Internal Storage - Lenovo N4610 Product Manual

The following rules apply when the memory configuration is selected:
The storage server supports RDIMMs only.
The maximum quantity of RDIMMs that can be installed in the storage server depends on the number
of processors.
All RDIMMs in the storage server operate at the same 1600 MHz speed, which is the maximum
memory speed that is supported by the Intel Xeon E5-2603 v3 processor.
The following memory protection technologies are supported:
ECC
Lockstep
Memory mirroring
Patrol scrubbing
Demand scrubbing
If lockstep or memory mirroring is used, RDIMMs must be installed in pairs (a minimum of one pair per each
processor), and both RDIMMs in a pair must be identical in type and size. Lockstep and memory mirroring
modes are mutually exclusive. Only one operational memory mode can be enabled on a storage server, and
it is a system-wide setting.
The following table lists available memory options for the N4610.
Table 5. Memory options
Description
Lenovo ThinkServer 4GB DDR4-2133MHz (1Rx8) RDIMM
Lenovo ThinkServer 8GB DDR4-2133MHz (1Rx4) RDIMM
* The maximum quantity shown is with one processor / two processors.

Internal storage

The N4610 storage server supports up to 12x 3.5-inch SAS or SATA hot-swap drives (HDDs or SSDs) on the
front and two 2.5-inch SATA hot-swap drives on the rear. For relationship and TopSeller models of the
N4610, the rear drives are configured in a RAID 1 array, which contains Windows Storage Server 2012 R2
preload.
Both front and rear drives are connected to the Lenovo ThinkServer RAID 720ix AnyRAID Adapter with
Expander that comes standard with the N4610. The RAID 720ix controller has the following specifications:
Eight internal 12 Gbps SAS/SATA ports (support for 12, 6, or 3 Gbps SAS speeds and 6 or 3 Gbps
SATA speeds)
Up to 12 Gbps throughput per port
Supports connections to 12x 3.5-inch SAS and SATA HDDs and SSDs on the front and 2x 2.5-inch
SATA HDDs or SSDs on the rear with the integrated SAS Expander
Supports RAID 0, 1, 10, 5, 50, 6, and 60
Supports optional 1 GB non-backed read-only cache upgrade or 1 GB, 2 GB, or 4 GB flash-backed
cache upgrades (1 GB non-backed read-only cache comes standard with the relationship and
TopSeller models that are listed in this product guide)
Supports FastPath and CacheCade Pro 2.0 when a flash backup upgrade is installed
PCIe 3.0 x8 host interface
Based on the LSI SAS3108 12 Gbps ROC controller
Lenovo Storage N4610
Part number Maximum
supported*
4X70F28588 12 / 24
4X70F28589 12 / 24
13