UltraStar fails detection with "Unsupported sector size 524"

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I got a bunch of 72G IBM UltraStars that were taken from some
kind of IBM storage server.  The Linux kernel however doesn't
like them, complaining about a non-512 byte sector size:

scsi 0:0:1:0: Direct-Access     IBM      IC35L073UCDY10-0 S27N PQ: 0 ANSI: 3
scsi target0:0:1: tagged command queuing enabled, command queue depth 16.
scsi target0:0:1: Beginning Domain Validation
scsi target0:0:1: FAST-20 WIDE SCSI 40.0 MB/s ST (50 ns, offset 8)
scsi target0:0:1: Domain Validation skipping write tests
scsi target0:0:1: Ending Domain Validation
sd 0:0:1:0: [sdb] Unsupported sector size 524.

(that's from the 2.6.35 kernel's SYM53C8XX_2)

According to the datasheets these drives have soft-configurable
sector sizes from 512 up to 528 bytes, but they don't say how
that configuration is done.

Any ideas on how to reconfigure these drives for 512-byte sectors?

/Mikael
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