John Lockard wrote:
> For spool, I would worry about the limited write (erase) cycles of 
> SSD. Sure, the speed of read/write is enormously appealing, but with 
> how much my spool gets hit I'd hate to have to set a really early 
> replacement schedule because my media can't handle many writes.  
> Rather than SSD for spool, RAM-Disk looks like a better way to go.
I'm wondering about that. I haven't actually done any research into it, 
but I would have assumed that a spool actually would be pretty easy on 
the write cycles, because you just create the file, never modify it, and 
eventually delete it. If your spool is small, you might be doing that a 
few times for a full backup, but even then it seems to me that there 
should only be a couple writes to each cell per day. Let's say that you 
spool and despool 10 times for a full backup.

I think even the cheapest flash memory has an MTBF of 10,000 write 
cycles, which means that an SSD used for spooling should last for 1000 
full backups - even more differential or incremental ones.

Or is my reasoning wrong here? Without practical experience, that's 
entirely possible.

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