HP Carrier-grade cc3300 User Information and Service Guide - HP Carrier-Grade - Page 71

RAID Devices, PCI SCSI Cards, Internal SCSI Hard Drive Address Settings

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4. You may damage the service partition when configuring the external RAID. It may be necessary to reinstall the service partition and the OS after configuring the RAID controller. Refer to Chapter 4 for service partition installation instructions. RAID Devices The system will support only 1 RAID controller card. It must be installed in slot 1 of the low-profile PCI expansion riser. The Linux OS must be reinstalled after installing a zero channel RAID controller. Linux will identify a newly installed RAID controller before the internal SCSI controller. This means that any add-in SCSI controllers will have their devices enumerated before internal SCSI drives and external SCSI drives connected to channel A. PCI SCSI Cards The system will support up to 2 additional PCI SCSI controller cards. If installing additional SCSI controllers, install them in slots 2 and 3 of the low-profile PCI expansion riser. Linux will identify newly installed SCSI controllers after internal (channel A and B) SCSI devices, if the newly installed cards are located in the low-profile PCI expansion riser. The SCSI controllers will be identified before internal SCSI devices if the cards are installed in the full-height PCI expansion card cage. If the full-height PCI expansion card cage is used, you must install the SCSI devices in a lower numbered slot than the any RAID card. If SCSI devices are to be installed in the full-height PCI expansion card cage, proceed as follows: 1. Disable their controller's INT13 scan as described in the cc3310 Carrier Grade Server Software & Setup Reference Guide. 2. Do not connect or power on the SCSI drive(s) until after the OS has been installed. 3. After connecting and powering the SCSI drives, modify the parameters on the Linux kernel boot line. Edit the file /boot/grub/grub/conf and change the root=/dev/sda3 argument to reflect your new root disk. (Example: if the root disk in now the fifth drive, the argument should be root=/dev/sde3,) Internal SCSI Hard Drive Address Settings The design of the hot-swap backplane (HSB) facilitates HDD installation. For standard HDD SCSI address settings of 0 and 1, remove (or verify that they have been removed) all address jumpers from HDD. When choosing SCSI address settings other than 0 or 1, be aware of the following: 1. The internal HSB utilizes SCSI address 6. 2. Each internal HDD must be set to a unique SCSI address. 3. The factory settings are 0 (right drive) and 1 (left drive). 4. The least significant bit (LSB) for the left HDD has been hard wired - only odd-numbered SCSI addresses can be selected for the left HDD. 5. The right HDD can be set to any available SCSI address. 6. Address restrictions are illustrated below. Chapter 6 71

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Chapter 6
71
4.
You may damage the service partition when configuring the external RAID. It may be necessary to
reinstall the service partition and the OS after configuring the RAID controller. Refer to Chapter 4 for
service partition installation instructions.
RAID Devices
The system will support only 1 RAID controller card. It must be installed in slot 1 of the low-profile PCI
expansion riser. The Linux OS must be reinstalled after installing a zero channel RAID controller.
Linux will identify a newly installed RAID controller before the internal SCSI controller. This means that
any add-in SCSI controllers will have their devices enumerated before internal SCSI drives and external
SCSI drives connected to channel A.
PCI SCSI Cards
The system will support up to 2 additional PCI SCSI controller cards. If installing additional SCSI
controllers, install them in slots 2 and 3 of the low-profile PCI expansion riser.
Linux will identify newly installed SCSI controllers after internal (channel A and B) SCSI devices, if the
newly installed cards are located in the low-profile PCI expansion riser. The SCSI controllers will be
identified before internal SCSI devices if the cards are installed in the full-height PCI expansion card cage.
If the full-height PCI expansion card cage is used, you must install the SCSI devices in a lower numbered
slot than the any RAID card. If SCSI devices are to be installed in the full-height PCI expansion card cage,
proceed as follows:
1.
Disable their controller’s INT13 scan as described in the cc3310 Carrier Grade Server Software & Setup
Reference Guide.
2.
Do not connect or power on the SCSI drive(s) until after the OS has been installed.
3.
After connecting and powering the SCSI drives, modify the parameters on the Linux kernel boot line.
Edit the file
/boot/grub/grub/conf
and change the
root=/dev/sda3
argument to reflect your new
root disk. (Example: if the root disk in now the fifth drive, the argument should be
root=/dev/sde3,
)
Internal SCSI Hard Drive Address Settings
The design of the hot-swap backplane (HSB) facilitates HDD installation. For standard HDD SCSI address
settings of 0 and 1, remove (or verify that they have been removed) all address jumpers from HDD. When
choosing SCSI address settings other than 0 or 1, be aware of the following:
1.
The internal HSB utilizes SCSI address 6.
2.
Each internal HDD must be set to a unique SCSI address.
3.
The factory settings are 0 (right drive) and 1 (left drive).
4.
The least significant bit (LSB) for the left HDD has been hard wired – only odd-numbered SCSI
addresses can be selected for the left HDD.
5.
The right HDD can be set to any available SCSI address.
6.
Address restrictions are illustrated below.