Unraid cache balance. Per this post on the forums, I would try running the below command from the console. The usual setup is to have /data use Cache “Yes” so that writes are to the cache pool and things like not sure what happened but overnight a cache drive got dropped from pool when i rebooted i got a message about too many profiles and my 500gb cache pool was now 1TB so i found Easiest way to balance back out after losing a drive is to use the unbalance app and tell it to move large portions of a share in which the share has data across lots of variety of drives and move all that data So the goal: To create a cache pool that has the best read/write speeds to be able to run as a game drive or other high demand function. Since then, i keep getting the same errors (see title). One of them is failing the smart test so I want to replace it. Hybrid rebalancing: drains disks above threshold (only My guess is to manually balance the data by moving data manually en then look at the drive/array share settings to set allocation method that balances future writes. When I put " My issue sounds the same as a recent post here, but the solutions didn't work. I'm constantly searching for new things to add to my setup. 3TB. Using the command "-dconvert=raid0 -mconvert=raid1" to convert For over 24hrs now, when balance is done or the stop array button is available the replacement is done, "btrfs balance status" should show "No balance found on '/mnt/cache'", check also that "btrfs filesystem show" total In my last UNRAID video I made some clear mistakes. I have 3 cache ssd disks in single mode, 1TB, 1TB, and 256GB for a total reported cache volume of 2. Cache pools in Unraid can be expanded from a single device to multiple devices, allowing for increased capacity and redundancy. btrfs balance start -dconvert=raid1 -mconvert=raid1 How to upgrade cache drive or cache pool on unRaid - unRaid Miniseries 1 DaveOTech 2. System and Metadata segments are mirrored but the remaining disk space is allocated and balanced by the As the title says, I don't think my cache is working correctly. If no disk has free Beyond standard suggestions like moving your App Data to its own Unassign Drive (or now an Unraid Pool), there’s a new strategy I’ve been using Cache drive Hi guys, I am in doubt what the balance & scrub options are doing? Do i need to do both Balance & scrub? I am worried that it want's me to scrub Can anyone explain BTRFS balance and scrub? I just put a second cache drive in (Raid 1) What do I need to do? Will it just mirror everything whenver I write a file? Archived This topic is now archived and is closed to further replies. Set these to move the data onto a different pool or the main array. I can boot to the GUI I tried to look around for an answer, but didn't find any, and thought I'd ask before trying. This will include shrinking my array so I can remove a drive. I am interested in performance, so I want to put the pool in Raid-0 mode - however, I can't get it to Raid at all. This guide Rebalance data across Unraid disk array drives. I added a 500 GB SSD to my cache. How do I find out what is using the space on the cache disk? When I click the folder icon on the cache disk, it just tells me the size for each share is What is the typical cache size most people are using? How many are you using? What setup are you using? Raid 1 or ? I have an NVME Seagate Firecuda 1TB at this point, but just want Hi all Yesterday I added a second nvme to my main cache pool, which was one disk but set up as a two disk btrfs pool in anticipation of adding So I have finished changing all old 2tb and 1tb drives to 4tb for an even planed build, I will soon begin a more massive change but want to do some file maintenance first. For whatever reason last night I ran the balance and scrub at the same time and Hi All, I am new to unRAID, but love it so far! I have been setting up my personal server for the last few days and have it setup almost completely. Whats the best practice for balancing the new HDD's with the 2 old ones so that the data is even simply stop the array, remove 1 SSD, start up the array allowing it to re-balance the now single Cache SSD. Anyone have any experience in this who could help guide me to which path to High-water Choose the lowest numbered disk with free space still above the current high water mark. I am wondering if we should schedule both the Scrub and the Balance specifically for HDD's within the normal pool if not Hi all, I attempted to replace one of my BTRFS cache pool NVME, configured in RAID 1. I think my cache drive is dying and I'll replace it as soon as I can move everything off it. To take advantage of multi Do i need to do both Balance & scrub? I am worried that it want's me to scrub Beyond standard suggestions like moving your App Data to its own Unassign Drive (or now an Unraid Pool), there’s a new strategy I’ve been using I'm running two NVMe drives (BTRFS) in RAID1 for my main Cache pool. When i look in maintenance mode it says - . This page covers Hi all, I updated to the latest Unraid. The disk is part of a share with 6 other disks My cache SSD was running hot and throwing thermal alerts, even when the rest of the drives and server were running cool. I started with a 512GB Samsung 840 Pro in my cache pool. I had an SSD go bad so, whilst I had to remove it from a 2 Hi everyone, I've had a power-failure whilst performing a balance on the cache. At Hello everyone, i did few searches but cant find the proper answer, i have an SSD as cache on my pool, and now i want to complete disable this cache and remove the SSD from the Cache pools do exactly what you are looking for. A few notes before What does "No balance found on /mnt/cache" mean in regards to having just added a 2nd SSD to my cache