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DL380-G6 - Expanding RAID 1 array

Occasional Visitor

DL380-G6 - Expanding RAID 1 array

I have a G6 server with a mirrored pair of 73GB 15k rpm drives for the Server 2008 R2 system/boot volume. I have 4 more 146GB drives setup in a RAID 5 for storing programs and data.

Everything is working fiine, but I now realize I should have spec'd larger drives for the OS. With active directory and SQL server installed, I only have about 15 GB of head room left on the C: drive. I'm worried that log files and other system data will eventually fill up the drive. I tried moving the 12GB swap file to the RAID 5 array but found out that Server 2008 R2 does not allow you to do this (it insists on having a swap file on the boot volume).

I want to replace the 73GB drives in the RAID 1 with larger drives. What is the most seamless way to do this? My first thought was to pull out one of the 73GB drives, replace it with a 146 and let the Smart Array controller replace the data on the new drive. Once that was complete, I could pull out the other 73, replace it too with a 146 and again allow the controller to copy over the data. Shouldn't this work? Or is there a better way?

Thanks for any suggestions!
Respected Contributor

Re: DL380-G6 - Expanding RAID 1 array

Replacing the 73GB disks one at the time is a good start (make sure it rebuilds). Next you extend the array using the array configuration utility and after that you extend the c: partition using diskpart.
No downtime required.

btw. You should be able to create a second swap file and leave only a small swap file on the c: drive.
Also SQL logging can consume a lot of diskspace but the location of he logfiles can be changed.
Webserver? you might want to look into the iis log files, they can get big.
Occasional Visitor

Re: DL380-G6 - Expanding RAID 1 array

Sounds like a plan. If I'm going to upgrade the drives, maybe I should skip the 146s and go for 300s. That way if I ever install IIS or whatever I won't have to worry about it.

Thanks for your help.