performance

  1. gb00s

    IB - CPU Frequency Mismatches - Sun Falcon (Mellanox MHRH2A-XSR)

    I have a little issue while testing InfiniBand connections. While system (Bios-wise) is set to performance and the CPU governance is set to performance, I still receive the message/alert/warning of CPU frequency mismatches. Both CPU's are E5-2673v3's. The cards are old 10EUR eBay findings of SUN...
  2. BoredSysadmin

    RDMA(RoCE v2) with Nutanix 7-8 nodes Cluster

    Hello, I am seeking advice or consensus if we should try to engineer our Nutanix cluster with RDMA. It stands now the nodes are fairly beefy: Each node is 2x 6226R and 1.5TB ram each,12x3.84TB SAS12 SSDs (no NVME drives). The load is a mixed server load, various biz apps, SQL databases, some...
  3. T

    Disk Read Write Speed ESXi / Synology NAS

    Setting up a new home lab - currently I have a single PowerEdge R630 which boots ESXi from thumbdrive. PowerEdge is connected to Synology 1819+ with 10GBE - iSCSI provided datastore. I have installed Windows Server 2016 VM (2vCPU, 4GB RAM) and have used the PVCSI disk driver and installed VM...
  4. L

    Relationship between Cache, Storage Density, Rotational Speed and PMR / SMR

    Seems the SMR drives have inflated cache to compensate for lower performance. The SMR drives however have really appealing densities and form factors (4tb in a 2.5” package, that’d be 96tb in a 2U 24 bay Supermicro chassis). So, first question: are they really so bad? I’m guessing the response...
  5. L

    SSD fast in ESXi and Windows slow in Linux

    Upgrading parts of my homelab and doing some storage tests using sysbench: sysbench --test=fileio --file-total-size=64G prepare sysbench --test=fileio --file-total-size=64G --file-test-mode=rndrw --max-time=300 --max-requests=0 run sysbench --test=fileio --file-total-size=64G cleanup I'm...
  6. S

    Ceph low performance

    Hello, We have a seperate Ceph cluster and Proxmox Cluster (seperate server nodes), i want to know if the performance we get is normal or not, my thought was that the performance could be way better with the hardware we are using. So is there any way we can improve with configuration changes...
  7. D

    Windows performance on Proxmox - sanity check

    Hello STH forum, I have a question about running Windows on Proxmox because this is giving me a bad time so far. I'm asking here at STH first because it seems to me there is more technical knowledge on STH than on the Proxmox forums. Some relevant specs of the box I'm running this on: Intel...
  8. A

    QDR Mellanox Performance Test Results with Varying BAR-space Size

    System: Desktop (headnode): I7-5960X, GA-X99-SLI motherboard Server (slave nodes): 6027TR-HTR (four X9DRT-HF). Only using one node for this testing. 2x E5-2667 V2 OS: CentOS 7.5 with Infiniband Support and various other packages. No custom OFED installs. HCAs: One Sun/Oracle X4242A QDR...
  9. altano

    Finding my ZFS bottleneck

    Sequential read speeds on my ZFS pool (4 vdevs, each a 2 x 6TB mirror) are not where I'd like them to be, at 80 - 130MB/S when moving large files around. My two main use cases for the pool are hosting VMs and moving large video files around. The VMs are performing fine but I'd like faster video...
  10. T

    Epyc ZFS Server - NVMe vs. SATA/SAS

    I'm a big fan of AMD's new processors. My Threadripper workstation is great, and I've been toying around with the idea of building an Epyc server that would run storage (appr. 15 TB needed) and my VMs here (mail server, web server, Plex, a bit of minecraft for the nippers... ;)) Liking the...
  11. C

    FreeNAS support and experience with HGST Ultrastar He12

    Hi everyone, I am building a ~100TB box with a Quanta D51BV-2U. This is a 12-slot chassis and for a client in the CG/Animation space. The drive I plan to use will be HGST Ultrastar He12 (P/N: HUH721212ALE600 or LE604). I have not seen anyone using this drive with FreeNAS and I seek those who...
  12. C

    Looking for a simple webbased Linux server monitoring tool?

    Hello, At home I run different test / live web application on Ubuntu web servers installed as virtual machines. Last time I had a network failure therefore the Nagios system could not send any notification out. Now I am looking for an additional monitoring service which is outside from my...
  13. D

    Performance LSI 9205-8e ssd raid0

    Hi all.. I have 8 ssd's (Toshiba Trion OCZ 150 480gb) hooked up to an 9205-8e with 2 SFF 8088 to 4 X SATA cables. It's sitting in an HP Z800 (96gm ram) running proxmox (latest v4.xx). The lsi is placed in an 8x pcie 2.0 port I have made two raid0 arrays (four ssd's in each) with mdadm and i...
  14. Chrisbrns

    SuperMicro Performance hell - CSE-847E1C-R1K28JBOD

    I'm going crazy over here troubleshooting a performance issue that I can't seem to iron out. Wondering if I am overlooking something simple. Configurations: Hard Drive: 24x SAS Seagate 12gbps connected, 7.2k 10TB Hard Drives – Model: ST10000NM0096 (revision: E001) HBA: Dell Perc H830 –...
  15. D

    Encrypted Drives - Does anyone have benchmarks for these?

    Do any of you have experience with encrypted drives, and performance measurement of same? Specifically, 6TB level spinning disks, I think at 7200RPM levels, for use in mid-sized storage systems. I think the target is a 3 shelf FAS-8020 system. Any drawbacks aside from performance issues? --...
  16. B

    Xeon ES/QS Benchmark Database

    Help us build a performance database on Intel Xeon ES/QS CPUs ( Single, Dual, Quad processor systems all accepted ). All you have to do is run the following benchmarks, and post your scores/results along with your CPU & system info. The benchmarks ( click on their name to download! ) to be...
  17. C

    How can I improve disk performance for my ESXi build?

    I've been playing around with ESXi for almost a month now. My first hurdle was getting my GPU to successfully passthrough and while a bit bumpy, I managed to get that fully working which was exciting. Then, when working through setting up my VMs I started to notice that I had pretty mediocre...
  18. B

    performance of KVM/QEMU disks on ZFS volumes

    Apologies if this question does not below to this forum. I am running a small number of Windows 10 guests on libvirt-2.5 + qemu-2.7 + linux-4.8 with ZFS 0.6.5.8 . Disks of the guests are setup on ZFS zvols , for example disk C: of guest "lublin" ... <disk type='block' device='disk'>...
  19. J

    Workstation Storage Question

    Hey all, I'm currently working out a new build for a home workstation that I use to work with my racks and also for pleasure. My current rig is going to be sold and I want to avoid some of the issues I was having with my Samsung Pro NVMe. My Questions: What is the fastest storage device...
  20. realtomatoes

    how'd you improve zfs performance?

    i got freenas running on a 2 vcpu 8gb vm on esxi with passthrough to the intel sata ports (2x 6gbps and 4x3gbps). it currently has 4x1tb 7200rpm drives in raid10. it serves the shared datastore to my vmwre lab via iscsi. since i only got 2 extra sata ports to expand and improve the performance...