Term
| For what was SCSI designed? |
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Definition
| A way to connect multiple peripherals to the system in a scalable, high-speed manner. |
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Term
| What are the three types of SCSI disk configurations? |
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Definition
-Parallel SCSI
-Serial attached SCSI
-iSCSI |
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Term
| Which SCSI technology is considered the traditional SCSI technology? |
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Definition
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Term
| How are devices attached to the SCSI controller card? |
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Definition
| Via one cable with several connectors for the devices to plug into. |
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Term
| What prevents signal bounce on a SCSI cable? |
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Definition
| Each end of the cable must be terminated with a device that stops signals from being perpetuated. |
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Term
| How are SCSI devices uniquely identified by the system? |
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Definition
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Term
| How many SCSI devices can most controllers support? |
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Definition
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Term
| In what order are Parallel SCSI devices prioritized? |
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Definition
| The highest priority device is 7, followed by 6,5,4,3,2,1,0,15,14,13,12,11,10,9, and 8. |
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Term
| What is LUN and what does it do? |
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Definition
| (Logical Unit Number)Some SCSI devices act as a gateway to other devices, if this is the ease, each device is associated with a LUN. |
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Term
| What is SAS? How many disks can it support and at what speed? |
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Definition
| (Serial Attached SCSI)Up to 65,535 SAS hard disks that can transfer data at up to 768 MB/s. |
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Term
| How is SAS configuration performed? |
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Definition
| It is performed automatically by the SCSI controller, but can be changed manually if you access the SCSI BIOS. |
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Term
| IEEE 1394 devices are treated how by the Linux OS? |
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Definition
| Firewire hard disks are not supported for hosting the Linux OS during installation. |
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Term
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Definition
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Term
| The computers that use the same iSCSI target are said to be what? |
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Definition
| Storage Area Network(SAN) |
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Term
| To implement iSCSI, what must you select at installation? |
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Definition
| Specialized Storage Devices |
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Term
| Why should partitions be spread across several different hard disks? |
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Definition
| To minimize the impact of a hard disk failure. |
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Term
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Definition
-Create a fault-tolerant system
-Speed up access to hard disks
-Combine multiple hard disks into a single volume |
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Term
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Definition
| Redundant array of independent disks |
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Term
| How many basic RAID configurations are there? How are they named? |
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Definition
-7 basic RAID configurations
-0 to level 6 |
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Term
| Is RAID level 0 fault tolerant? |
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Definition
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Term
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Definition
| Consists of two hard disks that the system sees as one large volume. |
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Term
| What is disk striping? What is it's advantage? |
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Definition
| An individual file is divided into sections and saved concurrently on multiple disks, one section per disk.(speeds up disk access) |
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Term
| What happens if one hard disk fails in a RAID level 0 configuration? |
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Definition
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Term
| What is RAID level 1? What does it do? Is it fault tolerant? |
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Definition
| Disk mirroring and provides fault tolerance. This results in two hard disks with identical information. |
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Term
| What is a drawback of RAID level 1? |
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Definition
| It is the cost, because you need to purchase twice the hard disk space. |
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Term
| Why isn't RAID level 2 anymore? |
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Definition
| It was a variant of RAID level 0 nad modern disks do this intrinsically |
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Term
| What level of RAID is disk striping with parity? How many hard disks does it require? |
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Definition
-Minimum of three hard disks
-Level 3 & 5 |
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Term
| What is the advantage of RAID level 4 over RAID level 3? |
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Definition
| Level 4 offers greater access speed than RAID level 3. |
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Term
| How is RAID level 5 commonly referred? |
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Definition
| Disk striping with parity |
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Term
| What are the advantages of RAID level 5? |
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Definition
| The parity information is not stored on a separate drive, but is intermixed with data on the drives that make up the set. |
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Term
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Definition
| Is basically the same as RAID level 5, but adds a second set of parity bits for added fault tolerance. |
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Term
| How will multiple RAID disks appear to Fedora? |
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Definition
| Standard hard disk volumes |
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Term
| What is the most common installation method Linux? |
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Definition
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Term
| How many CDs are required to install Fedora 13? |
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Definition
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Term
| How do you prompt the Fedora installation program to perform a nonstandard installation and prompt you for the location of the installation files? |
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Definition
| Press TAB on your keyboard and add ask method to the end of the boot options line. |
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Term
| What are some of the protocols that can be used to share the Linux installation ISO for a network based installation? |
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Definition
-Network File System(NFS)
-File Transfer Protocol(FTP)
-Hypertext Transfer Protocol(HTTP) |
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Term
| What is the script file called that can be used to automate the installation of Linux? What is the actual file? |
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Definition
-Kickstart file
-Contains the choices you made during the installation program. |
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Term
| What is the automated installation script contain, by default? |
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Definition
| Sections on the system configuration, disk partitioning, and package selection. |
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Term
| In the automated configuration file, what are the lines that start with the "#" character? |
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Definition
| # Symbol is a comment line and is ignored by the installation program. |
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Term
| What is the utility used to make major changes to the kickstart file? What command installs this utility? |
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Definition
-kickstart configurator
-yum install system-config-kickstart |
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Term
| How do you implement the kickstart file for a new installation? |
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Definition
| Once you have a kickstart file, place it on a CD, DVD, USB flash memory drive, or hard disk partition and boot from the Fedora DVD. |
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Term
| What are three categories of installation problems? |
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Definition
-Problems starting the installation
-Problems during installation
-Problems after installation |
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Term
| What are some of the problems that can occur at the start of the installation? |
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Definition
| The boot order in the BIOS is set incorrectly. |
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Term
| What are some of the problems that can occur during installation? |
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Definition
-video card
-plug-and-play support
-RAM errors
-Overclocking
-Boot loader on the hard disk |
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Term
| What are some of the problems that can occur after installation? |
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Definition
-detect hardware properly
-programs were not installed as expected |
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Term
| Where are the installation logs created during installation located? |
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Definition
-/root/install.log
-/root/install.log.syslog |
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Term
| In which directory can you find information to help verify hardware settings? What is special about this directory? |
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Definition
-/proc directory
-It is mounted to a special filesystem contained within RAM that lists system information made available by the Linux kernel. |
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Term
| In what log file and directory can you find the hardware detected at system boot? |
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Definition
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Term
| How are old copies of log files managed? |
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Definition
| The system archives old copies of the log files in the /var/log directory and appends the date to them. |
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Term
| What is "System Rescue"? How is it accessed? |
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Definition
| A small bootable Linux kernel and virtual filesystem that you can load into RAM and issued to fix problems. Boot from the Fedora DVD and select Rescue installed system at the initial welcome screen. |
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Term
| In System Rescue, what will the command chroot /mnt/sysimage do? |
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Definition
| Force your system rescue Linux kernel to set the /(root) directory of System Rescue to /mnt/sysimage in order to make it easier to navigate your /(root) filesystem on the hard disk. |
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