(In reply to comment #9) > Previously users could use UDISKS_DISABLE_POLLING to inhibit SMART data > updates > for hard drives which had a longer spindown timeout than the SMART polling > interval (which seems to be 10 minutes). Is there a new mechanism to disable > SMART data updates by device?
Not apart from either turning SMART off (using e.g. hdparm(8)) such that e.g. ID_ATA_FEATURE_SET_SMART_ENABLED will be set to 0 in the udev database.... (a udev rule to set this on the device should work too - that way you won't have to turn SMART off). But even with SMART enabled, udisks reading SMART data should not wake up the disk - in fact, we check if the disk is asleep and avoid reading SMART data if this is so.... if this in turn causes the disk to never go to sleep, I think it may be a problem with the disk sleep timer in question (changing the disk sleep timeout to < 10 min or forcing it to go to sleep could fix it). -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/379780 Title: CD-ROM polling on some Optiarc drives causes high CPU usage To manage notifications about this bug go to: https://bugs.launchpad.net/linux/+bug/379780/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
