Storage configuration (Linux server)

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17 Aug 2010
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Hello all,

Firstly I have posted this under Servers and Enterprise Solutions and Storage Drives as I wasn't sure where the best place would be. If a DON feels one place is more suitable please move/delete it.

I've got a HP ProLiant MicroServer Athlon II Neo N36L 1.3GHz 1GB running debian linux. It's running as a data server that streams to all other devices in my household and it is also used for newgroup(usenet).

It's currently got the following storage:

2x 500GB Western Digital Caviar Black
1x 1TB Samsung HD103SJ Spinpoint F3

The storage was setup as the following:

2x 500GB Western Digital Caviar Black -- Running Raid 1(mdadm) mounted at "/data/disk1"
1x 1TB Samsung HD103SJ Spinpoint F3 -- Running nothing mounted at "/data/disk2"

Using the following above the speeds were fine at transferring etc

I needed to have ALL my storage in once place as one big data pool mounted at once location "/data"

So I went ahead and setup the following:

2x 500GB Western Digital Caviar Black -- Running Raid 1(mdadm) UNDER LVM
1x 1TB Samsung HD103SJ Spinpoint F3 -- Running nothing UNDER LVM

So the raid 1 drives and the solo drive was under the same LVM and could be mounted at one location "/data" but since I've set it up like this I've noticed its rather slower than how it was initially setup.

The two 500GB drives that are running under Raid 1(mdadm) is where all my main personal documents are so I need that to have some sort of security, I've also got rsync setup to automatically mount/backup/unmount that data to an external USB 500GB drive for extra security should something bad happen.

Would there be any other way of configuring my storage to meet my needs and wouldn't effect storage performance? I could buy more identical drives and just run it under one big Raid array so it could be mounted at one location but if I can help it, I don't want to go and buy more drives.

Any help is greatly appreciated!

Many thanks,
 
IMO better to use either mount --bind if possible or use symlinks to display all the data at once.
Reason being that if you put all 3 drives into an lvm and the 1tb dies you will have issues.
 
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