The first one is already setup but we have just plugged a disk bays on the second card. If you need to reset your password, click here. Please visit this page to clear all LQ-related cookies. The disk drive identified as! Linux kernel drivers 3. The write policies specify whether the controller sends a write-request completion signal as soon as the data is in the cache or after it has been written to disk. For more advanced trainees it can be a desktop reference, and a collection of the base knowledge needed to proceed with system and network administration.
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If megasasctl doesn’t work for you, you will have to use the proprietary cli utility from LSI: It means it has detected some RAID informations on it, and thus, considers it as a disk being part of an array that may be imported into current controller configuration. For more advanced trainees it can be a desktop reference, and a collection of the base knowledge needed to proceed with system and network administration.
You can write your own script around megacli to check your adapter status health periodically. A server with two controllers old script version output, sorry got no such hardware to get a newer example: Proprietary tools creates the device node at startup. Write cache should be enabled ONLY if you have a battery pack on your controller.
Smartmontools with MegaRAID Controller – Thomas-Krenn-Wiki
All theses card can be used with stock Linux kernel which includes a working driver. A complete documentation is attached as PDF here: However LSI provide megaclia proprietary management command line utility which is rather hard to use.
Dell cards can be flashed using firmware-tools. Let’s check if we have one and if it’s working fine:. Download in other formats: The write policies specify whether the controller sends a write-request completion signal as soon as the data is in the cache or after it has been written to disk. Firstly thanks for your reply dyasny. Note that registered members see fewer ads, and ContentLink is completely disabled once you log in. Failed to init firmware [ Management and reporting tools 3. These settings do not affect the read-ahead policy.
[CentOS] LSI MegaRAID system status — SOLVED
Want to know if that peripheral is compatible megwraid Linux? Can you post the output from lspci -nn grep -i raid so that we can see what model of RAID it has.
I suspect i need these drivers https: Unplugging and pluging back a disk from an array doesn’t make the controller rebuild the array with that disk. Beware of data loss! Now we’re going to enable write cache. I have however solved the problem!
Full time Geek, part time moderator. Please note you need a recent version of smartmontools. It is available in the packages repository too. We can see that Physical Disk: Visit the following links: You can write your own script around megasasctl to check your adapter status health periodically.
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LSI MegaRAID SAS
Tags centos5raid Thread Tools. And, yes, I think the drive probably has to be part of an array to be seen properly – even if it’s a RAID 0 array of one drive. What I am basically asking is if anyone has ever configured such a controller on CentOS 5 and if so how did you manage?