Thanks for the help so far guys! Has anybody used (made it work) the default ceph-iscsi implementation with VMware and/or Windows CSV storage system with a single target/portal in iSCSI? On Wed, Jun 21, 2023 at 6:02 AM Maged Mokhtar <mmokhtar@xxxxxxxxxxx> wrote: > > On 20/06/2023 01:16, Work Ceph wrote: > > I see, thanks for the feedback guys! > > > > It is interesting that Ceph Manager does not allow us to export iSCSI > > blocks without selecting 2 or more iSCSI portals. Therefore, we will > > always use at least two, and as a consequence that feature is not > > going to be supported. Can I export an RBD image via iSCSI gateway > > using only one portal via GwCli? > > > > @Maged Mokhtar, I am not sure I follow. Do you guys have an iSCSI > > implementation that we can use to somehow replace the default iSCSI > > server in the default Ceph iSCSI Gateway? I didn't quite understand > > what the petasan project is, and if it is an OpenSource solution that > > we can somehow just pick/select/use one of its modules (e.g. just the > > iSCSI implementation) that you guys have. > > > > For sure PetaSAN is open source..you should see this from the home page :) > we use Consul > https://www.consul.io/use-cases/multi-platform-service-mesh > to scale-out the service/protocol layers above Ceph in a scale-out > active/active fashion. > Most of our target use cases are non linux, such as VMWare and Windows, > we provide easy to use deployment and management. > > For iSCSI, we use kernel/LIO rbd backstore originally developed by SUSE > Enterprise storge. We have done some changes to send persistence > reservations using the Ceph watch/notify, we also added changes to > coordinate pre-snapshot quiescing/flushing across different gateways. We > ported rbd backstore to 5.14 kernel. > > You should be able to use the iSCSI gateway by itself on existing non > PetaSAN clusters but it is not a setup we support. You would use the LIO > targercli to script the setup. There are some things to take care of > such as setting the disk serial wwn to be the same across the different > gateways serving the same image, setting up the multiple tpgs (target > portal groups) for an image but only enabling the tpgs for local node. > This setup will be using multi path MPIO to provide HA. Again it is not > a setup we support, you could try it yourself in a test environment, you > can also setup a test PetaSAN setup and examine the LIO configuration > using targetcli. You can send me email if you need any clarifications. > > Cheers /Maged > > > _______________________________________________ ceph-users mailing list -- ceph-users@xxxxxxx To unsubscribe send an email to ceph-users-leave@xxxxxxx
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