(Shyh-Wei Luan) wrote:
>
> I scanned some AFS cells last night and found that many AFS volumes have
> very low vnode access count in the past day. For example, many cells have
> > 50% volumes that were accessed fewer than 5 times. This could mean client
> caching worked well, I presume. However, I was puzzled by a significant number
> of volumes that had 1 access in the past day. This "fewer-than-1-access"
> volumes accounted for from less than %1 to more than %60 from cell to cell.
>
> Does anyone know what these kind of accesses might be for? In particular,
> what would cause this one-access-per-volume-per-day pattern?
>
> Shyh-Wei Luan
Most likely, the cell administrators have a cron job configured under
bos to clone the *.backup volumes
on a daily basis. Look at the "vos backup" command for more info.
Do a "bos status .... -noa" against some of the file servers. You
should be able to see this
cron'ed procedure.
This would account for the 1 access per day pattern, that you are
observing.
--
Chris Cowan PSW Technologies
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