Re: [BackupPC-users] rsyncd full backup
2013-10-31 14:20:06
Sharuzzaman Ahmat Raslan <sharuzzaman AT gmail DOT com>
wrote on 10/30/2013 10:06:18 PM:
> Hi Holger,
> Based on short session of troubleshooting, I
believe the machine
> actually suffer from low I/O speed to the disk. Average read is
> about 3 MB/s, which I considered slow for a SATA disk in IDE emulation.
*REAL* slow: I consider anything under 20MB/s
slow.
But where did that number come from? The pattern of reads will make
a *huge* difference...
> I'm planning to suggest to the customer to have a RAID 1 setup to
> increase the I/O speed. I'm looking at possibilities to speed things
> up by not having to change the overall setup.
I think you might want to have a better idea of what
is going on first before you just start throwing hardware at it. If
your numbers were correct but still too slow I'd say sure. But your
numbers are *broken* wrong. You *might* fix your problem (by accident!)
by throwing away some pieces and adding others, but you might not, too.
Then you've got a client that just spent a bunch of money for nothing...
Tim Massey
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