All Activity. Home. Unraid OS 6 Support. General Support. SOLVED - Replace Cache Disk? Given the SMART report on the cache drive in my system, I presume I should replace this disk ASAP (or sooner)? The attached diagnostics includes the SMAET report for all drives, but the cache is the concerning one. Also, I have read in this forum that in ...Mar 15, 2023 · Unraid 6.12.0-rc1 Now Available. The 6.12.0 release candidate includes initial ZFS support, bug fixes, and kernel and package updates. Also, don't miss the new customizable dashboard . Customizable dashboard is probably much more important feature for casual users like myself.Jan 13, 2019 · To make things clear. Use the biggest drive you have for parity and then two same SSDS for cache. But Things go this way. Add as many drives you like In there, unraid will simply ask you what you want to do with those. You need them for the ARRAY then add the biggest one for PARITY and finally the CACHE with the SSD.Was easy. shut down array. replace 1 drive with new drive. start array. unraid will see a pool drive missing. Assign new drive to pool. let pool rebuild (will take some time) after pool rebuilds on to new drive, shut down array. repeat 2-4 for 2nd drive. done.Feb 28, 2021 · I currently have a 500gb SSD as my cache. My unRaid system primarily does the following (in order of usage): Sonarr/Radarr/sabnzbd - amount downloaded varies. Hosts file shares - usage greatly varies. Sometimes I copy large amounts of data at a time to the system, but honestly its smaller amounts of files. I have Mover running hourly.Dec 31, 2019 · This is a known ‘bug’ in the way BTRFS reports free space on the case of mismatched drive sizes. You are correct in that the usable space with 2 mismatched drives is the size of the smaller drive. NVMe/SSDs can only be used as cache in Unraid, so you’re kinda of mixing it up in your questions. NVMe is your cache drive (or cache pool) and App Data should go on it. sams8com • 1 yr. ago. Not necessarily, I know some who have setup up a cache drive and setup the 2nd NVME purely for App data like a disk1.you can leave the ssd in, start a new cache pool, stop the vm and docker services, copy /mnt/cache/* to /mnt/newcache/* and then change all the share cache'ing preferences. THEN remove the old cache or keep it for some other reason.Nov 18, 2013 · There are many reasons to like unRAID, one of them is it’s ability to easily add drives of mismatched size as and when they become available to you. I had followed this principle over the years and ended up with a hodge-podge of drives. As was my want I’ve decided to remove all 6 (yes 6) drives at once from my array and replace them with …I'm after some advice as to the best way of replacing my current cache/VM storage drive and reusing the old drive as an additional data drive. I'm currently …Feb 20, 2018 · Main, Cache Device, Change the format type to what you want. If its already what you want and just want to reformat it, then: Change it to anything else. Start the array. Format the drive. Stop the array. Change the format type to what you want. Start the array. Format the drive. Initiate mover to move files off cache and on to array. Shut down the server, remove the drive. Insert new drive, spin up array. Set new drive to be a cache, set all …Apr 22, 2021 · This is the 4th part of a series of videos all about Unraid 6.9. This series will take you through everything that you need to know to get a server up and r...Nuke it, start fresh and move the backup to the new cache drive. The. Start everything back up. Just replace it in the GUI, then double check unraid rebalances things and it's not degraded. If you've started the array with one disk, unraid probably already rebalanced the array to single automatically. Adding a second one should allow it to ...Nov 22, 2021 · if no issues, shut down server. replace data drive with new precleared drive. start server. when server comes up, it'll detect missing data drive, select the new data drive in the drop down. click start to start the array. let parity rebuild the new data drive. Once 7 completes, I'd then preclear the old data drive to be used elsewhere.No modify flag set, skipping filesystem flush and exiting. You need to run without the -n option if you want anything to be fixed, and if it asks for it add the -L option. Restarting in normal mode should mean the drive then mounts OK. Look to see if you now have a lost+found folder - if not all data should be intact.May 29, 2020 · That's because Unraid doesn't let you remove a drive from the array completely or replace a drive with a smaller one without doing a new config. You'll need to do a new config, select to keep "Parity" and "Data' drives, but uncheck the Cache drive. The array will go down and you can select the new cache drive. Then take it out of …Nov 21, 2019 · From the command line, you should be able to remove the folder by navigating to it via /mnt/disks/... and using the rmdir