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Cisco UCS Admin Interview Questions and Answers

What is Cisco Unified Computing System?

Cisco Unified Computing System UCS joins physical and virtual computational and system assets into a solitary framework. UCS is a lot of pre-incorporated server farm parts that includes cutting edge servers, connectors, texture interconnects, and extenders that are coordinated under a typical inserted the executive’s framework. This methodology results in far less framework parts than equivalent server farm stages.

Which working frameworks (OS) are upheld on UCS?

UCS sharp edge servers are ensured for following OS:

  • Microsoft Windows Server 2008
  • Microsoft Windows Server 2003 R2
  • Red Hat Enterprise Linux 5.3
  • Red Hat Enterprise Linux 4.8
  • Novell SUSE Linux Enterprise Server 11
  • VMware vSphere 4
  • VMware Infrastructure 3.5 Update 4

Cisco UCS underpins a few hypervisors including VMware ESX, ESXi, Microsoft Hyper-V, Citrix XenServer and others. Visitor working frameworks are constrained to 255 GB of vRAM and 8 virtual processors in vSphere 4.x, moved up to 1 TB of vRAM and 32 vCPUs in vSphere 5.0. Furthermore, the Cisco UCS Virtual Interface Cards fuse VM-FEX innovation that gives virtual machines direct access to the equipment for improved execution and system perceivability.

How to download OS patches and drivers? Does UCS support netflow and what is the most extreme number of VLANs bolstered in UCS?

We ought to download OS patches from the individual sellers. Drivers that are not part of OS and provided by Cisco can be downloaded from cisco.com. No, UCS doesn’t bolster netflow.

As of variant 1.3(1), UCS underpins up to 512 VLANs. Recollect that VLANs 3968 to 4048 are saved and cannot be utilized.

Would i be able to utilize a Nexus 5000 as a UCS 6100 texture interconnect?

No, Nexus 5000 is a universally useful L2 switch and UCS 6100 arrangement is an essential piece of the bound together processing framework. The product that sudden spikes in demand for the UCS 6100 is unique in relation to the Nexus 5000, as the UCS 6100 has both control and the board planes.

What are UCS Blade Servers and Rack Servers?

UCS Blade Servers used to sit inside the UCS body and are overseen utilizing UCS director. UCS Rack Servers used to work autonomously and don’t require the full UCS foundation; anyway they can likewise be coordinated in your current UCS framework.

What is UCS Express?

UCS express is reduced, across the board figuring and systems administration framework focused at branch workplaces. UCS express is expand on the idea of lean branch office which decreases the branch-office framework impression, gear and working expenses, and the executives intricacy. Fundamental segments of UCS express are ISR Generation2 arrangement switch and Services Ready Engine (SRE) multipurpose x86 edge servers. Cisco ISR G2 works as a sharp edge server fenced in area for SRE cutting edge servers, which in themselves run branch office applications like DNS, DHCP, and so forth. The framework accompanies VMware vSphere Hypervisor for virtualization and CIMC Express for cutting edge server the executives.

What are UCS E-arrangement servers?

UCS E-Series Server modules are people to come, power-upgraded, x86, Intel Xeon 64-piece sharp edge servers intended to be conveyed in Cisco Integrated Services Routers Generation 2 (ISR G2). The Cisco UCS E-Series Servers expand the Cisco UCS item portfolio to address the issues of clients who need to send a virtualization-prepared figuring framework in the branch-office condition while keeping up a lean branch-office design.

How are the ports mapped from server to texture interconnecting in UCS?

Port mapping from server to texture interconnect is programmed in UCS. On the off chance that the quantities of connections from texture extender to texture interconnect is just a single then the entirety of the 8 ports is stuck to it. In the event that the quantity of connections from texture extender to texture interconnects is two at that point ports 1,3,5,7 are stuck to initially connection and ports 2,4,6,8 are stuck to second connection. On the off chance that the quantity of connections from texture extender to texture interconnect is four at that point ports 1,5 are stuck to initially interface; port 2,6 are stuck to second connection; port 3,7 are stuck to third connection; and port 4,8 are stuck to fourth connection. Recall that three connection topology isn’t bolstered in UCS.

