Re: Experiences with KVM, iSCSI and OCFS2 (SharedMountPoint)

2021-01-22 Thread nux
Sounds great, keep us posted. A good solution for using iSCSI/SAN/etc would be great, as it is one of the bigger let-downs of Cloudstack (or should I say, ACS+KVM/libvirt combo). PS: NVMeOF sounds like a game changer, wasn't even aware of it, thanks for mentioning. I would need to test

Re: Experiences with KVM, iSCSI and OCFS2 (SharedMountPoint)

2021-01-22 Thread Wido den Hollander
On 21/01/2021 21:31, n...@li.nux.ro wrote: Well, there you go.. On 2021-01-21 18:50, Simon Weller wrote: We used to use CLVM a while ago before we shifted to Ceph. Cluster suite/corosync was a bit of a nightmare, and fencing events caused all sorts of locking (DLM) problems. I helped a

Re: Experiences with KVM, iSCSI and OCFS2 (SharedMountPoint)

2021-01-21 Thread nux
Well, there you go.. On 2021-01-21 18:50, Simon Weller wrote: We used to use CLVM a while ago before we shifted to Ceph. Cluster suite/corosync was a bit of a nightmare, and fencing events caused all sorts of locking (DLM) problems. I helped a CloudStack user out a couple of month ago, after

Re: Experiences with KVM, iSCSI and OCFS2 (SharedMountPoint)

2021-01-21 Thread Simon Weller
: us...@cloudstack.apache.org Subject: Re: Experiences with KVM, iSCSI and OCFS2 (SharedMountPoint) On 21/01/2021 11:34, n...@li.nux.ro wrote: > Hi, > > I used SharedMountPoint a very long time ago with GlusterFS before > Cloudstack had native integration. > Don't remem

Re: Experiences with KVM, iSCSI and OCFS2 (SharedMountPoint)

2021-01-21 Thread Wido den Hollander
On 21/01/2021 11:34, n...@li.nux.ro wrote: Hi, I used SharedMountPoint a very long time ago with GlusterFS before Cloudstack had native integration. Don't remember the details, but overall my impression was that it worked surprisingly well, of course back then there weren't as many

Re: Experiences with KVM, iSCSI and OCFS2 (SharedMountPoint)

2021-01-21 Thread nux
Hi, I used SharedMountPoint a very long time ago with GlusterFS before Cloudstack had native integration. Don't remember the details, but overall my impression was that it worked surprisingly well, of course back then there weren't as many feature, so less stuff to test. I would give it a go.

Experiences with KVM, iSCSI and OCFS2 (SharedMountPoint)

2021-01-21 Thread Wido den Hollander
Hi, For a specific use-case I'm looking into the possibility to use iSCSI in combination with KVM. Use-case: Low-latenc I/O with 4k blocks and QD=1 KVM with CloudStack doesn't support iSCSI natively and the docs and other blogs refer to using 'SharedMountPoint' with OCFS2 or GFS2: -