On Sunday 09 November 2003 03:45, Alejandro Sanchez Acosta wrote: > El s?, 08-11-2003 a las 05:08, Quinn Harris escribió: > > Did you enable IDE TCQ in your 2.6 kernel? To quote > > http://www.namesys.com/ download.html > > "Don't enable TCQ (Tagged Command Queuing) in 2.5 (and modified 2.4) > > kernels. TCQ is known broken currently and it will corrupt your > > filesystems for sure." > > What does it do Tagged Command Queuing? > > Thanks in advance. TCQ is a feature that allows a host to send multiple commands to IDE devices and have them queued and executed in the most efficient manner to the device, being interrupted as they become ready. This is a standard SCSI feature that is available on higher featured drives. Lots of drives don't have this feature, but once it's stable on Linux, it should be ok to enable it by default and let Linux disable it for devices that don't support it. However today it's not ready for production.
Marcelo Pacheco
