Product guide

NeXtScale nx360 M4 21
The following figure shows the three variations (the two 3.5-inch cages look similar).
Figure 8. Drive bay options
There are two 3.5-inch drive cages - the last two rows of the above table. If the Storage Native Expansion
Tray is attached to the nx360 M4, then the use of the RAID cage (feature A4GE, option 00Y8615) allows
you to configure a RAID array that spans all 8 drives - the 7 in the storage tray and the 1 drive internal to
the nx360 M4. Such a configuration would be connected either to a ServeRAID M1115 adapter or N2115
SAS HBA.
If the 3.5-inch HDD cage (feature A41J) is used, then a RAID array can only be formed with the 7 drives in
the storage tray. In such a configuration, the drives in the storage tray are connected either to a
ServeRAID M1115 adapter or N2115 SAS HBA, and the single drive in the nx360 M4 is connected to the
ServeRAID C100.
Controllers for internal storage
The following table lists the RAID controllers and SAS HBA that are used for internal disk storage of the
nx360 M4 server. These are alternatives to the onboard SATA controller and one may be required
depending on the storage configuration.
Table 16. Drive controllers for internal storage
Part number Feature code Description
RAID controllers
81Y4448 A1MZ ServeRAID M1115 SAS/SATA Controller for System x
81Y4492 A1XL ServeRAID H1110 SAS/SATA Controller for System x
46C8988 A3MW N2115 SAS/SATA HBA for System x
None A17T ServeRAID C100 for System x*
Features on Demand Upgrades - ServeRAID M1115
81Y4542 A1X1 ServeRAID M1100 Series Zero Cache/RAID 5 Upgrade
* Windows and Linux only. No support for VMware, Hyper-V, or Xen