注： 此文为本公司技术原创，如要转载，请注明出处。否则拒绝任何转载。
 
 RDAC ： 这是针对IBM 存储的一个双通道软件，主要是管理两块以上的HBA卡光纤连接到存储时用到的相关技术。
网上看过许多朋友在针对这种技术的沟通与讨论，经历过两次这样相关技术的安装，特将相关的安装过程，写出来。
    此次安装采用直连接到存储，没有通过光纤交换机连接到DS4700上。
 

• 硬件平台

（1）磁盘柜DS4700 express  磁盘柜
（2）主机ibm X3650M2
（3）HBA卡为：Emulex LightPulse Fibre Channel SCSI
（4）连接图
 
 
 
 

• 软件环境

（1）Redhat as 4.0 U7 版本
 

• 安装配置

• 安装过程：安装操作系统时，建议把HBA卡加上，以后再进行安装。
• 然后再修/boot/grub/grub.conf文件

[root@yyjj2 grub]# more grub.conf
# grub.conf generated by anaconda
#
# Note that you do not have to rerun grub after making changes to this file
# NOTICE:  You have a /boot partition.  This means that
#          all kernel and initrd paths are relative to /boot/, eg.
#          root (hd0,0)
#          kernel /vmlinuz-version ro root=/dev/sda12
#          initrd /initrd-version.img
#boot=/dev/sda
default=0
timeout=5
splashimage=(hd0,0)/grub/splash.xpm.gz
hiddenmenu
title Red Hat Enterprise Linux AS-up (2.6.9-78.ELsmp) witch MPP support
        root (hd0,0)
        kernel /vmlinuz-2.6.9-78.ELsmp ro root=LABEL=/ rhgb quiet
        initrd /mpp-2.6.9-78.ELsmp.img
title Red Hat Enterprise Linux AS (2.6.9-78.ELsmp)
        root (hd0,0)
        kernel /vmlinuz-2.6.9-78.ELsmp ro root=LABEL=/ rhgb quiet
        initrd /initrd-2.6.9-78.ELsmp.img
title Red Hat Enterprise Linux AS-up (2.6.9-78.EL)
        root (hd0,0)
        kernel /vmlinuz-2.6.9-78.EL ro root=LABEL=/ rhgb quiet
        initrd /initrd-2.6.9-78.EL.img
 

• 确认生成mpp-2.6.9-78.ELsmp.img 

[root@yyjj2 tmp]# cd rdac/
root@yyjj2 boot]# ls
config-2.6.9-78.EL      initrd-2.6.9-78.ELsmp.img  message.ja       System.map-2.6.9-78.EL
config-2.6.9-78.ELsmp   lost+found     mpp-2.6.9-78.ELsmp.img     System.map-2.6.9-78.ELsmp
grub                    memtest86+-1.26            symvers-2.6.9-78.EL.gz     vmlinuz-2.6.9-78.EL
initrd-2.6.9-78.EL.img  message                    symvers-2.6.9-78.ELsmp.gz  vmlinuz-2.6.9-78.ELsmp
[root@yyjj2 boot]# cd grub/
 
 
 
[root@yyjj2 grub]# more grub.conf
# grub.conf generated by anaconda
#
# Note that you do not have to rerun grub after making changes to this file
# NOTICE:  You have a /boot partition.  This means that
#          all kernel and initrd paths are relative to /boot/, eg.
#          root (hd0,0)
#          kernel /vmlinuz-version ro root=/dev/sda12
#          initrd /initrd-version.img
#boot=/dev/sda
default=0
timeout=5
splashimage=(hd0,0)/grub/splash.xpm.gz
hiddenmenu
title Red Hat Enterprise Linux AS-up (2.6.9-78.ELsmp) witch MPP support
        root (hd0,0)
        kernel /vmlinuz-2.6.9-78.ELsmp ro root=LABEL=/ rhgb quiet
        initrd /mpp-2.6.9-78.ELsmp.img
title Red Hat Enterprise Linux AS (2.6.9-78.ELsmp)
        root (hd0,0)
        kernel /vmlinuz-2.6.9-78.ELsmp ro root=LABEL=/ rhgb quiet
        initrd /initrd-2.6.9-78.ELsmp.img
title Red Hat Enterprise Linux AS-up (2.6.9-78.EL)
        root (hd0,0)
        kernel /vmlinuz-2.6.9-78.EL ro root=LABEL=/ rhgb quiet
        initrd /initrd-2.6.9-78.EL.img
 
