IBM Flex System p24L Compute Node User manual

IBM Flex System p24L, p260 and p460 Compute Nodes 1
I B M ®
IBM Flex System p24L, p260 and p460 Compute
Nodes
IBM Redbooks Product Guide
The IBM Flex System™ p260 and p460 Compute Nodes are servers based on IBM® POWER®
architecture technologies. These compute nodes run in IBM Flex System Enterprise Chassis units to
provide a high-density, high-performance compute node environment, using advanced processing
technology. The nodes support IBM AIX, IBM i, or Linux operating environments and are designed to run
a wide variety of workloads. The p260 and p24L are standard compute nodes with two POWER7 or
POWER7+ processors, and the p460 is a double-wide compute node with four POWER7 or POWER7+
processors.
Figure 1 shows the IBM Flex System p260 Compute Node.
Figure 1. The IBM Flex System p260 Compute Node
Did you know?
IBM Flex System is a new category of computing that integrates multiple server architectures, networking,
storage, and system management capability into a single system that is easy to deploy and manage. IBM
Flex System has full built-in virtualization support of servers, storage, and networking to speed
provisioning and increase resiliency. In addition, it supports open industry standards, such as operating
systems, networking and storage fabrics, virtualization, and system management protocols, to easily fit
within existing and future data center environments. IBM Flex System is scalable and extendable with
multi-generation upgrades to protect and maximize IT investments.

IBM Flex System p24L, p260 and p460 Compute Nodes 2
Key features
The IBM Flex System p24L, p260 and p460 Compute Nodes are high-performance POWER7-based
servers optimized for virtualization, performance, and efficiency. This section describes the key features
of the server.
Scalability and performance
The compute nodes offers numerous features to boost performance, improve scalability, and reduce
costs:
The IBM POWER7 and POWER7+ processors, which improve productivity by offering superior

system performance with AltiVec floating point and integer SIMD instruction set acceleration.
Integrated PowerVM technology, providing superior virtualization performance and flexibility.

Choice of processors, including an 8-core POWER7+ processor operating at 4.1 GHz with 80 MB of

L3 cache (10 MB per core).
Up to four processors, 32 cores, and 128 threads to maximize the concurrent execution of

applications.
Three levels of integrated cache including 10 MB (POWER7+) or 4 MB (POWER7) of L3 cache per

core.
Up to 16 (p24L, p260) or 32 (p460) DDR3 ECC memory RDIMMs that provide a memory capacity of

up to 256 GB (p260) or 512 GB (p460).
Support for Active Memory Expansion, which allows the effective maximum memory capacity to be

much larger than the true physical memory through innovative compression techniques.
The use of solid-state drives (SSDs) instead of traditional spinning drives (HDDs), which can

significantly improve I/O performance. An SSD can support up to 100 times more I/O operations per
second (IOPS) than a typical HDD.
Up to eight (p24L, p260) or 16 (p460) 10Gb Ethernet ports per compute node to maximize networking

resources in a virtualized environment.
Includes two (p24L, p260) or four (p460) P7IOC high-performance I/O bus controllers to maximize

throughput and bandwidth.
Support for high-bandwidth I/O adapters, up to two in each p24L or p260 Compute Node or up to four

in each p460 Compute Node. Support for 10 Gb Ethernet, 8 Gb Fibre Channel, and QDR InfiniBand.
Availability and serviceability
The p24L, p260 and p460 provide many features to simplify serviceability and increase system uptime:
ECC and chipkill provide error detection and recovery in the event of a non-correctable memory

failure.
Tool-less cover removal provides easy access to upgrades and serviceable parts, such as drives,

memory, and adapter cards.
A light path diagnostics panel and individual light path LEDs quickly lead the technician to failed (or

failing) components. This simplifies servicing, speeds up problem resolution, and helps improve
system availability.
Predictive Failure Analysis (PFA) detects when system components (for example, processors,

memory, and hard disk drives) operate outside of standard thresholds and generates proactive alerts
in advance of possible failure, therefore increasing uptime.

IBM Flex System p24L, p260 and p460 Compute Nodes 3
Available solid-state drive (SSDs) offer significantly better reliability than traditional mechanical HDDs

for greater uptime.
A built-in Integrated Flexible Service Processor (FSP) continuously monitors system parameters,

triggers alerts, and performs recovering actions in case of failures to minimize downtime.
There is a front panel USB port for upgrades and local servicing tasks.

There is a three-year customer replaceable unit and onsite limited warranty, next business day 9x5.

Optional service upgrades are available.
Manageability and security
Powerful systems management features simplify management of the p260 and p460:
Includes an FSP to monitor server availability and to provide diagnostics.

