# SOME DESCRIPTIVE TITLE.
# 
msgid ""
msgstr ""
"Project-Id-Version: Fedora Virtualization Guide\n"
"Report-Msgid-Bugs-To: http://bugs.kde.org\n"
"POT-Creation-Date: 2009-09-23 16:39+0000\n"
"PO-Revision-Date: 2011-08-21 04:23+0000\n"
"Last-Translator: FULL NAME <EMAIL@ADDRESS>\n"
"Language-Team: Vietnamese (Viet Nam) (http://www.transifex.net/projects/p/fedora/team/vi_VN/)\n"
"MIME-Version: 1.0\n"
"Content-Type: text/plain; charset=UTF-8\n"
"Content-Transfer-Encoding: 8bit\n"
"Language: vi_VN\n"
"Plural-Forms: nplurals=1; plural=0\n"

#. Tag: title
#: Block_Devices.xml:6
#, no-c-format
msgid "Virtualized block devices"
msgstr ""

#. Tag: para
#: Block_Devices.xml:7
#, no-c-format
msgid ""
"This chapter covers installing and configuring block devices in virtualized "
"guests. The term block devices refers to various forms of storage devices."
msgstr ""

#. Tag: title
#: Block_Devices.xml:95
#, no-c-format
msgid "Creating a virtualized floppy disk controller"
msgstr ""

#. Tag: para
#: Block_Devices.xml:96
#, no-c-format
msgid ""
"Floppy disk controllers are required for a number of older operating "
"systems, especially for installing drivers. Presently, physical floppy disk "
"devices cannot be accessed from virtualized guests. However, creating and "
"accessing floppy disk images from virtualized floppy drives is supported. "
"This section covers creating a virtualized floppy device."
msgstr ""

#. Tag: para
#: Block_Devices.xml:99
#, no-c-format
msgid ""
"An image file of a floppy disk is required. Create floppy disk image files "
"with the <command>dd</command> command. Replace /dev/fd0 with the name of a "
"floppy device and name the disk appropriately."
msgstr ""

#. Tag: screen
#: Block_Devices.xml:101
#, no-c-format
msgid "# dd if=/dev/fd0 of=~/legacydrivers.img"
msgstr ""

#. Tag: title
#: Block_Devices.xml:104
#, no-c-format
msgid "Para-virtualized drivers note"
msgstr ""

#. Tag: para
#: Block_Devices.xml:105
#, no-c-format
msgid ""
"The para-virtualized drivers can map physical floppy devices to fully "
"virtualized guests. For more information on using para-virtualized drivers "
"read <xref linkend=\"chap-Virtualization-Xen_Para_virtualized_Drivers\"/>."
msgstr ""

#. Tag: para
#: Block_Devices.xml:109
#, no-c-format
msgid ""
"This example uses a guest created with <command>virt-manager</command> "
"running a fully virtualized Red Hat Enterprise Linux installation with an "
"image located in <filename>/var/lib/libvirt/images/rhel5FV.img</filename>. "
"The Xen hypervisor is used in the example."
msgstr ""

#. Tag: para
#: Block_Devices.xml:114
#, no-c-format
msgid ""
"Create the XML configuration file for your guest image using the "
"<command>virsh</command> command on a running guest."
msgstr ""

#. Tag: screen
#: Block_Devices.xml:118
#, no-c-format
msgid "# virsh dumpxml rhel5FV &gt; rhel5FV.xml"
msgstr ""

#. Tag: para
#: Block_Devices.xml:119
#, no-c-format
msgid ""
"This saves the configuration settings as an XML file which can be edited to "
"customize the operations and devices used by the guest. For more information"
" on using the virsh XML configuration files, refer to <xref linkend=\"chap-"
"Virtualization-Creating_custom_libvirt_scripts\"/>."
msgstr ""

#. Tag: para
#: Block_Devices.xml:124
#, no-c-format
msgid "Create a floppy disk image for the guest."
msgstr ""

#. Tag: screen
#: Block_Devices.xml:128
#, no-c-format
msgid ""
"# dd if=/dev/zero of=/var/lib/libvirt/images/rhel5FV-floppy.img bs=512 "
"count=2880"
msgstr ""

