Freenas slow disk performance
Freenas slow disk performance. 0 x64 ZFS file system formated The server is using the motherboard's south bridge ICH7R as the disk SATA II controller for connecting 4 disks. 5G 127G - - 30% 42% 1. Specially considering the disks are sleeping almost, the average busy time per disk is 12%, very very low. I tried to configure in a RaidZ, however there was little difference (RaidZ was slightly slower, but not noticeable). 5" Hard Drive Jails SSD - Western Digital Green 2. For example, if you are mixing a slow disk (e. Mar 16, 2019 · Very Slow Disk Performance. 68T 2. I created 2 single disk pool, cacheon (on-disk cache enabled) and cacheoff (on-disk disabled), within each pool, 2 datasets syncon (sync=always) and syncoff (sync=disabled). Is there any way to boost up the performance, so that it touches atleast 90-100 MB/sec. , performance disk) in the same virtual device (vdev), the overall speed will depend on the slowest disk. 51 seconds Jul 7, 2020 · SOMEHOW I got it all working right just last night. But I am getting very slow speed like 30MB/Sec. Performance, capacity and data integrity. 4 Citrix drivers. So block 3 will be getting prefetched by disk following the read of block 1, while block 2 was being read. First question: My Windows system has 3GB Feb 26, 2020 · Using a mirrored RAID2Z array with a SSD Log drive, Read performance is still ‘slow’ at 224 MB/s compared to the 348MB/s on the physical server. 00x ONLINE /mnt SSD 220G 93. The purpose of the VM is to run a burp backup server. 19T - - 25% 79% 1. Thread starter Chavell3_84; Start date Dec 9, 2020; C. You could also setup a storage server like FreeNAS or similar, and run ZFS (no RAID controller needed, just onboard SATA ports or an HBA for additional ports) and share the resulting disks over iSCSI. . My Linux VM has a VirtIO Disk and it runs quite good. FredFerrell: Is there any chance that the file used for the read test is on the SSD cache and not the spinning disks? Jul 21, 2016 · If synchronous, then the client will wait for FreeNAS to report back that zfs has committed the write to disk before continuing. Feb 27, 2020 · Using a mirrored RAID2Z array with a SSD Log drive, Read performance is still ‘slow’ at 224 MB/s compared to the 348MB/s on the physical server. 00x ONLINE - root@freenas:~ # zpool status pool: Opslag state: ONLINE scan: scrub canceled on Sun Feb 10 Sep 25, 2019 · First post here. Woogi February 17, 2020, 2:19pm 5. Here my setup: # FreeNas on VM within Hyper-V -> all installed perfectly fine and the setup was smooth # 4x 4TB WD Re Enterprise disks (single I am still having performance issues with FreeNAS. Get ready to rev up your FreeNAS and leave lag in the dust. 5 Megabytes @ 13. Nov 29, 2016 · TBH you need to invest in a RAID controller and setup RAID10 locally for the spinning disks. The burp server stores the backup on this mount. So what you're seeing in the iSCSI write test is probably the actual sequential disk write performance of your NAS, because your iSCSI target writes directly to disk (no write caching) while samba does not (and this is where it's very important to use a big enough dataset). FredFerrell: Is there any chance that the file used for the read test is on the SSD cache and not the spinning disks? Dec 23, 2015 · All it takes is one flaky drive with few bad sectors to slow things down to a crawl, so check gstat output for drives that have unusually high response time. 10 slow performance as its more of a ZFS thing. Mar 16, 2019 · FreeNAS RAM acts as a cache and the transfer goes fast until RAM is filled, then it goes slow because it is waiting for the disk to catch up. 8 gpbs between Freenas and Xenserver, and the simply using DD comand, the speeds are much more in Mar 4, 2021 · Truenas VM 1 has: Sas2308 - 20. 1 Flash Drive Data Disk - qty 2 4TB HGST HMS5C4040BLE640 4TB 64MB SATA III 6Gb/s 3. 