US 10,871,960 B2Granted

Upgrading a storage controller operating system without rebooting a storage system

AssigneeEMC IP Holding Company LLC

InventorsErez Bashi, Alexander Shraifel, Alex Kulakovsky, Sally Golan

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Abstract

An apparatus in one embodiment is configured to extract a set of components utilized in a first version of a storage controller operating system (OS) to a designated partition of a storage system on which the first version of the storage controller OS is to be installed, and to identify changes to be applied for installing the first version of the storage controller OS by comparing content of the extracted set of components utilized in the first version of the storage controller OS with content of components utilized in a second version of the storage controller OS that is currently installed. The apparatus is also configured to apply, utilizing at least one rule corresponding to at least one component utilized in the first version of the storage controller OS, at least one of the identified changes to upgrade to the first version of the storage controller OS.

Claims20

Dependent claims

An apparatus comprising:

at least one processing device comprising a processor coupled to a memory;
said at least one processing device being configured:
to extract a set of components utilized in a first version of a storage controller operating system to a designated partition of one of a plurality of storage devices of a given storage system on which the first version of the storage controller operating system is to be installed;
to identify one or more changes to be applied for installing the first version of the storage controller operating system on the given storage system by comparing content of the extracted set of components utilized in the first version of the storage controller operating system with content of components utilized in a second version of the storage controller operating system currently installed on the given storage system;
and
to apply, utilizing at least one rule corresponding to a given one of the components utilized in both the first version of the storage controller operating system and the second version of the storage controller operating system, at least a given one of the identified changes to the given component to upgrade the second version of the storage controller operating system to the first version of the storage controller operating system;
wherein the given component provides front-end connectivity to one or more host devices providing input-output requests directed to the plurality of storage devices of the given storage system;
and
wherein applying the given identified change to the given component comprises at least temporarily disabling front-end connectivity of the given storage system to the one or more host devices while maintaining back-end processing for handling the input-output requests directed to the plurality of storage devices of the given storage system.

6 more elements

A method comprising:

extracting a set of components utilized in a first version of a storage controller operating system to a designated partition of one of a plurality of storage devices of a given storage system on which the first version of the storage controller operating system is to be installed;
identifying one or more changes to be applied for installing the first version of the storage controller operating system on the given storage system by comparing content of the extracted set of components utilized in the first version of the storage controller operating system with content of components utilized in a second version of the storage controller operating system currently installed on the given storage system;
and
applying, utilizing at least one rule corresponding to a given one of the components utilized in both the first version of the storage controller operating system and the second version of the storage controller operating system, at least a given one of the identified changes to the given component to upgrade the second version of the storage controller operating system to the first version of the storage controller operating system;
wherein the given component provides front-end connectivity to one or more host devices providing input-output requests directed to the plurality of storage devices of the given storage system;
wherein applying the given identified change to the given component comprises at least temporarily disabling front-end connectivity of the given storage system to the one or more host devices while maintaining back-end processing for handling the input-output requests directed to the plurality of storage devices of the given storage system;
and
wherein the method is implemented by at least one processing device comprising a processor coupled to a memory.

5 more elements

A computer program product comprising a non-transitory processor-readable storage medium having stored therein program code of one or more software programs, wherein the program code when executed by at least one processing device causes said at least one processing device:

to extract a set of components utilized in a first version of a storage controller operating system to a designated partition of one of a plurality of storage devices of a given storage system on which the first version of the storage controller operating system is to be installed;
to identify one or more changes to be applied for installing the first version of the storage controller operating system on the given storage system by comparing content of the extracted set of components utilized in the first version of the storage controller operating system with content of components utilized in a second version of the storage controller operating system currently installed on the given storage system;
and
to apply, utilizing at least one rule corresponding to a given one of the components utilized in both the first version of the storage controller operating system and the second version of the storage controller operating system, at least a given one of the identified changes to the given component to upgrade the second version of the storage controller operating system to the first version of the storage controller operating system;
wherein the given component provides front-end connectivity to one or more host devices providing input-output requests directed to the plurality of storage devices of the given storage system;
and
wherein applying the given identified change to the given component comprises at least temporarily disabling front-end connectivity of the given storage system to the one or more host devices while maintaining back-end processing for handling the input-output requests directed to the plurality of storage devices of the given storage system.

4 more elements

Dependencies are inferred from the claim text.

Facts

Application: 16/391,524Filed 23 Apr 2019
Published: US 2020/0341749 A129 Oct 2020
Granted: 22 Dec 2020
Term ends: Not estimatedThe source records don’t support an estimate.

Classification7 codes

G06F 8/654
Updates: using techniques specially adapted for alterable solid state memories, e.g. for EEPROM or flash memories
G06F 3/0604
Specifically adapted to achieve a particular effect: improving or facilitating administration, e.g. storage management
G06F 3/0607
Improving or facilitating administration, e.g. storage management: by facilitating the process of upgrading existing storage systems, e.g. for…
G06F 3/0632
Configuration or reconfiguration of storage systems: by initialisation or re-initialisation of storage systems

Family

US 2020/0341749 A1Pre-grant publication · published 29 Oct 2020
US 10,871,960 B2This patent

From the US filing history. Foreign family members aren’t listed.

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