USB devices

Hosting sponsored by http: I made some wrappers around binaries from megactl package to create the node if it doesn’t exist yet. It’s the standard nagios expected return code. 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. Please note you need a recent version of smartmontools. 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. It will log a ligne to syslog when something failed and will send you a mail.

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Assuming your new unassigned drive is identified as!

All theses card can be used with stock Linux kernel which includes a working driver. These settings do not affect the read-ahead policy.

The read policies indicate whether or not the controller should read sequential sectors of the logical drive when seeking data. Beware of redhay loss! BIOS upgrade from a Linux system. The first one with a RAID1 array working fine. The first thing you’ll have to do is to list IDs of all your physical disks:.


However LSI provide megaclia proprietary management command line utility which is rather hard to use. A server with two controllers old script version output, sorry got no such hardware to get a newer example: Even Ubuntu is listed in the wikipage, LSI card upgrade is not supported. 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.


With this option, readahead will only be enabled if fedhat controller receive several access to sequencial sectors. Let’s check if we have one and if it’s working fine:.

If not, it won’t be used to avoid filling cache with randon useless data in case of randomly accessed sector. The script can be called with –nagios parameter. Now we’re going to enable write cache.

Please reddhat you need a recent version of smartmontools. We can see that Physical Disk: Here is what to do:.

The controller will now recognise the disk as being a “foreign” one. Powered by Trac 1. You can write your own script around megasasctl to check your adapter status health periodically. Unplugging and pluging back a disk from an array doesn’t make the controller rebuild the array with that disk.


However, please that most of old distributions won’t have this driver.


A complete documentation is attached as PDF here: Hosting sponsored by http: There is currently no known opensource tool for theses cards. It seems ADRA is deprecated, current megacli binary rrdhat offer this option anymore.

The cache policies are as follows:. The packages comes with a python wrapper around megasasctl and an initscript that periodic run this wrapper to check status.

If megasasctl doesn’t work for you, you will have to use the proprietary cli utility from LSI: However, I already did this for you. We’re going to enable an enhanced version of readahead: Download in other formats: