IBM 3850 X6 Podręcznik Użytkownika Pobierz pdf (Strona 34)

IBM System x3850 X6 34

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

Description Maximum

supported

x3850 X6

Standard models

where used

81Y4478 A1WX ServeRAID M5120 SAS/SATA Controller 2 -

Hardware upgrades for the M5120

81Y4487 A1J4 ServeRAID M5100 Series 512MB Flash/RAID 5

Upgrade

1 -

81Y4559 A1WY ServeRAID M5100 Series 1GB Flash/RAID 5 Upgrade 1 -

Feature on Demand upgrades for the M5120

90Y4318 A2MD ServeRAID M5100 Series SSD Caching Enabler 1* -

90Y4273 A2MC ServeRAID M5100 Series SSD Performance Key 1* -

81Y4546 A1X3 ServeRAID M5100 Series RAID 6 Upgrade 1* -

* 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

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