command. liquidbings8 • 4 yr. ago. I have a basic understanding of command line and can usually figure my way through it if I know what I'm trying to do. The folder Im trying to delete is /mnt/cache/TV Shows.Replacing a cache drive - having issues. I've read a few guides and am trying to replace my cache drive as it's a Crucial MX500 which has issues on unRAID. I've set all of my shares mover action to be Cache->Array, turned off Docker (there's no VM's, so none turned off) and ran the mover several hours ago. I'm still seeing data on the cache ...Hi, I use Unraid primarily as a nas/media server, and I found that I was writing a LOT of data to my cache drive repeatedly when i was migrating a couple terabytes of data onto the new server. I had a used Samsung 850 EVO ssd that I used for cache, and I am seeing that I am having pre-failure warnings now from too much writing.May 2, 2018 · All Activity. Home. Unraid OS 6 Support. General Support. Replace cache drive. I have a ssd as cache drive at the moment but it's way to small. I'm thinking of to use spinners as my cache drive because they are cheaper. Of course I want speed is this possible with spinners. The Seagate hard drive is, well, a hard drive with decent cache 128MB and it’s a 7200rpm spinner, more than adequate for what we are testing out. Other Noteworthy Hardware Between the two Unraid servers we are using the following hardware to assist us and to remove any potential bottlenecks.All Activity. Home. Unraid OS 6 Support. General Support. SOLVED - Replace Cache Disk? Given the SMART report on the cache drive in my system, I presume I should replace this disk ASAP (or sooner)? The attached diagnostics includes the SMAET report for all drives, but the cache is the concerning one. Also, I have read in this forum that in ...Oct 3, 2023 · Unraid OS 6 Support. General Support. Best way to replace my (dying) cache drive with a pool of 2? Running 6.10.3 here. I have an old 1TB SSD that, surprise surprise, has started failing. I tried rsyncing all the data off it, and did a ddrescue as well, but in both cases I got a number of read errors. So while I have most of the data still ... I believe the steps would be: Disable docker. Stop the array. Remove the failed cache drive. Start the array. Stop the array and power off your server. Add your new cache drives. Power on your server and add the cache drives to the array. Start the array, enable docker and re add your docker applications.I'm after some advice as to the best way of replacing my current cache/VM storage drive and reusing the old drive as an additional data drive. I'm currently …if unraid is running on proxmox, can we partition small portion of that nvme to be used as cache drive in unraid? or is that going to kill the life of the nvme. TheStuffle • 8 mo. ago. Use 2 as the main cache (appdata, VMs, dockers) in raid 1. Use the other one as a dedicated downloads/transfer drive.12 ) Disable VM service. 13 ) Remove both cache drives from the cache pool. 14 ) Start the array. 15 ) Stop the array. 16 ) Add each cache drive in the same position they were in based on cache drive replaced. 17 ) Verify the "All existing data on this device will be OVERWRITTEN when array is Started" is NOT present.I just upgraded to Unraid V6.11.5 ... So while I could move all data off the cache to the array, once I replace that cache drive I wouldn't be able to move the data back. That isn't the end of the world for me, I just use mover tuner to move files that are older than 30 days to the array so I avoid HDD spin ups.Replaced cache drive, Docker containers missing. I just replaced my cache drive. I copied off my /appdata, /system, /domains folders, and then copied them back to the new drive (still has the same "Device Name"). VM's fired back up no problem, but when I restart the Docker Service it shows no containers installed.Jan 2, 2017 · replace needs the filesystem to be mounted rw to operate.. In a degraded BTRFS RAID1 filesytem, you have one and only one chance to mount the filesystem rw using -o degraded:. degraded (default: off) Allow mounts with less devices than the RAID profile constraints require. A read-write mount (or remount) may fail when there are too …Jan 1, 2022 · Change cache drive. : r/unRAID. by RocketPocketNotIt. Sanity check please. Change cache drive. Happy new year everyone, a quick noob question! I recently got a new nvme cache drive for my unraid server, and want to replace my old sata m.2 ssd (only 1 m.2 port on the motherboard). I looked around for a guide and of course found …replace 1 drive with new drive start array. unraid will see a pool drive missing. Assign new drive to pool. let pool rebuild (will take some time) after pool rebuilds on to new drive, …I would test your capacity out. Using two cache drives should be in either raid 0 or raid 1. 