Data rescue companies have been rescuing information from spinning disks decades ago, and they are concerned that the advent of flash and solid-state drives (SSDs) may deter them from exiting them. Instead, it brings new challenge.
Mike Cobb, Drivesaver Engineering Director, said that accessing data from both flash and SSD has made every data rescue a custom project, and he has been with the company for nearly 24 years, and is becoming a maker of IDE parallel devices as cheaper and more expensive than SCSI Most recently, he has been working on 3.5 "hard disk drives (HDDs)." There are not many changes until more and more companies use SATA. "
Cobb said the hard drive market is now dominated by two companies, Seagate and Western Digital (WD), which have exploded in the SSD space, with companies coming and going and Intel, Samsung and Micron dominate as the market consolidates.
Cobb said: 'The flash was really crazy just a few years ago.' Controller, encryption, and interface are both data rescue challenges.
Cobb said, 'Each SSD in the same series can make a big difference.'
Cobb said the firmware plays an important role in the rescue of the hard disk, in the SSD is no exception.
That's the business foundation for DeepSpar Data Recovery in Ottawa, Canada, but instead of focusing on the data rescue business, the company is working with the industry's leading data rescue company to provide them with the new tools they need to keep up with the evolution of storage media. Serge Shirobokov, director, said the industry's main data rescue company is just beginning to focus on the NVMe SSD market until most of the data-rescue-enabled SSDs were HDI PCIe hard drives built into MacBook Air laptops until last year.
DeepSpar recently released a tool that will help recover data from a failed NVMe SSD, and the company believes that completely different controls are required to salvage information from a failed or damaged hard drive, one of which is to manually limit SSD usage PCIe channel count. If a particular PCIe channel fails, it can help restore data access. For example, an electronic problem occurs on channel 3, you can only use channel 1 for all communications in order to avoid problems. With the same Way to manually limit the PCIe link speed to a minimum setting will help improve the signal-to-noise ratio (SNR) and achieve stable communications with the SSD.
Another control feature is the ability to send various PCIe-level and protocol-level resets when reading a timeout or error, basically it allows the tool to restart the SSD, and the SSD does not respond while trying to read the corrupted flash drive When the rescue data can still continue.And similarly, if less than reset, this tool can also be re-repair of the SSD in order to continue the rescue process.
Shirobokov said that as long as a few flash units on SSDs fail, one computer may not be able to boot normally, and using DeepSpar's tools will be able to rescue data from unstable SSDs. Over time, unstable SSDs will Totally faulty, but this tool gives you a bigger chance of getting back some files before it is totally damaged.
There are many similarities and differences between hard disks and SSDs in terms of hard disk failure and data rescue techniques. Shirobokov said DeepSpar's new tools are built on their hard disk rescue imagers, but unlike rotating disks , SSD even in the upcoming failure will not be abnormal noise and other clues, but just can not boot.
Shirobokov said that hard disk and hard disk SSD damage may lead to data loss, but only a small part of the SSD damage to the disk can not be accessed, but the controller may also stop functioning.As DeepSpar's NVMe SSD rescue tool probability of success and recovery How time? Shirobokov said it is still too early, but is expected to provide some statistics next year.
Cobb said the price of NVMe SSDs has become more popular as consumers become more and more popular, and although the interface will aid in data rescue, different parts of each manufacturer are on board. "Therefore, Opportunities for successful data rescue on SSDs will be higher, but recoveries will be extended.
SSDs change the cause of data loss, and backup to the cloud has changed the dynamics of data rescue. It is no longer a floppy disk and a hard disk but a cell phone and a USB disk. Although mission-critical information is more likely to be copied to a secondary storage array Or in the cloud, but it does not seem to be sufficient for data backup alone, so he stressed there is still opportunity for the data rescue business to make it even more exciting and smarter.
Compile: Susan Hong