Integrates with the IBM Flex System™ Manager for proactive systems management. It offers

comprehensive systems management for the entire IBM Flex System platform that help to increase
uptime, reduce costs, and improve productivity through advanced server management capabilities.
Energy efficiency
The compute nodes offer the following energy-efficiency features to save energy, reduce operational
costs, increase energy availability, and contribute to the green environment:
The component-sharing design of the IBM Flex System chassis provides ultimate power and cooling

savings.
Support for IBM EnergyScale to dynamically optimize processor performance versus power

consumption and system workload.
Active Energy Manager provides advanced power management features with actual real-time energy

monitoring, reporting, and capping features.
SSDs consume as much as 80% less power than traditional spinning 2.5-inch HDDs.

The servers use hexagonal ventilation holes, a part of IBM Calibrated Vectored Cooling™ technology.

Hexagonal holes can be grouped more densely than round holes, providing more efficient airflow
through the system.

IBM Flex System p24L, p260 and p460 Compute Nodes 4
Locations of key components and connectors
Figure 2 shows the front of the p260. The p24L is similar.
Figure 2. Front view of the IBM Flex System p260 Compute Node
Figure 3 shows the locations of key components inside the p260.
Figure 3. Inside view of the IBM Flex System p260 Compute Node

IBM Flex System p24L, p260 and p460 Compute Nodes 5
Figure 4 shows the front of the p460.
Figure 4. Front view of the IBM Flex System p460 Compute Node
Figure 5 shows the locations of key components inside the p460.
Figure 5. Inside view of the IBM Flex System p460 Compute Node

IBM Flex System p24L, p260 and p460 Compute Nodes 6
Standard specifications
The following table lists the standard specifications.
Table 1. Standard specifications (part 1)
Components Specification
Model numbers IBM Flex System p24L Compute Node: 1457-7FL
IBM Flex System p260 Compute Node: 7895-22X, 23A, and 23X
IBM Flex System p460 Compute Node: 7895-42X and 43X.
Form factor p24L: Standard-width compute node.
p260: Standard-width compute node.
p460: Double-width compute node.
Chassis support IBM Flex System Enterprise Chassis.
Processor p24L: Two IBM POWER7 processors
p260: Two IBM POWER7 (model 22X) or POWER7+ (models 23A and 23X) processors.
p460: Four IBM POWER7 (model 42X) or POWER7+ (model 43X) processors.
POWER7 processors: Each processor is a single-chip module (SCM) that contains either eight
cores (up to 3.55 GHz and 32 MB L3 cache) or four cores (3.3 GHz and 16 MB L3 cache). Each
processor has 4 MB L3 cache per core. Integrated memory controller in each processor, each
with four memory channels. Each memory channel operates at 6.4 Gbps. There is one GX++
I/O bus connection per processor. Supports SMT4 mode, which enables four instruction threads
to run simultaneously per core. Uses 45 nm fabrication technology.
POWER7+ processors: Each processor is a single-chip module (SCM) that contains either eight
cores (up to 4.1 GHz or 3.6 GHz and 80 MB L3 cache) , four cores (4.0 GHz and 40 MB L3
cache) or two cores (4.0 GHz and 20 MB L3 cache). Each processor has 10 MB L3 cache per
core. There is an integrated memory controller in each processor, each with four memory
channels. Each memory channel operates at 6.4 Gbps. There is one GX++ I/O bus connection
per processor. Supports SMT4 mode, which enables four instruction threads to run
simultaneously per core. Uses 32 nm fabrication technology.
Chipset IBM P7IOC I/O hub.
Memory p24L: 16 DIMM sockets
p260: 16 DIMM sockets.
p460: 32 DIMM sockets.
RDIMM DDR3 memory supported. Integrated memory controller in each processor, each with
four memory channels. Supports Active Memory Expansion with AIX 6.1 or later. All DIMMs
operate at 1066 MHz. Both LP (low profile) and VLP (very low profile) DIMMs supported,
although only VLP DIMMs are supported if internal HDDs are configured. The use of 1.8-inch
solid-state drives allows the use of LP and VLP DIMMs.
Memory
maximums
p24L: 512 GB using 16x 32 GB DIMMs.
p260: 512 GB using 16x 32 GB DIMMs.
p460: 1 TB using 32x 32 GB DIMMs.
Memory
protection
ECC, chipkill.
Disk drive bays Two 2.5-inch non-hot-swap drive bays supporting 2.5-inch SAS HDD or 1.8-inch SATA SSD
drives. If LP DIMMs are installed, then only 1.8-inch SSDs are supported. If VLP DIMMs are
installed, then both HDDs and SSDs are supported. An HDD and an SSD cannot be installed
together.
Maximum
internal storage
1.8 TB using two 900 GB SAS HDD drives, or 354 GB using two 177 GB SSD drives.

