No, Unraid /does/ offer real time raid. So, if one of the cache drives fails before the data was transfer to the data drives, the data is still saved on the other drive. (see the Docker intro thread on unRaid forms for full details.) The concept turns up all through information technology in a number of different contexts and physical implementations. You can setup a pool of SSD drives and tell different "shares" (think a folder than can span 1 more drives based on rules you set) to use that pool (BTRFS raid-1-type pool, so 2x1TB SSDs = 1TB cache pool). I was thinking about how to best utilize these disks and I think I've landed on adding a separate cache pool for current assets in a raid 0. Here's how!Kingston SSD: https://amzn.to/38w8JlsSilicon Power SSD: https://amzn.to/37u5J82M.. For cache, you can set up several drives. You can also setup a RAID 0 or RAID 10 cache in Unraid if you are dead set on maximizing every drop of performance. UnRAID is a GNU/Linux-based server solution. Any reason for this half size? With your array stopped, use the Unraid UI to create a new Cache Pool, call it 'temp' or similar. 3x120mm fans on intake though the front. Manual/Shares - Unraid | Docs Any of these pools can act act as a cache in the way Unraid uses the term. After the cache is created you have the process right. Hi all, I was just digging through some of the settings on my Unraid box and noticed that my AppData folder is set to use Cache Prefer. size of BBWC and mode it is running in. The second was the expandability by a single drive vs ZFS/freenas, I didnt want to have to replace every drive with a larger one or create a new pool with an equivalent amount of drives (which I likely . Slow drive speeds on Windows 10 VM in UnRAID - Servers and ... Cache drive pool size : unRAID - reddit My appdata share is set for Prefer on Nvme_cache pool. There is something wrong. Btrfs is a new filesystem to unRaid and supports 'copy on write' which enables Docker utilise minimal hard drive space. Or is this more likely a ventilation issue (or other)? How to upgrade cache drive or cache pool on unRaid ... I have 2 4tb ssds that I was using in my editing desktop for assets. Being able to see my CPU/MOBO temp directly from my main dashboard, is actually quite satisfying. This is relevant for your Unraid system as it allows you to configure cache pools as RAID 1 for data mirroring or RAID 0 for speed. Dynamix System Temperature. Unraid includes an application called mover that is used in conjunction with User Shares. Fix . The UnRAID Story (Chapter 4): Time to Cache In. Setup a user share on unRAID (if you're using unRAID 6. This is to increase performance to applications that live in that pool as Docker Containers or Virtual Machines. Unraid Linux Unraid Linux. Unraid | Unraid 6.9 and Multiple Pools This plugin adds the option right under the settings -> schedules. It's behavior controlled by the "Use Cache for new files" setting under each . Check cache pool. Contents 1 Overview A future release will include support for multiple "Unraid array" pools, and several other pool types. That was actually one of the two biggest reasons I went with unraid, that you DONT actually lose the whole data pool even if 3+ drives fail. speed after 2TB: 100MBs/. Having run with a only 60gb cache pool (60gb & 120gb) for a few days i know both the value of having a larger . Cache Setup. Unraid also gives you the ability to install Docker Apps. For cache, you can set up several drives. What is Unraid Share Cache Settings. No, Unraid /does/ offer real time raid. Check cache pool. Is there any drawback to this? For example, if you set up 2 SSDs of 250 GB each, Unraid by default sets the cache to RAID1, which means that one of the drives would mirror the other one. Cache drive pool size. Here are just some of the benefits: Improved Data Protection - With a single cache device, there's a possibility that you can lose your data if the device fails before the data gets moved to the array. 1x140mm intake underneath. 