Emulex LightPulse LPe1105-M4 HBA Guia de Instalação Página 151
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Device reconfiguration procedures
151
Additional Notes
Device reconfiguration procedures
The Linux v2.6.x kernel lacks a command built into the kernel that
allows for a dynamic SCSI bus reconfiguration such as
drvconfig or
ioscan.
The SCSI bus may be rescanned with a system reboot, or with a
removal and reinsertion of the modular driver. In either case, all I/O
must be stopped and all other mounted filesystems must be
unmounted before rebooting or removing the modular driver.
Note: In the Linux v2.6.x kernel, the adapter numbers will increment in the
/proc filesystem with each reinsertion of the Emulex driver.
Rebooting the host
Rebooting the host allows for the reliable detection of newly added
devices. The host may be rebooted after all I/O has been stopped.
Unloading and reloading the modular Emulex driver
Depending upon the hardware configuration, it is possible to unload
and reload the modular Emulex driver. This driver removal from and
reinsertion into the kernel causes a scan of the SCSI bus and causes
the driver to detect any newly added device(s).
If the driver is to be removed from and then reinserted into the
kernel, perform the following before removing the driver:
1. Stop all I/O.
2. Unmount all filesystems attached to the Emulex driver.
3. If the Unisphere Host Agent or Navisphere Agent/CLI is
installed and enabled on the host, stop the Unisphere Host Agent
or Navisphere Agent service by typing one of the following
commands:
• For the Unisphere Host Agent:
/etc/init.d/hostagent stop
or
service hostagent stop
- -508-435-1000 1
- Contents 3
- Emulex Driver 4
- Chapter 8 Additional Notes 6
- ◆ Linux operating environment 9
- ◆ Emulex adapters and drivers 9
- Courier italic 11
- Introduction 13
- Purpose of this document 14
- Host connectivity 14
- Boot device support 15
- Installation Steps 19
- Linux distribution of choice 21
- Summary of installation steps 22
- Installing the adapter 24
- Adapter edge connectors 28
- PCI Express slots 29
- PCI Express slots aligned 29
- Installing and 31
- Configuring the BIOS 31
- Settings 31
- LP1102 Emulex banner 32
- Updating the boot BIOS 33
- LP6DUTIL.EXE) 37
- LP6DUTIL.EXE program file 37
- 7.x driver) 38
- Installing and 43
- Configuring the Linux 43
- Host with the Emulex 43
- SLES 9, SLES 10, and SLES 11 52
- /sys filesystem 58
- ...Restoring 83
- Cleaning up 86
- ./hbanyware 86
- * If PEMC owerPath 88
- ◆ Miracle Linux v4.0 92
- ◆ RedFlag DC Server 5.0 92
- 4 and RHEL 5” on page 91 93
- Updating the Adapter 97
- Firmware 97
- FCoE adapters 102
- Connecting to the 109
- Planning procedure 110
- Enabling persistent binding 111
- Connecting to the Storage 112
- Editing /etc/modules.conf 114
- Network Settings window 117
- Configuring a Boot 121
- Device on an EMC 121
- Storage Array 121
- Limitations 124
- /dev/sda by the Linux 125
- Preparing the host 128
- CLARiiON 136
- Emulex v7.x-Series driver 138
- Application Kit 141
- Do you have a driver disk 142
- Driver Update OK 143
- Upgrading the Linux kernel 145
- Additional Notes 147
- Rebooting the host 151
- HPQ server-specific note 155
- Block device file names 157
- Red Hat distributions 158
- SuSE distributions 158
- PowerPath examples 159
- Character device file names 159
- Echoing the /proc filesystem 163
- Rescanning the SCSI bus 164
- Special Instructions 167
- For example: 170
- 3. Reboot the host 170
- • For SuSE distributions use: 173
- Example: 173
- 4. Reboot the host 173
- 2.1 Intel Itanium systems 178
- 3.0 Intel Itanium systems 179
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