Questions about Intel Rapid Storage Technology

[jt3601]

In an environment where 40~50MB 0.5 seconds are stored 24 hours a day, freezing occurred while using Mirror RAID with RAID KIT
When checking SSD, BAD SECTOR was confirmed on both SSDs
Since the BAD SECTOR location is the same, it is suspected to be a logical BAD SECTOR
When rebuilding Mirror RAID with Intel Rapid Storage Technology on the two SSDs in question, BAD SECTOR disappeared
Since the two SSDs with the same data were used, it did not matter which data was maintained, and the rebuild was performed by maintaining the data of one SSD

1. Does Intel Rapid Storage Technology have a step to correct, fix, or normalize the SSD if there is a problem during the rebuild process?
2. When rebuilding from Master -> Slave, does it initialize the stored data of Slave during the initialization process, and does it initialize other parts of the SSD as well?

3. How is initialization done during the initialization phase?

[AlfredoS_Intel]

Hi Jt3601,

Thank you for posting in Intel Communities.

The behavior that you noticed really requires keen senses and observation. The same can be said on the compelling questions that you raised.

Due to the complexity of your questions, please allow us some time to collate information, so we can provide you with the best answers.

It would really help us also if we can get more information about your system. Please download and run our Intel® System Support Utility from this page. To run it, please press "Scan". After the scan is finished, click next and there will be a save button, giving you an option to save the logs to a text file, please do so and attach the file on your reply. You can refer to How to get the Intel® System Support Utility Logs on Windows* for instructions.

We will wait for your response.

Best Regards,

Alfred S

Intel Customer Support Technician 

[jt3601]

Thank you for your reply.
I will share the file you requested.
However, there are more than 6 SSDs that have bad sectors, and we have tested 6 SSDs with the system.
Therefore, the remaining logs in SSU may cause confusion during analysis.

I will wait for your reply.
Thank you.

[AlfredoS_Intel]

Hi Jt3601,

Thank you providing those information.

Please allow us some time to check on this. 

We will get back to you as soon as we have the most accurate answers to your inquiry.

Best Regards,

Alfred S

Intel Customer Support Technician

[AlfredoS_Intel]

Hi jt3601,

Intel Rapid Storage Technology (RST) is designed to enhance the performance and reliability of systems with SATA disks. When it comes to RAID rebuilds, Intel RST can manage the process but does not explicitly correct or fix bad sectors on SSDs. The technology relies on the redundancy of RAID configurations to rebuild the data from the remaining healthy disks in the array.

1. Intel RST does not have a specific step to correct bad sectors during the rebuild process. It will attempt to rebuild the RAID array using the remaining healthy sectors and drives. If bad sectors are logical and not physical, they may not appear after a rebuild because the data is reconstructed from the remaining drives in the array

2. During a rebuild from Master to Slave, Intel RST does not initialize the stored data of the Slave. The rebuild process involves copying data from the Master to the Slave to restore redundancy. However, if the entire RAID array is being re-initialized, all data on the drives would typically be erased as part of the initialization process

3. The initialization of a RAID array typically involves setting up the RAID configuration and then allowing the RAID controller to format the drives, creating the RAID structure. This process will erase all existing data on the drives and prepare them for use within the new RAID array.

In cases where multiple SSDs have bad sectors, it's important to determine whether these are physical or logical bad sectors. Physical bad sectors cannot be repaired and indicate that the SSD may need to be replaced. Logical bad sectors, on the other hand, may sometimes be resolved through software or a format of the drive. If you have multiple SSDs with bad sectors, it's crucial to back up any important data immediately and consider replacing the drives to maintain the integrity and reliability of your RAID array. 

You may refer to the following information: 

• How to Rebuild the RAID Array Using Intel® Rapid Storage Technology (Intel® RST) from the BIOS
• Degraded RAID Volume Won't Rebuild After Failed Hard Drive Is Replaced
• How to Rebuild a degraded RAID
• How to Rebuild the RAID1 Volume
• Information on Intel® Rapid Recover Technology
• Community Forum Title: Intel RST upgading to SSD's

Best Regards,

Alfred S

Intel® Customer Support Technician

[jt3601]

Thank you Alfred S.

Your answer was very helpful.

Have a nice day.

[AlfredoS_Intel]

Hi Jt3601,

Thank you for your update.

It is a great joy to know that you have already obtained the information that you need.

If you would like to give us an update or if you have further questions, please submit a new question as this thread will no longer be monitored.

Thank you for contacting Intel®, and have a great year.

Best Regards,

Alfred S

Intel Customer Support Technician