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ShadowProtect Storagecraft backup app - restore is taking a long time

On my home office PC, I have a single large drive with all my data, the OS is on another physical drive.  Today I had my 3rd failure of the data drive over the last 5 - 6 years. I am getting better though. The first 2 I paid recovery services to get the data off the drive because I didn't have backups.  This time I've been running SP once a day overnight.  But of course, the last backup was sunday AM.  I did a lot of work Sunday day and for some reason I didn't have it do backups on monday AM.  So I did lose some data but nothing like previous times.

Anyway, I put in a new hard drive and went to restore from a USB connected external hard drive storing the continuous incrementals.  We're up to 220 on the incremental images.  I told it to do a restore of the 800GB of data and it says it's going to take 22+ hours? at 16 MB/sec.  Is that slow? Is it because of all the incrementals? (I do run image manager and it does the default consolidated daily, weekly, monthly, etc.). Or because it's USB? Somehow I thought a restore would go quicker?  Would mounting the last incremental then copy to the internal hard drive be any quicker?

And any thoughts on my failure rate? the 1st 2 drives were in a dell dimension 5100 and the data drive was the lower drive. I had a client that had the lower drive on the same model fail a couple times also (they had it set as a raid).  and this drive is on an optiplex 390, also the physically lower of 2 drives.  I have loads of clients that have never had a single hard drive failure.  the first 2 were seagate and this one was wd.

thanks!
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Jian An Lim
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USB connected external hard drive is a no no

so what do you back up to? An internal hard drive?
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Yup, anything have a better disk queue will do ..
but normal USB sometimes just doesn't cut it .. (although, alot of business still do so)

From just one PC, maybe that's fine (sorry, just suddenly jump on to more enterprise level)

something like Merete recommends sound good.

Also, I remember Storagecraft has some storagecraft appliance offer last year... maybe worth checking with them.
I was wondering if the slow restore is because SP has to deal with all the files in the chain (it was a continuous backup). it had weekly and monthly consolidations, but was up to incremental 220.  or the USB throughput.  

disheartening to take that long to restore data.  Yes, it's a fair amount, but I thought things would be quicker (no indictment of SP, its just the sheer amount of data to restore?).
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