360GB available shouldn’t be possible. I remember reading about a bug when you use raid 1 between uneven drive sizes. What should happen is unraid will use the common drive size (240gb) and mirrors it, wasting the excess space on the larger drive.Storage Management To assign devices to the array and/or cache, first login to the server's webGui. Click on the Main tab and select the devices to assign to slots for parity, data, and cache disks. Assigning devices to Unraid is easy! Just remember these guidelines: Always pick the largest storage device available to act as your parity device (s).Jul 22, 2023 · Yesterday just as a test I added 128GB SSD as a cache vdev to my raidz1 pool (4x4TB). I tested to see any performance improvement on read and write but I don't see any as its the same with or without. Now I want to remove the cache and use the drive for something else. I couldn't find any option from GUI on how to remove it. I am a bit worried ...If you drive a vehicle with a diesel engine, you rely on glow plugs to help keep the temperature regulated, which keeps the engine in good working order. However, these plugs eventually wear out and must be replaced. Luckily, it’s pretty ea...boontato • 21 days ago. pretty easy, one method is turning off dockeron appdata change it from cache only to cache yes and run the moverthat should move all the files from the ssd to the array, double check that its empty and then you can replace the drives.when the new cache drives are assigned you just change it frm cache yes to cache ...If your single ssd cache drive fails you will lose everything. There are plugins to backup you cache drive to the array. You run a cache pool that are mirrored to cut your chances down on losing stuff. Again, just like the array, you should have a offsite backup of everything. Raid/Unraid is not a backup. ;)shut down the server physically install your cache drive (s) boot up the server stop the array under "Pool Devices" for each device, click a new slot and select a device from the drop down start the arrayshut down the server. physically install your cache drive (s) boot up the server. stop the array. under “Pool Devices” for each device, click a new slot and select a device from the drop down. start the array. under “array operations” check off the “Yes, I want to do this” under “Format” which will format all unmountable disks ... Cache is independent of the array. What you needed to do is install the new cache drive, copy the data from the old cache to the new cache, then remove the old cache drive. Another way to go about that is to change the cache settings on your shares. Right now you have 'Yes', 'Prefer' or both. shut down the server. physically install your cache drive (s) boot up the server. stop the array. under “Pool Devices” for each device, click a new slot and select a device from the drop down. start the array. under “array operations” check off the “Yes, I want to do this” under “Format” which will format all unmountable disks ... This video is a comprehensive showing showing how to enhance your Unraid setup by either upgrading your cache drive to a larger capacity or switching over to...Yes. If you preclear them, you don't need parity rebuild, so you not only save time there, your array isn't unprotected during that time. Also, enterprise disks might be made to be more robust, all disks have a bad curve failure rate: high at the start, long time very low, high at the end of their life. Enterprise grade pushes that end further ...150 Geo-Resources JSDG Vol. 20 No. 3 Juni 2010-2º50'S-2º49'S 103º14'E 103º15'E 103º16'E 0 750m N W E S Legend Qtk : Kasai FormationStop the array. Assign the 12TB as parity drive. Start the Array and let it build the parity drive. After that's done, stop the array and add the original 8TB as a data drive 5. Unraid will clear it in the background and when that's done (hours), then the storage space is available.boontato • 21 days ago. pretty easy, one method is turning off dockeron appdata change it from cache only to cache yes and run the moverthat should move all the files from the ssd to the array, double check that its empty and then you can replace the drives.when the new cache drives are assigned you just change it frm cache yes to cache ...Nov 20, 2022 · In Unraid 6.9 multiple pool support was added and in this video we'll be going over the multistep process of moving Docker and VM Manager data off of a cache...Then disable the mover scheduelr, replace disks and remake cache. Enable mover and change shares back. That's how I did it, anyway. pacmain • 3 yr. ago. It will do RAID 1 but you will not be able to use the extra space. If you in the future replace the smaller drive it will auto expand to the new size.Apr 7, 2021 · One of the benefits of using the UnRaid cache array over Unassigned devices is the GUI support and automatic use of BTRFS over all the cache devices, allowing you to easily switch between optimizing for speed or redundancy. You don't have to go to the command line and manually format it to get the same results if you aren't comfortable …The 2 TB model, which is