IBM Flex System p24L, p260 and p460 Compute Nodes 7
Table 1. Standard specifications (part 2)
Components Specification
RAID support RAID support via the operating system.
Network
interfaces
None standard. Optional 1Gb or 10Gb Ethernet adapters.
PCI Expansion
slots
p24L: Two I/O connectors for adapters. PCIe 2.0 x16 interface.
p260: Two I/O connectors for adapters. PCIe 2.0 x16 interface.
p460: Four I/O connectors for adapters. PCIe 2.0 x16 interface.
Ports One external USB port.
Systems
management
FSP, Predictive Failure Analysis, light path diagnostics panel, automatic server restart, Serial
over LAN support. IPMI compliant. Support for IBM Flex System Manager, IBM Systems
Director, and Active Energy Manager.
Security
features
Power-on password, selectable boot sequence.
Video None. Remote management via Serial over LAN and IBM Flex System Manager.
Limited
warranty
3-year customer-replaceable unit and onsite limited warranty with 9x5/NBD.
Operating
systems
supported
IBM AIX, IBM i, and Linux. See "Supported operating systems" for details.
Service and
support
Optional service upgrades are available through IBM ServicePacs®: 4-hour or 2-hour response
time, 8-hour fix time, 1-year or 2-year warranty extension, remote technical support for IBM
hardware and selected IBM and OEM software.
Dimensions p24L: Width: 215mm (8.5”), height 51mm (2.0”), depth 493mm (19.4”).
p260: Width: 215mm (8.5”), height 51mm (2.0”), depth 493mm (19.4”).
p460: Width: 437 mm (17.2"), height 51mm (2.0”), depth 493mm (19.4”).
Weight p24L: Maximum configuration: 7.0 kg (15.4 lb).
p260: Maximum configuration: 7.0 kg (15.4 lb).
p460: Maximum configuration: 14.0 kg (30.6 lb).
The compute nodes are shipped with the following items:
Statement of Limited Warranty

Important Notices

Documentation CD that contains the Installation and User's Guide

Chassis support
The p24L, p260 and p460 are supported in the IBM Flex System Enterprise Chassis. Up to fourteen p24L
or p260 compute nodes or up to seven x440 compute nodes (or a combination of all three) can be
installed in the chassis in 10U of rack space. The actual number of compute nodes that can be installed in
a chassis depends on these factors:
The number of power supplies installed

The capacity of the power supplies installed (2100 W or 2500 W)

The power redundancy policy used (N+1 or N+N)


IBM Flex System p24L, p260 and p460 Compute Nodes 8
The following table provides guidelines about what number of compute nodes can be installed. For more
guidance, use the Power Configurator, found at the following website:
http://ibm.com/systems/bladecenter/resources/powerconfig.html
In the table:
Green = No restriction to the number of compute nodes that are installable

Yellow = Some bays must be left empty in the chassis

Table 3. Maximum number of x440 Compute Nodes installable based on power supplies installed and
power redundancy policy used
2100 W power supplies installed 2500 W power supplies installed
Compute
node
N+1, N=5
6 power
supplies
N+1, N=4
5 power
supplies
N+1, N=3
5 power
supplies
N+N, N=3
6 power
supplies
N+1, N=5
6 power
supplies
N+1, N=4
5 power
supplies
N+1, N=3
4 power
supplies
N+N, N=3
6 power
supplies
p24L 14 12 9 10 14 14 12 13
p260 14 12 9 10 14 14 12 13
p460 7 6 4 5 7 7 6 6
IBM PureFlex System
IBM PureFlex™ System consists of pre-defined, pre-configured components to simplify client purchasing
and provide the total IBM Flex System integrated value proposition.
The IBM Flex System p24L, p260 and p460 Compute Nodes can be ordered as part of an PureFlex
System solution. There are two PureFlex System offerings available:
IBM PureFlex System Single-chassis for smaller installations (Feature #EFD1)

IBM PureFlex System Multi-chassis for database or transactional systems (Feature #EFD3)

A PureFlex System solution consists of these:
An IBM Flex System Compute Node, either the p260, p460, or x240

An IBM Flex System Enterprise Chassis (7893-92X)

An IBM Flex System Manager (7955-01M)

An IBM Storwize V7000 Disk System (2076-124)

Two IBM System Network 1455 Rack Switches G8264R Model 64C (with PureFlex System

Enterprise only, with the p460)
Two IBM 2498 SAN24B-4 Express Model B24 (with PureFlex System Enterprise only, with the p460)

An IBM 42U rack (7953-94X)

Notes:
The p260 and p24L cannot be used in an initial PureFlex System Multi-chassis configuration.

