Lenovo ThinkServer RD550 - Page 14

The following table summarizes features of supported storage controllers.
Table 8. Storage controller features and specifications summary
Feature RAID 110i
RAID 510i
AnyRAID
RAID 520i
PCIe
RAID 720i
PCIe
RAID 720i
AnyRAID
RAID 720ix
AnyRAID
Part number None 4XB0F28691 4XC0G88850 4XC0G88849 4XC0G88838 4XC0G88839
Form factor Onboard AnyRAID Low profile Low profile AnyRAID AnyRAID
Controller chip Not
applicable
LSI SAS2008 LSI SAS3008 LSI SAS3108 LSI SAS3108 LSI SAS3108
Host interface Not
applicable
PCIe 2.0 x8 PCIe 3.0 x8 PCIe 3.0 x8 PCIe 3.0 x8 PCIe 3.0 x8
Port interface 6 Gbps SATA 6 Gbps SAS 12 Gbps SAS 12 Gbps SAS 12 Gbps SAS 12 Gbps SAS
Number of
internal ports
8 8 8 8 8 8
Internal port
connectors
2x SATA x4 Backplane
connector
2x Mini-SAS
HD x4
(SFF-8643)
2x Mini-SAS
HD x4
(SFF-8643)
Backplane
connector
Backplane
connector
Drive interface SATA SAS, SATA SAS, SATA SAS, SATA SAS, SATA SAS, SATA
Drive type HDD, SSD HDD, SSD HDD, SSD HDD, SSD HDD, SSD HDD, SSD
Drive form factor SFF, LFF,
M.2
SFF, LFF, M.2 SFF, LFF SFF, LFF SFF, LFF, M.2 SFF, M.2
Number of drives 8* 8 8 8 8 26**
RAID levels 0/1/10;
Optional 5
(4XB0F28690)
0/1/10;
Optional 5/50
(4XB0F28692)
0/1/10;
Optional 5/50
(4XC0G88841)
0/1/10/5/50;
Optional 6/60 with any cache upgrade
JBOD mode Yes Yes Yes Yes (without cache) Yes***
Cache None None None 1 GB non-backed (4XB0F28695)****
1 GB flash-backed (4XB0F28696)****
2 GB flash-backed (4XB0F28697)****
4 GB flash-backed (4XB0F28698)****
FastPath No No No Yes (with flash-backed cache)
CacheCade Pro
2.0
No No No Yes (with flash-backed cache)
* Up to 6 drives can be configured in a RAID array, and the remaining two drives operate in JBOD mode.
** Includes SAS Expander.
*** JBOD mode is supported only with the non-backed cache.
**** A cache upgrade is required for the 720ix AnyRAID adapter operations, and it must be purchased together with the
controller.
Important:
A cache upgrade is required for the 720ix AnyRAID adapter operations, and it must be purchased
together with the controller.
RAID 110i is not supported by virtualization hypervisors, including VMware vSphere (ESXi), Linux
KVM, Xen, and Microsoft Hyper-V.
Lenovo ThinkServer RD550 (E5-2600 v4) 14