Donald J Penza

Address:

3208 Dorset Ln NW, Rochester, MN 55901

VIN:

5FNRL38497B421847

Make:

HONDA

Model:

ODYSSEY

Year:

2007

US Patent:

20200409779, Dec 31, 2020

Filed:

Nov 19, 2019

Appl. No.:

16/688992

Inventors:

- San Jose CA, US
Austin Striegel - Rochester MN, US
Jared Tesone - Poughkeepsie NY, US
Timothy Lieber - Colorado Springs CO, US
Evan Richardson - Rochester MN, US
Donald Penza - Rochester MN, US

International Classification:

G06F 11/07
G06F 11/10
G06F 11/14
G06F 11/20
G06F 11/30
G06F 3/06

Abstract:

An approach to identifying poorly performing data storage devices (DSDs) in a data storage system, such as hard disk drives (HDDs) and/or solid-state drives (SSDs), involves retrieving and evaluating a respective set of log pages, such as SCSI Log Sense counters, from each of multiple DSDs. Based on each respective set of log pages, a value for a Quality of Service (QoS) metric is determined for each respective DSD, where each QoS value represents an average percentage of bytes processed without the respective DSD performing an autonomous error correction. In response to a particular DSD reaching a predetermined threshold QoS value, an in-situ repair may be determined for the particular DSD or the particular DSD may be added to a list of candidate DSDs for further examination, which may include an FRPH examination for suitably configured DSDs.