Dedhi Sujatmiko
2010-Jan-24 03:44 UTC
[zfs-discuss] What is the normal operating temperature for consumer SATA drive?
I am curious to know what is the normal operating temperature of consumer SATA drive, and what is the considered maximum limit I need to watch out? These are my disks SMART output under FreeNAS 0.7RC2, where my ambient temperature is 28 C without air conditioning. ad4 476941MB ST3500418AS/CC38 10.36 KiB/t, 0 tps, 0.00 MiB/s 34 ?C ONLINE ad6 476941MB ST3500418AS/CC34 9.70 KiB/t, 0 tps, 0.00 MiB/s 32 ?C ONLINE ad8 476941MB ST3500320AS/SD1A 13.12 KiB/t, 0 tps, 0.00 MiB/s 31 ?C ONLINE ad10 476941MB ST3500320AS/SD1A 12.63 KiB/t, 0 tps, 0.00 MiB/s 31 ?C ONLINE ad12 953870MB Hitachi HDT721010SLA360/ST6OA31B 51.87 KiB/t, 6 tps, 0.30 MiB/s 45 ?C ONLINE ad14 953870MB Hitachi HDS721010CLA332/JP4OA25C 53.38 KiB/t, 6 tps, 0.30 MiB/s 42 ?C ONLINE da0 476941MB USB External 500GB 5.75 KiB/t, 0 tps, 0.00 MiB/s n/a ONLINE As you can see from the above, the Hitachi drives (2 x mirror) are always hotter than Seagate (4 x raidz), although they are on the same cooling mechanism. Thanks in advance, Dedhi
Eric D. Mudama
2010-Jan-24 06:14 UTC
[zfs-discuss] What is the normal operating temperature for consumer SATA drive?
On Sun, Jan 24 at 11:44, Dedhi Sujatmiko wrote:>I am curious to know what is the normal operating temperature of >consumer SATA drive, and what is the considered maximum limit I need >to watch out? > >These are my disks SMART output under FreeNAS 0.7RC2, where my >ambient temperature is 28 C without air conditioning. > >ad4 476941MB ST3500418AS/CC38 10.36 KiB/t, 0 tps, >0.00 MiB/s 34 ?C ONLINE >ad6 476941MB ST3500418AS/CC34 9.70 KiB/t, 0 tps, 0.00 >MiB/s 32 ?C ONLINE >ad8 476941MB ST3500320AS/SD1A 13.12 KiB/t, 0 tps, 0.00 >MiB/s 31 ?C ONLINE >ad10 476941MB ST3500320AS/SD1A 12.63 KiB/t, 0 tps, 0.00 >MiB/s 31 ?C ONLINE >ad12 953870MB Hitachi HDT721010SLA360/ST6OA31B 51.87 >KiB/t, 6 tps, 0.30 MiB/s 45 ?C ONLINE >ad14 953870MB Hitachi HDS721010CLA332/JP4OA25C 53.38 >KiB/t, 6 tps, 0.30 MiB/s 42 ?C ONLINE >da0 476941MB USB External 500GB 5.75 KiB/t, 0 tps, 0.00 >MiB/s n/a ONLINE > >As you can see from the above, the Hitachi drives (2 x mirror) are >always hotter than Seagate (4 x raidz), although they are on the same >cooling mechanism. > >Thanks in advance, > >DedhiThose temperatures are fine, I wouldn''t worry about it. If you get much above 45C you might want to get a bit more airflow over the hitachi drives. It''s possible the mirror drives are doing more seeking thus driving their temps up as well. -- Eric D. Mudama edmudama at mail.bounceswoosh.org