ProLiant DL180 Gen9 Expand Raid 5

[JRendon]

I have 4 hdd in raid 5 I need to add one more in the raid,
but I do not have the option to expand.
 
Operating System Centos

regards.

[FrustratedAdam]

 I don't believe you can expand a RAID 5 because of how the stripes and parities are distrubuted. I would,

1. Backup data

2. Delete Array

3. Reconfigure with needed drives

4. Restore data 

Good Luck! 

-Adam 

[Jimmy Vance]

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@JRendon wrote:

I have 4 hdd in raid 5 I need to add one more in the raid,
but I do not have the option to expand.
 
Operating System Centos

regards.  

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What disk controller is in your system? Does it have a cache module?