External Disk Storage Expansion - IBM X3850 X6 Product Manual

External disk storage expansion

The server supports attachment to external storage expansion enclosures, such as the EXP2500 series,
by using the ServeRAID M5120 SAS/SATA Controller. The server can also be attached to supported
external storage systems, such as the IBM System Storage® DS3500 series, by using a supported HBA
(see the earlier "Storage HBA" section). The following table shows the RAID controllers and options for
external disk storage expansion.
Table 21. RAID controllers and options for external disk storage expansion
Part number Feature
code
81Y4478 A1WX
Hardware upgrades for the M5120
81Y4487 A1J4
81Y4559 A1WY
Feature on Demand upgrades for the M5120
90Y4318 A2MD
90Y4273 A2MC
81Y4546 A1X3
* These M5120 features upgrades require a cache memory upgrade (81Y4487 or 81Y4559).
The ServeRAID M5120 SAS/SATA Controller has the following specifications:
Eight external 6 Gbps SAS/SATA ports

Up to 6 Gbps throughput per port

Two external x4 mini-SAS connectors (SFF-8088)

Supports RAID 0, 1, and 10

Supports RAID 5 and 50 with optional M5100 Series RAID 5 upgrades

Supports RAID 6 and 60 with the optional M5100 Series RAID 6 upgrade

Supports 512 MB or 1 GB flash-backed cache

PCIe 3.0 x8 host interface

Based on the LSI SAS2208 6 Gbps ROC controller

Supports connectivity to the EXP2512 and EXP2524 storage expansion enclosures

For more information, see the IBM Redbooks Product Guide ServeRAID M5120 SAS/SATA Controller for
IBM System x , TIPS0858, found at the following website:
http://www.redbooks.ibm.com/abstracts/tips0858.html?Open
IBM System x3850 X6
Description
ServeRAID M5120 SAS/SATA Controller
ServeRAID M5100 Series 512MB Flash/RAID 5
Upgrade
ServeRAID M5100 Series 1GB Flash/RAID 5 Upgrade
ServeRAID M5100 Series SSD Caching Enabler
ServeRAID M5100 Series SSD Performance Key
ServeRAID M5100 Series RAID 6 Upgrade
Maximum Standard models
supported where used
x3850 X6
2 -
1 -
1 -
1* -
1* -
1* -
37