Backup and restore using NAS
I am using a NAS server to do backup of my computer. Full backup takes about 8 hours (about 2 TB data), which is a long time, but I can live with it.
I had to do a restore of my data disk after changing RAID controller, and I then used the Win PE based Rescue Media, since the standard Rescue Media does not support RAID. I did the following procedure:
1. Boot form Rescue Media
2. Map the NAS server: net use K: \user=<user name> \\<address>\directory *
3. Found the correct backup on the NAS server
4. Choose restore disk
5. Choose disk target
Restore started, and the whole restore process took nearly 40 hours!
Is this what I must expect (the data disk was 2.7 TB) or is there something I am missing?
Best regards
Ulf


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Thank you so much for your reply.
I have tried to copy files from the NAS to the disk involved when system is online. The result (using Microsoft System Monitor) shows me a throughput of 30 MB/s for large files and about 10 MB/s for small files, so this is totally different from what I see from the restore. The que length is never much more than 3.
I am not sure what kind of network drivers that are used when I boot the Win PE based Rescue Media, so this might be an issue. The other thing that could be a problem, though I cannot imagine such a big impact, is that I had the RAID-5 set configured with Write Through instead of Write Back (I do have a battery pack on the controller!).
Anhang | Größe |
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