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Thanks. my NEXENTA has 6 NICS, each of my 3 Clusterservers has 4 NICS. I use ISCSI AND CIFS on nexenta. How would i configure my clusternodes to have best bandwidth?? Is it possible to configure nexenta to use 4 NICS for ISCSI and 2 NICS for CIFS using Multipathing with 4Gbit/2Gbit ?? And is...

Hi i have a cluster with 3 servers in a test environment for testing i connected two servers with 3 cat6 cables together directly. A first test with bonding mode "balance-rr" gave me a IPERF result of about 2,56 Gbit, which is what i expected. NOW i changed the mode to 802.3ad and rebooted...

hi! Well i don't know about the multipathing things (but i am learning actually) But what from what i know i can say: A BBU is definitive a great performance point I realised it nearly the same way.. I had several servers, some with and some without BBU. The controllers without BBU had two...

Hi all can someone please explain what is the benefit from usin multipathing? And even more important: do i need to configure multipathing only on the master (and the nodes are replicated automatically) or do i need to configure every node seperately?? And how? thank you

hi i have a test environment. 2 physical identical servers i configured one nic to access the lan and two nics together as a bonding device. the two nics from each server are connected to a dedicated linksys srw2048 switch wich supports 802.3ad (LACP) i configured the bonding device to use...

Hi has someone an idea how to configure a clusternode so that 2 nics are used for iscsi multipathing with a nexenta storage system? i have no idea what i need to configure in the /etc/multipath conf i already read the proxmox multipath article and tried to adapt the given multipath.conf with...

If someone is interested, i managed it as follows: Storagelayout is: LVM(ISCSI1) - named LVM1-STORAGE LVM(ISCSI2) - named LVM2-STORAGE DIRECTORY - named BACKUP first, create a local directory storage "Backup" then, used vzdump --storage BACKUP --snapshot <VMID> After that, do a qmrestore...

Hi again Well a question to the guys who know about the internals: I need to install a new cluster with 6 nodes. on each node, 4 kvm machines should be installed. As Storage i have a brand new NEXENTA system. I want to use ISCSI (with LVM on top) for storage to have live migration. What...

Hi maybe simple, but i do not know how to do this: I have 2 iscsi targets configured in proxmox, both with lvm on top. "ISCSI 1" is used for a KVM Machine 103 Now i want to copy this VM to the second "ISCSI 2" Storage. Can someone please explain the steps? Thank you

ok... :( Now it looks like that: CPU BOGOMIPS: 76609.04 REGEX/SECOND: 796208 HD SIZE: 19.69 GB (/dev/mapper/pve1-testvol) BUFFERED READS: 13.04 MB/sec AVERAGE SEEK TIME: 13.04 ms FSYNCS/SECOND: 275.07 DNS EXT: 58.31 ms DNS INT: 0.72 ms and the...

Hi Udo, Well i did as you said a time cp testfile /mnt;sync and this time it gave me an astonishing 7,35 sec which seems to be 142 MB/sec ! And: I already have an dedicated nic for ISCSI (via vlan tagging) and the Netapp also has one dedicated nic in this vlan i really do not know what...

Thank you Now i understand the procedure. Maybe you can now solve my problem: I have many KVM machines (W2k3) , all on ISCSI Store. I tested the virtual hdds with HD-TUNE from within windows and it gave me an average performance of 17MB/sec. Thats why i wanted to test the direct connection...

Thank you, udo for the reply. that is my problem, i can not find the Devicenode of the mounted ISCSI. All KVM machines are working, but i don't know how to find the mountpoint. a mount shows /dev/mapper/pve-root on / type ext3 (rw,errors=remount-ro) tmpfs on /lib/init/rw type tmpfs...

Hi. Can someone please tell me how to make a performance test to a iscsi LUN? I have a 4-node cluster running, connected to a ISCSI on a netapp. Above the ISCI there's a LVM. All KVM machines reside on that Storage. But i only get a throughput of about 17MB/sec from within a virtual machine...

Hi does it make sense to use viostor drivers for windows kvm machines when the storage is a iscsi LUN (lvm) ? And can i find out the performance for HDD access? I know several possibilities to do this, but maybe there's a special KVM-solution for this??

Hi I use a cluster with 4 nodes and all kvm Machines are on a netapp iscsi Storage. Is it possible to migrate the iscsi kvm machines to local store on a node? I think i have too much machines on the iscsi store, and maybe thats the reason for a partially bad performance. Now i want to...

each server of the cluster has one NIC connected via VLAN to the Netapp and one NIOC connected to LAN All Network connections are 1Gbit

Can someone please give me a suggestion for the best setup? Cluster with 4 physical servers should run about 20 KVM machines and a few openvz ones we have also a netapp iscsi Store actal in use, but performance seems bad

Hi i have a 4 server cluster runnning proxmox 1.6 with ISCSI/LVM on a NETAPP the system grows up and actually i have over 12 KVM systems running. The problem is now that some machines have bad performance. I dont know if it is ram related or if ISCSI is the problem. All virtual disks are on...

Hi i use a cluster with 4 physical servers ans Storage is a ISCSI LUN on a Netapp The vms are windows (KVM) and the virtual harddisks are on the iscsi lun (lvm on top) Can i copy a harddisk from that iscsi store to use it on another linux with kvm? How do i copy such harddisk images? thank you