Table 16. SN850 RAID controllers with features
Feature
Onboard
RAID 530-4i
RAID 930-4i
Adapter type
Software RAID
RAID controller
RAID controller
Part number
None
7M17A03932
7M17A03933
Form factor
Integrated
Adapter
Adapter
Controller chip
Intel PCH (RSTe)
LSI SAS3404
LSI SAS3504
Host interface
Not applicable
PCIe 3.0x8
PCIe 3.0x8
Port interface
6 Gb SATA
12 Gb SAS
12 Gb SAS
Drive interface
SATA
SAS, SATA
SAS, SATA
Drive type
HDD, SSD
HDD, SED, SSD
HDD, SED, SSD
Hot-swap drives
Yes
Yes
Yes
Max devices
4
4
4
RAID levels
0, 1, 10, 5
0, 1, 10, 5
0, 1, 10, 5, 6
JBOD mode
Yes
Yes
Yes
Cache
No
No
2GB (Standard)
CacheVault cache protection
No
No
Yes (Flash)
Performance Accelerator (FastPath)
No
Yes
Yes
SED support
No
Yes
Yes
Both the 530-4i and 930-4i replace the onboard SATA controller in the server and support high-
performance RAID to the four internal 2.5-inch drive bays.
The following figure shows the ThinkSystem RAID 530-4i adapter for the SN850 blade server. Note that the
plastic frame in the lower right of the adapter is part of the mechanism that attaches the adapter to the
server; this adapter does not support a supercapacitor.
Figure 5. ThinkSystem RAID 530-4i
Lenovo ThinkSystem SN850 Server
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