accordance with current configuration setting of the database, a first service level objective for the I/O operation, wherein the first service level objective for the I/O operation is a default service level objective or a revised service level objective.