2x 500gb Sata SSD - Appdata cache pool mirrored. Having run with a only 60gb cache pool (60gb & 120gb) for a few days i know both the value of having a larger . The cache disk feature of unRAID greatly increases the perceived performance of the system when writing data to a parity-protected array. So, if one of the cache drives fails before the data was transfer to the data drives, the data is still saved on the other drive. The current "cache pool" is now simply a pool named "cache". Hi guys, would appreciate some feedback on something Im considering. When you assign them both to the cache pool, unRAID will automatically create a btrfs RAID1 pool. In this video, I'm going to show you how to get started with Unraid. I've moved away from the desktop to a mac mini and a windows laptop. Btrfs is the only option if you want to use multiple drives in your Unraid cache pool. You can setup a pool of SSD drives and tell different "shares" (think a folder than can span 1 more drives based on rules you set) to use that pool (BTRFS raid-1-type pool, so 2x1TB SSDs = 1TB cache pool). But the total pool size is listed at 200g. Unraid Share Cache Settings. Note: When you upgrade a server which has a cache pool defined, a backup of config/disk.cfg will be saved to config/disk.cfg.bak, and then cache device assignment settings are moved out of disk.cfg and into a new file, config/pools . That means your drives will give you a 500GB mirrored cache. Unraid came up with the idea of a 'cache disk' to make up for its poor performance when writing directly to the array. It is particularly useful for users who write data to the array on a regular basis, and can also be used as a scratch disc for certain applications. Download Unraid; Open the USB Creator to set up Unraid on your flash drive (1GB minimum to Max 32GB) Click 'Customize' to give your Unraid server a name; Give it a Static IP if you desire; Reboot and set BOOT to the flash drive in the BIOS; Once booted up, it should display a 192.168.x.x IP Address. if you have the drive(s) you just turn on the cache in settings and point the system to the drives be used for cache. Initially, Unraid will place the SSDs into RAID-1 for redundancy so the new temp volume will look half the size of the combined drives. About Cache Unraid Share Settings . 1,404. If your library is on local disk, tell PhotoStructure: Go to the docker tag in the Unraid web UI, click the PhotoStructure icon by the docker container, and click Edit: Mover can never move files off a cache pool as fast as a user can potentially write to it. Application Server Traditional NAS solutions to application support come with three primary limitations: Have: Unraid server (latest Rev of 6. Unraid's NAS functionality consists of a parity-protected array, user shares, and an optional cache pool. I've moved away from the desktop to a mac mini and a windows laptop. While Unraid excels at growing a heterogenous storage array over time, these mismatched disks will not handle writes as fast as a homogenous array of fast ZFS disks on FreeNAS for example. Unraid OS Pro supports up to 30 storage devices in the parity-protected array (28 data and 2 parity) and up to 35 named pools, of up to 30 storage devices in the cache pool (s). When unRAID writes a file to a user share, it writes it in accordance with the Use cache settings for that share. Users in Unraid are used to define access credentials for Shares. Initially, Unraid will place the SSDs into RAID-1 for redundancy so the new temp volume will look half the size of the combined drives. Registration must be started from your Unraid webgui. (see the Docker intro thread on unRaid forms for full details.) Several users have found problems when using Unraid's cache pool for their library storage. For example, if you set up 2 SSDs of 250 GB each, Unraid by default sets the cache to RAID1, which means that one of the drives would mirror the other one. Dynamix System Statistics. There's help on the page itself that tells you what they all do. -d /mnt/user0 ]; then exit 0 fi # If the mover is . With your array stopped, use the Unraid UI to create a new Cache Pool, call it 'temp' or similar. Oh, and it runs off of a flash drive and RAM. However, Unraid allows support of a cache pool which can dramatically speed up the write performance. No and Prefer seem to work OK, and Yes is problematic. The private bridge generates an internal DHCP server/address pool to create IPs for VMs automatically, but the VMs will be on a subnet that cannot be accessed by other devices or even other services on Unraid. Want to upgrade? After a day or two it sent me an alert about one of the SSDs missing so replaced one of them with a spare 128gb. This happens frequently. The "sync" command you are talking about is related to the cache drives. Just click on Use cache disk: All this is transparent to the users. For cache, you can set up several drives. 