Lenovo 7917B4G Guia do Utilizador descarregar pdf (Página 18)

IBM Flex System x440 Compute Node 18

These features are described as follows:

RAID 6 Upgrade (90Y4410)



Adds support for RAID 6 and RAID 60. This is a Feature on Demand license.

Performance Upgrade (90Y4412)



The Performance Upgrade for IBM Flex System (implemented using the LSI MegaRAID FastPath

software) provides high-performance I/O acceleration for SSD-based virtual drives by using a

low-latency I/O path to increase the maximum I/O per second (IOPS) capability of the controller. This

feature boosts the performance of applications with a highly random data storage access pattern,

such as transactional databases. Part number 90Y4412 is a Feature on Demand license.

SSD Caching Enabler for traditional hard drives (90Y4447)



The SSD Caching Enabler for IBM Flex System (implemented using the LSI MegaRAID CacheCade

Pro 2.0) is designed to accelerate the performance of HDD arrays with only an incremental

investment in SSD technology. The feature enables the SSDs to be configured as a dedicated cache

to help maximize the I/O performance for transaction-intensive applications, such as databases and

web serving. The feature tracks data storage access patterns and identifies the most frequently

accessed data. The hot data is then automatically stored on the SSDs that are assigned as a

dedicated cache pool on the ServeRAID controller. Part number 90Y4447 is a Feature on Demand

license. This feature requires at least one SSD drive be installed.

The 1.8-inch SSDs supported with the ServeRAID M5115 controller are listed in the following table.

Table 10. Supported 1.8-inch SSDs

Part number Feature code Description Maximum

supported

43W7746 5420 IBM 200GB SATA 1.8" MLC SSD 8

43W7726 5428 IBM 50GB SATA 1.8" MLC SSD 8

Internal tape drives

The server does not support an internal tape drive. However, it can be attached to external tape drives

using Fibre Channel connectivity.

Optical drives

The server does not support an internal optical drive option. However, you can connect an external USB

optical drive, such as the IBM and Lenovo part number 73P4515 or 73P4516, or use the remote media

feature of the IMMv2 and the Chassis Management Module.

Note: The USB port on the compute node supplies up to 0.5 A at 5 V. For devices that require more

power, an additional power source will be required.

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