Hi, thanks for your help here. This is a long post.
This is my first time for updating hardware in any server. I have only just started this job, and my boss asked me to add a new hard drive into our HP ProLiant ML370 G3 Intel Xeon 2.8GHz server (we want to transfer our MS Exchange data over, our existing HD is running out of space).
We currently have one SCSI 36.4GB Compaq Disk device installed. Our Adapter is Compaq 64-bit Dual Channel Wide Ultra 3 SCSI Adapter.
So, after reading the manuals, I then take a picture of the rack and post it on forums to ask for advice.
So, as you can see the rack is a hot-swap. The main priority of this upgrade is to not shut-down the server, the Server is feeding the factory, and the main offices.
I think I have purchased the wrong hard drive for the Server 76.4GB - eek. I said to my boss we do not need a drive of similar size (36.4GB) because we do not currently have a RAID Array set-up (we only have one HD) - so each disk would run independently
Additionally, the manual of the server states that if you only have a flashing activity light, and no "online" light - then "the drive is being accessed, and is not configured as part of an Array".
However, here comes the mistake, the image of the rack (above) was taken with the flash on - upon closing inspection of the hard drive, the activity light is "flashing" and the online light is "Active". So, according to the manual "This hard drive is configured as part of an Array".
*Can one hard drive be part of an Array? (I know you need 2 drives at the minimum for RAID 0/1).
If the answer to that is no; well then how come according to manual the current drive is part of an Array.
We have an SCSI adapter, but for this particular model server, I think I would need a Smart Array Controller. Again, if this is the case, then why does the manual state that this drive is part of an Array.
The problem here is, if I add this new drive to the Server;
a) Because of the different sizes, will this not degrade the performance of the first drive. (So would have to send the drive back, which makes me look incompetent b/c I took an image of the rack, and did not look closely at the "online" light).
b) I would have to reconfigure the existing RAID Array to include the new drive - which means a lot of research, having to come in on the weekend (getting keys of boss etc..) because to configure the RAID I would need time.
So, to my main point (I do have one!).
1)How can I tell if my Server has a RAID Array without shutting down and rebooting the Server?
2) Could you tell from the image of the rack (ie, one drive) that we do not have a RAID Array, and that it would be perfectly fine to add the second independent drive. If this is the case, then why does the manual say if you have one flashing activity light, and one constant online light - you have a RAID Array?
Any info, tips would be most welcomed. Thanks.
PS: Sorry for the long-winded post.