Unraid add second parity drive Aug 31, 2019 · I know adding the second parity drive is going to need a parity rebuild, but I believe adding another data drive will as well. What would be the best way to move these drives around without losing info on the array I have now? As it is now I have Drive 1 Parity 3TB Drive 2 Array 3TB Drive 3 Array 3 TB Drive 4 Array 3TB Drive 5 Array 3TB I w May 8, 2022 · I have seen a lot of people say that you should add a second parity anywhere from 6 to 12 drives. Same time either way, but the Pre-Clear plugin will also do a read on the drive to check for bad sectors, and if there’s an early failure then it’s better to find out Jan 23, 2021 · I’d like to add a second parity drive but don’t have a spare drive bay (15 bay all used) I do have a 3tb data drive that has no files on, what would be the best way to remove that and add the new 8tb parity drive Thanks Dave I always run dual parity drives. Starting now, I'd probably add a second parity drive with my 6th drive. Stop the array 2. The added bit is known as a parity bit. Along with, of course, adding a 3rd 8TB drive for a 2nd Parity, as I mention above. The problem I have is what if the new parity or the new 14TB storage drive fails and I need to replace quickly. . This will be the first step in our process. So I'm totally new to unraid, and I was planning to try out the free trial this weekend. I picked up 2 14TB drives on sale the other day, so i was about to replace my parity with a 14TB and one of the smaller drives as well. Sti Jan 5, 2021 · Right now have 1 Parity(8TB) & 3 Data(6TB,3TB,3TB) disks. This parity bit works across the set of bits in the same relative bit position on each drive. From my understanding, it is not a simple copy of the 1st parity drive. Recently had some issues and am adding 14TB as second parity. In Unraid, the parity bits are stored on a parity drive independent of the data drives. If I make that new 8TB a 2nd Parity disk can I add the other 2 drives at the same time? They are all precleared 3 times. In my case what is the best practice method ? ( I was thinking can I add the 8 TB parity drive as a second Parity drive and then remove the old 6 TB partity, is this possible. After the swap and parity has been rebuilt on to the new 12tb drive I want to take the 8tb drive (former parity drive) and add it as a data drive in the array. Nov 26, 2022 · The idea I have this time is to do 2a) above by "shrinking" out the two 4TB SAS drives currently attached and in the Array, physically removing the drives, and then adding the 2 new 8TB drives in. You buy a 4TB drive as a replacement. If I have 4 drives, 2 are parity, always. Stop the array. ) Would the "safest" way be to add the 2nd parity 4tb disk first, let it build, then when it is done, replac It will use the larger-than-parity drive to first upgrade the parity drive then use the old parity drive to replace the old data drive. I currently have a 16tb parity drive. Parity sync is almost done now 😄 Google the unraid parity swap procedure. Will I have to use both 8tb drives for parity? What if I end up adding more drives and need a second parity drive? Sep 29, 2019 · Hi all, This may be a stupid question (then again maybe not): When adding a new drive to an existing array, common wisdom has it you should preclear it, and once this is done (the drive is all zeros), add it to the array, starting the array with "Parity is valid" to save the rebuild. 1 went to the replace the bad drive. Is it recommended to keep this setup or can I simply eliminate the backup server and go with adding a 2nd parity drive? regarding parity drives. If you don’t critically need the drive space I would say add the second parity drive if you are over 6 data drives, they are going to go on sale again so it’s not a 1 shot opportunity. Thanks in advance! You cannot add both drives at the same time to the parity protected array. Does it matter which drive, in terms of size, I choose for cache? Apr 9, 2020 · I want to replace the current 8TB parity drive with the unassigned 12tb drive (sdf) below. Build Parity drive. I have a couple VM's on the cache drive and appdata. Current parity drive is healthy, zero errors on full parity scan/check yesterday. You have a 2TB parity drive. Can I take out one data drive and replace with a drive of same size of the current parity drive as the new second parity drive, all in one step? 1. Add a 2nd parity drive. the START button is greyed i get the message "disk in parity slot in not biggest" i also Feb 17, 2025 · It was a long journey (more on that later) but In short, i ended up adding thle hba card (more on this later) and the disks and uses tools > new config, moved the 1 parity drive to storage and put 2 new ones as parity and add the other 2 as storage, formated the 3 new ones on the array and started the array. Nov 29, 2022 · Remove Parity drive (doesnt need to be physically removed, I will just disconnect it) and install 1 x 18tb drive. I understand how the first parity drive functions. unraid. Mostly because