IBM Power Systems Series, Руководство пользователя

Страница: 172 / 244

Voltage
12 V
Important requirements for adapter installation
An automatic sector conversion takes place for use with the new adapter when migrating existing SAS
disk enclosures and devices from existing previous PCIe SAS adapters to PCIe3 SAS adapters. For more
information about the migration procedures, see Upgrading a SAS RAID storage adapter.
Operating system or partition requirements
If you are installing a new feature, ensure that you have the software that is required to support the new
feature and that you determine whether any prerequisites must be met for this feature and attaching
devices. For information about operating system and partition requirements, see one of the following
topics:
• The latest version of enabling libraries and utilities can be downloaded from Fix Central (http://
www.ibm.com/support/fixcentral/).
• Power Systems Prerequisites (http://www14.software.ibm.com/support/customercare/iprt/home).
• IBM SSIC (System Storage Interoperation Center) (http://www-03.ibm.com/systems/support/storage/
ssic/interoperability.wss).
• The latest version of the device driver or IBM Power RAID adapter utilities (iprutils) can be downloaded
from the IBM Service and Productivity Tools website (http://www14.software.ibm.com/webapp/
set2/sas/f/lopdiags/home.html).
• For support details, see the Linux Alert website (http://www14.software.ibm.com/webapp/set2/sas/f/
lopdiags/info/LinuxAlerts.html).
PCIe3 x8 SAS RAID internal adapter 6 Gb (FC EJ1F, FC EJ1H, FC EL66, and FC EL68; CCIN 57D7)
Learn about the specifications and operating system requirements for the PCIe3 x8 SAS RAID internal
adapter 6 Gb (CCIN 57D7) that is integrated with the base function storage backplane (FC EJ1F) in the
9008-22L, 9009-22A, or 9223-22H system. Adding of another PCIe3 x8 SAS RAID internal adapter 6 Gb
(FC EJ1H or FC EL68) enables the base function storage backplane (FC EJ1F) to be configured as a split
storage backplane in the 9008-22L, 9009-22A, or 9223-22H.
Overview
The PCIe3 x8 SAS RAID internal adapter 6 Gb is an internal PCI Express (PCIe) generation 3 (Gen3),
serial-attached SCSI (SAS) Random Array of Independent Disks (RAID) adapter that is integrated in the
9008-22L, 9009-22A, or 9223-22H. The PCIe3 x8 SAS RAID internal adapter 6 Gb is part of a composite
feature of the base function storage backplane (FC EJ1F). The adapter contains the SAS RAID controller.
The PCIe3 x8 SAS RAID internal adapter 6 Gb is preinstalled in the dedicated internal PCIe3, x8 slot P1-
C49 in the 9008-22L, 9009-22A, or 9223-22H. The internal adapter has a data read or write speed of 6
Gbps.
Adapter caching
The PCIe3 x8 SAS RAID internal adapter 6 Gb does not have a non-volatile write cache. However, Linux
customers can take advantage of a volatile adapter write cache of up to 1 Gb (compressed) for improved
performance. This support is available with the 2.4.10 version of IBM Power RAID adapter utilities
( iprutils ) available from the IBM Linux Power Tools Repository (http://www14.software.ibm.com/
webapp/set2/sas/f/lopdiags/yum.html) and with the latest adapter firmware available from the Fix
Central website (http://www.ibm.com/support/fixcentral/).
Single adapter configuration
This configuration of the storage backplane in the 9008-22L, 9009-22A, or 9223-22H with one PCIe3 x8
SAS RAID internal adapter 6 Gb (FC EJ1F) supports 8 numbers of 6.35 cm (2.5 inches), small form-factor
(SFF) hard disk drives (HDDs), or solid-state drives (SSDs). The PCIe3 x8 SAS RAID internal adapter 6 Gb
supports the drives to be used as just-a-bunch of disks (JBOD) or as a RAID array. The supported RAID
levels are RAID 0, 5, 6, and 10. Two mini-SAS HD cables connect the PCIe3 x8 SAS RAID internal adapter
158 Power Systems: Managing PCIe adapters