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Traditional hard drives consisting of spinning magnetic media platters arebecoming things of the past as with the emergence of the latest digitaltechnologies and electronic equipment, the demand for faster, lighter, and morereliable alternate storage solutions is imperative. To attain theserequirements, flash storage technologies like Solid State Drive (SSD) hasovertaken traditional hard disk drives. In a forensic analysis of flash storagedevices, forensic investigators are facing severe challenges for the reasonthat the sovereign behavior of solid-state storage media does not lookfavorable compared to traditional storage media devices. Wear Leveling, afundamental mechanism in Solid State Drive (SSD), plays a severe challenge thatmost often destroys forensic evidence in many cases. It makes it complicatedfor forensic investigators to recover the necessary evidence. Persistence ofdeleted data in flash storage media depends on various factors like the GarbageCollection process, TRIM command, flash media type, manufacturer, capacity,file system, type of file saved, and the Operating System, etc. In view ofthis, extensive experiments conducted to identify the probability of datarecovery and carving. Analyzed effects of Wear Leveling and Garbage Collectionprocesses in Solid State Drive (SSD) of different manufacturers, having thesame storage capacities and with a different type of files utilized. Inconclusion, experimental findings established the fact that Wear Leveling insolid-state media can obfuscate digital evidence, and a conventional assumptionregarding the behavior of storage media is no more valid. Moreover, datapersistency also depends on the manufacturers, time-lapse of forensic analysisafter data deletion, type of files, and size of files stored in Solid StateDrives (SSD).

SSD Forensic: Evidence Generation And Forensic Research On Solid State Drives Using Trim Analysis