Hi,

 

I currently have an unRaid server with 8 data drives and 1 cache drive. The drives are between 750GB - 1.5TB. I don’t have that much more room in my server for additional drives and calculating parity takes a long time already with 8 drives so I was thinking about building a new unRaid server instead of moving everything to a new box and getting a bigger PSU. I would probably build a ATOM based system.

 

Today I have 6 shares and use disk includes/excludes for each share. I would like to move the drives of one share (3 drives) to the new server. Is it possible to do this keeping the data intact and calculating parity afterwards? How would one go about doing this?

 

Thanks for any help or comments,

 

Roland

Hi,

 

I currently have an unRaid server with 8 data drives and 1 cache drive. The drives are between 750GB - 1.5TB. I don’t have that much more room in my server for additional drives and calculating parity takes a long time already with 8 drives so I was thinking about building a new unRaid server instead of moving everything to a new box and getting a bigger PSU. I would probably build a ATOM based system.

 

Today I have 6 shares and use disk includes/excludes for each share. I would like to move the drives of one share (3 drives) to the new server. Is it possible to do this keeping the data intact and calculating parity afterwards? How would one go about doing this?

 

Thanks for any help or comments,

 

Roland

Easy... power down the old server, move the three drives to the new server, power up the old server.. (it will complain they are missing)

Go to the Devices page on the management interface on the old server.  Un-assign the drives you removed.  Go back to the main page.

Then, check the checkbox under the "Restore" button and press it, then "Start" the array.  It will compute parity on the remaining assigned drives. 

 

When removing drives, and not intending to immediately replace them is usually the only time the "restore" button should be pressed... (unless you are forcing a specific drive to be recognized as not-valid, in which case you must enter a command between pressing "restore"

and "start" on the command-line)  Even removing one drive from a server will make its existing parity useless, so you must press "Restore" to force it to perform a full parity calc and create a new configuration after you un-assign the removed drives.

 

Then, on the new server, install a parity drive, assign the data drives to three of the data slots, and press "Start"

If it had a previous configuration with other drives, press "Restore" to erase any knowledge of the old config, then "Start"

 

Wait for both parity calcs to complete and you are done.  Oh yes, make sure to give the second server a different "name" than the first in its settings page.  Two machines named "tower" on the same LAN will cause hair loss.  (translation, you'll be pulling out your hair trying to figure out what is happening until you give one of them a unique name)

 

Joe L.