WiebeTech RTX800-IR User Manual download pdf (Page 25)

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R T X - I R U s e r ’ s M a n u a l - 25 -

After a VG has been created, you can create associated UDVs. You must create at least one UDV to

access the drives of the RTX-IR with a computer. To begin this process, click Create. This brings up a

screen displaying the following:

• Name: Enter a name for the UDV

• VG name: Choose the VG that you wish to add the UDV too.

• CV no.: Cache Volume number – if you have created multiple caches, you can select between

them. Normally the default option is preferred.

• Capacity: Enter the capacity of the UDV. The default uses the maximum capacity of the

associated VG. If you wish to create multiple UDVs on the selected VG, you will need to reduce

the capacity below the maximum so that there is space left on the VG for additional UDVs.

• Stripe height (KB): Determines how the RTX-IR organizes the RAID. Normally the default option

is preferred.

• Block size: Determines the minimum file size of the UDV. Higher block sizes can result in more

wasted space if many small files are saved to the drive, but are necessary to take advantage of

high capacity RAIDs. If you are creating a UDV over 2 TB in size, you must increase the

block size to 4096 to take advantage of the full capacity of the UDV. For more information,

see the Appendix, “Working with Volumes Greater than 2 TB”

• Read/Write: Allows selection of cache type. Normally the default option is preferred.

• Priority: Determines the priority that RTX-IR will give to RAIDing activities (rebuild, initialization)

versus priority given to file transfers. High priority will result in slower file transfers during

initialization, but provide for faster initialization.

After selecting your desired options, click Confirm. The new UDV will now display on the main UDV

screen:

The main UDV screen displays the following information:

• No.: The number of the UDV. Click the button below the number of a UDV to view more

information about that UDV.

• Name: The name of the UDV. Click the button below a UDV’s name to rename it.

• Size: The total capacity of the UDV. Click the button below the displayed size of a UDV to add

capacity to the UDV. Note: There must available space on the VG to extend the UDV.

• Status: The status of the UDV. Possible states are Online and Fail.

• 1: Displays the cache mode of the UDV. “WT” indicates that the cache is set to write through,

while “WB” indicates write back mode. Click the button below the cache mode to change the

cache mode.

• 2: Displays the priority of RAID functions for the UDV. Possible states are HI, MD (medium), and

LO. Click the button below a UDV’s priority to change the priority.

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WiebeTech RTX800-IR User Manual Page 25