1 Reply Latest reply on Mar 26, 2019 5:32 AM by daphnissov

    share a given datastore between many Linux VMs using mount points - which FS to use?

    alexhguerra Lurker

      Hi

       

      VMWare 6.7 solution here, Using Dell scv2020

       

      Im looking towards making a vmdk, or a datastore avaliable to more than one VM (actually ,20) ,

      in order to create a central repository to files between these VMs

       

      Looking throughtly, i did found that its possible to share the same vmdk, as per below

      but i will need probably to enable multi writer capability

       

      I do ask if Ubuntu 18.04 GFS2 works out of the box  in this case, or, do i need to look further

      for Red Hat or SuSE

      I did also found out that OCFS2 could be a good call here.

       

      Is there any other recommended FS in thise case?

       

      VMware Knowledge Base

      https://communities.vmware.com/blogs/Abhilash_hb/2013/08/25/clustering-using-sharing-of-vmdks-between-virtual-machines

       

      Enabling or disabling simultaneous write protection provided by VMFS using the multi-writer flag (1034165)

      https://kb.vmware.com/s/article/1034165

       

      Are VMware VMDK disk images a supported shared storage method in Red Hat Enterprise Linux High Availability Cluster?

      https://access.redhat.com/solutions/158873

       

      https://www.virtuallyghetto.com/2015/10/new-method-of-enabling-multiwriter-vmdk-flag-in-vsphere-6-0-update-1.html

       

      GFS2 recommendation

      https://access.redhat.com/articles/3131271

      Support Policies for RHEL High Availability Clusters - VMware Virtual Machines as Cluster Members

       

      https://clusterlabs.org/pacemaker/doc/en-US/Pacemaker/1.1/html-single/Clusters_from_Scratch/index.html#GFS2_prep

       

      Great SuSe reference

      https://www.susecon.com/doc/2014/sessions/TUT8155.pdf

      Optional – The OCFS2 file system includes a

      distributed lock manager and will safely allow multiple

      cluster nodes to concurrently block mount shared

      storage (Max 32 nodes are supported by SUSE, Max

      8 nodes RW limitation per VMware)