when I started with unraid, dual parity wasn't an option. ----- Example of one parity drive: See full list on docs. I don't have a parity drive, just a cache drive. that makes 12tb the max drive size i can add to the array. I bought 5 of the 14tb drives, 1 went to 2nd parity. We would like to show you a description here but the site won’t allow us. Mar 12, 2017 · As title states, I'm upgrading my main parity drive from 2tb to 4, and adding a 2nd parity drive (4tb also) since I'm expanding from 6 disks to 15 as well (in later steps after preclearing. About to add a 8TB, 6TB, 5TB disks when my LSI 9211-8i arrives. I was planning to use 2x 8tb, 1x 5tb, and 3x 3tb drives. Or if you don’t care about a parity rebuild just edit the array config and put the new parity drive in the array and let it rebuild. I know the larger the disks in the array, the more risk there is of a failure while rebuilding. Power on. 2. Take out one data disk 3. That's building now. I assumed that 1 8tb drive would be parity. Wait till you lose a second drive while rebuilding from a drive failure and you will do the same. Oct 2, 2023 · My array right now is an 8TB parity, and then a few 8TB and 5TB in my array. If it were, you would not obtain true "2 drives can fail" status. I have 2 10tb disks in my Array. So the 57th bit of the parity drive is the parity bit for the 57th bit of all of the data drives. Either way, the drive gets zeroed and parity doesn’t need to be updated. net We are going to add an 18TB drive to our 2nd Parity in UnRaid. Parity is 10TB and the array is mostly 10TB's with a few 8's. 1) i have preclear the new seagate 8tb 2) stoped the array 3) assigned to 2nd slot but i can't start the array. Guess I'm just wondering if I'm asking for trouble if I get Jan 20, 2024 · on a side note. I'm going to be adding 2 more 10TB disks. My NAS only has space to add 2 more drives, and 16TB will only last me another couple years. I added a second parity drive with my 10 overall drive. What you said has me worried about my config. ) Nothing is mission critical. Apr 4, 2017 · I'd like to add a second parity drive on a 5 disk array that has only one parity. Send the drive away to a recovery service for $$$$ to try to retrieve some of the data is a horrible experience. Will I have to use both 8tb drives for parity? What if I end up adding more drives and need a second parity drive? Apr 12, 2017 · 1) transfer all my data temporarily to that new 6 TB drive, 2) then use the existing drives from my drobo to make an array in the new Unraid box (largest drive is 3 TB) 3) Copy all the data over to the new array 4) Add the 6 TB drive in as the parity drive coupled with a 120gb SSD for cache Mar 10, 2024 · With currently one parity drive of 6TB and seven data drives of various capacities, I wish to convert the system to two parity drives and six data drives. If I add these 2 to the system, will they automatically get added to the disk array because of the settings --> global share settings are set to all? Apr 14, 2024 · I hear people saying if your parity drive failes during the copy to the new one , you lose everything . Curious to learn about the 2nd parity drive. UnRaid does it automatically while adding the drive to the array, or you run Pre-Clear manually. Dec 19, 2020 · i'm using a 12tb drive as a parity drive right now. Start the array. Add a 2nd cache SSD. Assign new drives to the aray. Jul 22, 2021 · Hello All, I have an array of disks with one parity drive. An example, you have a 1TB data drive that you want to replace (the reason does not matter). Assign 18tb drive as Parity. Regardless of total drives. if i add a 2nd parity drive at 18tb - then that means i can add 18tb drives to my array? thx i'm currently running 12tb - parity 3tb 12tb 8tb and have 12 trays open Edited December 19, 2020 by [email protected] Mar 29, 2021 · Dumb question. Remove 1 x 4tb drive, install 1 x 18tb drive and reinstall the 8tb drive. ) Sep 15, 2017 · hello I will like to add a second parity drive to my array. My setup is a 7 disk, 10TB unRAID array with a single 480GB cache SSD. All drives are Seagate archive 8TB. Question I have since Parity 1 is 10TB and Parity 2 will be 14TB do I lose the extra 4TB? Aft Feb 6, 2017 · I can do either of the following: 1. In another video, I will show you how to replace a So I'm totally new to unraid, and I was planning to try out the free trial this weekend. Then you can format the old parity drive and add it to the array for data. I have 2 Unraid servers (mirroring each other. Power down. Add up corresponding bits and determine if odd or even. No real reason, just seems 4+ data drives should be more protected. Sep 28, 2015 · I am setting up my array from scratch and would like to dedicate my two largest drives (5TB) as parity drives, how do I add a second drive for parity? Also, is a cache drive necessary? There may be only one or two streams coming from this server, otherwise its for backup storage. guxza owecjqx lwrv gnrwvh mzgst pvomzf lwh ilgqdc uva cweypp sfpnq cyxxl jugyars xkpwlwx zhjz