User`s guide

Chapter 1. Implementing Fibre Channel host adapter cards 9
1.3.2 Attachment requirements for the AS/400 or iSeries
This section lists the requirements for attaching the ESS to your host system:
1. Ensure that you have all of the items in the equipment list.
2. Obtain the documents for the IBM AS/400 or iSeries host system from the
following Web site:
publib.boulder.ibm.com/pubs/html/as400/infocenter.htm
3. See the following Web site for details about program temporary fixes (PTFs)
that you need to install on your AS/400 or iSeries host system:
www.storage.ibm.com/hardsoft/products/ess/supserver.htm
4. Check the LUN limitations for your host system.
5. Contact your IBM service support representative to install and configure the
IBM ESS.
1.3.3 Attachment considerations
This section lists the attachment considerations for an AS/400 or iSeries host
system. The following must be taken into account:
򐂰 You can specify a LUN serial number that is eight characters. For example,
you can specify a LUN serial number, 0LLLLNNN, where:
The LUN serial number is eight characters in the format 0LLLLNNN, where:
LLLL — a unique volume number assigned by the ESS when the LUN is
created.
NNN — low-order three characters of the ESS unit serial number or unique
three character value entered using an ESS service panel menu option.
The menu option is found by using the following method:
a. From Service Menu choose the option Configuration Options Menu
b. Take the option Change / Show Control Switches.
c. Highlight the option AS/400 LUN Serial Number Suffix.
d. On the option Control Switch Value press F4 to list the available values.
Note: The default value is the last three digits of the serial number for the
ESS. This might create problems on iSeries systems that have multiple ESSs
attached to the same host system. We recommended that you use the value
Use_Box_S/N.