US$300 off, is rated for 1,200 TBW. These drives are also excellent options for upping the storage capacity of a notebook or gaming PC. The 870 EVO solid-state drive comes in a 2.5″ form factor and connects using the SATA interface. Your Unraid server’s case should have enough space to house at least a couple of these.A quick guide to the process of replacing a data drive in an Unraid array. Whether its because of a drive failiure or if you want to replace an existing driv...Ironically, I've had bad luck replacing one drive when the mirror fails in my cache - again probably due to my cheap drives! Twice not, the second drive has failed as soon as I replace the 1st - therefor losing all the data on the cache. Thankfully, I took a backup of the cache first, but both times it was a pain to restore. Unraid OS 6 Support. General Support. Replace single cache drive. Hi, I just went through a process to replace all of the drives in my unraid machine, one at a time. Everything went great until i switched out my cache drive for an SSD. Yeah, I was yet familiar with the appdata stuff on the cache drive and after a little bit of messing with it ...If your single ssd cache drive fails you will lose everything. There are plugins to backup you cache drive to the array. You run a cache pool that are mirrored to cut your chances down on losing stuff. Again, just like the array, you should have a offsite backup of everything. Raid/Unraid is not a backup. ;)How to implement a #cache drive in Unraid TechBytes with Ron Nutter 7.32K subscribers Join Subscribe 173 9.7K views 2 years ago How to manage your …Installing Scrutiny on Unraid. Before you get to install Scrutiny, you will need to know which drives the application shall monitor. You can either enter the main tab in the Unraid dashboard, and look up the names of your individual drives (sda, sdb, sdc, etc.), or you can execute the following command in a terminal window: smartctl --scan.hi unraid 6.5.3 pro since few days i got notifications that indicate my cache disk is full ... So you might check your cache drive in another system. Couldn't hurt. ... Change the cache use setting for that share to "No", more info here:Hi, I use Unraid primarily as a nas/media server, and I found that I was writing a LOT of data to my cache drive repeatedly when i was migrating a couple terabytes of data onto the new server. I had a used Samsung 850 EVO ssd that I used for cache, and I am seeing that I am having pre-failure warnings now from too much writing.Replaced cache drive, Docker containers missing. I just replaced my cache drive. I copied off my /appdata, /system, /domains folders, and then copied them back to the new drive (still has the same "Device Name"). VM's fired back up no problem, but when I restart the Docker Service it shows no containers installed.Replace cache drive Start server Create new cache pool Reset your shares to use or prefer cache drive Reply joleger • Additional comment actions. Thanks Reply More posts you may like. r/NextCloud • Resetting my server. r/unRAID • How to replace failed cache drive? r/synology • 2-bay to 4-bay ...Sep 26, 2015 · Things working so far. Assigned then one drive to the cache. Funny enough, as it was previously a btrfs formatted drive, it just spun up, but empty. Progress. Assigned the other three drives, now 4 drive cache array, empty and no errors in the syslog. Yippee to test, I go to start docker with a new file, nada. Won't run. Mar 2, 2021 · Both on same ssd causes slow downs. Multiple cache pool over a unassigned drive as I ran into permission issues when using unassigned drives for a download drive. im doing basically what you posted here. i got 3 pools right now one with 2x 256GB NVME that holds the Appdata and System shares.Overview A cache disk is a hard drive that is not part of the normal parity-protected array. When a cache disk exists in the system, it is visible as a disk share named 'cache' (provided disk shares are being exported). You may read data from or write data to the cache share just as you would any other disk share.I then looked up how to move the cache shares back to the array and it showed to set the Use cache pool (for new files/directories) to "Yes". I did that, but still see the shares on the cache drive. Is there an easy or better way to replace the cache drive efficiently? Thanks for the help.Feb 15, 2020 · This is often caused by a user accidentally creating a share by specifying the wrong upper/lower case in a docker mapping or other path. Linux is case sensitive. Any folder at the top level of cache or array is automatically a user share, even if you didn't create it as a user share in the webUI. Feb 14, 2020 · Is your unRaid cache drive or cache array full? Want to upgrade? Here's how!Kingston SSD: https://amzn.to/38w8JlsSilicon Power SSD: https://amzn.to/37u5J82M.... General Support. replace cache drive. So I want to replace my cache drive with a larger one. What is the best way to do this