IBM z Systems Technical Support V7 試験
Question No : 1
Which server data is required to size the number of IFLs required to consolidate x86 servers into a z13?
The first step is to determine the expected consolidation ratio for a given workload type. This allows us to answer the question “What is the theoretical maximum number of servers that can be consolidated?”
The answer to this question is a function of three factors:
References: Practical Migration to Linux on System z (October 2009), page 17
Question No : 2
An auditor at a customer site has noted that there is no antivirus software running on the HMC, contrary to the security policy.
What security mechanism is the solution to this audit finding?
IBM refers to the new HMC as a "closed platform" which does not allow the user to install software or access the command line interface to increase security and stability.
Note: A Hardware Management Console (HMC) is an appliance used to manage Power Systems servers. In particular, it may be used to create or change virtual machines (LPARs), including dynamically altering the hardware assigned to an LPAR (add and remove) without rebooting the operating system running in the LPAR.
Question No : 3
In a Parallel Sysplex environment, which capability can provide transparent failover in the event of a coupling facility failure?
A coupling facility structure user request for non-volatility and failure-isolation from connectors is not satisfied.
An allocated coupling facility structure was connected to with IXLCONN NONVOLREQ=YES, requesting non-volatility and failure-isolation from connectors. The structure is not in a coupling facility with non-volatile storage, or a connector to the structure is not failure-isolated from the structure instances.
System programmer response
If all coupling facilities containing the structure are volatile, move a structure instance to a non-volatile coupling facility that provides failure-isolation from connectors, or accomplish the same result by changing a coupling facility to be non-volatile. Only one structure instance of a duplex structure needs to be in a non-volatile coupling facility for the structure to be considered non-volatile.
Question No : 4
Which LinuxONE system supports up to 141 engines?
The Emperor can have up to 141 cores, 10 terabytes of shared memory, and 640 dedicated I/O (input/output) processors.
Question No : 5
A customer has failed an audit with a finding that too many people appear to have inappropriate access to the z13 Hardware Management Console (HMC).
Which first step should they take to rectify this situation?
An HMC is an inexpensive custom Intel appliance (stand-alone or 1U rack) with a serial (RS232) card (connected to POWER4 servers) or an Ethernet card (connected to service processors of POWER5, POWER6, and POWER7 server
Question No : 6
A customer is upgrading a zEC12 to a z13 and has FICON Express8 channels installed to support their 2Gb I/O devices, which must also be connected to the z13. They are migrating to the z13 to take advantage of larger memory configurations supported on the z13 for DB2.
In order to take advantage of LPARs which can support memory sizes greater than 2TB, what must be configured on this upgrade?
The FICON Express8S feature is exclusively in the PCIe I/O drawer. Each of the two independent ports is capable of 2 Gbps, 4 Gbps, or 8 Gbps. The link speed depends on the capability of the attached switch or device. The link speed is auto-negotiated, point-to-point, and is transparent to users and applications.
Question No : 7
A customer has decided to move all of their Linux workloads from their current x86 platforms to a recently purchased IBM LinuxONE Rockhopper. To simplify the migration process, the customer will continue using KVM as the hypervisor. The x86 administrator has no experience with the LinuxONE Rockhopper, but is expected to create and provision new LPARs to support the migrating Linux workload.
t tool could the x86 administrator use to simplify the creation of new partitions and the configuration of I/O adapters?
A new administrative mode, IBM Dynamic Partition Manager (DPM), is introduced for Linux only systems for IBM z13, IBM z13sTM, IBM LinuxONE Emperor (Emperor), and IBM LinuxONE Rockhopper (Rockhopper).
Question No : 8
A customer has just installed a new z13s. They need to obtain the required configuration file for channel-path identifier (CHPID) mapping to the new system.
Where can a customer access this information directly?
The eConfig tool is available from an IBM representative. Use it to build new configurations or upgrades of existing configurations and to maintain installed features. eConfig also produces a PCHID report.
References: IBM Z Connectivity Handbook (July 2017), page 29
Question No : 9
Which type of coupling link allows two z13 machines to connect at the maximum distance apart?
The HCA-O LR fanout supports InfiniBand 1x optical links that offer long-distance coupling links. With direct connection, the supported unrepeated distance3 is up to 10 km (6.2 miles), and up to 100 km (62 miles) with z Systems qualified DWDM.
Question No : 10
A customer has recently upgraded to a z13 processor. As part of the migration process, the LPAR image profiles ware copied form the old processor to the z13.
After the upgrade, transactions on the production z/OS environment continue to run well; however, in the development z/OS environment, transactions are now timing out.
What tool should the technical specialist use to help the customer resolve this problem?
IBM's Processor Capacity Reference (zPCR) is a PC-based productivity tool under Windows. It is designed to provide capacity planning insight for IBM System z processors running LPAR configurations with various workload environments under z/OS, z/VM, and Linux. Capacity results are based on IBM's LSPR data supporting all IBM System z processors.
Question No : 11
A customer is experiencing z/OS performance problems on their z13 while the system is taking a memory dump. Which chargeable z Systems feature could provide relief for this problem?
Typical simultaneous multithreading (SMT) implementations allow workloads from different control programs to use a compute core concurrently, but with variable core capacity gains and thread execution slowdowns. The new IBM z13 platform implements SMT differently. At any point in time, a single control program manages the entire core, giving each workload more repeatable core capacity for processing.
Question No : 12
A z Systems Client Technical Specialist has a customer running z/OS 1.12 on a zEC12 machine. They want to get pricing for an upgrade to z/OS 2.2 for their newly purchased z13 machine.
Which of the following can provide pricing for the z/OS operating system?
Question No : 13
Which IBM z Systems technology is the foundation of the IBM Bluemix-based Blockchain service High Security Business Network (HSBN)?
Blockchain is based on the industry standard Open Linux Foundation Hyperledger.
Question No : 14
A client has ordered a z13s that will soon be shipping form the IBM manufacturing facility to their new data center location. Due to construction delays, the box will not be physically installed for 90 days after shipment.
Based on the planned installation date, when will the standard warranty period for the z13s begin?
An IBM part or feature installed during the initial installation of an IBM machine is subject to a full warranty effective on the date of installation of the machine.
Question No : 15
The client is upgrading their zEC12 to a z13 with FICON Express 16S channels. They are not planning to make any changes to the SAN environment nor the attached OEM storage devices.
What should the Technical Sales Specialist recommend, if anything, to ensure that this will be a supported environment?