Innodisk iData Guard Technology for SSDs

Revision History

Date

Version

Information

2013.08

1.0

First Release

2013.11

1.1

Revised phrase from Power secure to iData

Guard

2014.4

1.2

Adding products information

2014.11

1.3

Modifying the description of capacitor and

products information

2016.08

1.4

Revised product information

Introduction

Data integrity during an unexpected loss of power is a critical issue in

industrial applications such as data recorders, enterprise data centers,

medical devices, network appliances, etc. Innodisk’s iData Guard is our

patented Power Cycling DATA Management system, that ensures data

integrity in case of a sudden power outage. Innodisk’s iData Guard is

comprised of a hardware and firmware power-down recovery algorithm that

reduces the probability of data loss and corruption.

The Importance of iData Guard Data Protection

Solid-state drives (SSDs) are more robust than traditional HDDs; they are

more engery efficient, have faster read/write/access times, and have longer

MTBF. However, neither device can prevent an abnormal power failure.

Systems may not always properly shutdown, in which case users may find

their drives susceptible to data and file corruption. The programming

operation in a flash-based SSD needs to be completed to ensure that the

data is stored successfully. If the operation is stopped due to loss of power,

there can be inconsistencies in the data; the page may not load successfully,

and an ECC failure may occur. Innodisk iData Guard technology resolves this

issue with a built-in low power detector (4V by 5V power-in; 2.9V by 3.3V

power-in)on our SSDs, to check for a sudden loss of power. Once the low

power detector is triggered, a safe power-down recovery algorithm is

executed to help prevent data loss and ensure data integrity.