Description of problem: does RHCS in rhel9.0 support fence agent based on NVME reservation. I don't see any info about it? storage reservation is an important method to fence node from storage view. wish there could have nvme based PR fence agent in RHCS Version-Release number of selected component (if applicable): How reproducible: Steps to Reproduce: 1. 2. 3. Actual results: Expected results: Additional info:
After evaluating this issue, there are no plans to address it further or fix it in an upcoming release. Therefore, it is being closed. If plans change such that this issue will be fixed in an upcoming release, then the bug can be reopened.
Karl, this is a public requirement. not dell specific. thinking about RHCS support scsi_fence mechanism which depending on storage vender supporting scsi reservation standards. now nvme-F is more and more popular and dell storage already support nvme reservation standard too. so we ask if rhel has a plan support to support nvme_fence agent.
The nvme replacement for sg3_utils with is the nvme-cli utility. This utility is fully supported by RHEL. [root@rhel-storage-105 ~]# rpm -qi nvme-cli Name : nvme-cli Version : 2.4 Release : 1.el9 Architecture: x86_64 Install Date: Tue 18 Apr 2023 05:40:34 PM EDT Group : Unspecified Size : 4982802 License : GPLv2+ Signature : RSA/SHA256, Wed 12 Apr 2023 03:55:03 AM EDT, Key ID 199e2f91fd431d51 Source RPM : nvme-cli-2.4-1.el9.src.rpm Build Date : Thu 06 Apr 2023 06:25:43 AM EDT Build Host : x86-64-06.build.eng.rdu2.redhat.com Packager : Red Hat, Inc. <http://bugzilla.redhat.com/bugzilla> Vendor : Red Hat, Inc. URL : https://github.com/linux-nvme/nvme-cli Summary : NVMe management command line interface Description : nvme-cli provides NVM-Express user space tooling for Linux. So, instead of using the `sg_persist` command you would use the `nvme` command to manage reservations on the nvme device. resv-acquire Submit a Reservation Acquire, return results resv-register Submit a Reservation Register, return results resv-release Submit a Reservation Release, return results resv-report Submit a Reservation Report, return results This means: sg_persist --out --register --param-rk=123456 /dev/sdb becomes: nvme resv-register /dev/nvme1n1 --rrega=0 --nrkey=123456 --iekey Example: [root@rhel-storage-105 ~]# nvme resv-register /dev/nvme1n1 --rrega=0 --nrkey=123456 --iekey NVME Reservation success [root@rhel-storage-105 ~]# nvme resv-report /dev/nvme1n1 NVME Reservation status: gen : 1 rtype : 0 regctl : 1 ptpls : 1 regctl[0] : cntlid : 1 rcsts : 0 hostid : 0 rkey : 1e240
yes, the nvme-cli utility is supported by RHEL. RHCS supply scsi_fence agent for cluster fencing. it only serve for scsi3 reservation. there don't have a agent used for nvme reservation. there need a similar agent for nvme reservation