Bugman1400 Posted October 29, 2015 Posted October 29, 2015 I have an existing tower with two 240 GB set up for RAID 1 w/ Windows XP OS, one storage drive (F:) that is two 1.5 TB set up for RAID 1, and another storage drive (G:) that is also two 1.5 TB set up for RAID 1. My (F:) storage drive is almost maxed out. My (G:) storage drive is about half way. I would like to transition to a new unRAID server. For the new unRAID server, I bought two 240 GB SSDs that are blank. I would like to add my existing 1.5 TB drives and data. After which, I plan to virtualize the Windows XP and place on the unRAID server because I still want to use the installed apps and do not want to re-install on them on the new Windows 8 machine I plan to build. My initial thought was to remove one 1.5 TB drive from each of the RAID 1 arrays and add to the new unRAID server. My current system will give me an error that a drive has failed but, it would allow my data to remain on the leftover drives. Then, once the unRAID server is set up, I can just transfer all the data and then add the leftover 1.5 TB drives to the unRAID server. Will unRAID allow me to do this? What is the minimum # of drives I need? Is it correct that the unRAID server size will grow as you add drives and adjust accordingly?
trurl Posted October 29, 2015 Posted October 29, 2015 I have an existing tower with two 240 GB set up for RAID 1 w/ Windows XP OS, one storage drive (F:) that is two 1.5 TB set up for RAID 1, and another storage drive (G:) that is also two 1.5 TB set up for RAID 1. My (F:) storage drive is almost maxed out. My (G:) storage drive is about half way. I would like to transition to a new unRAID server. For the new unRAID server, I bought two 240 GB SSDs that are blank. I would like to add my existing 1.5 TB drives and data. After which, I plan to virtualize the Windows XP and place on the unRAID server because I still want to use the installed apps and do not want to re-install on them on the new Windows 8 machine I plan to build. My initial thought was to remove one 1.5 TB drive from each of the RAID 1 arrays and add to the new unRAID server. My current system will give me an error that a drive has failed but, it would allow my data to remain on the leftover drives. Then, once the unRAID server is set up, I can just transfer all the data and then add the leftover 1.5 TB drives to the unRAID server. Will unRAID allow me to do this? What is the minimum # of drives I need? Is it correct that the unRAID server size will grow as you add drives and adjust accordingly? The parity drive must be as large or larger than any single data drive. Except for parity, all other drives, of whatever size, add to the capacity of the server. You must let unRAID format any drive it uses, and it's best to also test any drive before using it in unRAID. Any drive added to an array that already has a parity disk must be cleared (completely written with zeros) so parity will remain valid. The preclear script/plugin will do that for you, and most people also use preclear for testing drives. See search tips in my sig. Also recommend browsing the wiki.
ntrlsur Posted October 29, 2015 Posted October 29, 2015 I have an existing tower with two 240 GB set up for RAID 1 w/ Windows XP OS, one storage drive (F:) that is two 1.5 TB set up for RAID 1, and another storage drive (G:) that is also two 1.5 TB set up for RAID 1. My (F:) storage drive is almost maxed out. My (G:) storage drive is about half way. I would like to transition to a new unRAID server. For the new unRAID server, I bought two 240 GB SSDs that are blank. I would like to add my existing 1.5 TB drives and data. After which, I plan to virtualize the Windows XP and place on the unRAID server because I still want to use the installed apps and do not want to re-install on them on the new Windows 8 machine I plan to build. My initial thought was to remove one 1.5 TB drive from each of the RAID 1 arrays and add to the new unRAID server. My current system will give me an error that a drive has failed but, it would allow my data to remain on the leftover drives. Then, once the unRAID server is set up, I can just transfer all the data and then add the leftover 1.5 TB drives to the unRAID server. Will unRAID allow me to do this? What is the minimum # of drives I need? Is it correct that the unRAID server size will grow as you add drives and adjust accordingly? Yes unraid will allow you to do that. If you break your mirrors in the windows world you will have a failed drive. You can take those disks and create an array for unraid. The min number of drives needed for unraid technically would be 1. To get parity protection min number is 2. 1 array drive and 1 parity drive. unraid can grow as you add drive. For your situation I would pull the 2 drives from different mirrors. Set 1 drive as array and the other as parity. (The largest disk needs to always be the parity drive) Copy the data from one broken mirror to array. Take the drive that data was copied from in the windows world and move that to unraid and grow the array. Once the array has expanded copy the data from the second mirror set to unraid. Once that data has been copied take the final drive from the windows world and move it to unraid. You will then have a 4.5TB of space in the array and a 1.5tb drive as the parity drive.
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