By using our site, you acknowledge that you have read and understand our Cookie Policy , Privacy Policy , and our Terms of Service. I just tried this, but I have IBM drives and for me it looks like there’s no correlation between the serial number that shows up in -pdlist and the serial number that shows up lshw. It can create n 1 to 40 logical drive s depending on numld parameter. Here’s an example output: Here’s an example output:.

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To check the whole array status ie: Dorian Gambin 61 1 1. Use the above commands to run patrol read in off-peak times.

man page megaraid section 8

The tool itself is available at: In lshw it is bus info. Please read the MegaCli Manually array rebuild with an used disk before continuing here, so you understand what is going to be done now:. That feature has saved me from pulling the wrong drive out of the server. This seems bizarre, but it works across dozens of servers I’ve tested it on. For anyone stumbling on this question and using storcli successor of MegaCLIyou can map a virtual drive to the disk seen by the operating system with the following: If we use a non new disk, which has been part of an array in the past, it will contain metadata and the controller will not start to rebuild the array until we have cleaned that configuration, as a security precaution.


This works great, even at Centos 6, thanks! Home html info man. Download the MegaCLI zip file. Note that when in this state the controller requires manual intervention to boot and it will prompt for “preserved data cache present”. So we know that the disk Patrol read is a feature which tries to discover disk error before it is too late and data is lost.

Actually this slot number will be used to represent this physical ID drive in other commands.

Identifying Logical Drives

In this case we stop at SPAN 2 because the information for Physical Disk 0 in bold is missing compare it with the information it shows for Physical Disk 1.

Lets look at each cache policy LSI raid card use. Understand that you should only use caching if you have good UPS power to the system.

The device name will be in the logical name field. Battery is not being charged. Read cache is used when the system 40-od asked for some data and the raid card keeps the data in cache in case the system asks for the same data again.


Views Page Discussion View source History. Navigation Main page Recent changes Random page. I have also received independent confirmation that this works for others. No In the case above, jegaraid LD were listed, with detail info such as raid level, size, strip size, cache policy etc.

A logical drive cannot be created with a capacity less than MB. We can see here Primary raid level 1 and secondary 0. The parameter ld is the logical drive id. Seems like I might be stuck. There is an alternate tool called lsiutil that has been discontinued.

Figured I should share: The parameter pd is the physical drive id. Sat Aug 23