Deleting A Path (Of A Device Included In Rootvg); Replacing An Hba - Hitachi XP P9500 User Manual

Deleting a Path (of a Device Included in rootvg)

The following shows an example of deleting a path of hdisk0 in an
environment where rootvg consists of hdisk0 and hdisk1.
1 Delete a path of a volume group other than rootvg by performing the
.
procedure described in
rootvg) on page
2 Check the list of current boot disks.
.
The following shows an example of executing the command:
# bootlist -m normal -o
hdisk0 blv=hd5
-
hdisk1 blv=hd5
...
3 Specify a boot disk according to the host environment to be used.
.
The following shows an example of executing the command:
# bootlist -m normal hdisk0 hdisk1
4 Make sure that the boot disk is configured with the specified number of
.
paths.
The following shows an example of executing the command:
# bootlist -m normal -o
hdisk0 blv=hd5
hdisk1 blv=hd5
...

Replacing an HBA

If there are multiple active paths for an LU, you can replace a desired HBA
while running your applications by placing offline only the path that goes
through the HBA to be replaced and using other paths to continue access.
To replace an HBA:
1 Execute the following command to find the fscsi number that
.
corresponds to the HBA that is to be replaced:
# lsdev -C | grep fscsi
The following are execution examples:
fscsi0 available 1H-08-02 FC SCSI I/O controller protocol device
fscsi1 available 11-08-02 FC SCSI I/O controller protocol device
In the second line of the above examples, 11 in 11-08-02 indicates the
bus number and 08 indicates the HBA adapter number. The fscsi
number to be used when replacing this HBA is 1.
2 Execute the dlmodmset utility for setting the HDLM execution environment
.
ODM to check the NPIV option setting.
Deleting a Path (of a Volume Group Other than
4-22:
HDLM Operation
Hitachi Dynamic Link Manager User Guide (for AIX(R))
4-23