#. Tag: para
#: Block_Devices.xml:131
#, no-c-format
msgid ""
"Add the content below, changing where appropriate, to your guest&#39;s "
"configuration XML file. This example creates a guest with a floppy device as"
" a file based virtual device."
msgstr ""

#. Tag: screen
#: Block_Devices.xml:135
#, no-c-format
msgid ""
"&lt;disk type=&#39;file&#39; device=&#39;floppy&#39;&gt;\n"
"        &lt;source file=&#39;/var/lib/libvirt/images/rhel5FV-floppy.img&#39;/&gt;\n"
"        &lt;target dev=&#39;fda&#39;/&gt;\n"
"&lt;/disk&gt;"
msgstr ""

#. Tag: para
#: Block_Devices.xml:138
#, no-c-format
msgid "Stop the guest."
msgstr ""

#. Tag: screen
#: Block_Devices.xml:142
#, no-c-format
msgid "# virsh stop rhel5FV"
msgstr ""

#. Tag: para
#: Block_Devices.xml:145
#, no-c-format
msgid "Restart the guest using the XML configuration file."
msgstr ""

#. Tag: screen
#: Block_Devices.xml:149
#, no-c-format
msgid "# virsh create rhel5FV.xml"
msgstr ""

#. Tag: para
#: Block_Devices.xml:153
#, no-c-format
msgid ""
"The floppy device is now available in the guest and stored as an image file "
"on the host."
msgstr ""

#. Tag: title
#: Block_Devices.xml:159
#, no-c-format
msgid "Adding storage devices to guests"
msgstr ""

#. Tag: para
#: Block_Devices.xml:160
#, no-c-format
msgid ""
"This section covers adding storage devices to to virtual guest machine. "
"Additional storage can only be added after guests are created. The supported"
" storage devices and protocol include:"
msgstr ""

#. Tag: para
#: Block_Devices.xml:165
#, no-c-format
msgid "local hard drive partitions,"
msgstr ""

#. Tag: para
#: Block_Devices.xml:170
#, no-c-format
msgid "logical volumes,"
msgstr ""

#. Tag: para
#: Block_Devices.xml:175
#, no-c-format
msgid "Fibre Channel or iSCSI directly connected to the host."
msgstr ""

#. Tag: para
#: Block_Devices.xml:180
#, no-c-format
msgid "File containers residing in a file system on the host."
msgstr ""

#. Tag: para
#: Block_Devices.xml:185
#, no-c-format
msgid ""
"<application>NFS</application> file systems mounted directly by the virtual "
"machine."
msgstr ""

#. Tag: para
#: Block_Devices.xml:190
#, no-c-format
msgid "iSCSI storage directly accessed by the guest."
msgstr ""

#. Tag: para
#: Block_Devices.xml:195
#, no-c-format
msgid "Cluster File Systems (<application>GFS</application>)."
msgstr ""

#. Tag: title
#: Block_Devices.xml:201
#, no-c-format
msgid "Adding file based storage to a guest"
msgstr ""

#. Tag: para
#: Block_Devices.xml:202
#, no-c-format
msgid ""
"File-based storage or file-based containers are files on the hosts file "
"system which act as virtualized hard drives for virtualized guests. To add a"
" file-based container perform the following steps:"
msgstr ""

#. Tag: para
#: Block_Devices.xml:208
#, no-c-format
msgid ""
"Create an empty container file or using an existing file container (such as "
"an ISO file)."
msgstr ""

#. Tag: para
#: Block_Devices.xml:213
#, no-c-format
msgid ""
"Create a sparse file using the <command>dd</command> command. Sparse files "
"are not recommended due to data integrity and performance issues. Sparse "
"files are created much faster and can used for testing but should not be "
"used in production environments."
msgstr ""

#. Tag: screen
#: Block_Devices.xml:217
#, no-c-format
msgid ""
"# dd if=/dev/zero of=/var/lib/libvirt/images/FileName.img bs=1M seek=4096 "
"count=0"
msgstr ""

#. Tag: para
#: Block_Devices.xml:220
#, no-c-format
msgid ""
"Non-sparse, pre-allocated files are recommended for file based storage "
"containers. Create a non-sparse file, execute:"
msgstr ""

