recently we have a server crash, so we decided to mount a RAID 1 in our server. so we asked to the hosting, they told us that was needed to reinstall all the system again. so we make it, and now i have the doubt if the RAID is really working.
how can i know this? we are running debian lenny 64 bits and the raid is supposed to be running by software.
Regards, Shadow.
Pull the hard drive out. Is the server still running? Then you're using RAID.
Do you run on bare metal or do you have a VM? If you run on a dedicated server, just run
cat /proc/mdstat
and you will see if you have a raid.
Inside a VM I don't think it is possible (you just get a software block device from the host in all cases, unless they give you a block device per physical disk). You can try with a benchmark and compare the results with known single disk and RAID data.
To check for hardware raid, you can use smartmontools. If you do have a raid, you will not get SMART data running
sudo smartctl -A /dev/sda
In addition to md there is the software RAID known as "fakeraid." Try running dmraid -r as root.
