IBM System x3250 M4 At-a-glance Manual - page 9
IBM System x3250 M4
9
Table 7 lists the RAID controllers and additional options used for internal disk storage of x3250 M4 server.
Either a ServeRAID BR10il v2, ServeRAID M1015, or ServeRAID M5014 is required for models with 2.5"
simple-swap SAS drive bays or 2.5" hot-swap SAS drive bays.
Table 7. RAID controllers for internal storage
Part number
Description
Maximum quantity
supported
Standard models
where used
49Y4731
ServeRAID-BR10il SAS/SATA Controller v2
1
72x
46M0831
ServeRAID M1015 SAS/SATA Controller
1
-
46M0832
ServeRAID M1000 Series Advance Feature Key
1
-
46M0916
ServeRAID M5014 SAS/SATA Controller
1
-
If the BR10il v2 controller is used, it is installed in slot 1 (PCIe x4). Other RAID controllers are installed in
slot 2 (PCIe x8), and slot 1 is left vacant. Only one RAID controller can be used with the server to support
internal HDDs. Features of the supported RAID controllers are discussed below.
The ServeRAID BR10il v2 SAS/SATA Controller has the following specifications:
One Mini-SAS internal connector
Supports RAID levels 0, 1, and 1E
3 Gbps throughput per port
Based on the LSI 1064E controller
PCI Express 2.0 x4 host interface
Stripe size: 64 KB (fixed)
For more information, see the
ServeRAID-BR10il SAS/SATA Controller v2 for IBM System x
at-a-glance
guide:
http://www.redbooks.ibm.com/abstracts/tips0741.html?Open
The ServeRAID M1015 SAS/SATA Controller has the following specifications:
Two Mini-SAS internal connectors
Supports RAID levels 0, 1, and 10
Supports RAID levels 5 and 50 with optional ServeRAID M1000 Series Advanced Feature Key
6 Gbps throughput per port
Based on the LSI SAS2008 6 Gbps RAID on Chip (ROC) controller
PCI Express 2.0 x8 host interface
Configurable stripe size up to 64 KB
For more information, see the
ServeRAID M1015 SAS/SATA Controller for System x
at-a-glance guide:
http://www.redbooks.ibm.com/abstracts/tips0740.html?Open
The ServeRAID M5014 SAS/SATA Controller has the following specifications:
Two Mini-SAS internal connectors
Supports RAID levels 0, 1, 5, 10, and 50
6 Gbps throughput per port
PCI Express 2.0 x8 host interface
Based on the LSI SAS2108 6 Gbps RAID on Chip (ROC) controller
256 MB of onboard cache
For more information, see the
ServeRAID M5015 and M5014 SAS/SATA Controllers for IBM System x
at-a-glance guide:
http://www.redbooks.ibm.com/abstracts/tips0738.html?Open