IBM z13s, Technical Manual

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IBM z13s Technical Guide
G.1.4 Management tasks
The IFP and resource groups perform all management tasks on the native PCIe adapters:
򐂰 Firmware update of adapters and resource groups
򐂰 Error recovery and failure data collection
򐂰 Diagnostic and maintenance tasks
Firmware update of adapters and resource groups
Firmware of native PCIe adapters and resource groups are part of the system’s microcode
and can be updated by a Microcode Change Level (MCL) upgrade. MCL upgrades on
adapters or on the code of the resource groups require the specific adapter or all native PCIe
adapters managed by the specific resource group (depending on the type of u-code that it
applies) to be offline during activation of the MCL. However, to maintain availability, MCLs can
only be applied to one resource group at a time. While one resource group is offline, the
second resource group and all adapters in it remain active. An MCL application for a native
PCIe adapter or resource group is not possible if an error condition exists within the other
resource group.
Error recovery and failure data collection
If an error in one of the resource groups or features assigned to one of the resource groups
occurs, the IFP manages error recovery and collects error data. The error data is sent by the
IFP to the SE, which then provides a message on the SE and the Hardware Management
Console (HMC). If an error requires maintenance, a call home to the IBM Support system is
started by the HMC.
Diagnostic and maintenance tasks
Any maintenance action on a native PCIe feature is managed by the IFP, including testing or
replacing a feature card. Before configuring a feature offline, the IFP ensures that the same
type of feature is available in the same or the other resource group (if applicable).
G.2 Native PCIe feature plugging rules
The following are maximum number of native PCIe adapters that can be installed in a z13s:
򐂰 Maximum of four Flash Express features, each of which requires two Flash Express
adapters configured, and can only be installed into slot 1 and 14, or 25 and 33 of a PCIe
I/O drawer.
򐂰 Maximum of 16 10GbE RoCE Express features, each of which has one adapter
configured.
򐂰 Maximum of eight zEDC Express features, each of which has one adapter configured.
Table G-1 shows the combinations of maximum number of native PCIe features on a z13s.
Table G-1 Combinations of maximum number of native PCIe features on z13s
Number of Flash
Express features
(2 adapters/feature) Maximum number of
zEDC Express
features Maximum number of
RoCE Express
features Minimum number of
PCIe I/O drawers
required
0 8 16 1
1 8 16 1