Download Megacli Ubuntu

We can see configurations in megacli like Virtual Drive with RAID 0 over one physical drive, we have this settings because physical drives attached to raid controller, and for representing the device to the system we must set it in megacli.

I think the Nagios plugin check_raid speaks megacli. You could use it standalone to write your own script. Like all Nagios plugins, it gives you an exit code of 1 if it thinks something is wrong. A cron entry like

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Now you need something that can get the new firmware onto the controller. The controller chip was made my a company called LSI that alledgedly has gone out of business. But you can still get their firmware upgrade utility called megacli. Here's how to install it:

In order to communicate with the LSI card you will need the MegaCLI orMegaCLI64 (64bit) program. The install should be quite easy, but LSI make usjump through a few hoops. This is what we found: Go to the LSI Downloads page: LSI Downloads Search by keyword "megacli Click on "Management Software and Tools" Download the MegaCLI zip file. You will see the same file is for DOS, Windows, Linux and FreeBSD. Unzip the file In the Linux directory there is an RPM. If you are using Redhat you can install it. For Ubuntu got the next step. For Ubuntu run "rpm2cpio MegaCli-*.rpm | cpio -idmv" to expand the directory structure. You may need to "apt-get install rpm2cpio" . For FreeBSD unzip the file in the FreeBSD directory.On our Ubuntu Linux 64bit and FreeBSD 64bit servers we simply copiedMegaCli64 (64bit) to /usr/local/sbin/ . You can put the binary anywhere youwant, but we choose /usr/local/sbin/ because it is in root's path. Make sure tosecure the binary. Make the owner root and chmod the binary to 700 (chown root/usr/local/sbin/MegaCli64; chmod 700 /usr/local/sbin/MegaCli64). The install isnow done. We would like to see LSI make a Ubuntu PPA or FreeBSD ports entrysometime in the future, but this setup was not too bad.

The MegaRAID is the most common card on Dell Servers manufactured by Broadcom. Normal disk management software cannot get information of disks in raid mode. To view the raid information, we will need to use the megacli tool.

Seit 2013 bietet LSI das neue StorCLI als Nachfolger des MegaCLI. Sie knnen mit dem StorCLI neben der neuen Funktionalitt auch die vormalige MegaCLI Syntax verwenden (z.B. megacli -AdpAllInfo -aAll). Weitere Informationen zum StorCLI finden Sie im Wiki Artikel StorCLI.

LSI provide megacli, a proprietary management command line utility. Debian repository containing all packages to install proprietary and opensource tools for you any HW RAID card can be found here.

megacli is a proprietary tool by LSI which can perform both reporting and management for MegaRAID SAS cards. However it's really hard to use because it's use tones of command line parameters and there's no documentation.

The packages comes with a python wrapper around megacli and an initscript that periodic run this wrapper to check status. It keeps a file with latest status and thus is able to detect RAID status changes and/or brokeness. It will log a line to syslog when something failed and will send you a mail. Until arrays are healthy again a reminder will be sent each 2 hours.

megaclisas-status must root privileges to run command. So, go to /etc/sudoers.d/ directory and create file monitoring with this contain:

Select an unconfigured good drive from the "Drives" menu and click on Properties. Here, you can configure the drive either as a dedicated hot spare for an array or as a global hot spare for all arrays. You can also do this using the megacli tool

If the drive is good, it can now replace the missing drive. To do this, you need to specify the array and the position which are going to be replaced. You can get these numbers, for example, from megacli -CfgDsply -a0.If a drive is missing in an array, the entry Physical Disk: will show up, but no further information will be displayed. In the example, the fourth drive of the first array Array0 is now exchanged with the drive in Enclosure 245 Slot 3 ("PhysDrv[245:3]"):

This means I can not use smartctl to correlate which disk is sda, sdb, ..., sdl. But it is possible to use "megacli -LdPdInfo -a0" because one of that commands output lines are "Virtual Drive: 11 (Target Id: 11)" which matches the lsscsi output "[0:2:11:0] disk SMC SMC2108 2.12 /dev/sdl". Another megacli output line is "Device Id: 14" which corresponds to the ,14 number above. The serial number from smartctl ..blabla... ,14 matches with the serial number from both "megacli -LdPdInfo -a0" and "megacli -pdInfo -PhysDrv[$encdeviceid:$slotnr] -a$controllernr".