Table Of Contents
Volume Configuration
Create a Logical Volume
Expand a Logical Volume
Delete a Logical Volume
Rename Logical Volumes
Map Logical Volumes
Volume Configuration
When you click the Configure Volumes button in the navigation pane, you are taken to the Create a Logical Volume page. The navigation bar across the top contains links to this section's subpages.
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Add Volume links to Create a Logical Volume
•Expand Volume links to Expand a Logical Volume
•Delete Volume links to Delete a Logical Volume
•Rename Volume links to Rename Logical Volumes
•Map Volume links to Map Logical Volumes
Create a Logical Volume
Clicking Configure Volume takes you to the Create a Logical Volume page, which allows you to create logical volumes that act like disk partitions on RAID arrays in your system.
To add a new volume, do the following:
Step 1 Select an array and click the Next button to be taken to the volume creation tool.
Step 2 Enter the following information:
•Enter the name for the new volume: If this is the first volume configured for this array, then the name defaults to the name of the array. If there are already volumes on the array, then the name is blank. Enter a name for the volume. This can be up to 63 characters long.
•Enter the size of the new volume in X: The value of this field defaults to all of the remaining space left on the array. The units defaults to true gigabytes (GB), but this can be changed using the Change Units button. Enter the desired size of the new volume.
•Limit volume size to less than 2TB: This option is unchecked by default. If your hosts do not support volumes of more than 2 terabytes (TB) in size, check this option.
Note If you select this option, the value entered in Enter the size of the new volume in X must not exceed 2TB, or else the volume will not be built and an error message will appear.
Step 3 When you have entered all of the required information, click Create Volume.
A message is displayed, informing you that the volume as been created, and you are prompted to assign a logical unit number (LUN) and host port access.
Step 4 In the Volume LUN Mapping section, assign a logical unit number (LUN) for each port that the volume will be accessed through. Check the Use same LUN for all ports of the same type check box to have all Fibre Channel, SAS-to-Host, 10GbE, or iSCSI ports use the same LUN mapping.
Note SAS drives are not supported with the Cisco Video Surveillance Storage System. iSCSI is supported on Cisco Video Surveillance Systems (VSM) deployed as a Virtual Machine for VSM releases 7.2 or higher.
Step 5 Set the Default Access (applied to new or unknown hosts) by selecting Deny, Read, or R/W:
•Select Deny to prevent all new or unknown hosts from accessing the volume. This is the default setting.
Note It is recommended to leave the Default Access setting as Deny and then grant access to specific hosts as necessary. This prevents unconfigured hosts from modifying existing data.
•Select Read to allow read-only access to the volume for all new or unknown hosts.
•Select R/W to allow read/write access to the volume for all new or unknown hosts.
Step 6 If at least one host group has been created (see Manage Host Groups), set the Group Default by checking or unchecking the box in the Use Default column:
•If Use Default is checked, this setting is the same as Default Access. This is the default setting.
•If Use Default is unchecked, this setting overrides the Default Access setting. You can select Deny, Read, or R/W as the default for all host groups.
Step 7 Set access privileges for individual hosts by checking or unchecking the box in the Use Default column:
•If Use Default is checked, the host or host group will use the Group Default setting (if the host is part of a group) or the Default Access setting (if the host is not part of a group). This is the default setting.
•If Use Default is unchecked, this setting overrides the Group Default and Default Access settings. Select Deny, Read, or R/W to set the access privileges for the specific host.
Step 8 When you have finished assigning host access privileges, click Apply Changes.
A message is displayed, indicating that the settings have been saved.
Note If at any time you wish to return the volume mapping page to its initial state, click Reset.
Note For more information about host access, see Chapter 8 "Host Access Configuration".
Expand a Logical Volume
Clicking Configure Volume > Expand Volume takes you to the Expand a Logical Volume page. This page lists each array in the system and all volumes in each array. Scroll down to see all arrays and volumes.
The array information section lists the array name, array number, array owner, enclosure, and total capacity. See RAID Array Information for more information.
If there is free space on the array, this section displays the total amount of space taken up by existing volumes, plus the percentage of the array's total capacity used. If there is no space on the array, a message to that effect is displayed.
Each volume's information section lists the volume ID, array name, volume name, volume capacity, the percentage of the array that the volume uses, the number of bad blocks, the volume serial number, the date that the volume was created, and a link to the logical unit number (LUN) mapping information (see Map Logical Volumes).
To expand a volume, do the following:
Step 1 Enter a new volume size in true gigabytes (GB) in the GB field.
Step 2 Click Expand Volume.
A confirmation screen is displayed.
