On 2018-03-15 01:45 PM, Martin K. Petersen wrote:
Kashyap,
/me naively wonders if it has anything to do with accessing it via
Linux.
I'm guessing that the drive doesn't actually support SCSI UNMAP. I have
a T3 that reports all the right things in the bl/lbpv VPD pages but also
has lbpme set to 0.
Interestingly enough, my T3 does appear to be a regular SATA drive
behind a USB bridge. Have you tried to issue a DSM TRIM command via ATA
passthrough?
hdparm can do that. Look for "EXCEPTIONALLY DANGEROUS. DO NOT USE THIS
OPTION!!" in its manpage :-)
Doug Gilbert
