Storing log snapshots in an automated data storage library

• US 10,540,241 B2
• Filed: 10/19/2016
• Issued: 01/21/2020
• Est. Priority Date: 10/19/2016
• Status: Active Grant

• Current Assignee: International Business Machines Corporation
• Original Assignee: International Business Machines Corporation
• Inventors: Goodman, Brian G., Jesionowski, Leonard G., Miranda Gavillan, Jose G., Qiu, Kenny N. G.
• Primary Examiner(s): Lo, Ann J
• Assistant Examiner(s): Wei, Jane
• Application Number:
  US15/297,470
• Publication Number:
  US 20180107411A1
• Time in Patent Office: 1,189 Days
• CPC Class Codes: G06F 11/0787 Storage of error reports, e.g. persistent data storage, storage using memory protection
• CPC Class Codes: G06F 11/1471 involving logging of persistent data for recovery
• CPC Class Codes: G06F 17/40 Data acquisition and logging for input to computer G06F3/00

Abstract

Embodiments for storing log snapshots in an automated data storage library by a processor. A log snapshot is saved on a node associated with the automated data storage library for subsequent retrieval such that each of a plurality of saved log snapshots saved from a plurality of nodes associated with the automated data storage library are aggregated for exporting to a user.

Claims

1. A method, by one or more processors, for storing log snapshots in an automated data storage library, comprising:

saving a log snapshot on a node associated with the automated data storage library for subsequent retrieval such that each of a plurality of saved log snapshots saved from a plurality of nodes associated with the automated data storage library are aggregated for exporting to a user;

wherein each of the plurality of saved log snapshots include at least diagnostic information, statistical information, configuration information, backup information at an appliance-level of the automated data storage library including trace data associated with logged operations of physical components of the automated data storage library during a timestamped timeframe, and database information associated with data storage media stored within the automated data storage library; and

wherein the log snapshot is established according to a start time and an end time associated with a respective first and last entry of the trace data during the timestamped timeframe; and

aggregating each of the plurality of saved log snapshots from each respective one of the plurality of nodes upon receiving a request to export the plurality of saved log snapshots;

wherein each respective one of the plurality of nodes saves a respective one of the plurality of saved log snapshots according to a triggering event being detected, notwithstanding the plurality of saved log snapshots are individually stored on each respective one of the plurality of nodes until being aggregated together upon receiving the request to export.

2. The method of claim 1, wherein the node is a library controller, a drive controller, a component controller, a device controller, or combinations thereof.

3. The method of claim 1, further including saving the log snapshot on the node upon detecting at least one of a library error, a drive error, a component error, a device error, a host error, activation of a designated physical or logical log collection mechanism, opening a library door, closing a library door, a component replacement, a library reset, a component reset, a device reset, a drive reset, identifying a new unique identifier of a library component, a user logging into the library under a service role, or a combination thereof, wherein the node is performing a function of the automated data storage library.

4. The method of claim 1, further including aggregating each of the plurality of saved log snapshots from each respective one of the plurality of nodes as a background operation of the automated data storage library.

5. The method of claim 1, further including performing one or more of:

aggregating each of the plurality of saved log snapshots from each respective one of the plurality of nodes while the automated data storage library is idle;

or

aggregating each of the plurality of saved log snapshots from each respective one of the plurality of nodes upon detecting an absence of one or more host commands.

6. The method of claim 1, further including coordinating the plurality of saved logs for the aggregation using at least a file name, file metadata, a data structure, or a combination thereof.

7. A system for storing log snapshots in an automated data storage library, comprising:

one or more processors with executable instructions that when executed cause the system to;

save a log snapshot on a node associated with the automated data storage library for subsequent retrieval such that each of a plurality of saved log snapshots saved from a plurality of nodes associated with the automated data storage library are aggregated for exporting to a user;

wherein each of the plurality of saved log snapshots include at least diagnostic information, statistical information, configuration information, backup information at an appliance-level of the automated data storage library including trace data associated with logged operations of physical components of the automated data storage library during a certain timeframe, and database information associated with data storage media stored within the automated data storage library; and

wherein the log snapshot is established according to a start time and an end time associated with a respective first and last entry of the trace data during the timestamped timeframe; and

aggregate each of the plurality of saved log snapshots from each respective one of the plurality of nodes upon receiving a request to export the plurality of saved log snapshots;

wherein each respective one of the plurality of nodes saves a respective one of the plurality of saved log snapshots according to a triggering event being detected, notwithstanding the plurality of saved log snapshots are individually stored on each respective one of the plurality of nodes until being aggregated together upon receiving the request to export.

