#Ubuntu raid monitor how to
#Ubuntu raid monitor install
#Ubuntu raid monitor software

We now need to create a MultiDisk device for each partition set created in the previous steps. The partition manager will ask if it can make changes to the partition tables answer ‘yes’.

#Ubuntu raid monitor software

Once the partitions have been created move to the top of the Partition Disks menu and choose to Configure Software RAID. Once you’re done, the partition table should look something like this: Also set the bootable flag to On for the two root partitions. Repeat this process on the second disk so that both have an identical partition table. This applies for all partitions including the swap area. Create your partitions as per usual however, rather than setting the type to the default EXT3 file system, set them to Physical Volume For RAID. Select the first disk and create an empty partition table on the disk. At this point, you need to choose to manually edit the partition table. Here, I’m using 21.5GB disks split up in to the following partitions:įirst boot in to the Ubuntu installation program and continue until the Partition Disks screen. It seems some people prefer not to RAID swap space I have chosen to as I notice very little swap usage on my servers and would like to have the disks fully mirrored.

#Ubuntu raid monitor how to

I will also describe how to check the status of the array.

#Ubuntu raid monitor install

In this example, I’m going to install Ubuntu 6.06 LTS Server and create four partitions in a RAID 1 array. While the prospect of configuring software RAID can seem a little daunting to the first timer, it’s actually a very simple process. The tests were by no means scientific but they gave me enough confidence in SoftRAID’s performance to continue. I ran the tests on identical servers, one without RAID and one with SoftRAID. I was expecting to see a slight decrease in IO performance but was surprised to see quite a large jump. After building a software RAID 1 array and installing the Linux OS, I tested IO using ‘ bonnie++‘. After Googling for comparisons between software and hardware RAID, I was unsure whether using software RAID would degrade performance significantly. Outside of a RAID, the disks will experience the same environmental conditions, so not wanting to risk yet another rebuild, I decided to look at using software RAID. I think this applies more directly to disks in a RAID configuration as they will have experienced the same IO usage. I’ve often heard that once a disk has gone bad, it’s not unusual for other disks in the same enclosure to follow. Luckily, important data and configuration files were safely backed up, but it’s still rather annoying to have to rebuild the box from bare metal again.The faulty disk was replaced under warranty and I was good to go. The cheap, high capacity SATA disks were not in a RAID-1 mirror because the server’s FakeRAID did not support the flavour of Linux in use. I recently experienced a disk failure on a HP D元20 G3 server. Luckily, important data and configuration files were safely backed up, but it’s still rather annoying to have to. Thanks for reading.Įnter your email address to subscribe to this blog and receive notifications of new posts by email.Software RAID for Ubuntu LTS: Better to be safe than sorry Let me know if you know a better way of doing this. usr/bin/mailx -s “$email_subject” “$email_recipient” < $log_filename Hpacucli ctrl all show config > $log_filenameĮmail_subject=”Harddrive Failed On $hostname” If hpacucli ctrl all show config | grep -q “Failed” thenĮcho -e “Harddrive Check Run: `date`” > $log_filenameĮcho -e “ Using Command: hpacucli ctrl all show config” > $log_filename Log_filename=”/root/harddrive_check/log/$date.log”

# Email Current datetime in YYYY-MM-DD_HH-MM-SS The indentation seems to have got lost but you should be able to recreate it. When configuring Postfix, I selected “Internet Site” and entered the hostname of the server. It will also install Postfix (if this isn’t already setup). This is a virtual package on Ubuntu and I tend to install bsd-mailx. To send an email from command line you will also need mailx. I assume that you have already installed the HP Proliant Support Pack perhaps using these instructions. I am sure that there is a good way of setting this up with Nagios or SMNP – however, I thought I would write a little bash script which emails me if any of the hard drives in the raid array fail. I wanted to monitor our HP server raid array on Ubuntu 12.04.