Data co-location in a hierarchical storage management (hsm) system

Patent metadata

Field	Value
Publication number	US-2020326872-A1
Application number	US-201916381971-A
Country	US
Kind code	A1
Filing date	Apr 11, 2019
Priority date	Apr 11, 2019
Publication date	Oct 15, 2020
Grant date	—

Abstract

A system and method for data co-location in hierarchical storage management (HSM) system are presented. Related data units may be grouped to be collectively accessed from a plurality of data units stored on a first sequential media. The related data units may be migrated from the first sequential media in the HSM system to a second sequential media in the HSM system to sequential and continuous access to the related data units on the second sequential media.

First claim

1 . A method for implementing data co-location in hierarchical storage management (HSM) system by a processor, comprising:
automatically grouping related data units from a plurality of data units stored on a first sequential media; and migrating the related data units from the first sequential media in the HSM system to a second sequential media in the HSM system to enable sequential and continuous access to the related data units on the second sequential media.

2 . The method of claim 1 , further including performing the grouping and the migrating during a reclaim operation where only the related data units are saved to the second sequential media.

3 . The method of claim 1 , further including grouping the related data units according to name of directory of the data unit.

4 . The method of claim 1 , further including grouping the related data units according to a timestamp indicating a time of access of a data unit

5 . The method of claim 1 , further including performing a reclaim operation on the related data units such that the related data units in the second sequential media are arranged according to defined order.

6 . The method of claim 1 , further including:
migrating the related data units in a beginning section of the second sequential media; or migrating the related data units having a similar file group attribute in the beginning section of the second sequential media.

7 . The method of claim 1 , further including:
mapping the related data units, having a similar file group attribute, to a similar second sequential media; and saving the related data units, having the similar file group attribute, to the second sequential media.

8 . A system for data co-location in hierarchical storage management (HSM) system, comprising:
one or more computers with executable instructions that when executed cause the system to:
automatically group related data units from a plurality of data units stored on a first sequential media; and
migrate the related data units from the first sequential media in the HSM system to a second sequential media in the HSM system to enable sequential and continuous access to the related data units on the second sequential media.

9 . The system of claim 8 , wherein the executable instructions further perform the grouping and the migrating during a reclaim operation where only the related data units are saved to the second sequential media.

10 . The system of claim 8 , wherein the executable instructions further group the related data units according to name of directory of the data unit.

11 . The system of claim 8 , wherein the executable instructions further group the related data units according to a timestamp indicating a time of access of a data unit

12 . The system of claim 8 , wherein the executable instructions further perform a reclaim operation on the related data units such that the related data units in the second sequential media are arranged according to defined order.

13 . The system of claim 8 , wherein the executable instructions further:
migrate the related data units in a beginning section of the second sequential media; or migrate the related data units having a similar file group attribute in the beginning section of the second sequential media.

14 . The system of claim 8 , wherein the executable instructions further:
map the related data units, having a similar file group attribute, to a similar second sequential media; and save the related data units, having the similar file group attribute, to the second sequential media.

15 . A computer program product for, by a processor, implementing data co-location in hierarchical storage management (HSM) system, the computer program product comprising a non-transitory computer-readable storage medium having computer-readable program code portions stored therein, the computer-readable program code portions comprising:
an executable portion that automatically groups related data units from a plurality of data units stored on a first sequential media; and an executable portion that migrates the related data units from the first sequential media in the HSM system to a second sequential media in the HSM system to enable sequential and continuous access to the related data units on the second sequential media.

16 . The computer program product of claim 15 , further including an executable portion that performs the grouping and the migrating during a reclaim operation where only the related data units are saved to the second sequential media.

17 . The computer program product of claim 15 , further including an executable portion that:
groups the related data units according to name of directory of a data unit; or groups the related data units according to a timestamp indicating a time of access of a data unit.

18 . The computer program product of claim 15 , further including an executable portion that perform a reclaim operation on the related data units such that the related data units in the second sequential media are arranged according to defined order.

19 . The computer program product of claim 15 , further including an executable portion that:
migrates the related data units in a beginning section of the second sequential media; or migrates the related data units having a similar file group attribute in the beginning section of the second sequential media.

20 . The computer program product of claim 15 , further including an executable portion that:
maps the related data units, having a similar file group attribute, to a similar second sequential media; and saves the related data units, having the similar file group attribute, to the second sequential media.

Assignees

• IBM

Inventors

• Miyoshi Hiroyuki
• Araki Hiroshi
• Ishimoto Takeshi

Classifications

• G06F3/061 Primary

  Improving I/O performance · CPC title

• G06F3/0649

  Lifecycle management · CPC title

• G06F3/0685

  Hybrid storage combining heterogeneous device types, e.g. hierarchical storage, hybrid arrays · CPC title

• G06F3/0647 Primary

  Migration mechanisms · CPC title

• G06F3/0604

  Improving or facilitating administration, e.g. storage management · CPC title