Scsi persistent reservation in iscsi stack overflow. Understanding linux scsi reservation the geek diary. Prs are a scsi protocol feature, so they have been implemented in the linuxio engine, and hence can be used for all scsi transport fabrics, such as fcoe, fibre channel, iscsi, iser, srp, serial attached scsi sas. Has anyone used starwind for scsi3 persistent reservation disks. Scsi3 persistent reserve technology allows for fast eviction and fencing of failed nodes in the cluster.
Question regarding scsi3 persistent reservation dell. Veritas advance cluster uses the scsi3 persistent reservation to perform io fencing. By joining our community you will have the ability to post topics, receive our newsletter, use the advanced search, subscribe to threads and access many other special features. Scsi persistent reservations red hat enterprise linux 6. Solved enable persistent reservations for iscsi volumes. If the crash is on the initiator side, then youre right, unless the session is persistently recorded on linux, its not, the session gets a new session id. Is there a document that clearly explains the difference between scsi 2 reserverelease and scsi 3 persistent reservation.
Enabling scsi3 persistent reserve for db2 purescale. In spc3, reserve and release are deprecated, replaced by persistent reservations. Enabling scsi3 persistent reserve for db2 purescale feature db2 10. Yes dell unity supports scsi3 persistent reservations. Scsi 3 reservations are mostly used in clustered environment where two or more.
As vmware vsan does not support scsi3 persistent reservation for. What are scsi reservations and scsi persistent reservations. It doesnt yet, but i think its something wed like to do. Using red hat clustering suite or suse linux on a vsphere 6. Of course, not all scsi storage supports persistent reservation. Scsi3 persistent reservations also support multiple paths from host to. Enabling scsi3 persistent reserve for db2 purescale feature. Persistent reservations and registrations are queried by subcommands called. Enabling scsi3 persistent reserve for db2 purescale shared file systems db2 11.
Has anyone used starwind for scsi3 persistent reservation. My understanding of the scsi reservation in a cluster environment is that one node only can reserve a lun for write access. It does support scsi3 persistant reservations, im using it right now on opensuse 11. The one you need to start looking for is linuxiscsi. In the case of linux clusters, cfs like polyserve and sistina gfs are able. The output indicated the server was reserved by key abc123, with type 3 exclusive access. Supported for red hat clusteringsuse linux enterprise ha and limited to 8. This post elaborates the basic usage of scsi reservation in centosrhel systems. Hi all, i am trying to implement io fencing on my vmware test setup using centos 5.
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