Western Digital Purple PR1000M, Technical Reference Manual

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PR1000M
D
ESCRIPTION AND
F
EATURES
2679-800020-A03 RELEASED 5/8/17 (WD CONFIDENTIAL) 3

48-bit Logical Block Addressing (LBA) — WD SATA drives support both 48-bit and 28-
bit LBA and CHS-based addressing. LBA is included in advanced BIOS and operating system
device drivers and ensures high capacity disk integration.

Power Management — The drive supports the ATA and SATA power
management command set, allowing the host to reduce the power consumption
of the drive by issuing a variety of power management commands.

Self-Monitoring, Analysis, and Reporting Technology (S.M.A.R.T.) — S.M.A.R.T.
enables a drive’s internal status to be monitored through diagnostic commands at
the host level and during offline activities. S.M.A.R.T. devices employ data analysis
algorithms that are used to predict the likelihood of some near-term degradation
or fault conditions. When used with a S.M.A.R.T. application, the drive can alert
the host system of a negative reliability status condition. The host system can
then warn the user of the impending risk of data loss and recommend an
appropriate action.

ATA Security — The drive supports the ATA Security Mode Feature set. The ATA
Security Mode feature set allows the user to create a device lock password that
prevents unauthorized hard disk access even if the drive is removed from the
host computer. The correct password must be supplied to the hard drive in order
to access user data. Both the User and Master Password features are supported,
along with the High and Maximum security modes. The Master Password Revision
code is also supported. This feature varies by drive configuration and may not be
available on all configurations.