o:paul.emmer...@croit.io]
> *Sent:* 29 June 2018 17:57
> *To:* Nick Fisk
> *Cc:* ceph-users
> *Subject:* Re: [ceph-users] CephFS+NFS For VMWare
>
>
>
> VMWare can be quite picky about NFS servers.
>
> Some things that you should test before deploying anything with tha
Hi Nick,
With iSCSI we reach over 150 MB/s vmotion for single vm, 1 GB/s for 7-8
vm migrations. Since these are 64KB block sizes, latency/iops is a large
factor, you need either controllers with write back cache or all flash .
hdds without write cache will suffer even with external wal/db on ssds
.
>
>
>
> I was planning on Kernel CephFS and NFS server, both seem to achieve
> better performance, although stability is of greater concern.
>
>
>
> Thanks,
>
> Nick
>
> *From:* Paul Emmerich [mailto:paul.emmer...@croit.io]
> *Sent:* 29 June 2018 17:57
Quoting Ilya Dryomov :
On Fri, Jun 29, 2018 at 8:08 PM Nick Fisk wrote:
This is for us peeps using Ceph with VMWare.
My current favoured solution for consuming Ceph in VMWare is via
RBD’s formatted with XFS and exported via NFS to ESXi. This seems
to perform better than iSCSI+VMFS whi
On Fri, Jun 29, 2018 at 8:08 PM Nick Fisk wrote:
>
> This is for us peeps using Ceph with VMWare.
>
>
>
> My current favoured solution for consuming Ceph in VMWare is via RBD’s
> formatted with XFS and exported via NFS to ESXi. This seems to perform better
> than iSCSI+VMFS which seems to not pl
greater concern.
Thanks,
Nick
From: Paul Emmerich [mailto:paul.emmer...@croit.io]
Sent: 29 June 2018 17:57
To: Nick Fisk
Cc: ceph-users
Subject: Re: [ceph-users] CephFS+NFS For VMWare
VMWare can be quite picky about NFS servers.
Some things that you should test before deploying
VMWare can be quite picky about NFS servers.
Some things that you should test before deploying anything with that in
production:
* failover
* reconnects after NFS reboots or outages
* NFS3 vs NFS4
* Kernel NFS (which kernel version? cephfs-fuse or cephfs-kernel?) vs NFS
Ganesha (VFS FSAL vs. Ceph
This is for us peeps using Ceph with VMWare.
My current favoured solution for consuming Ceph in VMWare is via RBD's
formatted with XFS and exported via NFS to ESXi. This seems
to perform better than iSCSI+VMFS which seems to not play nicely with Ceph's PG
contention issues particularly if wor