36 Megabytes @ 13. Apr 26, 2015 · I found strange that the speed on the disk is slow (27309) and the disk is full busy (97. Jun 11, 2012 · FreeNAS has a property called "sync" and it can be set on or off. Raid1 on the other hand has fantastic integrity and fast reads, but slow writes (multiple copies) and has limited capacity. 1 Citrix drivers and I started getting the speeds I thought I should be getting. Feb 17, 2020 · Using a mirrored RAID2Z array with a SSD Log drive, Read performance is still ‘slow’ at 224 MB/s compared to the 348MB/s on the physical server. Chavell3_84 using ESXi and running pfSense alongside FreeNAS (separate Dual Intel Apr 13, 2018 · Hello, I am free to FreeNAS and so far really like the product. Hello, I have a VM running on my freenas box. It will show you if any of them are under performing. I have verified with iperf that I am getting ~8. Its booted from two SSDs plugged into the mobo SATA ports, 75GB each. When a client is backuping, I I am a bit sad about all my data being accessible only that slow. Raids have three main advantages over using a single disk. How can I install fio (or similar) locally on freenas to get this to work? Feb 17, 2020 · Using a mirrored RAID2Z array with a SSD Log drive, Read performance is still ‘slow’ at 224 MB/s compared to the 348MB/s on the physical server. Thread starter qxotic; Start date Mar 16 If transfer is still slow, the issue is somewhere with FreeNAS or the FreeNAS/host Oct 29, 2020 · Neither of these columns include disk service time. 9gb/s This would explain why I am seeing at most, 400mb/s disk speeds. But blocks 1 and 3 have a pretty good chance of having been written in adjecent locations on disk (unless the disk was getting very full). Oct 5, 2015 · The problem is in fact in the performance, using the ATTO disk benchmark on the new SAN volume I can only get around 200MB/sec. omgdave is giving you some solid suggestions, though I'm guessing you're not comfortable enough with UNIX to confidently try some of them. 1 For example, raid0 is both fast and has the highest capacity, but absolutely no data integrity. "zfs sync=always" is set by default and causes every write to be flushed. Sep 1, 2019 · Hmm, maybe this is related to the disk device type. FredFerrell: Is there any chance that the file used for the read test is on the SSD cache and not the spinning disks? Sep 15, 2013 · FreeNAS Server Hardware Spec: Motherboard = PDSME CPU = Pentium D930 3. I have a 10Gbe Fibre point-to-point network between my FreeNAS box (i3, 16GB RAM, 6 3TB Seagate drives), and my VM host running Hyper-V. 7 to 1. @FredFerrell - I dont believe this to be the issue. 00x ONLINE /mnt freenas-boot 111G 768M 110G - - - 0% 1. Apr 13, 2020 · Very Slow Disk Performance Trying FreeNAS for first time. I was wondering if you were able to figure out where the bottleneck was in your setup. Sep 1, 2019 · Hi All I am running: FreeNAS-11. My one volume is configured in a Stripe. I, personally, use a slog that would give heart attacks. 4TiB free is now horrible in performance. Your backplane being saturated will reduce your upper disk speeds. 00. Also, different hard drives may have different sector size. 2-U4. @FredFerrell - Do you mean on the physical server? Feb 24, 2020 · Freenas NIC; Either DAC Cable; 10GB Unifi Switch; And since a physical box is able to write to the Freenas box a lot faster, I am ASSUMING that, at least right now, my performance is not my disk or layout configuration? Feb 17, 2020 · @LTS_Tom - That was my understanding as well, but I figured it couldn’t hurt. I have two identical ssds and it does this with both of them. Keep an eye on CPU usage to ensure that it’s not maxing out, which can slow down data transfer speeds. I loaded the 8. Dec 22, 2019 · If you have a slow USB boot device (maybe it has become slow over the years due to wear) this