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StorageTek Tape Libraries Essentials

Question No: 1

Which of the items are reports available from SLC regarding partitioning on an SL500?

  1. Cartridge Cell and Media Summary

  2. Host Connections Summary

  3. Orphaned Cartridge Report

  4. Partition Summary

  5. Partition Details

  6. All of the above

Answer: F

Explanation: Partitions-Reports include: Partitions-Reports-Cartridge Cell and Media Summary Partitions-Reports-Host Connections Summary Partitions-Reports-Orphaned Cartridge Report Partitions-Reports-Partition Details Partitions-Reports-Partition Summary

Reference: StorageTek SL500 Modular Library System, Partition Report Screens

Question No: 2

What ACSLS command would change a cap priority?

  1. set cap priority 5 0, 0, 1

  2. define cap priority 5 0,0,1

  3. change cap priority 5 0, 0, 1

  4. lock cap priority 5 0, 0, 1

Answer: A

Explanation: A: The set cap priority command sets a CAP#39;s automatic selection priority.

Format

set cap priority cap_priority cap_id

Reference: StorageTek ACSLS, Automated Cartridge System Library Software , set cap priority

Question No: 3

Using ACSLS, how would you delete a tape pool?

  1. Set scr off and delete the pool

  2. Remove all data tapes and delete the pool

  3. Delete pool 0 and all empty pools will delete automatically

  4. Remove all volumes from the pool and then delete it

Answer: A

Explanation: Use the delete pool command to delete empty scratch pools. If a pool contains scratch cartridges, you must reassign these cartridges to another

pool before deleting the first pool. If a scratch cartridge is mounted, it becomes a data cartridge but remains in its scratch pool. Use the set scratch off command to reassign the data cartridge to the common pool.

Reference: StorageTek ACSLS, Automated Cartridge System Library Software , delete pool

Question No: 4

Which connectivity option is available only in an SL8500 library complex?

  1. single TCP/IP connectivity

  2. dual TCP/IP connectivity

  3. multi TCP/IP connectivity

Answer: B

Explanation: The SL8500 library uses TCP/IP protocol over an Ethernet physical interface to manage

and communicate with the library. This interface enables both enterprise-level (HSC) and open system platforms (ACSLS) to connect to and communicate with the SL8500.

There are two separate Ethernet connections on the HBC card for host to library communications-Ports 2A and 2B.

  • Port 2A provides the Dual TCP/IP host connection-this is an optional feature for SL8500 libraries..

  • Port 2B provides the primary connection for host communications-this is the

    standard connection for SL8500 libraries.

    Reference: StorageTek StreamLine SL8500, modular library system, Host Interfaces

    Question No: 5

    Where are the messages written when a pool gets below the low water mark?

    1. acsss_event.log

    2. pool_error.log

    3. hardware_event.log

    4. Doesn#39;t write an error message

    Answer: A

    Explanation: low_water_mark

    is the low volume warning threshold. If the scratch cartridge count falls below this threshold, ACSLS logs a warning message in the event log. Valid values are 0 to 231-1. The default is 0.

    Note: The ACSLS event log is the first stop for useful information in the event of problems with your library operation. This log contains information about

    library events, status changes, and errors. All sub-components within ACSLS will report events to the acsss_event.log by sending messages to a process called the event logger. The standard event log, which is automatically created when ACSLS is installed, is contained in the file

    $ACS_HOME/log/acsss_event.log and where $ACS_HOME is usually

    /export/home/ACSSS/.

    Reference: StorageTek ACSLS, Automated Cartridge System Library Software , define pool

    Question No: 6

    On the SL8500, which is the best option when combining workloads that span more than one rail?

    1. using the middle two rails for active enters and ejects

    2. using rails that are adjacent to each other within the same SL8500

    3. using the top rail for extra archival space and any other rail for active data

    4. using the top rail for active enters and ejects and any other rail for archival space

    Answer: C

    Explanation: If you are not able to assign workloads to a single rail, consider:

  • Using rails that are adjacent to each other. This provides a shorter distance for the pass-thru operation.

