-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 On 11/13/2014 10:05 PM, Patrick Gautschi wrote: >> That means something else is waking up those disks. To verify >> this use something like: > > FS are not mounted and arrays stopped. There is nothing that wakes > them up. If a switch them off manually with hdparm -Y they stay > off. Are you running udisks? If so then that is the culprit. It polls the drive's SMART stats every 10 minutes unless the drive is already asleep, so if the timeout is >= 10 minutes ( which it seems WD drives refuse to go any lower anyhow ), then the drive will never go to standby. I posted some patches to fix this a while back on the devkit-devel mailing list but I think the udisks maintainer has still not gotten around to applying them. -----BEGIN PGP SIGNATURE----- Version: GnuPG v2.0.17 (MingW32) iQEcBAEBAgAGBQJUgLcmAAoJENRVrw2cjl5RNkgIAKY2UyBO/I5Tkm9gA6ALn9wx mcQWsS5gacWitu8ALa/dO7ON75vs+KV0NHjeEc0J+x9jdo02M7gg5PXG3YH1cxzi mzW78NsSJXwImaZsaCDL4bwYCx6o91wUCuW29Kybvzh+J8u41jW/+5YnX10Mg7jp o/CMY6O2vgG+MAOd2YIi7LMjgJRWg3my3PPrc4ahaBT4+9L7vHWExy9eRhemQvDN 1e2Q9sDk+uGvG1KCAVG24+2JcNyTEjN53x4FaPkw9EQ0bmUNLrYPksQUl6D/CbGB mg+Jrcq65cTHp5vpbI3UAd4uKAl2TnoyThIs1cO98spiF6s1MhhRFp+3Vtu8tLg= =CcWo -----END PGP SIGNATURE----- -- To unsubscribe from this list: send the line "unsubscribe linux-raid" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