without having to reinstall my plugins …It backs up your cache to the array which is then part of the parity. best bet is to add a second cache drive as its live syncing (raid 1) and and then you don't really need to worry (as much) you can also download the appdata backup plugin which will allow you to backup the appdata and any other directories on the cache drive to the array on a ...I created a RAID 0 cache pool using 2 new SSDs BTRFS formatted. One of the drives show SMART errors and will have to be RMA:ed. I have received a replacement drive. What is the procedure to replace one of the drives in this scenario. The forum posts I have found cover only older single drive cache pool scenarios.This is a known ‘bug’ in the way BTRFS reports free space on the case of mismatched drive sizes. You are correct in that the usable space with 2 mismatched drives is the size of the smaller drive.shut down the server. physically install your cache drive (s) boot up the server. stop the array. under “Pool Devices” for each device, click a new slot and select a device from the drop down. start the array. under “array operations” check off the “Yes, I want to do this” under “Format” which will format all unmountable disks ...Replacing Cache Drive So I'm trying to replace my old 250gb SSD to 1TB NVME SSD. Everything I found on how to do that is pointing to this link: https://wiki.unraid.net/Replace_A_Cache_Drive but it is empty. 6 2 comments Best Add a Comment B93M • 1 yr. agoI believe the steps would be: Disable docker. Stop the array. Remove the failed cache drive. Start the array. Stop the array and power off your server. Add your new cache drives. Power on your server and add the cache drives to the array. Start the array, enable docker and re add your docker applications.I just went through this process and had some stubborn files at the end too. I used unBalanced to move them over and that took care of the files. Believe the main stab still shows some space. Being used in the drive but it was empty and was replaced without issue. You need to set to Yes and then invoke Mover.Change the "appdata" user share cache setting from "no" to "Prefer." (From help docs for Prefer: When the mover is invoked, files and subdirectories are transferred off the array and onto Cache disk/pool.) 3. Run the Mover. 4. Change the "appdata" user share cache setting from "Prefer" to "Only."Steps taken: I had one 500gb cache drive: cache 1. Used an extra sata connection to add a 1tb cache drive: cache 2. Created a cache pool with the two drives. On the shares tab I went to the shares that should use a cache drive. On the Select cache pool drop down I am presented with two options cache 1 and cache 2. I changed them to cache 2.Hi, Today i merged my unassigned SSD/data back into the main pool, and now have 2x 1Tb drives in a SSD cache pool for a 3x 4Tb HDD array. What i'm trying to work out is the best cache settings to use, whilst also minimizing HDD drive-spin up, and SSD write usage too (obviously depends on the apps at play).Go to Tools - Diagnostics and attach the complete Diagnostics ZIP file to your NEXT post in this thread. Done. In Share settings I set "Use cache (for new files/directories):" back to "Yes". I also pressed "Mover" and it looks like the cache drive is slowly getting more space. But the array is also increasing.To replace a failed disk or disks: Stop the array. Power down the unit. Replace the failed disk (s) with a new one (s). Power up the unit. Assign the replacement disk (s) using the Unraid webGui. Click the checkbox that says Yes I want to do this and then click Start . When you start the array after replacing a failed disk or disks, the system ...I then assigned the new cache drive, formatted it and copied the data back in. I'm seeing , shut down array. replace 1 drive with new drive. start array. unraid will see a pool dr, unRAID's cache drive is a storage tier. It's not a cache dr, If your single ssd cache drive fails you will lose everything. There are plugins to backup , How to implement a #cache drive in Unraid TechBytes with Ron Nutter 7.32K subscribers Join Subscribe 173 9.7K, Primary memory is the internal working memory of a computer, and it includes RAM and the cache. Seconda, Invoke the mover. Check cache drive is clear. Stop array replace drive. Return the sha, Mar 12, 2019 · 6. Posted March 12, 2019. On the Shares page clic, Run the Mover (I had ~250GB in use on my cache, and it took , Go to Tools - Diagnostics and attach the complete Diag, Kinda, The unraid btrfs cache pool is used for unraid docker/vm de, All Activity. Home. Unraid OS 6 Support. General S, Simply click the folder icon on the far right behind th, Sep 4, 2022 · Go to unRAID r/unRAID • by Robti, Kinda, The unraid btrfs cache pool is used for unraid docker, Navigate to /mnt/cache in the left window. Tab to , Oct 3, 2023 · Unraid OS 6 Support. General Support, Jan 9, 2021 · A quick guide to the process of replacing a data driv.