is the time to replace it to an SSD boot device. Built low end system (just a bit better hardware than low end Synology that can be a plex server) using ASRock J4105-ITX and 16G of ram. Feb 16, 2020 · I have setup my XCP server (specs below) and Freenas using both NFS and ISCSI over 10gb. Although I also installed the testing drivers (on each host) from here around the same time. 6) with this speed. Plus it's old and slow these days. By integrating SSDs into your FreeNAS setup, you can capitalize on their high read and write speeds, thereby reducing data access latency. VM Speeds - ISCSI w/ Cache Drive Feb 17, 2020 · @LTS_Tom - That was my understanding as well, but I figured it couldn’t hurt. Nov 25, 2013 · Dedicated 1Gbps network between host and FreeNAS box. Update: Using a mirrored RAID2Z array with a SSD Log drive, Read performance is still ‘slow’ at 224 MB/s compared to the 348MB/s on the physical server. @FredFerrell - Do you mean on the physical server? Feb 24, 2020 · Freenas NIC; Either DAC Cable; 10GB Unifi Switch; And since a physical box is able to write to the Freenas box a lot faster, I am ASSUMING that, at least right now, my performance is not my disk or layout configuration? Feb 27, 2020 · Using a mirrored RAID2Z array with a SSD Log drive, Read performance is still ‘slow’ at 224 MB/s compared to the 348MB/s on the physical server. Dec 2, 2021 · I have reset the controller to defaults, initialized the SSD, tried server 2012 r2 and win 10 pro. The disk performance just stinks. Finally, scrub wait and trim wait are exactly what they sound like: time spent in either scrub or trim queues. 8 gpbs between Freenas and Xenserver, and the simply using DD comand, the speeds are much more in Jul 7, 2020 · SOMEHOW I got it all working right just last night. You can evaluate FreeNAS performance by monitoring various system metrics. FredFerrell: Is there any chance that the file used for the read test is on the SSD cache and not the spinning disks? Apr 15, 2021 · Hello, So I recently got a warning from TrueNAS: "WARNING Device /dev/gptid/472b0daa-282e-11e8-8752-002590a63a4f. CPU usage is very low, memory is plenty for this volume size, disks are not maxed out, not even close. **** LATENCY AT 4K WRITES **** is the LARGEST dictator of slog performance. I am using FreeNAS-9. And while I have been able to improve my write speeds on the VM to much faster than the current phyical machine is writing to its own RAID 5, my read speeds are suffering. ) NIC = Intel 82573 PCI-E Gigabit Ethernet OS = FreeNAS v9. It has: Intel(R) Xeon(R) CPU E5640 @ 2. 07 IT - Sas9206-16e IOM6 Netapp1 disk shelf two pools, similar performance: Pool 1 - 6x8tb Z2 - 2963. Utilize SSDs to significantly enhance data transfer speeds in FreeNAS, ensuring rapid access to critical files and improved overall system performance. I was using the older 7. My thought was something else that was being done by the FreeNAS VM was hogging other resources and causing a bottleneck. I am trying to get FIO or similar software to run on freenas am failing. Total_wait is the average total I/O time, including both queuing and disk I/O time. 67GHz (16 cores) 32 GiB RAM 12 Disk pool, two RAIDZ2's with 6 disks each, each disk is a 2TB WD Red. 2-Release-U1 currently. I had a system where three drives were running slow and after I replaced them, it more than doubled the performance of the pool. Compression is disabled in all datasets. These are so inexpensive now that here in Denmark I could buy two 120 GB Kingston SSDNow A400 drives and a SATA power splitter for 400 DKK ≈ 59,50 USD ≈ 53,50 EUR. FredFerrell: Is there any chance that the file used for the read test is on the SSD cache and not the spinning disks? Oct 25, 2021 · @c77dk @Samuel Tai I have a hard time accepting that the fact that a pool is with 1. Disk_wait is the average disk I/O time spent reading/writing