The IBM Flex System p460 cannot be used in an initial PureFlex System Single-chassis

configuration.
An initial PureFlex System Multi-chassis requires at least two compute nodes.

Additional compute nodes, chassis, and IBM 42U racks can be ordered after the basic requirements for
the PureFlex System solution are met. These additional orders will be indicated by feature number EFD4
(Expansion Option) or EFD5 (Custom Expansion).

IBM Flex System p24L, p260 and p460 Compute Nodes 9
Processor features
The compute nodes support the processor features listed in the following table. The selected feature code
includes two or four processors, as indicated.
Table 2. Processor features
Feature code Processor description
IBM Flex System p260 Compute Node - model 7895-23X
EPRD 8-core 4.0 GHz POWER7+ Processor Module (two 4-core processors)
EPRB 16-core 3.6 GHz POWER7+ Processor Module (two 8-core processors)
EPRA 16-core 4.1 GHz POWER7+ Processor Module (two 8-core processors)
IBM Flex System p260 Compute Node - model 7895-23A
EPRC 4-core 4.0 GHz POWER7+ Processor Module (two 2-core processors)
IBM Flex System p260 Compute Node - model 7895-22X
EPR1 8-core 3.3 GHz POWER7 Processor Module (two 4-core processors)
EPR3 16-core 3.2 GHz POWER7 Processor Module (two 8-core processors)
EPR5 16-core 3.55 GHz POWER7 Processor Module (two 8-core processors)
IBM Flex System p460 Compute Node - model 7895-42X
EPR2 16-core 3.3 GHz POWER7 Processor Module (four 4-core processors)
EPR4 32-core 3.2 GHz POWER7 Processor Module (four 8-core processors)
EPR6 32-core 3.55 GHz POWER7 Processor Module (four 8-core processors)
IBM Flex System p460 Compute Node - model 7895-43X
EPRK 16-core 4.0 GHz POWER7+ Processor Module (four 4-core processors)
EPRH 32-core 3.6 GHz POWER7+ Processor Module (four 8-core processors)
EPRJ 32-core 4.1 GHz POWER7+ Processor Module (four 8-core processors)
IBM Flex System p24L Compute Node - model 1457-7FL
EPR7 12-core 3.72 GHz POWER7 Processor Module (two 6-core processors)
EPR8 16-core 3.2 GHz POWER7 Processor Module (two 8-core processors)
EPR9 16-core 3.55 GHz POWER7 Processor Module (two 8-core processors)

IBM Flex System p24L, p260 and p460 Compute Nodes 10
Memory features
IBM DDR3 memory is compatibility tested and tuned for optimal performance and throughput. IBM
memory specifications are integrated into the light path diagnostics for immediate system performance
feedback and optimum system uptime. From a service and support standpoint, IBM memory
automatically assumes the IBM system warranty, and IBM provides service and support worldwide.
The compute nodes support low profile (LP) or very low profile (VLP) DDR3 memory RDIMMs. If LP
memory is used, 2.5-inch HDDs are not supported in the system due to physical space restrictions.
However, 1.8-inch SSDs are still supported. If VLP memory is used, either 2.5-inch HDDs or 1.8-inch
SSDs are supported.
The p260 and p24L supports up to 16 DIMMs. The p460 supports up to 32 DIMMs. Each processor has
four memory channels, and there are two DIMMs per channel. All supported DIMMs operate at 1066 MHz.
The following table lists memory features available for the compute nodes. DIMMs are ordered and can
be installed two at a time, but to maximize memory performance, install them in sets of eight (one for
each of the memory channels).
Table 3. Memory features
Feature
code Description Form factor* p24L 7FL p260 22X p260 23A p260 23X p460 42X p460 43X p270 24X
EM04* 2x 2 GB DDR3 RDIMM 1066 MHz LP Yes Yes No No Yes No No
8196 2x 4 GB DDR3 RDIMM 1066 MHz VLP Yes Yes Yes Yes Yes Yes Yes
8199 2x 8 GB DDR3 RDIMM 1066 MHz VLP Yes Yes No No Yes No No
EEMD 2x 8 GB DDR3 RDIMM 1066 MHz VLP Yes Yes Yes Yes Yes Yes Yes
8145* 2x 16 GB DDR3 RDIMM 1066 MHz LP Yes Yes No No Yes No No
EEME* 2x 16 GB DDR3 RDIMM 1066 MHz LP Yes Yes Yes Yes Yes Yes Yes
EEMF* 2x 32 GB DDR3 RDIMM 1066 MHz LP Yes Yes Yes Yes Yes Yes Yes
* If 2.5-inch HDDs are installed, low-profile DIMM features cannot be used - EM04, 8145, EEME and EEMF cannot
be used.

