It’s quite new and thus, may be missing in some not-up-to-date distributions. Beware of data loss! The script can be called with –nagios parameter. We can see that Physical Disk: It will log a ligne to syslog when something failed and will send you a mail.
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The first thing you’ll have to do is to list IDs of all your physical disks:.
Write cache should be enabled ONLY if you have a battery pack on megaraod controller. Even Ubuntu is listed in the wikipage, LSI card upgrade is not supported. The read policies indicate whether or not the controller should read sequential sectors of the logical drive when seeking data. However LSI redhzt megaclia proprietary management command line utility which is rather hard to use. It will force a single line output and will return exit code 0 if all good, or 2 if at least one thing is wrong.
I noticed that strange behavior on an IBM controller. However, please that most of old distributions won’t have this driver. We can see that Physical Disk: Download in other formats: A server with two controllers old script version output, sorry got no such hardware to get a newer example: A complete documentation is attached as PDF here: With this option, readahead will only be enabled if the controller receive several access to sequencial sectors.
The packages comes with a python wrapper around megasasctl and an initscript that periodic run this wrapper to check status.
It is available in the packages repository too. Linux kernel drivers 3.
Assuming your new unassigned drive is identified as! Management and reporting tools 3. The controller will now recognise the disk as being a “foreign” one.
LSIMegaRAIDSAS – HWraid
Then you can expect such monitoring facilities centreon on-top centreon-engine in this picture:. Use regular readahead instead: Unplugging and pluging back a disk from an array doesn’t make the controller rebuild the array with that disk.
The cache policies are as follows:. It’s quite new and thus, may be missing in some not-up-to-date distributions. The packages comes with a rechat wrapper around megacli rechat an initscript that periodic run this wrapper to check status. Now we’re going to enable write cache.
LSI MegaRAID SAS
You can write your own script around megacli to check your adapter status health periodically. The disk drive identified as!
It seems ADRA is deprecated, current megacli binary doesn’t offer this option anymore. The script can be called with –nagios parameter.
Beware of data loss! 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. However it’s really hard to use because it’s use tones of command line parameters and there’s no documentation.
It seems to work on old card but fails with the new one.
A second one with a RAID6 arrays of 7 drives with one offline the array has just been created so it’s under initialization too.