[root@yyjj2 grub]#   ls -l
total 288
 
IBM 42C2069 4Gb 1-Port PCIe FC HBA for System x on PCI bus 15 device 00 irq 193
  Vendor: IBM       Model: 1814      FAStT   Rev: 0916
  Type:   Direct-Access                      ANSI SCSI revision: 05
  Vendor: IBM       Model: 1814      FAStT   Rev: 0916
  Type:   Direct-Access                      ANSI SCSI revision: 05
  Vendor: IBM       Model: 1814      FAStT   Rev: 0916
  Type:   Direct-Access                      ANSI SCSI revision: 05
  Vendor: IBM       Model: 1814      FAStT   Rev: 0916
  Type:   Direct-Access                      ANSI SCSI revision: 05
  Vendor: IBM       Model: 1814      FAStT   Rev: 0916
  Type:   Direct-Access                      ANSI SCSI revision: 05
  Vendor: IBM       Model: 1814      FAStT   Rev: 0916
  Type:   Direct-Access                      ANSI SCSI revision: 05
  Vendor: IBM       Model: Universal Xport   Rev: 0916
  Type:   Direct-Access                      ANSI SCSI revision: 05
 
 

• 然后再disable avt/dt  切换功能
   

         Disable AVT
     
            Open the DS4000 Storage Manager Enterprise Management window,
               - Highlight the subsystem
               - Select Tools
               - Select Execute script.
               - A script editing window opens. In this window
                 - Select File
                 - Select Load Script
                 - Give the full path name for the script file
                   (eg . /usr/scripts/DisableAVT_Linux.scr) and click OK
                 - Select Tools
                 - Select Verify and Execute
                
               Please refer to the IBM System Storage DS4000 Storage Manager
               version 10 Installation and Support Guide for appropriate OS
               or the Enterprise Window Online help for more information
               on how to execute a script.
 
 

• 测试

root@yyjj2 grub]# lsmod
Module                  Size  Used by
parport_pc             29569  0
lp                     15345  0
parport                44621  2 parport_pc,lp
autofs4                28105  0
i2c_dev                13889  0
i2c_core               29121  1 i2c_dev
sunrpc                176697  1
ds                     21961  0
yenta_socket           23105  0
pcmcia_core            70097  2 ds,yenta_socket
cpufreq_powersave       3265  0
ib_srp                 38281  0
ib_sdp                 54785  0
ib_ipoib               96673  0
rdma_ucm               17993  0
rdma_cm                39381  2 ib_sdp,rdma_ucm
iw_cm                  12361  1 rdma_cm
ib_addr                11081  1 rdma_cm
ib_umad                20969  0
ib_ucm                 20937  0
ib_uverbs              43377  2 rdma_ucm,ib_ucm
ib_cm                  42217  4 ib_srp,ib_ipoib,rdma_cm,ib_ucm
ib_sa                  48841  4 ib_srp,ib_ipoib,rdma_cm,ib_cm
ib_mad                 43497  3 ib_umad,ib_cm,ib_sa
ib_core                69825  12 ib_srp,ib_sdp,ib_ipoib,rdma_ucm,rdma_cm,iw_cm,ib_umad,ib_ucm,ib_uverbs,ib_cm,ib_sa,ib_mad
md5                     5953  1
ipv6                  285729  37 ib_ipoib
joydev                 12225  0
usbnet                 33737  0
mii                     7361  1 usbnet
dm_mirror              33865  0
dm_multipath           23505  0
dm_mod                 77609  7 dm_mirror,dm_multipath
button                  9313  0
battery                11465  0
ac                      6985  0
uhci_hcd               35305  0
ehci_hcd               35013  0
hw_random               7393  0
bnx2                  147933  0
ext3                  138833  12
jbd                    69489  1 ext3
mppVhba               135648  7
lpfc                  206021  14
scsi_transport_fc      12097  1 lpfc
ata_piix               19269  0
libata                124713  1 ata_piix
mptscsih                2625  0
mptsas                 25697  12 mptscsih
mptspi                 13265  1 mptscsih
mptscsi                46673  2 mptsas,mptspi
mptbase                74401  3 mptsas,mptspi,mptscsi
mppUpper              125692  1 mppVhba
sg                     42489  0
sd_mod                 19393  18
scsi_mod   145425  11 ib_srp,mppVhba,lpfc,scsi_transport_fc,libata,mptsas,mptspi,mptscsi,mppUpper,sg,sd_mod