  • Combining rails vertically rather than horizontally

Reference: StorageTek SL8500 Modular Library System, Best Practises, Dedicating Rails

Question No: 7

The System Detail SLC screen displays health indicators for which four devices in an SL3000?

  1. Rotational and AFM CAPs

  2. Drives

  3. Media

  4. Power supplies

  5. Robot(s)

Answer: A,B,D,E

Explanation: The SL Console screen displays health indicators for each of the following devices:

*Library

  • Rotational and AEM CAPs (A)

  • Drives (B)

  • Power supplies (D)

  • Robot(s) (E)

  • AEM safety doors

Please reference the figure below.

FIGURE 6-1 SL Console Health Status Indicators

Ensurepass 2018 PDF and VCE

Reference: StorageTek SL3000 Modular Library System, User’s Guide , Library and Device Status

Question No: 8

Which four statements are true for an SL8500?

  1. Partitioned LSMs will not recognize other LSMs, within the library unless they are in the same partition.

  2. The elevator operationisunder the control of the library controller when CAP operations are issued.

  3. CAPS can either be shared or dedicated resources for partitions.

  4. All drives, storage slots, and cartridges within a partition are solely owned by that host or host group.

  5. While duplicate VOLSERs are supported by the library, ACSLS does not support duplicate VOLSRs unless they are in different partitions and the duplicate VOLSERs are on different ACLs servers.

Answer: B,C,D,E

Explanation:

B:Elevator operation is under the control of the library controller when CAP operations are issued. The library controller uses the elevators and HandBots to access the entire capacity of the CAPs for enters and ejects without regard for the partitions.

Note: Elevators provide vertical pass-thru operations between rails within the same library. Both elevators are located in the front of the library between the front access doors and the Service Safety Door. Each of the four rails share the two elevators.

C: Partitions share the ownership of the CAPs. That is, if one host/partition has CAP A reserved, a different host/partition can have CAP B reserved, or one host/partition can have both CAPs reserved.

D: Elevators, robots, and CAPs are shared resources and-each partition can fully use shared resources for cartridge movement, enter, and eject operations. All drives, storage slots and cartridges within a partition are solely owned by that host or host group.

E: Duplicate VOLSERs are supported by the library; however, ACSLS and HSC do not, unless:

*The duplicate VOLSERs are in different partitions.

  • With HSC managed partitions, the duplicate VOLSERs are in different control data sets.

  • With ACSLS managed partitions, the duplicate VOLSERs are managed by different ACSLS servers.

Note. volume serial numbers (VOLSERs)

Reference; StorageTek SL8500 Modular Library System, Best Practises,Guidelines

Question No: 9

Which SL500 report displays the current map of physical drive slot relationship to its physical address (iib, module, row) and drive serial number?

  1. Library Utilization

  2. Drive Utilization

  3. Drive Mapping

  4. Drive Distribution

Answer: C

Explanation: The Current Drive Mapping report lists the library internal address and drive serial

number currently assigned to each physical drive slot in the library.

Reference: StorageTek SL500 Modular Library System, Users Guide, Display Current Drive Mappings

Question No: 10

Partitioning allows the SL3000 library to be divided for use by multiple .

  1. Power Supplies

  2. Storage Cells

  3. Hosts

  4. Drives

Answer: C

Explanation: Library resources (cells, drives, and CAPs) are allocated to a partition for exclusive use by that partition. Storage cells, CAPs, and tape drives allocated to a partition can be used only by the hosts assigned to that partition.

Storage cells, CAPs, and drives not allocated to, reserved for or associated with any partition cannot be accessed by any hosts.

Reference: StorageTek SL3000 Modular Library System, User’s Guide, Partitioning Concepts and Features

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