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Adding Additional Drive Cage to HP ProLiant DL380p Gen8

Hi Guys,

I've to add a drive cage to a production HP ProLiant DL380p Gen8. I want to post this question as I've not done this on this server and would like to become aware of any pitfalls I should be watching for.

1. I will be replacing the existing optical drive with the new drive cage (SFF, additional 8 bay)
2. I have an additional RAID controller card P420
3. The Server already has a SFF bay and raid controller as primary storage right now
4. I have two SFF disks to install initially in Mirror

My questions
1. Will the server recognise two RAID controllers (are two needed?, I take it one card cannot control two cages?
2. Will the OS recognise two RAID controllers and present the new disk\logical partition to the OS on the other RAID controller (existing primary)
3. I take it upon boot up it will be easy to setup the logical drive on the new controller
4. This should require no changes on the existing drive cage\disks setup, and is independent of it?
5. Any videos on this particular task (I had a look on youtube with not much luck)

Thanks Guys, if there is anything else I need to watch out for let me know. I know the above questions are pretty low level but I prefer to be extra cautious. If somebody has done this before it would be great to get feedback.
1 Solution
1. yes, no problem having multiple Smart Array controllers in ProLiants, for TPC benchmarks HP fill every slot with a RAID controller.

2. Yes, no OS problems.

3. You may have to change the primary boot controller in BIOS but probably not as the embedded one on the motherboard is at a lower PCI address.

4. It's totally separate, so each controller has max 8 disks which limits you to 8 disks in an array, you cant have drives from each controller in one array.

4A, the SAS expander card is not supported in Gen8 models or you could have all 16 disks on the embedded controller on the motherboard. There is a 25 disk backplane with expander but I don't think HP sell it except as a spare part which probably doesn't have the fixings.

5. Some here although doesn't cover exactly what you want but it does show how to remove the DVD and remove/replace the original cage so it's close enough. http://h20464.www2.hp.com/resultsCSR.htm?prodSeriesId=5177957&MEID=CF42A2E7-1AF3-49B8-8CB9-76533C7441F6

BTW, HP cheat in those videos, since the only tool they give you is the torx key on the back of the server they should be showing how to do the job using that although then the videos would be 5 times as long because it's really fiddly to use. Hopefully you have a decent T15 driver.
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