PCIe 3.0 x8 host interface 12 Gbps SAS/SATA RAID controllers, based on the Broadcom MegaRAID 9440 adapter family Cacheless (not upgradeable) Connectivity for up to 4 or 8 or 16 internal SAS or SATA drives, depending on the adapter selected Support for intermixing SAS and SATA HDDs and SSDs. Mixing SAS and SATA drives in the same array is not supported. Mixing of HDDs and SSDs in the same array is not supported. Support for intermixing of 24 Gb/s, 12 Gb/s, and 6 Gb/s drives; 24 Gb/s drives operate at 12 Gb/s Support for RAID 0, 1, 10, 5, and 50 standard, with these exceptions: The RAID 530-16i adapter only supports RAID 0, 1 and 10 The RAID 530-4i supports only RAID 0, 1 in the SN550 and RAID 0, 1, 10, 5 in the SN850 because those blade servers only support two and four drives respectively Support for JBOD (non-RAID) drive state Support for up to 63 physical drives with SAS expander (where supported) Support for up to 32 virtual drives View specifications on Lenovo Press
