Hi I am doing iscsi, but both hypervisor mouting different iscsi target , and I am not planning to do HA also. Just mounting a drive to hypervisor to use.
I sharing the same mount point, but this seems not works. It only first. hypervisor when. But when adding second hypervisor into the cluster and pre-create the mount point, it does not work. I am trying to avoid ceph, as there is a lot of machine need to get up , in production environment, at least is 3mon and 3osd , and 1 controller. Thus trying on iscsi , Linbit is not supported yet, and I do not wish to use SMB or NFS which CPU usage of storage server could be issue, if trying to fit a lot VM in hypervisor (for example, 200vm etc) Seems not much choice here any more . or others have better solutions ? On Sun, Sep 13, 2020 at 11:46 AM Hisham Ismail <hisham.ism...@protonmail.ch.invalid> wrote: > Hi Hean, > > Are you using clustered filesystems such as like GFS2, OCFS or clvm for > the two hypervisor hosts to share the same mountpoint as mentioned by > Andrija? > Im exploring Sheepdoq and Lizardfs to avoid using clustered filesystems > setup. > > Sent with ProtonMail Secure Email. > > ‐‐‐‐‐‐‐ Original Message ‐‐‐‐‐‐‐ > On Friday, 11 September 2020 21:54, Hean Seng <heans...@gmail.com> wrote: > > > Hi > > > > I understand the convenience of NFS, however in NFS, filesystem is at > > Storage end, and the CPU , RAM performance of Storage become very very > > important . The Overload may happen on storage rather > > compute/hybervisor. > > > > Where as iscsi based sharedmountpoint might have more efficiency for > this. > > > > I am facing issue is , i create first host with sharemoutpint /vmdisk , > > there is no issue of this, After that i add another host the the Cluster, > > and and I mount the same name of ShareMountPoint (/vmdiak) in the newly > > added host , since /vmdisk already appear in Primary Storage , and is in > > "Cluster" , so I did not create it again . > > I assume this shall work but apparently the /vmdisk in newly added in > > hypervisor host is not recognizable. . > > > > Thank you > > > > On Fri, Sep 11, 2020 at 8:45 PM Andrija Panic andrija.pa...@gmail.com > > wrote: > > > > > Hi Hean, > > > this is a SharedMountPoint option when adding Primary Storage in > > > CloudStack. > > > This does require that your 2 hosts (not sure you'll be able to do it > only > > > with 2 hosts) have some kind of Clustered Filesystem like clvm, GFS2, > OCFS > > > set up on that mount point /LUN - none of those I would recommend > really > > > due to long-term stability etc - if you, can avoid it, if you can't > avoid > > > it, then... use it. > > > The /vmdisk folder will be the sharedMountPoint and since more than one > > > compute hosts are writing to a shared LUN this is why you need a > clustered > > > filesystem on top of that LUN. > > > I would, instead, advise you to explore simple NFS setup or similar. > > > best, > > > On Fri, 11 Sep 2020 at 07:12, Hean Seng heans...@gmail.com wrote: > > > > > > > Hi > > > > Is anybody know One Cluster have two KVM host, and each host has same > > > > ShareMountPoint Name, > > > > And I to create one Primary Storage with same SharedMountPoint Name, > for > > > > example, /vmdisk on both host . (both in same cluster) > > > > And when create VM, it will automatically create the vm-storage-disk > > > > inside the Host's Sharemount point . > > > > -- > > > > Regards, > > > > Hean Seng > > > > > > -- > > > Andrija Panić > > > > -- > > > > Regards, > > Hean Seng > > > -- Regards, Hean Seng