8. The system of claim 7, wherein the executable instructions further save the log snapshot on the node upon detecting an error in the automated data storage library.

9. The system of claim 7, wherein the executable instructions further save the log snapshot on the node upon detecting at least one of a library error, a drive error, a component error, a device error, a host error, activation of a designated physical or logical log collection mechanism, opening a library door, closing a library door, a component replacement, a library reset, a component reset, a device reset, a drive reset, identifying a new unique identifier of a library component, a user logging into the library under a service role, or a combination thereof, wherein the node is performing a function of the automated data storage library.

10. The system of claim 7, wherein the node is a library controller, a drive controller, a component controller, a device controller, or combinations thereof.

11. The system of claim 7, wherein the executable instructions further perform one or more of:

aggregating each of the plurality of saved log snapshots from each respective one of the plurality of nodes as a background operation of the automated data storage library;

aggregating each of the plurality of saved log snapshots from each respective one of the plurality of nodes while the automated data storage library is idle; and

aggregating each of the plurality of saved log snapshots from each respective one of the plurality of nodes upon detecting an absence of one or more host commands.

12. The system of claim 7, wherein the executable instructions further coordinate the plurality of saved logs for the aggregation using at least a file name, file metadata, a data structure, or a combination thereof.

13. A computer program product for, by one or more processors, storing log snapshots in an automated data storage library, 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 saves a log snapshot on a node associated with the automated data storage library for subsequent retrieval such that each of a plurality of saved log snapshots saved from a plurality of nodes associated with the automated data storage library are aggregated for exporting to a user;

wherein each of the plurality of saved log snapshots include at least diagnostic information, statistical information, configuration information, backup information at an appliance-level of the automated data storage library including trace data associated with logged operations of physical components of the automated data storage library during a certain timeframe, and database information associated with data storage media stored within the automated data storage library; and

wherein the log snapshot is established according to a start time and an end time associated with a respective first and last entry of the trace data during the timestamped timeframe; and

an executable portion that aggregates each of the plurality of saved log snapshots from each respective one of the plurality of nodes upon receiving a request to export the plurality of saved log snapshots;

wherein each respective one of the plurality of nodes saves a respective one of the plurality of saved log snapshots according to a triggering event being detected, notwithstanding the plurality of saved log snapshots are individually stored on each respective one of the plurality of nodes until being aggregated together upon receiving the request to export.

14. The computer program product of claim 13, further including an executable portion that saves the log snapshot on the node upon detecting at least one of a library error, a drive error, a component error, a device error, a host error, activation of a designated physical or logical log collection mechanism, opening a library door, closing a library door, a component replacement, a library reset, a component reset, a device reset, a drive reset, identifying a new unique identifier of a library component, a user logging into the library under a service role, or a combination thereof, wherein the node is performing a function of the automated data storage library.

15. The computer program product of claim 13, wherein the node is a library controller, a drive controller, a component controller, a device controller, or combinations thereof.

16. The computer program product of claim 13, further including an executable portion that:

aggregates each of the plurality of saved log snapshots from each respective one of the plurality of nodes as a background operation of the automated data storage library;

aggregates each of the plurality of saved log snapshots from each respective one of the plurality of nodes while the automated data storage library is idle;

or

aggregates each of the plurality of saved log snapshots from each respective one of the plurality of nodes upon detecting an absence of one or more host commands.

17. The computer program product of claim 13, further including an executable portion that coordinates the plurality of saved logs for the aggregation using at least a file name, file metadata, a data structure, or a combination thereof.