Step 3 Do one of the following:
•To cancel the volume expansion, click CANCEL Expand.
A message is displayed, stating that the operation has been cancelled.
•To proceed with the volume expansion, check the confirmation check box and click Confirm Expand Command.
A message is displayed, confirming that the volume has been expanded.
Step 4 Click the Back button to return to the Expand a Logical Volume page.
Delete a Logical Volume
Clicking Configure Volume > Delete Volume takes you to the Delete a Logical Volume page. This page lists each array in the system and all volumes in each array. Scroll down to see all arrays and volumes.
The array information section lists the array name, array number, array owner, enclosure, and total capacity. See RAID Array Information for more information. If there is free space on the array, this section displays the total amount of space taken up by existing volumes, plus the percentage of the array's total capacity used.
Each volume's information section lists the volume ID, array name, volume name, volume capacity, the percentage of the array that the volume uses, the number of bad blocks, the volume serial number, the date that the volume was created, and a link to the logical unit number (LUN) mapping information (see Map Logical Volumes).
To delete a volume, do the following:
Step 1 Click the Delete Volume button in the volume's information area.
A confirmation screen is displayed.
Step 2 Do one of the following:
•To cancel the volume deletion, click the CANCEL Delete button.
A message is displayed, stating that the operation has been cancelled.
•To delete the volume, click the confirmation check box and then click Confirm Delete Command.
A message is displayed, confirming that the volume has been deleted.
Step 3 Click the Back button to return to the Delete a Logical Volume page.
Rename Logical Volumes
Clicking Configure Volume > Rename Volume takes you to the Rename Logical Volumes page.
Each volume information section lists the volume number, current volume name, the array the volume belongs to, the controller that the array is assigned to, the enclosure, the volume's capacity, and the volumes host port assignments (see Configured Logical Volumes).
To rename a volume, do the following:
Step 1 Enter the new volume name in the New Name field (default is the current volume name).
Step 2 Click Save Settings.
Note If at any time you wish to return the Rename Logical Volumes page to its initial state, click Reset.
Map Logical Volumes
Clicking Configure Volumes > Map Volume takes you to the Map Logical Volumes page.
Each volume information section lists the volume number, current volume name, the array the volume belongs to, the controller that the array is assigned to, the enclosure, the volume's capacity, and the volumes host port assignments (see Configured Logical Volumes).
Caution Changes are made immediately. Changing the LUN of a volume in use could cause your Operating System to crash or lose communication with the volume.
To map a volume to a logical unit number (LUN), do the following:
Step 1 Click the Next button next to the volume you wish to map.
The volume mapping tools are displayed.
Step 2 In the Volume LUN Mapping section, assign a logical unit number (LUN) for each port that the volume will be accessed through. Check the Use same LUN for all ports of the same type check box to have all Fibre Channel, SAS-to-Host, 10GbE, or iSCSI ports use the same LUN mapping.
Note SAS drives are not supported with the Cisco Video Surveillance Storage System. iSCSI is supported on Cisco Video Surveillance Systems (VSM) deployed as a Virtual Machine for VSM releases 7.2 or higher.
Step 3 Set the Default Access (applied to new or unknown hosts) by selecting Deny, Read, or R/W:
•Select Deny to prevent all new or unknown hosts from accessing the volume. This is the default setting.
Note NOTE: It is recommended to leave the Default Access setting as Deny and then grant access to specific hosts as necessary. This prevents unconfigured hosts from modifying existing data.
•Select Read to allow read-only access to the volume for all new or unknown hosts.
•Select R/W to allow read/write access to the volume for all new or unknown hosts.
Step 4 If at least one host group has been created (see Manage Host Groups), set the Group Default by checking or unchecking the box in the Use Default column:
•If Use Default is checked, this setting is the same as Default Access. This is the default setting.
•If Use Default is unchecked, this setting overrides the Default Access setting. You can select Deny, Read, or R/W as the default for all host groups.
Step 5 Set access privileges for individual hosts by checking or unchecking the box in the Use Default column:
•If Use Default is checked, the host or host group will use the Group Default setting (if the host is part of a group) or the Default Access setting (if the host is not part of a group). This is the default setting.
•If Use Default is unchecked, this setting overrides the Group Default and Default Access settings. Select Deny, Read, or R/W to set the access privileges for the specific host.
Step 6 When you have finished assigning host access privileges, click Apply Changes.
A message is displayed, indicating that the settings have been saved.
Note If at any time you wish to return the Map Logical Volumes page to its initial state, click Reset.
Note For more information about host access, see Chapter 8 "Host Access Configuration".
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