Error recovery control: Difference between revisions

Revision as of 21:56, 26 May 2023

Revision as of 05:41, 1 August 2023

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===ATA-8 standard===

The 2006 ATA-8 standard defines a SCT {{tt|Error Recovery Control}} command.<ref>[https://www.singlix.org/trdos/8086/archive/specs/D1699r3e-ATA8_ACS.pdf–pdf ATA/ATAPI Command Set (ATA8-ACS) ]</ref> For hard drives that implement this interface, the {{Mono|smartctl}} utility (part of the [[smartmontools]] package) can be used to change the error-recovery timeout via {{code|-l scterc}}.<ref name=greg>{{Cite web |author=Richard Gregory |url=http://abatis.org.uk/projects/erc/ |title=Author's description of the original patch to smartctl that implemented that feature |access-date=2013-02-15 |archive-url=https://web.archive.org/web/20130910034510/http://cgi.csc.liv.ac.uk:80/~greg/projects/erc/ |archive-date=2013-09-10 |url-status=live }}</ref> In 2018, ACS-4 added a functionality for the setting to persist across reboot; it is now supported by smartctl.<ref>{{cite web |title=#1427 (Add support for SCT Error Recovery Timer features added in ACS-4) – smartmontools |url=https://www.smartmontools.org/ticket/1427 |website=www.smartmontools.org}}</ref>

Controlling the timeout behavior through the {{Mono|smartctl}} utility may not work on all hard disk drives because some manufacturers have changed their desktop drives not to include the support for the ERC parameter,<ref>{{cite web|url=http://www.spinics.net/lists/raid/msg38964.html|title=Re: md RAID with enterprise-class SATA or SAS drives|work=spinics.net}}</ref><ref>{{cite web|url=http://knowledge.seagate.com/articles/en_US/FAQ/203991en|title=Seagate FAQ: What is Error Recovery Control?|work=seagate.com}}</ref> purportedly to force sales of their more expensive RAID/enterprise models.{{Citation needed|date=April 2016}} Richard Gregory, who wrote the original ERC patch for smartctl, reports that Western Digital retracted ERC support by releasing a new model without notice.<ref name=greg/>