Disk to Disk Copy strangeness
Hi Folks,
I'm currently copying data from one 90G raid 5 storage to an EVA system. The old system has a 90g partition that's quickily filling to capacity. So I created a 500G partition on the EVA.
I connected the drives, and can see them, etc. Now, I did a default format on the new 500G partition, and began copying over my message store (LOTS of small files).
Now the copy is executing, and the destination drive has exceeded the source data size by 40G.
When I look at the mkfs -m of each disk, I get the following:
SOURCE:
mkfs -F ufs -o nsect=64,ntrack=64,bsize=8192,fragsize=1024,cgsize=26,free=1,rps=90,nbpi=8268,o pt=t,apc=0,gap=0,nrpos=8,maxcontig=64
DESTINATION:
mkfs -F ufs -o nsect=128,ntrack=128,bsize=8192,fragsize=1024,cgsize=6,free=1,rps=60,nbpi=8244, opt=t,apc=0,gap=0,nrpos=8,maxcontig=128
I'm suspecting that something with my block size is causing the increase in disk usage, but don't know for sure. I'm hoping I can get some advice on how to make best use of the new 500g drive.
The data for the drive is a message store so a lot of small 1K-250K files.
-Tom
