Dell PowerEdge R930 4K Sector HDD FAQ - Page 6
Is there data integrity risk during sudden power off?
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9. Is there data integrity risk during sudden power off? If volatile write cache is disabled: • 512n and 4kn HDD, there is no data loss during sudden power off. • Enterprise 512e HDD with NVC and/or MBC/MC feature (see section 5) also does not have data integrity risk. • For 512e without NVC or MBC/MC (Client grade HDD), there is a risk of data integrity during sudden power loss. If volatile write cache is enabled, then sudden power loss will result in data cache loss regardless of the HDD format types. 6 4K Sector HDD FAQ | Dell Inc., 2014
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4K Sector HDD FAQ | Dell Inc., 2014
9.
Is there data integrity risk during sudden power off?
If volatile write cache is disabled:
•
512n and 4kn HDD, there is no data loss during sudden power off.
•
Enterprise 512e HDD with NVC and/or MBC/MC feature (see section 5) also does not have
data integrity risk.
•
For 512e without NVC or MBC/MC (Client grade HDD), there is a risk of data integrity
during sudden power loss.
If volatile write cache is enabled, then sudden power loss will result in data cache loss regardless
of the HDD format types.