Data protection scheduling, such as providing a flexible backup window in a data protection system

• US 10,198,324 B2
• Filed: 06/03/2014
• Issued: 02/05/2019
• Est. Priority Date: 06/18/2008
• Status: Active Grant

• Current Assignee: CommVault Systems Incorporated
• Original Assignee: CommVault Systems Incorporated
• Inventors: Kottomtharayil, Rajiv
• Primary Examiner(s): Nguyen, Thuong
• Application Number:
  US14/294,344
• Publication Number:
  US 20140279922A1
• Time in Patent Office: 1,708 Days
• Field of Search: 709240, 709203, 718100, 718102, 711170, 711154
• CPC Class Codes: G06F 11/1461 Backup scheduling policy
• CPC Class Codes: G06F 11/1464 for networked environments
• CPC Class Codes: G06F 2209/5019 Workload prediction
• CPC Class Codes: G06F 2209/506 Constraint
• CPC Class Codes: G06F 9/505 considering the load

Abstract

A data protection scheduling system provides a flexible or rolling data protection window that analyzes various criteria to determine an optimal or near optimal time for performing data protection or secondary copy operations. While prior systems may have scheduled backups at an exact time (e.g., 2:00 a.m.), the system described herein dynamically determines when to perform the backups and other data protection storage operations, such as based on network load, CPU load, expected duration of the storage operation, rate of change of user activities, frequency of use of affected computer systems, trends, and so on.

Claims

1. A method in a data storage system for performing a data storage operation on a set of data, the method comprising:

during a time window having a start time and an end time, determining that a condition associated with a data storage operation to be performed by the data storage system on a set of data satisfies a threshold condition,

wherein the time window is associated with performing multiple data storage operations within the data storage system and is selected based on a predicted network load applied to the data storage system during performance of the multiple data storage, operations;

scheduling a time to start the data storage operation within the selected time window;

performing at least a portion of the data storage operation on the set of data within the selected time window; and

monitoring usage of resources during performance of the at least portion of the data storage operation to determine whether to dynamically alter the schedule for performing a remaining portion of the data storage operation;

comparing remaining time within the time window to an estimated time remaining to complete the remaining portion of the data storage operation; and

when the remaining time within the time window is less than the estimated time to complete the remaining portion of the data storage operation, performing the remaining portion of the data storage operation by;

completing data storage jobs for a first type of data of the set of data; and

delaying data storage jobs for a second type of data within the set of data.

2. The method of claim 1, wherein the condition associated with the data storage operation relates to information included in a request to perform the data storage operation.

3. The method of claim 1, wherein the condition associated with the data storage operation relates to characteristics of resources within the data storage system.

4. The method of claim 1, wherein the condition is calculated from multiple criteria, the criteria including:

a first criterion associated with a relative priority to the data storage operation; and

a second criterion associated with a determined usage of resources within the data storage system.

5. The method of claim 1, wherein the threshold condition is dynamically determined based on a characteristic of the performing data storage operation.

6. The method of claim 1, further comprising:

stopping the data storage operation at a time after the scheduled time when the condition does not satisfy the threshold condition; and

restarting the data storage operation at a next time after the scheduled time when the condition satisfies the threshold condition.

7. The method of claim 1, wherein the data storage operation is a backup operation performed to create a backup copy of a primary copy of data produced by a computing system.

8. The method of claim 1, wherein the data storage operation is a secondary copy operation performed to create a secondary copy of a primary copy of data produced by a computing system.

9. A non-transitory computer-readable medium whose contents, when executed by a data storage system, cause the data storage system to perform a method of backing up a set of data, the method comprising:

scheduling a time to start a backup operation within a selected time window for performing backup operations within the data storage system,

wherein the time window is associated with performing multiple data storage operations within the data storage system and is selected based on a predicted network load applied to the data storage system during performance of the multiple data storage operations;

performing at least a portion of the backup operation on the set of data within the selected time window; and

monitoring usage of resources during performance of the at least portion of the backup operation to determine whether to dynamically alter the backup operation;

comparing remaining time within the selected time window to an estimated time to complete an unfinished portion of the backup operation; and

when the remaining time within the selected time window is less than the estimated time to complete the unfinished portion of the backup operation, performing the unfinished portion of the data storage operation by;

completing data storage jobs for a first type of data of the set of data; and

delaying data storage jobs for a second type of data within the set of data.