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The Question is: 1 How can I share information on DSSI disks between a VAX cluster running 6.2 and an Alphp running 7.1? I have been mounting DSSI drives on the VX cluster and mouting them /nowrite on the Alpha. When the Alpha becomes our production machine, I will reverse the writability. The Alpha remounts the DSSI disks every 2 hours in a batch process. Is this remounting necessary? I have noticed that after changing a file on the VAX, sometimes the Alpha does not need to remount the drive in order to see the new version of the file. When do I need to remount the disk to see changes? Is there some guidance on sharing disks across this mixed platform, non clustered configuration? 2. I have an 8mm tape device that I move from the VAX to the Alpha as needed, then back. I have the TMSCP_LOAD = 1, and TMSCP_SERVE_ALL = 2 on both VAX and Alpha. Neither system can see the 8mm device mka0 on the other system. BUT, once I noticed that the VAX could see the Alpha 8mm. I even did not believe it. I copied a file from the VAX to the Alpha 8mm device without problem. Thereafter, I have never seen both devices being available. Help me understand this behavior. Is there an assured way of serving the tape device between the Alpha and the VAX cluster? Oh, I did not purchase the cluster software for the Alpha. I did not think the $10,000 price was worth it for our transitional period, which has dragged on. The Answer is : All nodes sharing a SCSI, DSSI, or CI bus must be members of the same OpenVMS Cluster, and the VOTES and EXPECTED_VOTES must be configured per the OpenVMS Frequently Asked Questions (FAQ). The particular DSSI configuration you are presently operating in is not considered a supported configuration, and is definitely not a recommended configuration. The potential for system crashes and for data corruptions due to uncoordinated access can exist in this particular configuration.
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