Q: I have a failed hard drive, but I do not know the model and serial. How do I obtain this information?
A: If the the component is still visible to your operating system and hard drive controller, you can utilize a number of graphical and command line utilities from the operating system to identify the disks from their firmware details.
First, determine what type of hard drive controller you have. If your drives are attached to a motherboard SAS or SATA controller, or if you have a LSI HBA, you can interface with the drives directly. If you have a LSI RAID controller, you will need to use LSI's management utilities to bypass the virtual drive layer.
Motherboard or SAS HBA
- hdparm -I /dev/sdX | grep 'Model\|Serial'
- smartctl -a /dev/sdX | grep 'Device Model\|Serial'
- MegaCli -PDinfo -PhysDrv[<enclosure id>:<slot id>] -aN | grep 'Inquiry Data'
- storcli /cx/ex/sx show all | grep 'Model\|Serial'
- In MegaRAID Storage Manger, click on the Physical tab, then click on the drive in the left pane. The right pane will then display drive info.
If the drive is not shown to your operating system, you can obtain the model and serial number from the top plate on the drive.
Example Seagate drive:
Example Western Digital drive:
Drive failure behavior
Q: What is the default behavior when a drive fails? A: The default settings for a MegaRAID controller will enforce an automatic rebuild policy, and usually an automatic copyback as well. The automatic rebuild, in the presence of commissioned hot ...
Over-provisioning sets a percentage of the usable space on a hard drive to be locked away in the Host Protected Area (HPA) of the drive's firmware, ensuring that the disk never hits 100% capacity utilization, for performance and endurance ...
Frequently Asked Questions: Drive Failures
Frequently Asked Questions: Drive Failures Q: My system is reporting a drive failure. How do I obtain a replacement? A: If contacting Support for a drive replacement, you will need to have the following information ready: SM Serial number This ...
Fan alerts in MegaRAID Storage Manager
Q: My RAID controller is reporting fan failures, but the system appears to be functioning just fine. Why is this happening? A: The RAID controller is reading those statuses from the backplane. This is normal behavior if you have recently installed a ...
RAM models and serials
Q: I have a failed DIMM, but I do not know the model and serial. How do I obtain this information? A: This information is written into DMI into the motherboard. To access it, simply use dmidecode, available on most UNIX and Linux operating systems by ...