>>>>> "Mike" == Mike Mestnik <cheako@xxxxxxxx> writes: >> Recent changes upstream export alignment and optimal IO size for you >> (at least for software RAID/dm devices) and for some external arrays >> if the vendor exports the information in a standard way. >> Mike> Would this include eSATA DAS units? Example: LaCie 4big Quadra No. Only SCSI devices report the necessary information. There are no comparable fields in ATA-ACS. Mike> I can't discover or alter the IO size on this device and have not Mike> received an answer from LaCie support. They did say something to Mike> the effect of "We don't have this information in our Mike> documentation, so it must be I.P. that I can't disclose." I.e. "we source this controller from a company in China and have no idea". -- Martin K. Petersen Oracle Linux Engineering -- To unsubscribe from this list: send the line "unsubscribe linux-ext4" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