In the event that I have overlooked UCS secret word, how to recuperate it?

In the event that you have overlooked the secret word, you can set another secret key. Associate with the comfort of UCS 6100 arrangement texture interconnect. Reload the texture interconnect and when it boots up hit ctrl+L or ctrl+shift+R to go to loader brief at that point boot the launch picture; on the off chance that you have two texture interconnects associated in HA, at that point initially reload the subordinate texture interconnect and acquire it loader incite and afterward reload the essential and get it loader instant, after this heap launch picture on essential. Design the administrator secret word utilizing “administrator secret phrase” order by going to config terminal mode. Presently load the framework picture on the texture interconnect or in the event that you have HA load framework picture on the essential texture interconnect. The secret word is presently set to the new secret key you have quite recently arranged; on the off chance that you have HA, at that point now you can stack the launch and framework pictures on the subordinate texture interconnect.

What is the maximum number of user sessions supported on UCS?

The most extreme number of clients
that can be made on UCS is 48, this incorporates any sort of client. The most
extreme number of GUI meetings (getting to UCS director through http) upheld is
256. The most extreme number of CLI meetings (telnet and SSH consolidated)
upheld is 32. Recall that CLI and GUI meetings are treated as independent;
henceforth you can have at the maximum 256 GUI meetings and 32 CLI meetings
simultaneously.

In the event that the texture extender is associated with texture interconnect utilizing 4 connections and one of the connections come up short, what will occur?

The server interfaces that are influenced will either lose availability or flop over to another texture extender, depending if interface is made as a HA interface. UCS M71KR-E/UCS M71KR-Q Converged organize connector has the capacity to flop over Ethernet interfaces if so designed. UCS 82598KR-CI 10 Gigabit Ethernet Adapter doesn’t have this capacity. Fiber Channel interfaces that are stuck to bombing texture extender connection will simply fizzle and their HA ability relies absolutely upon have side multipathing driver. On the off chance that HA/mutilating isn’t designed for Ethernet/Fiber Channel then servers associated with the bombed connection will free network however the other three connections will be functioning of course. Recall that no programmed re-sticking will occur. You can physically re-pin the servers utilizing two connection topology, since three connection topology isn’t upheld.

What are Unified ports?

Bound together ports will be ports on the 6200 arrangement texture interconnect that can be designed to convey either Ethernet or Fiber Channel traffic. These ports are not saved. They can’t be utilized by a Cisco UCS area until you design them.

Is server port and uplink can be arranged on development and fixed module?

Server port can’t be designed on extension module however should be possible on fixed module and coming to some portion of the uplink will be uplink can be arranged on fixed and development module. This is about the arranged on extension and fixed module.

The most effective method to transfer firmware/redesigning introduce in FI?

Gear – >Firmware the board – >Installed firmware- – >Download firmware

1.chassis- – >I/O modules and cutting edges (CIMC,BIOS,Adapters)

2. FI – > bit and framework

3. Rack mount server- – > Servers (CIMC,BIOS,Adapters)

How to design CIMC in C-arrangement and How to download tech support documents?

Reboot the server and press F8 which prompts to the CIMC setup where config nic excess, IP config and secret phrase for CIMC and press F10 for spare and reload the server.

Administrator – >ALL- – >Faults,Events and Audit logs- – >R-click on Tech bolster documents – > select make and download technical support files(UCSM,UCSM-mgmt,Chassis, FEX,Rackserver).

What is Scrub strategy and its sorts? How suspension disclosure done on the FI?

clean arrangement is applied when there is a diassociation in administration profile there ought not be going any progressions made on the equipment and it has DISK and BIOS settings, No for to remain the settings and YES for delete.

