Transcript 121921-webcast-ucs-v2-matt-josex

Unified Computing System (UCS) 2.0
- New Hardware & Software Features
Matthew Wronkowski – Escalation Engineer
Jose Martinez – Escalation Engineer
Cisco Support Community – Expert
Series Webcast
 Today’s featured experts are Cisco Support
Escalation Engineers
Jose Martinez and Matthew Wronkowski
 We also have Expert Panelists Dave McFarland &
Mike Timm to help answering technical questions
during the live session
© 2011 Cisco and/or its affiliates. All rights reserved.
2
Thank You for Joining Us Today
Today’s presentation will include audience polling
questions
We encourage you to participate!
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3
Thank You for Joining Us Today
If you would like a copy of the presentation slides, click the
PDF link in the chat box on the right or go to
https://supportforums.cisco.com/community/netpro/datacenter/unified-computing
Or, https://supportforums.cisco.com/docs/DOC-22551
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4
Polling Question 1
What Cisco UCS Manager (UCSM) software
are you currently using?
a) UCSM 2.0(1)
b) UCSM 1.4(1) or 1.4(3)
c) UCSM 1.3(1)
d) Don’t have a UCS system at this time
e) Other release
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5
Submit Your Questions Now
Use the Q&A panel to submit your questions. Experts will start
responding those
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6
Unified Computing System (UCS) 2.0
- New Hardware & Software Features
Matthew Wronkowski – Escalation Engineer
Jose Martinez – Escalation Engineer
Agenda
 UCS 2.0 Hardware Introduction
UCS 6248 Fabric Interconnect
UCS 2208XP I/OM
Port-channel support
VIC 1280 adapter
 UCS 2.0 Software Introduction
iSCSI boot support
Disjointed L2 support
VMDirectPath with vMotion
RedHat KVM with VM-FEX
HDD Health Status
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8
UCS 2.0 Hardware Introduction
UCS 6248UP Fabric Interconnect
UCS 6248UP Fabric Interconnect
 2nd Generation of 1RU Fabric Interconnect
 PID: UCS-FI-6248UP
 Total of 48 unified ports. 32 base board + 16 GEM
 1/10GE and 1/2/4/8FC option
 Slider based configuration for ports
 New ASICs (Carmel / Sunnyvale) which improves many aspects of the
switching capabilities:
•
Lower latency (2 us)
•
Bigger TCAM size (4k)
•
Higher number of active VLANs (4k)
•
Higher number of IGMP entries (2k)
•
Better buffer allocation (higher number of buffer per port, number of
unicast/multicast VoQ and egress queues among other)
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UCS 6248UP Fabric Interconnect
32 x Fixed ports: 1/10 GE or 1/2/4/8 FC
Fabric Interconnect
Cluster Connectivity
Console
Expansion Module (GEM)
Out of Band Mgmt
10/100/1000
Fan Module
Fan Module
N + N Redundant FANs
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Power Entry
Power Entry
N + N Power Supplies
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UCS 6248UP Unified Ports
FC
Native Fibre Channel
Eth
Lossless Ethernet:
1/10GbE, FCoE, iSCSI, NAS
 Simplify switch purchase remove ports ratio guess
work
 Increase design flexibility
 Remove specific protocol
bandwidth bottlenecks
© 2011 Cisco and/or its affiliates. All rights reserved.
Use-cases
 Flexible LAN & storage convergence
based on business needs
 Service can be adjusted based on
the demand for specific traffic
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UCS 6248UP Unified Ports
 Ports on the base card or the Unified Port GEM Module can either be
Ethernet or FC
 Only a continuous set of ports can be configured as Ethernet or FC
 Alternating Ethernet or FC are not supported
 Ethernet Ports have to be the 1st set of ports
 Port type changes take effect after next reboot of switch for Base board
ports or power-off/on of the GEM for GEM unified ports.
Base card – 32 Unified Ports
Eth
FC
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GEM – 16 Unified Ports
Eth
FC
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UCS 6248UP Unified Ports
• Each fabric is configured
independently
• Click on Fabric Interconnect
• Click on Configure Unified
Ports
• Reboot warning displayed
• Require approx. 6 minutes
• Change SFP!
