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Petersen" , Sathya Prakash , Karel Zak , linux-block@vger.kernel.org Subject: Re: blkdiscard BLKDISCARD ioctl failed: Remote I/O error From: "Martin K. 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I moved the drive to onboard SATA controller and the > problem disappeared. Since the SCSI-ATA translation is done entirely inside the HBA I would suggest looking into updating the controller firmware. The mpt3sas driver doesn't really have anything to do with the discard handling in this configuration. -- Martin K. Petersen Oracle Linux Engineering