The SAS 6/iR supports a max disk size of 2TB in RAID mode (rumor has it that larger ones work in non-RAID mode), as does the PERC 6/i. The H200 and H700 are the first controllers to support larger than 2TB physical disks.   The H200 DOES support migration of VD's from a SAS 6/iR (the H700, apparently, does not), and is on the HCL for ESXi 4.0 and up. The PERC 6/i and H700 are not officially supported on the R210 either.
Today I replaced 2x 2TB HDDs in RAID 1 array to 3TB but the RAID BIOS seemed to only see 2TB. I tried searching for any information on the RAID card, but it is very little info. All I know is that it is either a SAS6iR or a JW063 card, both appear to be the same card. I could not find firmware updates or anything useful other then perhaps that it is a cheap card and that I should look for a PERC 6 card of some type.   I would rather do a firmware upgrade, but if I have to replace the card with something similar but better quality I am fine with that. Any suggestions as to what I should do?   Ps, this server is used in a ESXi VMware environment, so it will need to be compatible with that.
PowerEdge R210 SAS6iR RAID not surpassing 2TB.