Multipathing With The Subsystem Device Driver; Example Of Installed Host Attachment Scripts - IBM TotalStorage DS6000 Attachment Manual

10. Move the cursor to ibm1750 and press Esc+7 to select the IBM 1750 disk
11. Press Enter and the installation begins.
12. Use the following command to verify that the file set is installed: lslpp -La |
Figure 39. Example of installed host attachment scripts

Multipathing with the Subsystem Device Driver

This section provides instructions for installing the multipathing software for SDD.
Ensure that you have followed the steps for preparing and installing the host
attachment scripts. See "Host attachment multipathing scripts" on page 71 for
specific instructions.
SDD drivers are provided with the storage unit, but it is advisable to look for the
latest version on the Internet. The SDD file sets (nonconcurrent HACMP), readme
files and documentation can be found at the following Web site:
http://www-1.ibm.com/servers/storage/support/software/sdd.html. More information
about installing and using SDD, see the IBM TotalStorage Multipath Subsystem
Device Driver User's Guide.
1. To verify that you have the latest version of SDD, look on the Internet for the
because we changed the directory before, or you can specify the full path).
Press Esc+4 and select the appropriate input directory. For example,
/usr/sys/inst.images <Installation Directory>.
9. Place the cursor at SOFTWARE and press Esc+4 to list the software to install.
device (the > should appear in front of the ibm1750 software).
grep ibm1750, as shown in Figure 39.
</usr/sys/inst.images>-->lslpp -La | grep ibm1750
devices.fcp.disk.ibm.rte
</usr/sys/inst.images>-->_
If the storage unit and SAN is correctly set up and volumes are assigned to
the NAS Gateway 500, you might see a listing of disks when you issue the
lsdev -Cc disk command. All disks residing on the storage unit should display
the following information in the description: hdiskx...... FC2105xxx.
The system disks hdisk0 (and hdisk1, if the system has two internal disks) do
not have the 1750 description.
Tip: At this point, it is not advised to configure volume groups, logical volumes,
or file systems on storage unit disks. This should be done after SDD is
installed. If volume groups are created before, the administrator has to convert
the hdisk volume group to a vpath volume group. (see the hd2vp command in
the SDD documentation).
If the physical volumes on an SDD volume group physical volumes are mixed
with hdisk devices and vpath devices, you must run the dpovgfix utility to fix
this problem. Otherwise, SDD does not function properly. Issue the dpovgfix
vg_name command to fix this problem.
latest version.
a. From the Subsystem Device Driver web page, go to the Download section
and select Subsystem device drivers.
b. Choose the appropriate version. Remember that NAS Gateway is AIX
powered, so choose Subsystem device driver for AIX.
32.6.100.18 C F IBM 1750 Disk Device
Chapter 8. Attaching to an IBM NAS Gateway 500 host
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