IBM Flex System p24L, p260 and p460 Compute Nodes 11
Internal disk storage options
The compute nodes have two non-hot-swap drive bays attached to the cover of the system. Either two
2.5-inch SAS HDDs or two 1.8-inch SATA SSDs can be installed. If 2.5-inch HDDs are installed, then LP
memory DIMMs are not supported, only VLP DIMMs. The use of 1.8-inch SSDs does not limit the
memory DIMMs used. SSDs and HDDs cannot be mixed.
The following table lists the supported drive options.
Table 4. 2.5-inch drive options for internal disk storage
Feature code Description Maximum supported
2.5-inch SAS hard disk drives (HDDs)
8274 300 GB 10K RPM non-hot-swap 6 Gbps SAS 2
8276 600 GB 10K RPM non-hot-swap 6 Gbps SAS 2
8311 900 GB 10K RPM non-hot-swap 6 Gbps SAS 2
1.8-inch SATA solid-state drives (SSDs)
8207 177 GB SATA non-hot-swap SSD 2
The choice of drive also determines what cover is used for the compute node, because the drives are
attached to the cover. The following table lists the options.
Table 5. Compute node cover options
Feature code Description
IBM Flex System p24L and p260 Compute Nodes
7069 Top cover with HDD connectors
7068 Top cover with SSD connectors
7067 Top cover for no drives
IBM Flex System p460 Compute Node
7066 Top cover with HDD connectors
7065 Top cover with SSD connectors
7005 Top cover for no drives
Internal tape drives
The server does not support an internal tape drive. However, it can be attached to external tape drives
using Fibre Channel connectivity.
Optical drives
The server does not support an internal optical drive option. However, you can connect an external USB
optical drive, such as IBM and Lenovo part number 73P4515 or 73P4516.

IBM Flex System p24L, p260 and p460 Compute Nodes 12
I/O architecture
The p24L and p260 have two I/O expansion connectors for attaching I/O adapter cards, and the p460 has
four I/O expansion connectors. All I/O adapters are the same shape and can be used in any location.
The following figures show the location of the I/O adapters in the p24L, p260 and p460.
Figure 6. Location of the I/O adapter slots in the IBM Flex System p24L and p260 Compute Nodes
Figure 7. Location of the I/O adapter slots in the IBM Flex System p460 Compute Node
All I/O adapters are the same shape and can be used in any available slot.. A compatible switch or

IBM Flex System p24L, p260 and p460 Compute Nodes 13
pass
-
through module must be installed in the corresponding I
/
O bays in the chassis
,
as indicated in the
following table. Installing two switches means that all ports of the adapter are enabled, which improves
performance and network availability.
Table 5. Adapter to I/O bay correspondence
Corresponding I/O module bay
in the chassis
I/O adapter slot
in the server Port on the adapter*
Bay 1 Bay 2 Bay 3 Bay 4
Port 1 Yes No No No
Port 2 No Yes No No
Port 3 (for 4- and 8-port cards) Yes No No No
Port 4 (for 4- and 8-port cards) No Yes No No
Port 5 (for 8-port cards) Yes No No No
Port 6 (for 8-port cards) No Yes No No
Port 7 (for 8-port cards)** Yes No No No
Slot 1
Port 8 (for 8-port cards)** No Yes No No
Port 1 No No Yes No
Port 2 No No No Yes
Port 3 (for 4- and 8-port cards) No No Yes No
Port 4 (for 4- and 8-port cards) No No No Yes
Port 5 (for 8-port cards) No No Yes No
Port 6 (for 8-port cards) No No No Yes
Port 7 (for 8-port cards)** No No Yes No
Slot 2
Port 8 (for 8-port cards)** No No No Yes
Port 1 Yes No No No
Port 2 No Yes No No
Port 3 (for 4- and 8-port cards) Yes No No No
Port 4 (for 4- and 8-port cards) No Yes No No
Port 5 (for 8-port cards) Yes No No No
Port 6 (for 8-port cards) No Yes No No
Port 7 (for 8-port cards)** Yes No No No
Slot 3
(p460 Compute Node only)
Port 8 (for 8-port cards)** No Yes No No
Port 1 No No Yes No
Port 2 No No No Yes
Port 3 (for 4- and 8-port cards) No No Yes No
Port 4 (for 4- and 8-port cards) No No No Yes
Port 5 (for 8-port cards) No No Yes No
Port 6 (for 8-port cards) No No No Yes
Port 7 (for 8-port cards)** No No Yes No
Slot 4
(p460 Compute Node only)
Port 8 (for 8-port cards)** No No No Yes
* The use of adapter ports 3, 4, 5, and 6 require upgrades to the switches as described in Table 4. The EN4091
Pass-thru only supports ports 1 and 2 (and only when two Pass-thru modules are installed).
** Adapter ports 7 and 8 are reserved for future use. The chassis supports all eight ports but there are currently no
switches available that connect to these ports.