to the disk. A single slow drive in a RAIDz2 vdev can slow the vdev, which will slow the pool. I think it may have something to do with the VM drivers. Unfortunately i'm having some performance issues, but they only seem to occur when writing to the array. The total process can't finish until everything has flushed from RAM to disk on the FreeNAS side. eli is causing slow I/O on pool SengokuNadeko" So from a similar thread on the forum I can tell that its probably because one of my disks is SMR, but how do I translate that Mar 16, 2019 · FreeNAS system MB - ASRock J4105-ITX CPU - Celeron J4105 RAM - 16GB G Skill SO-DIMM DDR4 F4-2133C15D OS disk - Samsung MUF-32AB/AM FIT Plus 32GB - 200MB/s USB 3. At the end of the resilver : pool: VolRaidZ state: ONLINE Aug 18, 2017 · See post #6 for an updated status. 0GHz dual core 775 socket RAM = 8GB DDR2 (max. However, I try I am experiencing unexpectedly slow read performance from my HDDs. This is a second disk (Seagate nas HDD 3TB) and the disk is new and tested (also speed). Mar 23, 2018 · You'll read block 1 from disk 1, block 2 from disk 2, block 3 from disk 1, etc. I have tried to install windows 10 multiple times with the virtio disk driver but when selecting it on setup Nov 5, 2021 · Hi everyone, creating a new thread to focus on the disk part of the problem - All replications are slow: 0. Feb 17, 2020 · @LTS_Tom - That was my understanding as well, but I figured it couldn’t hurt. I just added an 850 Evo 120GB as SLOG/L2ARC (30 GB for SLOG), and then set iSCSI and NFS partitions to sync=always. Inside the VM, I mounted my dataset with a SMB share hosted by the same NAS. 49 seconds Pool 2 - 4x10tb Z1 - 2961. 4 gigabits/s - Same server replication from SSD to SSD (A) and (D) is SLOWER than SSD to HDD (B) and (E) - Cross server replication from SSD to SSD (C) shows same results as same Mar 30, 2017 · Edit: I should really have titled this thread ZFS slow performance not FreeNAS 9. I have done some tests to find the issue: Network test, from FreeNAS to my PC and from my PC to FreeNAS. Feb 24, 2020 · Freenas NIC; Either DAC Cable; 10GB Unifi Switch; And since a physical box is able to write to the Freenas box a lot faster, I am ASSUMING that, at least right now, my performance is not my disk or layout configuration? Feb 10, 2019 · root@freenas:~ # zpool list NAME SIZE ALLOC FREE CKPOINT EXPANDSZ FRAG CAP DEDUP HEALTH ALTROOT Opslag 10. Same thing last time with other disk: on rebuild, the disk was full busy with slow write. 9T 8. So I added too many variables to know which one it was Feb 24, 2020 · And just to be clear, the performance on the Pool itself has been as expected, its only when using the pool for VMs that it suffers. Sep 19, 2019 · Second, your iSCSI target probably uses write-through. * I recognize that, if it is somehow smbd limiting performance, more cores will do nothing as smbd is single-threaded. dd is a UNIX command that omgdave is telling you to run via command line (use the "Shell" option on the left side of the FreeNAS GUI). In the Physical server, I am using a dell H200 with 3Gbps drives, vs the H310 with 6gbps drives in the Freenas box. I'm running an 8 disk raidz2 configuration on Freenas. In my test, I migrated a VM from local storage in the ESXi host (which is a SAS 10k disk - No RAID) to the FreeNAS box via NFS. 33GHz 16GB ECC P400 (512MB w/BBC) with 8x72GB 10K (RAID5) P800 (512MB w/BBC) with 10x146GB 10K in SAS enclosure (RAID5) HP MSA70 SAS attached drive enclosure dual Broadcom 5709 Jun 26, 2020 · @Woogi I recently got a pair of HP DL360p gen8 servers, made a storage server with a 10 2TB drives with a HBA and I am running into this same 3 GB/s one way bottleneck from a XCP-NG VM to my FreeNAS server. This dramatically slows performance but guarantees disk writes. 