#. Tag: screen
#: Block_Devices.xml:224
#, no-c-format
msgid ""
"# dd if=/dev/zero of=/var/lib/libvirt/images/FileName.img bs=1M count=4096"
msgstr ""

#. Tag: para
#: Block_Devices.xml:227
#, no-c-format
msgid ""
"Both commands create a 400MB file which can be used as additional storage "
"for a virtualized guest."
msgstr ""

#. Tag: para
#: Block_Devices.xml:232
#, no-c-format
msgid ""
"Dump the configuration for the guest. In this example the guest is called "
"<replaceable>Guest1</replaceable> and the file is saved in the users home "
"directory."
msgstr ""

#. Tag: screen
#: Block_Devices.xml:236
#, no-c-format
msgid ""
"# virsh dumpxml <replaceable>Guest1</replaceable> &gt; "
"~/<replaceable>Guest1</replaceable>.xml"
msgstr ""

#. Tag: para
#: Block_Devices.xml:239
#, no-c-format
msgid ""
"Open the configuration file (<replaceable>Guest1.xml</replaceable> in this "
"example) in a text editor. Find the entries starting with "
"\"<computeroutput>disk=</computeroutput>\". This entry resembles:"
msgstr ""

#. Tag: screen
#: Block_Devices.xml:243
#, no-c-format
msgid ""
"&gt;disk type=&#39;file&#39; device=&#39;disk&#39;&lt;\n"
"        &gt;driver name=&#39;tap&#39; type=&#39;aio&#39;/&lt;\n"
"        &gt;source file=&#39;/var/lib/libvirt/images/Guest1.img&#39;/&lt;\n"
"        &gt;target dev=&#39;xvda&#39;/&lt;\n"
"&gt;/disk&lt;"
msgstr ""

#. Tag: para
#: Block_Devices.xml:246
#, no-c-format
msgid ""
"Add the additional storage by modifying the end of "
"<computeroutput>disk=</computeroutput> entry. Ensure you specify a device "
"name for the virtual block device which is not used already in the "
"configuration file. The following example entry adds file, named "
"<filename>FileName.img</filename>, as a file based storage container:"
msgstr ""

#. Tag: screen
#: Block_Devices.xml:250
#, no-c-format
msgid ""
"&gt;disk type=&#39;file&#39; device=&#39;disk&#39;&lt;\n"
"        &gt;driver name=&#39;tap&#39; type=&#39;aio&#39;/&lt;\n"
"        &gt;source file=&#39;/var/lib/libvirt/images/Guest1.img&#39;/&lt;\n"
"        &gt;target dev=&#39;xvda&#39;/&lt;\n"
"&gt;/disk&lt;\n"
"&gt;disk type=&#39;file&#39; device=&#39;disk&#39;&lt;\n"
"        &gt;driver name=&#39;tap&#39; type=&#39;aio&#39;/&lt;\n"
"        &gt;source file=&#39;/var/lib/libvirt/images/FileName.img&#39;/&lt;\n"
"        &gt;target dev=&#39;hda&#39;/&lt;\n"
"&gt;/disk&lt;"
msgstr ""

#. Tag: para
#: Block_Devices.xml:253
#, no-c-format
msgid "Restart the guest from the updated configuration file."
msgstr ""

#. Tag: screen
#: Block_Devices.xml:257
#, no-c-format
msgid "# virsh create Guest1.xml"
msgstr ""

#. Tag: para
#: Block_Devices.xml:260
#, no-c-format
msgid ""
"The following steps are Linux guest specific. Other operating systems handle"
" new storage devices in different ways. For non Linux systems refer to your "
"guest operating systems documentation."
msgstr ""

#. Tag: para
#: Block_Devices.xml:263
#, no-c-format
msgid ""
"The guest now uses the file <filename>FileName.img</filename> as the device "
"called <filename>/dev/hdb</filename>. This device requires formatting from "
"the guest. On the guest, partition the device into one primary partition for"
" the entire device then format the device."
msgstr ""

#. Tag: para
#: Block_Devices.xml:268
#, no-c-format
msgid "Press <parameter>n</parameter> for a new partition."
msgstr ""