3x 10TB WD Red - Array Storage. So if you want to have any sort of protection for the data on the cache, you'd be best to make the cache out of two or more SSDs and let unraid mirror them. See the above section for my advice on which shares should leverage the cache. I noticed on Facebook that 12 months from today's date I booted up my very first unRAID server with a single M. 2Tb SAS 2 x 1Tb SAS 2 x 600Gb SAS 6 x 500Gb SAS Also fitted is a 2Tb SAS parity disk and a 1.--Update (5/1/19): I added a 1TB SSD as a cache drive. So at the moment I'm using two 256GB SSDs as cache pool. If you did and you received this message please contact support. All 4 drives are listed as part of the pool. I love data. ich habe…. Finally, go back to the Share Settings page; for each share: change from cache-prefer back to cache-only if desired Several users have found problems when using Unraid's cache pool for their library storage. Unraid Cache Drive Xfs Vs Btrfs. I'm considering moving on of my UnRAID arrays to SnapRAID as a temporary test and wonder about read/write performance to the array since I have 10Gb networking. The word cache therefore is referring to this functionality and not necessarily to the pool name. All users are highly encouraged to update. Currently I have a RAID0 cache pool on both my arrays so I can come pretty close to saturating my 10Gb link between the two. Location: Melb. Adding a cache pool for editing. Stop Docker and the VM service; Click "Move" which will move all the shares intended to be on the cache, on to the cache. The easiest way is probably just to create share folders that match the ones you have on openmediavault. It's similar to using MergerFS and SnapRAID, but with a slight difference. 1x 500gb NVME for download cache. 2. level 1. jkirkcaldy. The one thing Unraid does not do out of the box- is support for SSD trim. unRAID: Storing Containers, Appdata and VMs on an Unassigned Device By far, the most common configuration for unRAID users is to store their docker containers, appdata, and VM data on the Cache drive, which is typically an SSD. 6 TB PCI-E NVME Solid State Drive for AppData ( link ) ( spec link ) and a 500GB SSD for cache. If you want the full TB of space then you can change the RAID method in the settings of the pool. Use Cache Drive is set to PREFER. The public bridge (br0) can be created through the Network Settings page on the Unraid webGui. Assign both your new SSD drives to this new cache pool. -d /mnt/cache -o ! 8. If you don't set cache only, then it means all writes happen in the cache, and then transparently, unRAID will move it from the cache to the pool "later" (not sure when later is). I started with a single Kingston SSD, but added a 2nd to make a redundant pair. Go back to the Share Settings page; for each above share: change from cache-yes to cache-prefer; 7. adventures in unraid July 2021 / tech As part of my pandemic coping, I started upgrading a PC I'd had for a few years. On the Main page click the Move button. When my cache disk is heavily used, I get a set or notifications - it's hot. I have a F40 SSD card for a cache drive; it is seen as 4x 100g drives. Configuring Cache on your ZFS pool. Use Read Only shares whenever possible! and then back to normal. Here is an example. Unraid backup appdata. 1x 2TB NVME for VM storage and installs. T. he word "cache" comes from the French, cacher, meaning "to hide". Finally, go back to the Share Settings page; for each share: change from cache-prefer back to cache-only if desired 2m. But when i show in de documentation and on my Cache Info. Many users leverage SSDs for the cache pool in Unraid 6. Je galère un peu, la documentation UNRAID n'est pas à jour. I have 2 4tb ssds that I was using in my editing desktop for assets. See full list on unraid-guides. This may be needed if you have an older twrp and/or want to. Hi guys, I've just moved over from Synology to unRAID but only had a couple of 60GB SSDs on hand. Cache Settings. Also i think aobut it from the read/write Operations in the first Scr. On the Main page click the Move button. Hi guys, I've just moved over from Synology to unRAID but only had a couple of 60GB SSDs on hand. A multiple-device pool may only be formatted with btrfs. We are also gonna go o. You can setup a pool of SSD drives and tell different "shares" (think a folder than can span 1 more drives based on rules you set) to use that pool (BTRFS raid-1-type pool, so 2x1TB SSDs = 1TB cache pool). However, given that most users only have a 1gbps network, those SSDs are never really pushed when it comes to performance. My existing cache drive was a seagate 500GB and . Hi all I added a second Disk to the Cache. 