Hardware – >Policies- – >global approaches – >Chassis revelation policy(1,2,4,8,max).

What is administration profile layout and its sorts?

Introductory layout and Updating Template

Introductory: no change should be possible subsequent to making or connected or tie to support profile

Refreshing: changes should be possible to refreshing format even it is tie to support profile for any progressions to layout.

Where to design CIMC ip for sharp edges in FI?

1.None – No administration IP address is doled out to the administration profile. The administration IP address is set dependent on the CIMC the executives IP address settings on the server.

2.Static – A static administration IP address is appointed to the administration profile, in light of the data entered here.

3.Pooled – An administration IP address is allocated to the administration profile from the administration IP address pool.

Stage 1 In the Navigation sheet, click the Equipment tab.

Stage 2 On the Equipment tab, extend Equipment > Chassis > Chassis Number > Servers.

Stage 3 Click the server for which you need to arrange an IP address.

Stage 4 In the Work sheet, click the Inventory tab.

Stage 5 Click the CIMC subtab.

Stage 6 In the Actions region, click Create/Modify Static Management IP

What is UUID pool, UUID pool is for edges?

The UUID is a 128-piece number (32 hex digits, 16 gatherings of 2 hex digits). It should extraordinarily recognize a segment around the world. UUID pool UUID is a 128-piece number relegated to each process hub on a system to recognize the figure hub all inclusive.

Pre-requisites for upgrading FI

Audit the Release Notes.

Audit the pertinent Hardware and Software Interoperability Matrix to guarantee the working frameworks on all servers

Back up the setup into an All Configuration reinforcement record.

For a bunch design, check that the high accessibility status of the texture interconnects shows that both are fully operational.

For an independent setup, check that the Overall Status of the texture interconnect is Operable.

Check that the information way is fully operational.

Check that all servers, I/O modules, and connectors are completely useful.

Confirm that the Cisco UCS space does exclude any basic or significant issues.

Check that the sum total of what servers have been found.

What are calling homed and its utilization?

Call Home gives an email-based notice to basic framework arrangements.

The Call Home component can convey ready messages containing data about diagnostics and ecological shortcomings and occasions.

The Call Home component can convey cautions to different beneficiaries, alluded to as Call Home goal profiles.

What is Service profile and its utilization?

An assistance profile is a product meaning of a server and its LAN and SAN organize availability, as such, a help profile characterizes a solitary server and its stockpiling and systems administration qualities. Administration profiles are put away in the Cisco UCS 6100 Series Fabric Interconnects.

What is a VPC and its utilization?

A virtual Port Channel (VPC) permits interfaces that are genuinely associated with two diverse Cisco Nexus™ 5000 Series gadgets to show up as a solitary Port Channel to a third gadget. The third gadget can be a Cisco Nexus 2000 Series Fabric Extender or a switch, server, or some other systems administration gadget.

Instructions to arrange FI?

Stage 1 : Connect to the support port.

Stage 2 : Power on the texture interconnect. You will see the force on individual test messages as the texture interconnect boots.

Stage 3 : At the establishment strategy brief, enter gui.

Stage 4 : If the framework can’t get to a DHCP server, you are incited to enter the accompanying data:

IP address for the administration port on the texture interconnect

Subnet cover for the administration port on the texture interconnect

IP address for the default door
relegated to the texture interconnect

Stage 5 : Copy the web connect from the brief into an upheld internet browser and go to the Cisco UCS Manager GUI dispatch page.

Stage 6 : On the Cisco UCS Manager GUI dispatch page, select Express Setup.

Stage 7 : On the Express Setup page, select Initial Setup and snap Submit.

Stage 8 : In the Cluster and Fabric Setup Area, select the Standalone Mode alternative.

Stage 9 : In the System Setup Area, enter the subtleties of System Name field ,Admin Password field, Confirm Admin Password field, Mgmt IP Address field, Mgmt IP Netmask field.

Stage 10 : Click Submit.

May 17, 2020
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