Lenovo System x3850 X6 Product Manual page 25

Table 13. Feature comparison
Feature
Adapter type
Part number
Form factor
Controller chip
Host interface
Port interface
Number of ports
Port connectors
Drive interface
Drive type
Hot-swap drives
Max devices
RAID levels
JBOD mode
Cache
CacheVault cache protection
Performance Accelerator
(FastPath)
SSD Caching (CacheCade Pro
2.0)
SED support (SafeStore)
For more information, see the list of Lenovo Press Product Guides in the RAID adapters category:
https://lenovopress.com/servers/options/raid
The NVMe PCIe SSD Extender Adapter is a PCIe adapter that simply routes the PCIe 3.0 x8 signal from
the slot in the Storage Book, splits the signal to two x4 links, and routes those via cables to the drive
backplane. The extender adapter is shown in the following figure.
One adapter is required for every two drives installed in the Storage Book. Since there are only two PCIe
slots in the Compute Book, only two adapters can be installed and therefore only four NVMe drives can be
installed in a Storage Book.
Lenovo System x3850 X6 (6241)
ServeRAID M5210
RAID controller
46C9110
PCIe low profile
LSI SAS3108
PCIe 3.0 x8
12 Gbps SAS
8
2x Mini-SAS HD x4
(SFF-8643)
SAS, SATA
HDD, SSD, SED
Yes
240
0/1/10; Optional 5/50
(RAID 5 FoD, 47C8708, or cache
upgrades)
Optional 6/60 (47C8706)
Yes (without cache)
1 GB no backup (47C8656)
1 GB flash backup (47C8660)
2 GB flash backup (47C8664)
4 GB flash backup (47C8668)
Optional
Optional (47C8710)
Optional (47C8712)
Yes (with RAID 5 FoD upgrade
or any cache upgrade
NVMe
N2215 Extender
SAS HBA PCIe Extender
47C8675 00ML997
PCIe low profile PCIe low profile
LSI SAS3008 None
PCIe 3.0 x8 PCIe 3.0 x8
12 Gbps SAS PCIe NVMe
8 2
2x Mini-SAS HD OCuLink
x4
(SFF-8643)
SAS, SATA NVMe
HDD, SSD SSD
Yes Yes
1024 2
None None
Yes Yes
None None
None None
No No
No No
No No
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