Time machine on a usb hub

Last summer, my iMac (running El Capitan) 2010 started hooking serious problems where the only solution would be to perform a reboot of the material.  After much experimentation and running on an external drive, I discovered that Time Machine was the culprit.  That is, when TM was off, the Mac has worked well, but if I turned back on, after 12-24 hours of TM, the Mac, would essentially become unusable and require a restart of hardware.  While I would certainly prefer to have current backups made via TM, there is nothing on this machine that had not been saved on other storage devices, so I was happy to let it go for several months.  Thinking maybe TM two disks, I had been using had been corrupted, I have them off and on again 5 TB (internal drive is 1 TB).  Once again, the same results.  Thinking maybe the USB hub was at fault, I replaced the hub last night.  This morning, everything seemed fine, but four hours later, after being in mode 'sleep' for most of the time, it was frozen again.  I have attached from the player to the USB port on the iMac Freedmen and will wait to see what happens.

Now I read that Apple has recommendations for the use of TM and nowhere in there is a mention, a USB hub, for or against.  Anyone has any information (even if it's just anecdotal) regarding the use of the Time Machine disks via a USB hub?  For the record, the drive is a Seagate 5 to, USB 3.0, and I connected via USB 2 and 3 USB hubs with the same results (suspended).

Anyone who can shed light on this aura of gratitude.  It has been confusing me for some time - especially since it seems that nothing of what I found to indicate that you can not or do not use a Time Machine drive via a USB hub.

These hubs are externally powered? And what else is connected to them?

Tags: Mac OS & System Software

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