Re: Adding a USB device to a SATA-only array

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On 16/07/18 08:22, Kevin Lyda wrote:
Anyway, you guys do you. I just offered some feedback where data was
being silently corrupted which seems like a thing, I dunno, people
doing storage software might care about. I have to get back to disk
funeral planning and dealing with this complaint about bunions caused
by magnetic boots.
Sorry but we live in the real world too. I get you want things fixed and you want them to work, but we've been bitten too often by USB letting us down at critical moments. What's the point of setting your array to rebuild if it's unlikely to complete?

I don't know how long a streaming copy would take on one of your disks, but the MTBF of USB is probably a similar order of magnitude. As I found out personally with PATA, sharing a controller leads to PAIN PAIN PAIN. As Roger says you probably have two - or three tops - USB ports, and you probably don't have a clue what devices are on them. It only takes a device you forgot (or didn't realise) was there to stall the port/controller/hub, and your recovery will get trashed.

Will your computer(s) take an add-in PCIe board? At about £30 apiece that's two extra (e)SATA ports. Then you're out another £30 for a eSATA dock, and when your next disk croaks you have a RELIABLE way of rebuilding it, not something that's going to crap out on you without warning.

Cheers,
Wol
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