Table B-19 Drive Characteristics
Attribute Value
Minimum operating system versions Refer to the server product notes for minimum operating
system versions, hardware, firmware, and software
compatibility.
Life monitoring capability Provides alerts for proactive replacement of the drive
before the endurance is depleted. Provides endurance
remaining in NVMe SMART logs. SSD supports the
standard method defined by NVMe for Solid State Drive
to report NAND wear through the “Get Log” command
SMART/Health Information Percentage Used field. The
units are whole percentage of wear.
Percentage Used: Contains a vendor specific estimate of
the percentage of NVM subsystem life used based on
the actual usage and the manufacturer’s prediction of
NVM life. A value of 100 indicates that the estimated
endurance of the NVM in the NVM subsystem has been
consumed, but may not indicate an NVM subsystem
failure. The value is allowed to exceed 100. Percentages
greater than 254 are represented as 255. This value is
updated once per power-on hour (when the controller is
not in a sleep state).
Refer to the JEDEC JESD218A standard for SSD device
life and endurance measurement techniques.
Enhanced power-loss data
protection
Energy storage components complete buffered writes to
the persistent flash storage in case of a sudden power
loss.
Power loss protection capacitor self-
test
Supports testing of the power loss capacitor. Power is
monitored using SMART (Self-Monitoring, Analysis, and
Reporting Technology) attribute critical warning.
Out-of-Band Management (SMBUS) Managed through the SMBUS. Provides out-of-band
management by means of SMBUS interface. SMBUS
access includes NVMe-MI, the VPD page and
temperature sensor. On this device the VPD is supplied
as blank “FFs”.
Management utilities For more information about management utilities, refer to
the server documentation.
22TB Hard Disk Drive Specification
This section provides the specification for 22TB Hard Disk Drives.
The following tables list 22TB Hard Disk Drive (HDD) specifications.
Table B-20 22TB HDD Power Requirements
Condition +5 VDC (+/-5%) +12 VDC (+/-5%)
Motor start (Surge current 20 sec) Amp.
peak
0.94 A 2.00 A
Idle power (Average) 0.41 A 0.33 A
Appendix B
22TB Hard Disk Drive Specification
B-12
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