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UCS 2.0 Hardware Introduction
UCS 2208XP I/OM
UCS 2208XP I/OM
• 2nd Generation of IOModule (FEX)
• PID: UCS-IOM-2208XP
• 8x SFP+ uplinks for fiber or copper/twinax
• Total bandwidth per chassis 160Gig (80Gig per fabric)
• 32x GE ports to the backplane
• Access to blades can be discrete (pinned) or a port-channel connection
• Uses Woodside ASIC (Similar to Nexus 2232)
• Can operate with 1st Generation hardware
• Non-disruptive upgrade path
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UCS 2208XP I/OM Throughput Increase
1st Generation
2nd Generation
80 Gig
Per fabric
2208XP
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UCS 2208XP I/OM Discrete Mode
Double blade throughput using “Discrete” mode
1st Generation
10Gb per blade
2nd Generation
20Gb per blade
Slot 1
Slot 2
Slot 1
Slot 2
Slot 3
Slot 4
Slot 3
Slot 4
Slot 5
Slot 6
Slot 5
Slot 6
Slot 7
Slot 8
Slot 7
Slot 8
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UCS 2.0 Hardware Introduction
Port-Channel Support
Port-channel Support









Up to 8 * 10 Gb aggregated bandwidth to each fabric in a chassis.
Only supported with combination of 6248 FI and 2208 IOM.
Port-channel is optional, default mode discrete (same as 1.4)
UCSM automatically configures fabric-port-channel based on Discovery
Policy and Hardware Capability
Per chassis connection policy
Discrete to port-channel is per side change to minimize disruption (no
explicit re-ack is required)
Better redundancy. Add/remove PO members will cause traffic redistribution
Supported no of links in a port-channel: 1,2,3,4,5,6,7 or 8
Load Balancing
• Better traffic distribution among IOM uplinks and thus better link utilization
• Load balancing NOT user-configurable, implicitly managed by UCSM
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Chassis Discovery Policies
• Global Discovery Policy
• Per-Chassis Policy
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UCS I/OM Mode Comparison
4 LINKS, DISCREET
slot 1
slot 2
slot 3
slot 4
slot 5
slot 6
slot 7
slot 8
F
E
X
Fabric
Interconnect
Available Bandwidth Per
Blade—10 Gb
(5gb Per Side)
8 LINKS, DISCREET
slot 1
slot 2
slot 3
slot 4
slot 5
slot 6
slot 7
slot 8
F
E
X
Fabric
Interconnect
Available Bandwidth Per
Blade—20 Gb
(10 Gb Per Side)
8 LINKS, PORT-CHANNEL
F
E
X
Fabric
Interconnect
Available Bandwidth Per
Blade—up to 160 Gb
(80 Gb Per Side)
• Statically pinned to
Individual fabric links
• Statically pinned to
Individual fabric links
• Statically pinned to Portchannel
• Deterministic Path
• Deterministic Path
• Shared bandwidth,
better bandwidth
utilization.
• No oversubscription, each
blade gets 20 Gb
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UCS 2.0 Hardware Introduction
UCS VIC1280
UCS VIC 1280
 Dual 4x 10 GE port-channels to a single server slot
 Host connectivity PCIe Gen2 x16
 HW Capable of 256 PCIe devices
• OS restriction apply
 PCIe virtualization OS independent (same as M81KR)
 Single OS driver image for both M81KR and 1280 VIC
 Fabric Failover supported
• 128 VIFs (116 user VIFs) when paired with UCS 6148 FI and 2208 I/OM
• Port-channel configuration done automatically by system
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UCS VIC 1280
Fabric Interconnects
(user configurable)
2208 IOM
2208 IOM
Adaptor Links PC
(system configured)
VIC 1280
UCS Blade Server
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UCS VIC 1280
• No slot based pinning
• Port-Channel to Port-Channel pinning
• No Invalid Link Count
IOM 2208
VIC 1280 adaptor
with DCE links in
Port Channel
Pinned
to PC
Regular adaptor
with single 10G link
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New Hardware Compatibility
Fabric
Interconnect
IOM
Adapter
Connectivity benefits per side
6100
2104
UCS M81 KR
Fabric and host connectivity same as Balboa
1.4(1)
6100
2208
UCS M81 KR
All 8 IOM ports in discrete mode
10 Gb to the host
6100
2104
UCS1280 VIC
4 IOM ports in discrete mode
5 Gb to the host
6100
2208
UCS1280 VIC
All 8 IOM ports in discrete mode
40 Gb to the host
6200
2104
UCS M81 KR
4 IOM ports in discrete mode
5 Gb to the host
6200
2208
UCS M81 KR
All 8 IOM ports can be leveraged in Port-channel
mode
10 Gb to the host
6200
2104
UCS1280 VIC
All 8 IOM ports in discrete mode
10 Gb to the host
6200
2208
UCS1280 VIC
All 8 IOM ports can be leveraged in Port-channel
mode
40 Gb to the host
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Maximum VIFs supported by hardware
Generation 1 hw
Generation 2 hw
Fabric
Interconnect
61xx (Gatos)
512 max vifs
128 max vifs (per switch
port)
62xx (Carmel)
4096 max-vifs
Flexible allocation across
switch ports
IO Module
2104 (Redwood)
Pre-defined vntag offsets
for 8 slots
2208 (Woodside)
Dynamic global vntag
translation
Adaptor
Card
M81KR (Palo)
128 vntag namespace
VIC 1280 (Sereno)
256 vntag namespace
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VIF Allocation Scheme
• Generation 1
Max no. of user vifs (vnics+vhbas) available to a slot (adaptor) = (15*n) – 2
n = no. of acknowledged iom uplinks
• Generation 2
Max no. of user vifs (vnics+vhbas) available to a slot (adaptor) = (63*n) – 2
n = no. of acknowledged iom uplinks
© 2011 Cisco and/or its affiliates. All rights reserved.
