OS/2, eCS & ArcaOS - Technical > Storage
NAS and OS/2?
Paul Smedley:
--- Quote from: Mark on January 31, 2015, 01:02:28 am ---I have heard stories that the RAID versions of NAS system require matching drives to work. So you could not use two 1T drives from two different manufacturers. And perhaps not even a mix of WD Caviar Blue & Green, etc. For those who have been using them, can you confirm or deny the stories I've been hearing?
It puts a damper on my enthusiasm to find out that if one of my raid drives go out, I may have a very rough time trying to find a matching replacement drive if there were such a requirement.
--- End quote ---
Every NAS I've seen runs linux, and use mdadm to create the array. You don't need identical drives.... http://ubuntuforums.org/showthread.php?t=408461 has some details.
ivan:
Mark, I can only speak from the experience of using D-Link NAS boxes but we have never found them requiring matched drives or even drives of the same capacity for use in a RAID array (make sure you know just why you want to use a RAID array and what type of array - RAID is not a backup system).
With the D-Link, if you use different size disks and RAID 1 you will get a RAID array the size of the smallest disk and a standard disk for the remainder of the space.
mwizard:
Paul/Ivan
Thanks very much for sharing your experience. In this case, I have an interest in a low power consuming NAS (gigabit & 2T useable storage) that would have RAID mirror so that if I lost a disk, I could replace the bad disk and be back up to speed without losing data. I have offline USB drives I can use for backups.
Would prefer one that doesn't require Win to setup since I don't own one of those machines. I've been thinking of FreeNAS but getting it into a low power consuming system didn't seem all that easy to me. I'm able to build my own systems, but I'm not an expert.
Thanks again.
Paul Smedley:
Hey Mark,
--- Quote from: Mark on February 03, 2015, 12:39:18 am ---Thanks very much for sharing your experience. In this case, I have an interest in a low power consuming NAS (gigabit & 2T useable storage) that would have RAID mirror so that if I lost a disk, I could replace the bad disk and be back up to speed without losing data. I have offline USB drives I can use for backups.
Would prefer one that doesn't require Win to setup since I don't own one of those machines. I've been thinking of FreeNAS but getting it into a low power consuming system didn't seem all that easy to me. I'm able to build my own systems, but I'm not an expert.
--- End quote ---
HP Microserver N40L or N54L are reasonably priced, and reasonably low power. I run Ubuntu Server on mine. Started with a N40L and upgraded last year to a N54L.
Cheers,
Paul
ivan:
Mark, you have two choices.
1) Buy a 2 or 4 bay NAS and disks and you are ready to go.
2) Build your own which requires getting the hardware and some way of putting it all together plus setting up the software.
Adding to what I said in choice 1. All of the NAS boxes I have seen and used have a web interface that is accessed via a browser - all the win based program does is find the IP of the unit and then access the web interface. The D-Link units we use to supplement our HP storage array have a gigabit network interface and are fully configurable. They also incorporate an FTP server and other services that we don't use. Some date from 2006 and have been running 24/7 since then. The one instance we had when a disk went down it was just a matter of pulling it and pushing in the replacement - the RAID 1 rebuilt itself in the background without any problem.
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