External Disk Storage Expansion - Lenovo System x3550 M4 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.
Table 22. RAID controllers and options for external disk storage expansion
Part number Feature
code
81Y4478** A1WX
Hardware upgrades for the M5120 (per controller)
81Y4508 A22E
81Y4484 A1J3
81Y4487 A1J4
81Y4559 A1WY
47C8670 A4G6
Feature on Demand upgrades for the M5120 (per server)
81Y4544 A1X2
90Y4318 A2MD
90Y4273 A2MC
81Y4546 A1X3
* The ServeRAID M5100 Series Battery Kit (81Y4508) is only supported with ServeRAID M5100 Series 512MB
Cache/RAID 5 Upgrade (81Y4484).
† This FoD upgrade requires a cache memory upgrade.
** The ServeRAID M5120 SAS/SATA Controller requires the x3550 M4 Thermal Solution Kit, 00Y7117 or the second
processor (with additional system fans).
The ServeRAID M5120 SAS/SATA Controller has the following specifications:
Eight external 6 Gbps SAS/SATA portscool
Two external x4 mini-SAS connectors (SFF-8088)
Supports RAID levels 0, 1, and 10
Supports RAID levels 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 battery-backed cache or 512 MB, 1 GB, or 2 GB flash-backed cache
Up to 6 Gbps throughput per port
PCIe x8 Gen 3 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 Lenovo Press Product Guide ServeRAID M5120 SAS/SATA
Controller: http://lenovopress.com/tips0858
he controllers support connectivity to the external expansion enclosures listed in the following table. Up to
nine expansion enclosures can be daisy-chained per one external controller port. For better performance,
distribute expansion enclosures evenly across both ports of a controller.
Table 23. External expansion enclosures
Part number Description
610012X EXP2512 Storage Enclosure
610024X EXP2524 Storage Enclosure
System x3550 M4 (E5-2600)
Description
ServeRAID M5120 SAS/SATA Controller
ServeRAID M5100 Series Battery Kit
ServeRAID M5100 Series 512MB Cache/RAID 5
Upgrade
ServeRAID M5100 Series 512MB Flash/RAID 5 Upgrade 1
ServeRAID M5100 Series 1GB Flash/RAID 5 Upgrade
ServeRAID M5100 Series 2GB Flash/RAID 5 Upgrade
ServeRAID M5100 Series Zero Cache/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
2** -
1* -
1 -
-
1 -
1 -
1 -
1† -
1† -
1† -
Maximum quantity supported per
one controller
17
9
31