29
Polling Question 2
Have you deployed new hardware in your
environment?
a) Yes, UCS 6248 FI
b) Yes, UCS 2208XP I/OM
c) Yes, UCS 6248 FI and UCS 2208XP I/OM
d) Not yet
© 2011 Cisco and/or its affiliates. All rights reserved.
30
Submit Your Questions Now
Use the Q&A panel to submit your questions. Experts will start
responding those
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31
UCS 2.0 Software Introduction
iSCSI Boot Support
iSCSI Boot Support
 Allows stateless model with no FC or FCoE in the environment
 Limited adapter support
• Cisco VIC and VIC-1280 (iBFT only, no iSCSI offloads)
• Broadcom 57711 M51KR (full offload, iSCSI HBA)
 Operating System support
• ESXi 4.1U1
• Windows 2008 R2 and R2SP1
• RHEL 5.6, 6.0 and 6.1
 iSCSI Hardware Offload is not a requirement to support booting, only
supporting iSCSI Boot Firmware Table (iBFT) in the option ROM
 This is the first UCS release represents an iSCSI device in the model as
well as the GUI/CLI/API
 New pools and policies to support iSCSI vNIC attributes in the LAN tab
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iSCSI Service Profiles
 A service profile for iSCSI boot will have subtle changes from a
normal Service Profile. There is now an iSCSI vnic that needs to be
created. Creating a Service Profile iSCSI boot must be done from
the Expert Service Profile creation tool.
 There is an iSCSI adapter policy that needs to be used with the
Service Profile. We will go over the policy and variables and what
they do.
 There is also a new IP pool that can be used to automatically assign
IP addresses to the iSCSI vnics.
 One caveat is an option for a pool of iqn initiator names that can
automatically be assigned to iSCSI intitiators. For now this needs to
be filled in by hand by the user. An enhancement for this is in the
works.
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iSCSI Adapter Policy
 Broadcom
• For installs, Boot to Target must be disabled. This forces the blade to bypass
a bootable disk image and gain access to vMedia/DVD/PXE for installation
• After installation, Boot to Target must be enabled
• You can create an install policy and boot policy and change the SP as needed
• Or set the boot policy and during the initial install, break into Broadcom option
ROM and disable Boot to Target (one time only)
• OS support for TCP off-load
 VIC
• No TCP off-load support
• Boot-to-Target is not used
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UCS 2.0 Software Introduction
Disjointed L2 Support
Disjointed L2 Support
 Non-symmetric VLANs on uplink
 Multiple Layer 2 networks upstream
 Native support in End-Host mode allows simplification of configuration
(no need for Switch mode)
 By default 1.4 behavior is preserved (all VLANs present in all uplinks)
 Hardware independent feature (supported in 6100 and 6200 FI)
 Max of 31 disjointed Layer 2 domains supported
 Overlapping VLAns are not supported
 Per VLAN broadcast/multicast listener
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Disjointed L2 Support
• UCS pre-2.x
Network 1
VLAN 10,20,31,32
BIF 1
BIF 2
Network 1
VLAN 10,20,31,32
BIF 1
BIF 3
FI-A
Network 1
VLAN 10,20,31,32
BIF 2
BIF 3
FI-B
• UCS 2.x
Network 1
VLAN 10,20
BIF 1
BIF 2
Network 2
VLAN 31,32
BIF 3
FI-A
© 2011 Cisco and/or its affiliates. All rights reserved.
