First, many people think SSDs are free from data corruption. They're misinformed. SSDs are just as likely as HDDs to suffer from data corruption. However, the process in which it occurs in SSDs is different. HDDs can suffer from a whole host of magnetic anomalies that can cause corruption, while SSD's suffer from electron leakage. Over time, a flash memory chip's floating gates (transistors in the SSD's cells capable of holding an electrical charge) can leak electrons. This may cause the cell's state to change from 0 to 1 or vice versa and results in corruption.
Second, there is a perception that SSDs do not require battery backup because they are nonvolatile storage. Again, that is an error. Yes, the storage is nonvolatile; however, recent testing has shown that when unexpected power loss occurs with SSDs, there is a high probability of corruption. All SSD storage should be tested for unexpected power loss and, if corruption occurs during testing, use battery backup so that they can be brought down in an orderly fashion.
Dig Deeper on Solid-state storage
Related Q&A from Marc Staimer
Network File System and Common Internet File System/Server Message Block were designed to work with any operating system, but NFS remains dominant in... Continue Reading
Object storage has unique features, including erasure coding and multi-copy mirroring, which may make it better suited to data protection than more ... Continue Reading
Why would you attach NAND flash storage directly to the memory channel? Isn't RAM much faster than NAND? Marc Staimer discusses this and more in this... Continue Reading
Have a question for an expert?
Please add a title for your question
Get answers from a TechTarget expert on whatever's puzzling you.