On Tue, 8 Jul 2014, loody wrote: > > An alternative is to write a positive value, such as 240000, to > > > > /sys/block/sdX/events_poll_msecs > > > > where X is replaced with the proper drive letter. (240000 ms = 240 s = > > 4 m.) I'm not sure this will work, but it's worth a try. > > I cannot find events_poll_msecs you mentioned in my system. > Is this capability related to kernel version? > ( my kernel version is 2.6.38.8 ) Well, the in-kernel disk events mechanism was added in 2.6.38, but it may not have been implemented for your type of drive. Probably you don't actually need to do a read. Simply opening the device file ought to be sufficient. Alan Stern -- To unsubscribe from this list: send the line "unsubscribe linux-scsi" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html