Hot Replacement Of Pci Express Cards - Fujitsu PRIMEQUEST 2000 Series Administration Manual

CHAPTER 5 Hot Maintenance in Red Hat Enterprise Linux 7

5.7 Hot Replacement of PCI Express Cards

5.7 Hot Replacement of PCI Express Cards
This section describes the following methods of PCI Express card replacement with the PCI Hot Plug (PHP)
function:
- Common replacement operations for all PCI Express cards such as power supply operations
- Specific operations added to procedures to use a specified card function or a driver for installation
There are two ways to perform PCI hot plug:
- Operation by using sysfs
- Operation by using dr commands
You can perform the operation by using dr commands if Dynamic Reconfiguration utility is installed in the
partition. If not, be sure to use the operation by using sysfs. Although you can perform the operation by using
sysfs even if Dynamic Reconfiguration utility is installed in the partition, it is recommended to perform the
operation by using dr commands to prevent wrong operation.
Hereafter, description about the operation by using dr commands starts at 'For the partition with Dynamic
Reconfiguration utility installed' and description about the operation by sysfs starts at 'For the partition without
Dynamic Reconfiguration utility installed'.
Notes
- If you replace PCI Express cards on an IOU, see
- In hot replacement of PCI Express cards, if you reboot the partition on OS without hot adding new PCI
card to same PCI Express slot after you performed hot remove command, you cannot hot add a PCI
Express card to the PCI Express slot unless you power off the partition.
If you reboot the partition on OS before hot adding, you must power off the partition and replace the PCI
Express card.
- If the Extended Partitioning is enabled, dr command is not supported for PCI Express card hot
replacement.
Remarks
For details on the card replacement procedures not described in this chapter, see the respective product
manuals.
5.7.1 Overview of common replacement procedures for PCI Express
cards
This section provides an overview of common replacement procedures for all PCI Express cards.
1. Performing the required operating system and software operations depending on the PCI Express card
type
2. Powering off a PCI slot
3. Replacing a PCI card
This step is performed by the field engineer in charge of your system.
4. Powering on a PCI slot
5. Performing the required operating system and software operations depending on the PCI card type
Note
This chapter provides instructions (e.g., commands, configuration file editing) for the operating system and
subsystems. Be sure to refer to the respective product manuals to confirm the command syntax and impact
on the system before performing tasks with those instructions.
The following sections describe card addition, removal, and replacement with the required instructions (e.g.,
commands, configuration file editing) for the operating system and subsystems, together with the actual
hardware operations. Step 3 is performed by the field engineer in charge of your system.
5.7.2 PCI Express card replacement procedure in detail
This section describes how to replace a PCI Express card.
'5.4 Hot replacement of
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IOU'.
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