Hi again:
I have been unable to discover the most appropriate thread on which to post the problem described as follows:
I have been operating my MacBook Pro 15" (Mac OS 10.7.5), with Windows 7 - Parallels Desktop, for about one and one-half years. However, whenever I execute a Time Machine backup, and leave the system unattended (i.e. with screen top open) to complete the process, I return only to find that my system has re-booted, long before the back-up is completed.
For my only successful back-up (about 300 GB), I had to use sleep mode (screen top closed) continuously for unattended periods, until the backup completed over several days of extensive active operating periods.
I do not use the auto-backup feature because I do not see how to change the shedule for backups away from the default schedule of hourly backups (too much stain on performance).
Is there something that I am missing in setting up for such a back-up?
Is the fact of Windows 7 - Parallels Desktop contributing the problem?
I am currently operating at home, using direct LAN connectivity. I frequently operate away from home, using wi-fi for Internet access.
In partial responses to my problem, I learned that there is a separate application to use to schedule back-ups. I am currently using it for scheduling daily backups. However, despite having downloaded and used another application "caffeine" to supposedly stop the Mac OS from going into sleep or hibernation mode after a prescribed time automatically (despite having set the timeframe to "never"), I still cannot complete that onerous initial backup of 300 GB, since the machine still goes into reboot mode after a modest timeframe of unattended operations (i.e. the screen cover left up). This happens after my initial success at finally achieving a successful backup, because I had to use a system restore/recovery process to cure another problem.
I would be most grateful for any advice on how to get "caffeine" to operate correctly, such that I can be assured of being able to use the Time Machine backup process even after a system restore operation (should I be so unfortunate to suffer another crash requiring such a drastic step).
I also tried another "freebie" application "Jiggler", as recommended by an Experts-Exchange guru, but even it did not seem to resolve the issue. However, now that my daily backups of Time Machine are relatively short, the problem is no longer that, but rather with my Malwarebytes Pro full system scans in my Windows 7 virtual machine.
Appreciatively, Arbyem
MacBook Pro (15-inch, Mid 2012), Mac OS X (10.7.5), 8GB RAM, 500 GB HD, 1 TB WD My Passport USB 3 backup device, Both cable modem & router included
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