Community
cancel
Showing results for 
Search instead for 
Did you mean: 
SamboNZ
Beginner
119 Views

Estimated Life Remaining 1% But Only 18TB written?

Hey guys,

The Intel Memory and Storage Tool shows the 'Estimated Life Remaining' for my Intel 535 SSD at 1%, yet the 'Host Writes' is only sitting at around 18TB according to IMAS and Crystal Disk Info.

THAT SAID, the 'Total NAND Writes' is ~160TB...

As far as I can ascertain, the TBW for this drive is 73TB (I can't find an official figure on Intel's site).

I assume that the latter figure is the real one to look at and the difference is 'Write Amplification'?

8x write amplification seems to be a lot, but then again it has spent all of it's 8 years of life as the system drive for a computer that is constantly in use for 12+hrs every day of the year and , so perhaps it's not that surprising. (That's at least 35,000 hours in operation for those of you playing at home!)

Anyway, I'm not sure whether to be offended that it's only lasted for 25% of it's expected lifespan or amazed that it lasted for 220%! On the other hand, regardless of anything else, hasn't missed a beat for 8 years straight so I guess I should be grateful either way!

The other question I have would be; is this a death sentence for the drive, or is it possible that it will continue to live a healthy and productive life well into its twilight years?

According to some torture tests I've seen, ordinary consumer SSDs can last WELL beyond their rated lifespan. That test featured an older Intel 335 which worked fine for 750TB of writes!

So maybe it's not the end after all?

Any insights from someone in the know would be much appreciated!

0 Kudos
5 Replies
JosafathB_Intel
Moderator
96 Views

Hello SamboNZ,

 

Thank you for contacting Intel® Memory and Storage support.

 

As we understand, you need assistance with your Intel® SSD 535 Series. If we infer correctly, we will appreciate it if you can review and provide us with the following information:

 

 

1- You can find more information regarding your SSD specifications and SSD reliability in the following link:

 

https://ark.intel.com/content/www/us/en/ark/products/86738/intel-ssd-535-series-120gb-2-5in-sata-6gb...

 

 

2-We advise you to check your SSD firmware to assure you are running the newest version. Based on the Firmware Versions for Intel® Solid State Drives and Intel® Optane™ Memory article (https://www.intel.com/content/www/us/en/support/articles/000017245/memory-and-storage.html)

The latest version of the firmware for your Intel® SSD 535 Series is the following: 

 

- Intel® SSD 535 Series M.2         RG11   

 

- Intel® SSD 535 Series 2.5           RG21

 

*Please take into consideration that if your SSD came pre-installed with your PC or is an OEM (original equipment manufacturer) meaning, that this SSD was customized by the OEM and has different firmware, you may not be able to update it with our tools. Consider that some of the features and specifications mentioned in ark.intel.com may not apply.

 

 

3- We advise you to extract the SMART logs, and if you are using an adapter, we would appreciate it if you connect your SSD to the port on your motherboard and try to extract the following logs by using the Intel® Memory and Storage Tool:

 

https://downloadcenter.intel.com/download/29337/Intel-Memory-and-Storage-Tool-CLI-Command-Line-Inter...

 

-1. SMART attributes: intelmas show -smart -intelssd “SSD_index”.

 

-2. The SSD information using show -all command from Intel MAS CLI: intelmas show -all -intelssd “SSD_index”.

 

Replace the “SSD_index” with the actual index number of your SSD. A complete User Guide is available below.

 

User Guide:

https://downloadmirror.intel.com/30059/eng/Intel_Memory_And_Storage_Tool_CLI_User%20Guide-Public-342...

 

* Please review the Video on Intel® SSD Firmware Update and Health Monitoring Using Intel® Memory and Storage Tool (Intel® MAS) article (https://www.intel.com/content/www/us/en/support/articles/000057393/memory-and-storage.html) For further instructions on how to use this tool.

 

We will follow up with you again the next Tuesday, the 16th of February 2021, if we do not receive an answer from you. Please let me know if you would like to schedule a different date for the follow-up.

 

We will be looking forward to your reply in case you need further assistance.

 

Best regards,

 

Josh B.

Intel® Customer Support Technician.

SamboNZ
Beginner
89 Views

Hi Josh,

The firmware version on my SSD is the latest (RG21)

I have attached the SMART log.

 

JosafathB_Intel
Moderator
79 Views

Hello SamboNZ,

 

Thank you for your reply and the information provided.

 

Based on the SMART logs, we can conclude the following:

 

1- Based on your SSD serial number, your drive is already out of the five years warranty.

 

2- We advise you to back up or make copies of your files and to replace this SSD as soon as possible to avoid future issues.

 

3- After calculating the NAND and the Host writes, we concluded that your drive is not suffering from high write amplification.

 

If you are still concern regarding the high write amplification, feel free to try the following tool:

 

https://downloadcenter.intel.com/download/26452/Write-Amp-Firmware-for-Intel-SSD-530-535-Series

 

Notes:

 

Before initiating the iRMFUU, read all the instructions below. The firmware update process is done entirely at your own risk.

 

Before attempting the firmware update, back up or make copies of your files. If the Intel® SSD firmware update process is interrupted, your Intel® SSD may not function properly.

 

On RedHat 7.1, the command “modprobe –sg” must be executed before running iRMFUU. Otherwise, the tool won’t detect/enumerate any drives.

 

If you purchased your Intel® SSD from an OEM, your firmware version may have a different naming. Contact your local OEM representative for the latest firmware revisions. The utility is only supported on Windows* operating systems.

 

This tool will change your Intel® SSD 535 Series drive to firmware version RG2V.

 

We will follow up with you again the next Tuesday, the 16th of February 2021, if we do not receive an answer from you. Please let me know if you would like to schedule a different date for the follow-up.

 

We will be looking forward to your reply in case you need further assistance.

 

Best regards,

 

Josh B.

Intel® Customer Support Technician.

SamboNZ
Beginner
70 Views

Hi Josh,

A couple of questions:

  1. What level of write amplification does Intel consider 'normal'?
  2. Which SMART attribute is considered as the 'TBW' endurance equivalent; 'Host Writes' or 'Total NAND Writes'?
JosafathB_Intel
Moderator
60 Views

Hello SamboNZ,

 

Thank you for your reply.

 

To answer your questions:

 

As mentioned in the article named My Intel SSD have high NAND writes (https://www.intel.com/content/www/us/en/support/articles/000027328/memory-and-storage/client-ssds.ht...)

 

Write amplification (WA) is an undesirable phenomenon associated with flash memory and solid-state drives (SSDs) where the actual amount of information physically written to the storage media is a multiple of the logical amount intended to be written.

 

This phenomenon has been observed on the Intel SSDs. The process and formulas that we use to calculate this factor are not part of the public information.

 

The Write Amplification Factor (WAF) depends on the workload and drive configuration. For 100% sequential write workloads, the Write Amplification Factor is roughly 1. However, for workloads that have substantial amounts of random writes, the Write Amplification Factor is higher than 1 because of defragmentation overhead.

 

The Total NAND Writes will be the best factor to check when calculating the amount of data written to the drive. During a determined amount of time.

 

As mentioned in our previous communication, our recommendation will be to replace this SSD as soon as possible to avoid future issues.

 

We will not close this thread, and you can still post and share your findings with the community. If you need assistance related to another Intel® product, please do not hesitate to contact us back by opening a new thread, and please submit a new question. We will no longer monitor this thread.

 

We hope fellow community members have the knowledge to jump in and help.

 

Best regards,

 

Josh B.

Intel® Customer Support Technician.