[Bug-ddrescue] (Not-a-bug) just question about 520-bytes-perfectly drives

[Oleg Krutov]

Hello!

Is it physically possible to read data from SAS/SCSI drives that have more
than 512 (usually -- 520) bytes per sector? These drives are not properly
detected by kernel ("Unsupported sector size 520. 0 512-byte logical
blocks"), so it can be read only via sg_raw utility by direct scsi
commands, by little chunks and very slowly. Maybe there is an opportunity
to read a drive "more directly" than with O_DIRECT flag?

Thank you!