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Doc. Number Title Author Sub. Date
f14148r0
ACS-4: Increasing size of RANGE LENGTH field for DATA SET MANAGEMENT

In newer operating systems there are requests to trim very large areas when large files are deleted. Additionally, when UNMAP is translated to ATA, it would be desirable to send descriptors that do not contain odd (literally) sizes.

Neil Wanamaker 07/08/14

f13157r1
Extensions to Trim

Extensions to Trim

Jim Hatfield 02/07/14

f13157r0
Extensions to Trim

Extensions to Trim

Jim Hatfield 12/04/13

f12136r2
ACS-3 Trim some all clarification

Clarify when a device can trim some or all of the requested LBAs

Jeff Wolford 08/29/12

f12136r1
ACS-3 Trim some all clarification

Clarify when a device can trim some or all of the requested LBAs

Jeff Wolford 08/27/12

f12136r0
ACS-3 Trim some all clarification

Clarify when a device can trim some or all of the requested LBAs

Jeff Wolford 08/12/12

e09158r2
Trim Clarifications

Clarify some language around TRIM based on reflector traffic and ACS-2 letter ballot comments

Fred Knight 02/23/10

e09158r1
Trim Clarifications

Clarify some language around TRIM based on reflector traffic and ACS-2 letter ballot comments

Fred Knight 12/15/09

e09158r0
Trim Clarifications

Clarify some language around TRIM based on reflector traffic and ACS-2 letter ballot comments

Fred Knight 12/15/09

e09117r1
Read Zero after Trim

Add Identification bit to indicate when a device return data bits of all zero after a TRIM operation.

Frederick Knight 06/17/09

e09117r0
Read Zero after Trim

Add Identification bit to indicate when a device return data bits of all zero after a TRIM operation.

Frederick Knight 04/14/09

e08137r4
DRAT - Deterministic Read After Trim

Add Deterministic behavior to TRIM

Frederick Knight 12/17/08

e08137r3
DRAT - Deterministic Read After Trim

Add Deterministic behavior to TRIM

Frederick Knight 12/17/08

e08137r2
DRAT - Deterministic Read After Trim

Add Deterministic behavior to TRIM

Frederick Knight 12/06/08

e08137r1
DRAT - Deterministic Read After Trim

Add Deterministic behavior to TRIM

Frederick Knight 10/22/08

e08137r0
DRAT - Deterministic Read After Trim

Add Deterministic behavior to TRIM

Frederick Knight 10/21/08

e07154r3
Data Set Management Proposal for ATA-ACS2

Incorporated feedbacks from 9/16/07 T13 ad-hoc meeting, and moving “Trim” attribute ahead with space in protocol for extension of other attributes in future.

Frank Shu(Microsoft) 10/09/07

e07154r1
Data Set Management Proposal for ATA-ACS2

The first version of this proposal was called the “Trim” command proposal. The “trim” command carries information related to deleted data blocks to the device for optimization. Research has shown that information other than deleted data blocks provided by host can also be useful to device. One example would be the frequency of data access for writing or reading. A collected set of such information is called “data set attributes”. The proposal now is called “Data Set Management Commands”

Frank Shu(Microsoft) 08/20/07

0000404266    Copyright © 2014, Technical Committee T13 AT Attachment. All rights reserved.
Last update on 02/28/2008