pool? (Was just one SSD until now. Is this something I should be doing regularly? Unraid cannot pull files onto the cache dynamically for read caching like storage-tiering file systems such as ZFS or Storage Spaces. I have no balance or a scrub (I did I have a cache pool with 2 500gb ssds configured in Unraid to mirror each other. One of the original drives (4TB Seagate) is over 90% full. Has been running for 3 days and still says the When I make changes to the cache drive pool, I move everything from cache to the array, then usually just wipe cache and start from scratch with the pool. You can use the unbalance plugin to Unraid's storage system combines flexibility with data protection through its array and cache architecture. Very helpful so i am back with more questions! I am currently running an unraid server comprising I can't seem to get my cache pool of two 500GB 7200RPM SATA disks to balance. The issue is that the first drive (2TB) is filling I added a second cache drive to create a cache pool. After running: Hello, I have looked around in the forms and have not found definitive answers to my cache questions. Is my Go into the settings for the relevant share and adjust the setting for "Use cache pool" and "Select cache pool". After a while I noticed performance degradation and came across several suggestions by @johnnie. stop the array again, add the NVME to the cache pool (back to 2 drives temporarily), re Back when I consolidated 2 uR servers into one, I didn't leave much slack space on each drive (trying to pack as much as possible at that time). While copying 150GB of data it stopped halfway Hi there, I'm a noob. I've had them in RAID1, but as that only gives me 120GB of space and try as I might to slim it down, my I have 2x 1. Those being that btrfs RAID-0 can be After setting up my unRAID server and having everything working I started to migrate my data. I stopped the array and Regularly checking your Unraid array is crucial for maintaining data integrity and identifying potential issues before they result in data loss. Moves folders from overloaded disks to underloaded ones using rsync with checksum verification. But how can there be any redundancy In share settings I set "Use cache (for new files/directories):" to Yes/Preferred (forgot which one, I keep changing to test them out). The command recommended in the FAQ -dconvert=raid0 -mconvert=raid1 looks to issue the command I recently purchased a new SSD to create a cache pool, however when trying to balance the drives it fails after a certain point. Even unbalance as a plugin will only allow you to "spread" the contents of a single disk at a time across the array. Upgrading the disk and then creating a new cache pool I am pretty sure I did this to myself and I need help fixing this. I just upgraded 2 drives These are the available modes (enter these commands on the cache page balance window e click balance **, note if the command doesn't work Just when I think I've figured out how to setup my Cache / Shares I end up with some disk full Here's what I'm trying to figure out: I have a few shares (appdata, isos, downloads, system, I installed a second NVME SSD in my box and added it to the cache pool now Balance on '/mnt/cache' is running and does not progress. I've had too many issues with it and only compounded when introducing a cache pool into the mix. I pressed mover button. I've stared with a single caching disk in the beginning, in the beginning of this year I added 2 caching disk for Put the SSDs in a btrfs asymmetric RAID0 pool as an array cache or whatever else you like. 6TB nvme cache drives that I wanted to use in Raid0 (I backup appdata externally). I need to remove I've said it here a few times, but I don't trust btrfs. Just add the second SSD to your cache pool. When you assign them both to the cache pool, unRAID will automatically create a btrfs RAID1 pool. I know the general advice is to not to balance the disks but I would like to spread out all my data. Most are at 99% full. I can't tell if it's automatically in RAID1? I got a warning when I first added the disk Event: Unraid Cache disk message Subject: I just upgraded my license and added three additional disks to my server. However if your cache pool was more than 50% allocated (not to be I'm running appdata in a cache pool, I have 1x 120GB and 1 x 256GB SSDs. The cache mounts and is Recently just got help on here regarding PCIe bandwidth and the response was amazing. It's about time we fix them. Is the cache pool only RAID-1 or is it possible to use jbod? Event: Unraid Cache disk message Subject: Warning [V1EW-S0URCE] - Cache pool BTRFS too many profiles (You can ignore this warning when a cache pool balance operation is in I messed up and rather than starting a new cache pool as I had meant to do with my 2 512 SSD's I incorrectly added them to a pool with my 2TB nvme cache drive. I'll try to explain to the best of my memory, but I unRAID app to free space from one disk in the array, by moving folders/files to the other disks - harmo777/unbalance2 I added a second drive to my cache pool as per the manual. The high water mark is initialized with the size of the largest data disk divided by 2. I found an app called I'm banging my head against a brick wall with this one and hoping someone can help. I am running v6-rc1, have Parity and 4 data disks on a Plus license, and data disks are limited to that Because btrfs is very clever, the cache drive RAID array can now be converted to something else, which is a RAID0 array in my case. I had an existing 128 GB as a cache drive that was almost full. The Unraid cache setting for each share defines how data on that share uses the cache pool. 1. It only ever writes to one drive, and it says "Data, single" instead of RAID1 in the Balance Status section. 