|
HP OpenVMS Systemsask the wizard |
|
The Question is: Backup/Physical, Wizard 92. (3566) Well, i did double check: The disk are the same and backup/phy disk1 to tape and then backup/phy tape to disk2 does work successfully. Only backup/phy disk1 to disk2 does not do the job and my guess was 4.3Gb. The Disks are the same size, geometrie and re visionlevel and to be honest, I use it to backup a system, which DEC and COMPAQ did favor for a while, I do make a complete copy of a WNT4.0 SP5 system by taking the SCSI Disks of the (ugly) PC, hook them up to one Alphaserver and then doing the backup. I t is not very fast doing the job via DLT7000, but better then anything else. The disks are: IBM DCAS-34330 Rev S65A, blcokss 8467200,cyl=8253,sec=171,trk=6. This is not mayor VMS business, but it might give you a clue, that there is something fishy with backup/phy beyond 4Gb. I do assume, never tested for more then a decade. Speed of the backup in this mode might be something to be checked, while in the code (still the old it has to run in 2MB of memory design?) I would like to thank you guys (i do expect more than one person doing the job) for the time and effort taken to help the users, which do have sometimes trouble to reach out for the next salesrep. The Answer is : Please try this processing with Compaq-supported disks (and, of course, any available SCSI or BACKUP ECO kit), as this could potentially point to a problem with the disks or with the disk firmware -- OpenVMS has been known to push more disk I/O through than is apparently typical of other operating systems, and has accordingly uncovered various problems with certain models of disks. The OpenVMS Wizard has used BACKUP/PHYSICAL operations on various multi-gigabyte disks -- quite successfully. Specific BACKUP command(s) used and errors received would be useful.
|