簡單的說ZFS 適合大型的 storage, 而 BtrFS 只適合 1~4 個 HD 的 storage. Separate Storage for Caching, VMs, and Containers. The "sync" command you are talking about is related to the cache drives. With a single pool, the same underlying storage for your VMs and containers is being used to provide a cache for your data written to . Having upgraded to unRaid 6 beta7, I've started having a look into the new Docker support.In unRaid, Docker needs to be installed on a btrfs volume or pool. My Configuration looks like: I think this is not in raid 1 mode. You can setup a pool of SSD drives and tell different "shares" (think a folder than can span 1 more drives based on rules you set) to use that pool (BTRFS raid-1-type pool, so 2x1TB SSDs = 1TB cache pool). A single-device pool may be formatted with either xfs, btrfs, or (deprecated) reiserfs. In Unraid if you run the command " lsblk -D", if the Disc-Max column has a 0B next to the drive in question, then it does not support trim. Assign both your new SSD drives to this new cache pool. Btrfs is a new filesystem to unRaid and supports 'copy on write' which enables Docker utilise minimal hard drive space. The NVME drives in question here, do in fact have trim/discard support because in column Disc-Max, they have 2T listed. This will move the data of each share back to the pool. Does this likely need to be replaced? Unraid has the ability to create a cache pool of multiple SSDs, which uses btrfs or butter fs. Is there any drawback to this? It's fantastic. The assigned pool functions identically to current cache pool operation. 1,404. Now i have two Disks in my Cache. Here is an example. #!/bin/bash # This unRAID bash script will run the mover if the cache drive is over a certain percentage full # Modify the value to set what percentage is the threshold to start the mover SETPOINT=80 # Only run script if cache disk enabled and in use (script chunk taken from stock mover script at /usr/local/sbin/mover) if [ ! Open up Unraid, click on the Shares tab then click Add Share: On the Share Settings page, fill out Share name and Comments and click Add Share: Once this share has been created, I recommend creating folders that separate the type of media content you wish to store. 6. Location: Melb. Unraid will move those files over to hard drives. What makes Btrfs the perfect system for cache pools is the fact that it supports various levels of RAID in multi-drive mode. Now again, if you are looking for ultimate speed, you should instead be using NVMe or SSDs in cache, preferably 1TB drives at a minimum because they typically have larger on-board cache. Then at a later time (3:40 AM PST by default), unRAID moves the files from the cache to the array automatically. If your library is on local disk, tell PhotoStructure: Go to the docker tag in the Unraid web UI, click the PhotoStructure icon by the docker container, and click Edit: 8. The feature was introduced in version 4.3. For this reason it is typically recommended that User Shares are set to not use a cache pool during the initial load of data into a new Unraid system as this is almost certainly to be more than the cache pool can handle so the benefit is marginal at best. It also supports Docker and KVM through a nice and easy-to-use web-ui. This will move the data of each share back to the pool. But these all share the idea that something—usually a set of binary data—is being kept somewhere . No, Unraid /does/ offer real time raid. Originally Posted by stuckless. By creating a cache pool, you can use a smaller volume of devices in a more traditional RAID setting to accelerate write performance to shares. I've set up Unraid as a 4-disk pool for a cache drive; it correctly sees all 4 drives as 100g. Adding a cache pool for editing. So what does this new functionality offer? The unRAID cache pool is created through a unique twist on traditional RAID 1. Run the following command in an SSH session to your unRAID server. Are there more data I should collect? After a day or two it sent me an alert about one of the SSDs missing so replaced one of them with a spare 128gb. Implements data redundancy and parity in a slick way, would appreciate some on. 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