<div dir="ltr"><div>i am facing slow read and write on our new NAS. <br></div><div>here is the hardware detail.<br><br></div><div>Proxmox :<br></div><div>12GB RAM<br></div><div>Xeon 3.2 (2 processors)<br></div><div>500GB HD for Proxmox and Debian OS.<br>
<br><br></div><div>Remote SAN/NAS:<br></div><div>OS : omniOS<br></div><div>RAM : 12 GB<br></div><div>FS : ZFS<br></div><div>Sharing protocol : NFS<br></div><div>Xeon 3.2 (2 processors)<br></div><div>1 SSD 60GB ARCH2 <br></div>
<div>1 SSD 120GB ZIL<br></div><div>3 Mix capasity HD 800GB,500GB and 1TB all are 64bit Cache. <br></div><div>ZFS RAID Type : RaidZ<br><br><br></div><br><div><br></div><div>when i am inside the VM and trying to copy "to" network or "from" network i see very slow traffic. specifically talking about inside VM.<br>
<br><div>kindly find an attach file. to see my read and write performance. <br></div>in side graphs Red line is showing my copy data-to-VM and white line showing copy data-to-network.<br><br><br></div><div>when i am copying data from terminal it is showing me good speed.<br>
</div><div><br></div><div>here is the some more detail on Mount points. (output of my "df -h" command)<br><br>10.x.x.25:/tank/VMbase 903G 2.1G 901G 1% /nfscom<br></div><div><br>---------------------------------------------------------------------------<br>
</div><div>here is some copy test on terminal from the nfs mount point<br><br>root@bull:/nfscom/images/1009# rsync --progress vm-1009-disk-1.raw /<br>vm-1009-disk-1.raw<br> 824311808 7% 70.00MB/s 0:02:18<br><br></div>
<div>(you can see i am coping 10GB file from NFS mount to "/" this is the same VM image which is showing problem in the attached graphics)<br><br></div><div>now copying same VM from "/" to same NFS mount point.<br>
<br>root@bull:/nfscom/images# rsync --progress /vm-1009-disk-1.raw /nfscom/images/<br>vm-1009-disk-1.raw<br> 607682560 5% 63.71MB/s 0:02:35<br><br></div><div><br></div><div>you can see my read and writes are working-great from the console but when it come to VM i am facing issues inside VM. <br>
</div><div><br></div><div>actually i have asked this question few weeks ago. some one suggested me in the forum to buy a SSD for ZIL so it took me a while and i bought even two SSDs 1 for Level 2 Arch and 1 for ZIL. but still i am standing at the same point. <br>
<br>Can anyone please tell me what mistake i am doing here.<br><br></div><div>even i tried FreeNas with same ZFS config i am facing same issue.<br><br>however when using Same NFS with Virtualbox in ubuntu 12.x it is doing fine. <br>
<br></div><div>i tried any available HD type and all the modes available in proxmox, such as "no cache" "sync" write through" on both raw and qemu drive types but nothing help.<br></div><div><br><br>
</div><div>i dont know where i am doing wrong. <br></div><div><br>please help me out. i am very near to bang my head :).<br><br><br></div><div><br></div><div><br></div><div><br><br><br></div></div>