Re: [RFC] implementing tape statistics single file vs multi-file in sysfs

On Sat, Feb 07, 2015 at 09:27:05PM -0500, Laurence Oberman wrote:

Hello
Its not going to be tens of thousands of devices. That count was an
aggregate based on 1000's of servers.
In reality its unlikely to ever be more than 100 tapes drives per
individual Linux kernel instance.
Therefore sysfs will be the valid way to do this and make the data
available to user space.

Even if it is only 2 tape drives, again, what's wrong with using the
existing i/o statistic interfaces that all block devices have?  Don't go
making special one-off interfaces for one type of device if at all
possible.

thanks,

greg k-h