#. Tag: screen
#: Block_Devices.xml:272
#, no-c-format
msgid ""
"# fdisk /dev/hdb\n"
"Command (m for help):"
msgstr ""

#. Tag: para
#: Block_Devices.xml:275
#, no-c-format
msgid "Press <parameter>p</parameter> for a primary partition."
msgstr ""

#. Tag: screen
#: Block_Devices.xml:279
#, no-c-format
msgid ""
"Command action\n"
"   e   extended\n"
"   p   primary partition (1-4)"
msgstr ""

#. Tag: para
#: Block_Devices.xml:282
#, no-c-format
msgid ""
"Choose an available partition number. In this example the first partition is"
" chosen by entering <parameter>1</parameter>."
msgstr ""

#. Tag: screen
#: Block_Devices.xml:286 Block_Devices.xml:314
#, no-c-format
msgid "Partition number (1-4): <parameter>1</parameter>"
msgstr ""

#. Tag: para
#: Block_Devices.xml:289
#, no-c-format
msgid ""
"Enter the default first cylinder by pressing <parameter>Enter</parameter>."
msgstr ""

#. Tag: screen
#: Block_Devices.xml:293
#, no-c-format
msgid "First cylinder (1-400, default 1):"
msgstr ""

#. Tag: para
#: Block_Devices.xml:296
#, no-c-format
msgid ""
"Select the size of the partition. In this example the entire disk is "
"allocated by pressing <parameter>Enter</parameter>."
msgstr ""

#. Tag: screen
#: Block_Devices.xml:300
#, no-c-format
msgid "Last cylinder or +size or +sizeM or +sizeK (2-400, default 400):"
msgstr ""

#. Tag: para
#: Block_Devices.xml:303
#, no-c-format
msgid "Set the type of partition by pressing <parameter>t</parameter>."
msgstr ""

#. Tag: screen
#: Block_Devices.xml:307
#, no-c-format
msgid "Command (m for help): <parameter>t</parameter>"
msgstr ""

#. Tag: para
#: Block_Devices.xml:310
#, no-c-format
msgid ""
"Choose the partition you created in the previous steps. In this example "
"it&#39;s partition <parameter>1</parameter>."
msgstr ""

#. Tag: para
#: Block_Devices.xml:317
#, no-c-format
msgid "Enter <parameter>83</parameter> for a linux partition."
msgstr ""

#. Tag: screen
#: Block_Devices.xml:321
#, no-c-format
msgid "Hex code (type L to list codes): <parameter>83</parameter>"
msgstr ""

#. Tag: para
#: Block_Devices.xml:324
#, no-c-format
msgid "write changes to disk and quit."
msgstr ""

#. Tag: screen
#: Block_Devices.xml:328
#, no-c-format
msgid ""
"Command (m for help): <parameter>w</parameter> \n"
"Command (m for help): <parameter>q</parameter>"
msgstr ""

#. Tag: para
#: Block_Devices.xml:331
#, no-c-format
msgid ""
"Format the new partition with the <systemitem "
"class=\"filesystem\">ext3</systemitem> file system."
msgstr ""

#. Tag: screen
#: Block_Devices.xml:335
#, no-c-format
msgid "# mke2fs -j /dev/hdb"
msgstr ""

#. Tag: para
#: Block_Devices.xml:340
#, no-c-format
msgid "Mount the disk on the guest."
msgstr ""

#. Tag: screen
#: Block_Devices.xml:342
#, no-c-format
msgid "# mount /dev/hdb1 <replaceable>/myfiles</replaceable>"
msgstr ""

#. Tag: para
#: Block_Devices.xml:347
#, no-c-format
msgid "The guest now has an additional virtualized file-based storage device."
msgstr ""

#. Tag: title
#: Block_Devices.xml:351
#, no-c-format
msgid "Adding hard drives and other block devices to a guest"
msgstr ""

#. Tag: para
#: Block_Devices.xml:352
#, no-c-format
msgid ""
"System administrators use additional hard drives for to provide more storage"
" space or to separate system data from user data. This procedure, <xref "
"linkend=\"proc-Virtualization-Adding_storage_devices_to_guests-"
"Adding_physical_block_devices_to_virtualized_guests\"/>, describes how to "
"add a hard drive on the host to a virtualized guest."
msgstr ""

