https://lenovopress.com/lp0651-thinksystem-raid-530-series-internal-raid-adapters
The ThinkSystem RAID 530 family are entry-level 12 Gb SAS/SATA internal RAID adapters that offer a cost-effective RAID solution for small to medium business customers. These cacheless adapters support RAID levels 0/1/10/5/50, and include an extensive list of RAS and management features.
The family is comprised of two adapter types:
The ThinkSystem RAID 530-8i is shown in the following figure.
Figure 1. ThinkSystem RAID 530-8i PCIe 12Gb Adapter
Along with an extensive list of enterprise RAID capabilities, the RAID 530 Series adapters offer advanced drive diagnostic technologies. In the event of a physical drive failure, the drive is placed in a shielded state and the controller starts drive diagnostics to determine if the drive is indeed failed or can be restored. This saves time, money and server downtime associated with transient drive failures and unnecessary drive replacement.
The following table provides the ordering part numbers for the adapters.
The following figure shows the ThinkSystem SD530 HW RAID adapter.
Figure 2. ThinkSystem SD530 HW RAID adapter
The ThinkSystem RAID 530 Series internal RAID adapters have the following specifications:
Note: CacheCade is not supported by these adapters
The following table compares the specifications of the RAID 530 internal adapters.
† The 530-4i adapter for use in the SN550 blade server only supports RAID 0 and RAID 1 because the server has only two drives. The 530-4i adpater for use in the SN850 blade server only supports RAID 0, 1, 5 and 10 because the server has only four drives.