IBM Flex System p24L, p260 and p460 Compute Nodes 14
The following figure shows the location of the switch bays in the IBM Flex System Enterprise Chassis.
Figure 8. Location of the switch bays in the IBM Flex System Enterprise Chassis
The following figure shows how two-port adapters are connected to switches installed in the chassis.
Figure 9. Logical layout of the interconnects between I/O adapters and I/O modules

IBM Flex System p24L, p260 and p460 Compute Nodes 15
Network adapters
The compute nodes do not have any networking integrated on the system, allowing flexibility. The
following table lists the supported network adapters and which slots each is supported in.
Table 7. Network adapters
Feature code Description Slot 1 Slot 2 Slot 3
(p460) Slot 4 (p460)
10 Gb Ethernet
EC24 IBM Flex System CN4058 8-port 10Gb Converged Adapter Yes Yes Yes Yes
EC26 IBM Flex System EN4132 2-port 10Gb RoCE Adapter No Yes Yes Yes
1762 IBM Flex System EN4054 4-port 10Gb Ethernet Adapter Yes Yes Yes Yes
1 Gb Ethernet
1763 IBM Flex System EN2024 4-port 1Gb Ethernet Adapter Yes Yes Yes Yes
InfiniBand
1761 IBM Flex System IB6132 2-port QDR InfiniBand Adapter No Yes No Yes
When adapters are installed in slots, ensure that compatible switches are installed in the corresponding
bays of the chassis:
IBM Flex System Fabric CN4093 10Gb Converged Scalable Switch (#ESW2)

IBM Flex System Fabric EN4093R 10Gb Scalable Switch (#ESW7)

IBM Flex System Fabric EN4093 10Gb Scalable Switch (#3593)

IBM Flex System Fabric SI4093 System Interconnect Module (#ESWA)

IBM Flex System EN4091 10Gb Ethernet Pass-thru (#3700)

IBM Flex System EN2092 1Gb Ethernet Scalable Switch (#3598)

Storage host bus adapters
Table 8 lists storage HBAs supported by the compute nodes.
Table 8. Storage adapters
Part
number Description Slot 1 Slot 2 Slot 3
(p460) Slot 4 (p460)
Fibre Channel
1764 IBM Flex System FC3172 2-port 8Gb FC Adapter No Yes No Yes
EC23 IBM Flex System FC5052 2-port 16Gb FC Adapter No Yes No Yes
EC2E IBM Flex System FC5054 4-port 16Gb FC Adapter No Yes No Yes
Power supplies
Server power is derived from the power supplies installed in the chassis. There are no server options
regarding power supplies.

IBM Flex System p24L, p260 and p460 Compute Nodes 16
Integrated virtualization
The compute nodes support PowerVM virtualization capabilities for AIX, IBM i, and Linux environments.
PowerVM contains the following features:
Support for the following number of maximum virtual servers (or logical partitions, LPARs):

p24L: Up to 160 virtual servers

p260: Up to 160 virtual servers

p460: Up to 320 virtual servers

Role-based access control (RBAC)

RBAC brings an added level of security and flexibility to the administration of the Virtual I/O Server
(VIOS), a part of PowerVM. With RBAC, you can create a set of authorizations for the user
management commands. You can assign these authorizations to a role named UserManagement,
and this role can be given to any other user. So one user with this role can manage the users on the
system, but will not have any further access. With RBAC, the VIOS has the capability of splitting
management functions that presently can be done only by the padmin user, providing better security
by giving only the necessary access to users, and easy management and auditing of system
functions.
Suspend/resume

Using suspend/resume, you can provide long-term suspension (greater than five to ten seconds) of
partitions, saving partition state (that is, memory, NVRAM, and VSP state) on persistent storage. This
makes server resources available that were in use by that partition, restoring partition state to server
resources, and resuming operation of that partition and its applications, either on the same server or
on another server.
Shared storage pools