2. , green disk) and a fast disk(e. If the FC card is 4GB, shouldn't be more close to the 400mb/sec? Having in mind that the SSD is not a bottleneck, Im only guessing the FC card is the bottleneck here, but still dont know why. 1. In general, I would recommend upgrading to FreeNAS 9 which is based on FreeBSD-9 as there are a lot of ZFS improvements that didn't make it into FreeBSD-8 (and thus into FreeNAS) May 10, 2019 · The system is running FreeNAS-11. Sequential writes tested using dd result in a write speed between 25MB/s & 40MB/s. 5" 120GB SATA3 SSD WDS120G1G0A FreeNAS-11. Mirror A = 2TB WD20EARX x 2 Feb 14, 2020 · I want to test out the performance of the local disk storage and eliminate the network in doing so. Oh well :) This is not a question, just a log of a recent event I had with my server that I thought I would share for 2 reasons: As a log/reference for others if Sep 29, 2018 · Now with this sorted out, I decided to do some simple testing to see its impact on ZFS performance which I would like to share. Build: Intel(R) Celeron(R) CPU J3455 @ 1. 2-RELEASE-x64. Let’s dive in and supercharge your storage performance! Understanding FreeNAS Performance Metrics. Committing a write to disk for a small block of data is very time consuming, so zfs likes to collect a bunch of smaller asynchronous writes and commit them to disk as a single larger stream. I have started encountering a VERY annoying problem which I can't solve after a LOT of troubleshooting. I've been playing with my new Freenas server for a while, tweaking it, and so far, performance is terrific (I kinda overkilled it for my needs but that doesn't matter). 1 E3-1230 V2 (4 core 8 thread) 2 x 8GB DDR3 ECC RAM PCIe SSD for VM zvol VM: Win 10 2vCPU 4GB RAM Fresh install of Win 10 (latest build, ISO created with Windows media creation tool) Saw that there were issues with e1000 LAN adapter, so switched to VirtIO Apr 24, 2014 · Hi, I am trying to copy some 300 GB's of files to the FreeNAS system. 2-U2. Dec 9, 2020 · slow disk performance. g. At the end of the resilver : pool: VolRaidZ state: ONLINE I am a bit sad about all my data being accessible only that slow. You don't need something that can write 1. Feb 17, 2020 · Slow VM Disk Performance (XCP-Freenas) Computer Hardware & Server Infrastructure Builds. Aug 25, 2014 · Mixing different disks of different models/manufacturers can bring performance penalty. Jun 15, 2020 · I tried tossing more cores at the FreeNAS VM (Ubuntu already had 6 cores) but no change in performance. 2million IOPS at 1ms, you need something that can write a 4k IO in 1ns. Oct 4, 2018 · The problem is that I get really slow data transfer from FreeNAS samba share to my PC, slower than 50MB/sec. The controller also has a 14 drive raid 50 which is slightly less slow but still slow. FredFerrell: Is there any chance that the file used for the read test is on the SSD cache and not the spinning disks? Feb 26, 2020 · So here is an odd update mabye? iperf3 from VM to Freenas, over 10gb link, is peaking @ less 3gb/s iperf from VM Host to Freenas over SAME 10gb link, 8. Aug 28, 2014 · -Can I use any DD (disk performance tools in FreeNAS) with no UFS volumes? Current Infrastructure: FreeNAS Platform: HP DL 380 G5 (x2) Intel(R) Xeon(R) CPU E5410 @ 2. 50GHz 16GB RAM SSD for boot disk, 6x4TB WD RED (not affected by the famous bug) I see ZFS cache filling up all available RAM whenever my Proxmox host does backups for exampleor if anything above the cache size gets written/read(!). Feb 26, 2020 · Freenas NIC; Either DAC Cable; 10GB Unifi Switch; And since a physical box is able to write to the Freenas box a lot faster, I am ASSUMING that, at least right now, my performance is not my disk or layout configuration? Feb 26, 2019 · You might want to try this utility to test the performance of the drives. The Windows VM has a AHCI disk, maybe that is the cause? That is most likely it. vkdvq dnm dgp mkbw qlc aorud fhg mbsb wpt vzcr