Hi,
On 06/11/2012 08:47 AM, Eric_YH_Chen@xxxxxxxxxx wrote:
Dear all:
I would like to know if the journal size influence the performance
of disk.
If the size of each of my disk is 1T, how much size should I prepare
for the journal?
You journal should be able to hold the writes for a short period of
time, something like 10 ~ 20 seconds.
If your machine is on a 1Gbit line it will do something like 100MB/sec
of writes.
100MB * 20 seconds = 2000MB
So a journal of something like 2GB should be enough.
You can always scale it bigger to 4GB, that won't hurt anything.
So it doesn't depend on the size of your data disk, but depends on how
fast the writes are coming in.
Wido
Thanks for any comment.
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