BIF 1
Network 3
VLAN 11,12
BIF 2
BIF 3
FI-B
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UCS 2.0 Software Introduction
VMDirectPath with vMotion
VMDirectPath with vMotion
 Data traffic from VM bypasses hypervisor
 Available in vSphere 5.0
 Other names it is known by
• VM-FEX High Performance Mode
• UPT
• VMDirectPath Gen2
 Co-exists with standard mode – Cisco VIC required
 Does not follow the vNetwork distributed switch model –PCI devices
explicitly assigned
 UCS specifically called out in vSphere 5 Networking Guide
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40
Modes of VM-FEX
Standard Mode
High Performance Mode (UPT)
Standard Mode
High Performance Mode
 Each VM gets a dedicated
PCIe device
 Co-exists with Standard
mode
 12%-15% CPU performance
improvement
 Bypasses Hypervisor layer
 Appears as distributed
vNetwork switch to
hypervisor
 vMotion supported
 30% improvement in I/O
performance
 Appears as distributed
vNetwork switch to
hypervisor
 vMotion supported
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41
VMDirectPath Rules of Engagement
 A VM vNIC always connects to VM-FEX in standard mode. If it is
marked for UPT, ESX will attempt to switch it to UPT after few
seconds. ESX will always switch a VM vNIC to standard mode before
disconnecting from VM-FEX. Ex. vMotion.
• During mode switches, some packets are dropped. This is acceptable
because the higher level protocols will retransmit.
• The mode switches are invisible to the guest OS. He does not know if
his vNIC is in standard or UPT mode
• The mode switch between is not a link transition (up/down) on the
network. As said before, it is invisible to the OS.
© 2011 Cisco and/or its affiliates. All rights reserved.
42
UCS 2.0 Software Introduction
RedHat KVM with VM-Fex
RedHat KVM with VM-Fex
 Adapter FEX extends port-extender (Pre-standard 802.1Qbh) architecture
to PCIe bus on hosts – to virtualize the network/cable/NIC construct
 VM-FEX further extends port-extender architecture to virtual machines
 Each VM gets its own PCIe device and a virtual port on the UCS Fabric
Interconnect
 Architecture for VMware has been around since ESX4.0 update 1
 VM-FEX with KVM works with the VIC adapters for hardware-based
switching to VM interfaces
© 2011 Cisco and/or its affiliates. All rights reserved.
44
RedHat KVM with VM-Fex
User
Management
Tools
Guest 1
Guest 2
Application
Application
Guest
OS
virtio-net
Libvirt
Netlink
Socket
Kernel
vhost-net
Macvtap 1
eth0
eth1
Cisco VIC
PF
Port Profile1:
Qos1, vlan1
Guest
OS
virtio-net
Port Profile2:
Qos2, vlan2
vhost-net
Macvtap
Interface
Macvtap 2
eth2
VF1
KVM
…… ethn
……
VF2
Netdev
Interface
VFn
Adapter Port
Switch Port
Veth 1
Port Profile1:
Qos1, vlan1
UCS Switch
© 2011 Cisco and/or its affiliates. All rights reserved.
Veth 2
Port Profile2:
Qos2, vlan2
45
UCS 2.0 Software Introduction
HDD Health Status
HDD Health Status
 New HDD Fault Monitoring provides UCSM with blade-resident HDD
status
 Important because: Previous releases provided no HDD status to
UCSM
 Feature only applies to B200 and B250 blade (LSI 1064E Raid
Controller)
 No support for c-series
 Only error conditions that can be reported by the LSI1064E to the
CIMC are covered
 For each HDD slot only one unidirectional fault signal from the
LSI1064E to the CIMC
© 2011 Cisco and/or its affiliates. All rights reserved.
47
References
 Cisco Support Community
https://supportforums.cisco.com/
 Unified Computing System Community
https://supportforums.cisco.com/community/netpro/datacenter/unified-computing
 Cisco.com pages
http://www.cisco.com/en/US/products/ps10265/index.html
 Support pages:
http://www.cisco.com/en/US/partner/products/ps11544/tsd_products_s
upport_series_home.html
 Designing Secure Multi-Tenancy into Virtualized Data Centers
http://www.cisco.com/en/US/docs/solutions/Enterprise/Data_Center/Vi
rtualization/securecldg.html
© 2011 Cisco and/or its affiliates. All rights reserved.
48
Books
 Cisco Unified Computing System (UCS)
http://www.ciscopress.com/bookstore/product.asp?isbn=1587141930
 I/O Consolidation in the Data Center
http://www.ciscopress.com/bookstore/product.asp?isbn=158705888X
 Network Virtualization
http://www.ciscopress.com/bookstore/product.asp?isbn=1587052482
 Data Center Fundamentals
http://www.ciscopress.com/bookstore/product.asp?isbn=1587050234
© 2011 Cisco and/or its affiliates. All rights reserved.
49
Recommended Reading
© 2011 Cisco and/or its affiliates. All rights reserved.
For Your
Reference
50
Polling Question 3
Are you currently doing stateless boot with
Internet Small Computer Systems Interface
(iSCSI)?
a) Yes
b) No, I am using Fibre Channel
c) No, but planning to migrate
d) No, I have no plans of migrating
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51
Q&A
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