VIOS allows the creation of storage pools that can be accessed by VIOS partitions that are deployed
across multiple Power Systems servers. Therefore, an assigned allocation of storage capacity can be
efficiently managed and shared. Up to four systems can participate in a Shared Storage Pool
configuration. This can improve efficiency, agility, scalability, flexibility, and availability.
The Storage Mobility feature allows data to be moved to new storage devices within Shared Storage
Pools, while the virtual servers remain completely active and available. The VM Storage
Snapshots/Rollback feature allows multiple point-in-time snapshots of individual virtual server
storage, and these copies can be used to quickly roll back a virtual server to a particular snapshot
image. The VM Storage Snapshots/Rollback functionality can be used to capture a VM image for
cloning purposes or before applying maintenance.
Thin provisioning

VIOS supports highly efficient storage provisioning, whereby virtualized workloads in VMs can have
storage resources from a shared storage pool dynamically added or released, as required.
VIOS grouping

Multiple VIOS partitions can utilize a common shared storage pool to more efficiently utilize limited
storage resources and simplify the management and integration of storage subsystems.
Network node balancing for redundant Shared Ethernet Adapters (SEAs)

This is a useful function when multiple VLANs are being supported in a dual VIOS environment. The
implementation is based on a more granular treatment of trunking, where there are different trunks
defined for the SEAs on each VIOS. Each trunk serves different VLANs, and each VIOS can be the
primary for a different trunk. This occurs with just one SEA definition on each VIOS.

IBM Flex System p24L, p260 and p460 Compute Nodes 17
Light path diagnostics
For quick problem determination when located physically at the server, the compute nodes offers a
three-step guided path:
The fault LED on the front panel
1.
The light path diagnostics panel, shown in the following figure
2.
LEDs next to key components on the system board
3.
The light path diagnostics panel is visible when you remove the server from the chassis. The panel is
located on the top right-hand side of the compute node, as shown in the following figure.
Figure 10. Location of light path diagnostics panel
To illuminate the light path diagnostics LEDs, power off the compute node, slide it out of the chassis, and
press the power button. The power button doubles as the light path diagnostics remind button when the
server is removed from the chassis.
The meanings of the LEDs in the light path diagnostics panel are listed in the following table.
Table 9. Light path diagnostic panel LEDs
LED Meaning
LP The light path diagnostics panel is operational.
S BRD A system board error is detected.
MGMT There is an error with the FSP.
D BRD There is a fault with the disk drive board.
DRV 1 There is a drive 1 fault.
DRV 2 There is a drive 2 fault.
ETE A fault has been detected with the expansion unit (p260 only).

IBM Flex System p24L, p260 and p460 Compute Nodes 18
If problems occur, the light path diagnostics LEDs assist in identifying the subsystem involved. To
illuminate the LEDs with the compute node removed, press the power button on the front panel. This
temporarily illuminates the LEDs of the troubled subsystem to direct troubleshooting efforts towards a
resolution.
Typically, an administrator has already obtained this information from the IBM Flex System Manager or
Chassis Management Module before removing the node, but having the LEDs helps with repairs and
troubleshooting if onsite assistance is needed.
Supported operating systems
The p460 and p260 model 22X support the following operating systems:
AIX V7.1 with the 7100-01 Technology Level with Service Pack 3 with APAR IV14284

AIX V7.1 with the 7100-01 Technology Level with Service Pack 4, or later

AIX V7.1 with the 7100-00 Technology Level with Service Pack 6, or later

AIX V6.1 with the 6100-07 Technology Level, with Service Pack 3 with APAR IV14283

AIX V6.1 with the 6100-07 Technology Level, with Service Pack 4, or later

AIX V6.1 with the 6100-06 Technology Level with Service Pack 8, or later

AIX V5.3 with the 5300-12 Technology Level with Service Pack 6, or later (AIX 5L V5.3 Service

Extension is required)
IBM i 6.1 with i 6.1.1 machine code, or later; Requires VIOS

IBM i 7.1 TR4, or later; Requires VIOS

VIOS 2.2.1.4, or later

SUSE Linux Enterprise Server 11 Service Pack (SP) 2 for POWER

Red Hat Enterprise Linux 5.7, for POWER, or later

Red Hat Enterprise Linux 6.2, for POWER, or later

The p24L supports the following operating systems:
Virtual I/O Server 2.2.1.4 or later

SUSE Linux Enterprise Server 11 SP 2 for POWER

Red Hat Enterprise Linux 5.7 for POWER

Red Hat Enterprise Linux 6.2 for POWER

The p260 model 23X supports the following operating systems:
IBM i 6.1 with i 6.1.1 machine code, or later; Requires VIOS

IBM i 7.1 TR5, or later; Requires VIOS

VIOS 2.2.2.1 or later

VIOS 2.2.1.5 or later

AIX V7.1 with the 7100-02 Technology Level or later

AIX V7.1 with the 7100-01 Technology Level with Service Pack 7 or later

AIX V6.1 with the 6100-08 Technology Level or later

AIX V6.1 with the 6100-07 Technology Level, with Service Pack 7, or later

AIX V6.1 with the 6100-06 Technology Level with Service Pack 11, or later

AIX V5.3 with the 5300-12 Technology Level with Service Pack 7, or later (AIX 5L V5.3 Service

