IBM DS8900F User Manual

1. If you have open-systems hosts and remote mirror and copy functions, you must enable SNMP
notications for status reporting.
2. If you plan to use advanced functions SNMP messaging, you must set those functions by using DS CLI.
When you choose to enable email notications, email messages are sent to all the email addresses that
you specify on the worksheet when the storage complex encounters a serviceable event or must alert you
to other information.
You must complete the worksheet for each management console to be installed.
Control switch settings
Use the control switch settings work sheet to specify certain settings that affect host connectivity. You
are asked to enter these choices on the control switch settings work sheet so that your technical service
representative can set them during the installation of your storage system.
The following control switches are set using the choices you specify on the control settings work sheet.
IBM i LUN serial sufx number
Use this control switch setting only when you attach more than one DS8000 storage system to an AS/400
or IBM i host and the last three digits of the worldwide node name (WWNN) are the same on any of the
storage systems.
Control switch settings - attachment to IBM Z
The following control switch settings are specic to IBM Z .
16 Gb FC Forward Error Correction
Forward Error Correction (FEC) intercepts and corrects certain errors to improve the adoption of 16
Gbps FCP and FICON host adapters.
Note: FEC is always enabled for 32 Gbps Fiber Channel host adapters.
Control-unit initiated reconguration (CUIR) support
Control-unit initiated reconguration (CUIR) allows automation of channel path quiesce and resume
actions during certain service actions. This setting eliminates the requirement for manual actions from
the host.
Control unit threshold
This control switch provides the threshold level, presenting a SIM to the operator console for
controller related errors. SIMs are always sent to the attached IBM Z hosts for logging to the Error
Recording Data Set (ERDS). SIMs can be selectively reported to the IBM Z host operator console, as
determined by SIM type and SIM severity.
Device threshold
This control switch provides the threshold level, presenting a SIM to the operator console for device
related errors. Device threshold levels are the same type and severity as control unit threshold
settings.
Lights-on fast load for host adapters
Fibre Channel lights-on fast load provides seamless microcode update to storage arrays, and
eliminates potential loss of access.
Media threshold
This control switch provides the threshold level, presenting a SIM to the operator console for media
related errors. Media threshold levels are the same type and severity as control unit threshold
settings.
Present SIM data to all hosts
Service Information Messages (SIMs) are offloaded to the rst I/O request directed to each logical
subsystem in the storage facility if the request is device or control unit related, or offloaded to the
individual logical volume when the request is media related. This control switch determines whether
Chapter 7. Planning your storage complex setup
109

IBM DS8900F Specifications

General

Brand	IBM
Model	DS8900F
Category	Storage
Language	English