#. Tag: para
#: Block_Devices.xml:356
#, no-c-format
msgid ""
"The procedure works for all physical block devices, this includes CD-ROM, "
"DVD and floppy devices."
msgstr ""

#. Tag: title
#: Block_Devices.xml:360
#, no-c-format
msgid "Adding physical block devices to virtualized guests"
msgstr ""

#. Tag: para
#: Block_Devices.xml:362
#, no-c-format
msgid ""
"Physically attach the hard disk device to the host. Configure the host if "
"the drive is not accessible by default."
msgstr ""

#. Tag: para
#: Block_Devices.xml:367
#, no-c-format
msgid ""
"Configure the device with <command>multipath</command> and persistence on "
"the host if required."
msgstr ""

#. Tag: para
#: Block_Devices.xml:372
#, no-c-format
msgid ""
"Use the <command>virsh attach</command> command. Replace: "
"<replaceable>myguest</replaceable> with your guest&#39;s name, "
"<parameter>/dev/hdb1</parameter> with the device to add, and "
"<replaceable>hdc</replaceable> with the location for the device on the "
"guest. The <replaceable>hdc</replaceable> must be an unused device name. Use"
" the <replaceable>hd*</replaceable> notation for Windows guests as well, the"
" guest will recognize the device correctly."
msgstr ""

#. Tag: para
#: Block_Devices.xml:375
#, no-c-format
msgid ""
"Append the <parameter>--type hdd</parameter> parameter to the command for "
"CD-ROM or DVD devices."
msgstr ""

#. Tag: para
#: Block_Devices.xml:378
#, no-c-format
msgid ""
"Append the <parameter>--type floppy</parameter> parameter to the command for"
" floppy devices."
msgstr ""

#. Tag: screen
#: Block_Devices.xml:382
#, no-c-format
msgid ""
"# virsh attach-disk <replaceable>myguest</replaceable> "
"<parameter>/dev/hdb1</parameter> <replaceable>hdc</replaceable> --driver tap"
" --mode readonly"
msgstr ""

#. Tag: para
#: Block_Devices.xml:385
#, no-c-format
msgid ""
"The guest now has a new hard disk device called "
"<filename>/dev/hdb</filename> on Linux or <filename>D: drive</filename>, or "
"similar, on Windows. This device may require formatting."
msgstr ""

#. Tag: remark
#: Block_Devices.xml:391
#, no-c-format
msgid "missing step"
msgstr ""

#. Tag: remark
#: Block_Devices.xml:392
#, no-c-format
msgid "dynamic adding paragraph"
msgstr ""

#. Tag: title
#: Block_Devices.xml:396
#, no-c-format
msgid "Configuring persistent storage in Red Hat Enterprise Linux 5"
msgstr ""

#. Tag: para
#: Block_Devices.xml:397
#, no-c-format
msgid ""
"This section is for systems with external or networked storage; that is, "
"Fibre Channel or iSCSI based storage devices. It is recommended that those "
"systems have persistent device names configured for your hosts. This assists"
" live migration as well as providing consistent device names and storage for"
" multiple virtualized systems."
msgstr ""

#. Tag: para
#: Block_Devices.xml:400
#, no-c-format
msgid ""
"Universally Unique Identifiers(UUIDs) are a standardized method for "
"identifying computers and devices in distributed computing environments. "
"This sections uses UUIDs to identify iSCSI or Fibre Channel LUNs. UUIDs "
"persist after restarts, disconnection and device swaps. The UUID is similar "
"to a label on the device."
msgstr ""

#. Tag: para
#: Block_Devices.xml:403
#, no-c-format
msgid ""
"Systems which are not running <command>multipath</command> must use <xref "
"linkend=\"form-Virtualization-"
"Configuring_persistent_storage_in_Red_Hat_Enterprise_Linux_5-Single_path_configuration\"/>."
" Systems running <command>multipath</command> can use <xref linkend=\"form-"
"Virtualization-"
"Configuring_persistent_storage_in_Red_Hat_Enterprise_Linux_5-Multiple_path_configuration\"/>."
msgstr ""