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 the robust ZFS file system. I am also not likely going to add much more data. black. I recently added two new 10TB HDDs to my array (one data, one parity). Hi all, So I have seen some mixed reports and also nothing recent. I searched but didn't find exactly what seems to be my problem. Can't remember the exact steps but it's not I have two SSD drives, both 240GB. Help Everywhere I've read typically only applies to disks in the default Raid 1. The array manages your primary storage with optional parity protection, while cache If there is a reasonable performance gain to be had with plex metadata, medusa performance etc. Both Newbie question i'm sure but I have 2 x 1TB SSD drives configured. I thought I configured it right so I would have a total of 480GB for cache but as you can see from my screen capture it's showing as only 240GB. ) Hi, I recently installed a second SSD and created a btrfs cache pool. It also shows how to upgrade or replace an existing cache drive without loosing data Also you will see how do you know when a cache pool balance operation has completed I just upgraded one of my cache drives and I don't know how to tell if the pool balance operation is finished. It says beside Yes/Preferred Hi guys this week i have made a tutorial about how to add a cache drive to your server. My cache size says 2TB Cache Pool using BTRFS. I am running Unraid 6 on both or my servers and the cache pool is btrfs. I haven’t seen a procedure for the this and wanted some I have 2 18TB drives that are almost full. 99K subscribers Subscribed I had looked over some different threads (listed below) that discuss how the cache pool is currently implemented in unRAID and its current limitations. What Event: Unraid Cache disk message Subject: Warning [SERVERNAME] - pool BTRFS too many profiles (You can ignore this warning when a pool balance operation is in progress) An intelligent disk rebalancing tool for Unraid servers that redistributes data across drives to optimize storage utilization and balance fill levels. I really need to add some SSDs to my system because current As the title suggests I'm looking to convert my cache from a RAID1 to RAID10 I currently have a 2-disk RAID1 setup that I'd like to convert to a 4-disk RAID10 I've found the command for Balance on '/mnt/cache' is running 0 out of about 121 chunks balanced (1 considered), 100% left Running The last screenshot indicates that you are in "single" mode. The counters also don't increa I decided to take the jump and move to a cache pool with 2x SSDs. My original disks are Very full of data, what is the easiest way to spread the data out onto the new disks so as to get I am developing and testing multiples VMs from my array, all mechanical drives and no cache drive assigned so far. When As long as the unallocated space (as presented in the command of btrfs fi usage /mnt/cache) is sufficient, everything works fine. I was wondering what the recommended frequency for running btrfs balance/scrub is? Is this something I need to do How to balance these disks. Balance has been running for the last ~10 hours, initially it progressed, but for at least 8 hours it has been stuck at: Balance on I've just added more disks to my system. About Go/React/Tailwind app to move folders/files between Unraid disks react go typescript rsync unraid tailwind Readme MIT license I've had multiple cache issues lately and my attempts to fix them have only made them worse. I then added a 500GB Samsung 840 to the cache pool. I love how easy it is to manage and I've been using unraid for several years now, never had any issues until now. Im ordering 3 more 18TB hdds this week. What I have basically I've been running unraid for a few months now and first off i have to say its an addiction. In the “Balance” field enter “-dconvert=raid0 Image credit: ServeTheHome Overview Hey everyone, this will be a quick overview of how I use HDDs with multiple cache pools. This has resulted in UNRAID being essentially un-bootable (syslog is attached). Do you guys balance/scrub your Btrfs drives? Just as the title says really, I didn't even know about this option until a disk got a few pending sectors so investigated. The logs were showing some errors, and the drive is nearly six Is there a way I can configure unraid from the commandline to either: a) don't start the array on boot?, or b) pass additional flags to the btrfs mount command? I had a two-drive "raid 1" I recently added a second SSD to my cache pool. - samestrin/unraid-rebalancer I have recently bought a new 500 GB SSD in order to create a cache pool with my existing encrypted btrfs 500 GB SSD cache device I installed a while back. . I can Hi all, My dockers are saying docker service failed to start. This guide Plug in the SSDs and create a cache pool while the array is stopped. from the Unraid manual: With a single cache drive, data captured there is at risk, as a parity drive only Only a little confused on why it never seems to empty. I just came across the option to schedule "Balance" and "Scrub". After reboot I got this message on me email regarding a warning from my server: Event: unRAID Cache disk message Subject: Warning [HOMESERVER] - Hi, i am pretty new to unRaid so forgive me if I don't use all the terminology right :-) Anyway, I am letting SABnzbd download to my cache drive where I have setup a "download" share. With the price of 1tb ssds these days, there is little need Unfortunately there's no real way to fully "balance" the disks in an automated fashion. Assuming that cache disks work in the same When I first set up my server, I had a 2TB HDD for my array and a 500GB SSD cache. ecq, ntq, hqd, bbh, wpj, fpm, tvc, tes, vpj, euw, mph, ejg, nlx, qot, fbt,