Extension is required)
SUSE Linux Enterprise Server 11 Service Pack (SP) 2 for POWER

Red Hat Enterprise Linux 5.7 for POWE

Red Hat Enterprise Linux 6.2 for POWER

The p260 model 23A and p460 model 43X support the following operating systems:
AIX V7.1 with the 7100-02 Technology Level with Service Pack 3 or later

AIX V6.1 with the 6100-08 Technology Level with Service Pack 3 or later


IBM Flex System p24L, p260 and p460 Compute Nodes 19
AIX V5.3 Technology Level Support offering with the Service Extension

VIOS 2.2.2.3 or later

IBM i 6.1 with i 6.1.1 machine code, or later; Requires VIOS

IBM i 7.1 TR6 or later; Requires VIOS

SUSE Linux Enterprise Server 11 Service Pack (SP) 2 for POWER

Red Hat Enterprise Linux 6.4 for POWER

Note: Support by some of these operating system versions will be post generally availability. See the IBM
ServerProven® website for the latest information about the specific versions and service levels supported
and any other prerequisites:
http://www.ibm.com/systems/info/x86servers/serverproven/compat/us/nos/matrix.shtml
Physical specifications
Dimensions and weight of the p24L and p260:
Width: 215 mm (8.5”)
Height: 51 mm (2.0”)
Depth: 493 mm (19.4”)
Maximum configuration: 7.0 kg (15.4 lb)
Dimensions and weight of the p460:
Width: 437 mm (17.2")
Height: 51 mm (2.0”)
Depth: 493 mm (19.4”)
Maximum configuration: 14.0 kg (30.6 lb)
Supported environment
The IBM Flex System p24L, p260 and p460 compute nodes and the IBM Flex System Enterprise Chassis
comply with ASHRAE Class A3 specifications.
This is the supported operating environment:
5 - 40 °C (41 - 104 °F) at 0 - 914 m (0 - 3,000 ft)

5 - 28 °C (41 - 82 °F) at 914 - 3,050 m (3,000 - 10,000 ft)

Relative humidity: 8 - 85%

Maximum altitude: 3,050 m (10,000 ft)


IBM Flex System p24L, p260 and p460 Compute Nodes 20
Warranty options
The IBM Flex System p24L, p260 and p460 Compute Nodes have a three-year onsite warranty with 9x5
next-business-day terms. IBM offers the warranty service upgrades through IBM ServicePac, discussed in
this section. The IBM ServicePac is a series of prepackaged warranty maintenance upgrades and
post-warranty maintenance agreements with a well-defined scope of services, including service hours,
response time, term of service, and service agreement terms and conditions.
IBM ServicePac offerings are country-specific. That is, each country might have its own service types,
service levels, response times, and terms and conditions. Not all covered types of ServicePac might be
available in a particular country. For more information about IBM ServicePac offerings available in your
country visit the IBM ServicePac Product Selector at
https://www-304.ibm.com/sales/gss/download/spst/servicepac.
Table 10 explains warranty service definitions in more detail.
Table 10. Warranty service definitions
Term Description
IBM onsite
repair (IOR)
A service technician will come to the server's location for equipment repair.
24x7x2 hour A service technician is scheduled to arrive at your customer’s location within two hours after
remote problem determination is completed. We provide 24-hour service, every day, including IBM
holidays.
24x7x4 hour A service technician is scheduled to arrive at your customer’s location within four hours after
remote problem determination is completed. We provide 24-hour service, every day, including IBM
holidays.
9x5x4 hour A service technician is scheduled to arrive at your customer’s location within four business hours
after remote problem determination is completed. We provide service from 8:00 a.m. to 5:00 p.m.
in the customer's local time zone, Monday through Friday, excluding IBM holidays. If after 1:00
p.m. it is determined that on-site service is required, the customer can expect the service
technician to arrive the morning of the following business day. For noncritical service requests, a
service technician will arrive by the end of the following business day.
9x5 next
business day
A service technician is scheduled to arrive at your customer’s location on the business day after we
receive your call, following remote problem determination. We provide service from 8:00 a.m. to
5:00 p.m. in the customer's local time zone, Monday through Friday, excluding IBM holidays.
In general, these are the types of IBM ServicePac warranty and maintenance service upgrades:
One, two, three, four, or five years of 9x5 or 24x7 service coverage

Onsite repair from next-business-day to four or two hours

One or two years of warranty extension