#. Tag: title
#: Block_Devices.xml:407
#, no-c-format
msgid "Single path configuration"
msgstr ""

#. Tag: para
#: Block_Devices.xml:408
#, no-c-format
msgid ""
"This procedure implements <firstterm linkend=\"glos-Virtualization-"
"LUN\">LUN</firstterm> device persistence using <command>udev</command>. Only"
" use this procedure for hosts which are not using "
"<command>multipath</command>."
msgstr ""

#. Tag: para
#: Block_Devices.xml:414
#, no-c-format
msgid "Edit the <filename>/etc/scsi_id.config</filename> file."
msgstr ""

#. Tag: para
#: Block_Devices.xml:419
#, no-c-format
msgid "Ensure the <command>options=-b</command> is line commented out."
msgstr ""

#. Tag: screen
#: Block_Devices.xml:421
#, no-c-format
msgid "# options=-b"
msgstr ""

#. Tag: para
#: Block_Devices.xml:425
#, no-c-format
msgid "Add the following line:"
msgstr ""

#. Tag: screen
#: Block_Devices.xml:429
#, no-c-format
msgid "options=-g"
msgstr ""

#. Tag: para
#: Block_Devices.xml:430
#, no-c-format
msgid ""
"This option configures <command>udev</command> to assume all attached SCSI "
"devices return a UUID."
msgstr ""

#. Tag: para
#: Block_Devices.xml:437
#, no-c-format
msgid ""
"To display the UUID for a given device run the <command>scsi_id -g -s "
"/block/sd*</command> command. For example:"
msgstr ""

#. Tag: screen
#: Block_Devices.xml:441
#, no-c-format
msgid ""
"# scsi_id -g -s /block/sd*\n"
"3600a0b800013275100000015427b625e"
msgstr ""

#. Tag: para
#: Block_Devices.xml:442
#, no-c-format
msgid ""
"The output may vary from the example above. The output displays the UUID of "
"the device <systemitem>/dev/sdc</systemitem>."
msgstr ""

#. Tag: para
#: Block_Devices.xml:447
#, no-c-format
msgid ""
"Verify the UUID output by the <command>scsi_id -g -s /block/sd*</command> "
"command is identical from computer which accesses the device."
msgstr ""

#. Tag: para
#: Block_Devices.xml:452
#, no-c-format
msgid ""
"Create a rule to name the device. Create a file named "
"<filename>20-names.rules</filename> in the "
"<filename>/etc/udev/rules.d</filename> directory. Add new rules to this "
"file. All rules are added to the same file using the same format. Rules "
"follow this format:"
msgstr ""

#. Tag: screen
#: Block_Devices.xml:456
#, no-c-format
msgid ""
"KERNEL=\"sd*\", BUS=\"scsi\", PROGRAM=\"/sbin/scsi_id -g -s\", "
"RESULT=<replaceable>UUID</replaceable>, "
"NAME=<replaceable>devicename</replaceable>"
msgstr ""

#. Tag: para
#: Block_Devices.xml:457
#, no-c-format
msgid ""
"Replace <replaceable>UUID</replaceable> and "
"<replaceable>devicename</replaceable> with the UUID retrieved above, and a "
"name for the device. This is a rule for the example above:"
msgstr ""

#. Tag: screen
#: Block_Devices.xml:461
#, no-c-format
msgid ""
"KERNEL=\"sd*\", BUS=\"scsi\", PROGRAM=\"/sbin/scsi_id -g -s\", "
"RESULT=\"3600a0b800013275100000015427b625e\", NAME=\"rack4row16\""
msgstr ""

#. Tag: para
#: Block_Devices.xml:462
#, no-c-format
msgid ""
"The <command>udev</command> daemon now searches all devices named "
"<filename>/dev/sd*</filename> for the UUID in the rule. Once a matching "
"device is connected to the system the device is assigned the name from the "
"rule. In the a device with a UUID of 3600a0b800013275100000015427b625e would"
" appear as <filename>/dev/rack4row16</filename>."
msgstr ""

#. Tag: para
#: Block_Devices.xml:467
#, no-c-format
msgid "Append this line to <filename>/etc/rc.local</filename>:"
msgstr ""

#. Tag: screen
#: Block_Devices.xml:471 Block_Devices.xml:478
#, no-c-format
msgid "/sbin/start_udev"
msgstr ""

#. Tag: para
#: Block_Devices.xml:474
#, no-c-format
msgid ""
"Copy the changes in the <filename>/etc/scsi_id.config</filename>, "
"<filename>/etc/udev/rules.d/20-names.rules</filename>, and "
"<filename>/etc/rc.local</filename> files to all relevant hosts."
msgstr ""

#. Tag: para
#: Block_Devices.xml:482
#, no-c-format
msgid ""
"Networked storage devices with configured rules now have persistent names on"
" all hosts where the files were updated This means you can migrate guests "
"between hosts using the shared storage and the guests can access the storage"
" devices in their configuration files."
msgstr ""

#. Tag: title
#: Block_Devices.xml:486
#, no-c-format
msgid "Multiple path configuration"
msgstr ""

#. Tag: para
#: Block_Devices.xml:487
#, no-c-format
msgid ""
"The <command>multipath</command> package is used for systems with more than "
"one physical path from the computer to storage devices. "
"<command>multipath</command> provides fault tolerance, fail-over and "
"enhanced performance for network storage devices attached to Red Hat "
"Enterprise Linux systems."
msgstr ""

#. Tag: para
#: Block_Devices.xml:491
#, no-c-format
msgid ""
"Implementing LUN persistence in a <command>multipath</command> environment "
"requires defined alias names for your multipath devices. Each storage device"
" has a UUID which acts as a key for the aliased names. Identify a "
"device&#39;s UUID using the <command>scsi_id</command> command."
msgstr ""

#. Tag: screen
#: Block_Devices.xml:495
#, no-c-format
msgid "# scsi_id -g -s /block/sdc"
msgstr ""

#. Tag: para
#: Block_Devices.xml:496
#, no-c-format
msgid ""
"The multipath devices will be created in the <filename>/dev/mpath</filename>"
" directory. In the example below 4 devices are defined in "
"<filename>/etc/multipath.conf</filename>:"
msgstr ""

#. Tag: screen
#: Block_Devices.xml:500
#, no-c-format
msgid ""
"multipaths { \n"
"        multipath { \n"
"        wwid                3600805f30015987000000000768a0019 \n"
"        alias                oramp1 \n"
"        } \n"
"        multipath { \n"
"        wwid                3600805f30015987000000000d643001a \n"
"        alias                oramp2 \n"
"        } \n"
"        mulitpath { \n"
"        wwid                3600805f3001598700000000086fc001b \n"
"        alias                oramp3 \n"
"        } \n"
"        mulitpath { \n"
"        wwid                3600805f300159870000000000984001c \n"
"        alias                oramp4 \n"
"        } \n"
"}"
msgstr ""

#. Tag: para
#: Block_Devices.xml:501
#, no-c-format
msgid ""
"This configuration will create 4 LUNs named "
"<filename>/dev/mpath/oramp1</filename>, "
"<filename>/dev/mpath/oramp2</filename>, "
"<filename>/dev/mpath/oramp3</filename> and "
"<filename>/dev/mpath/oramp4</filename>. Once entered, the mapping of the "
"devices&#39; WWID to their new names are now persistent after rebooting."
msgstr ""

#. Tag: title
#: Block_Devices.xml:507
#, no-c-format
msgid "Add a virtualized CD-ROM or DVD device to a guest"
msgstr ""

#. Tag: para
#: Block_Devices.xml:508
#, no-c-format
msgid ""
"To attach an ISO file to a guest while the guest is online use <command>virsh</command> with the <parameter>attach-disk</parameter> parameter. <screen># virsh attach-disk <replaceable>[domain-id] [source] [target] --driver file --type cdrom --mode readonly</replaceable>\n"
"</screen> The <replaceable>source</replaceable> and <replaceable>target</replaceable> parameters are paths for the files and devices, on the host and guest respectively. The <replaceable>source</replaceable> parameter can be a path to an ISO file or the device from the <filename>/dev</filename> directory."
msgstr ""