Posted: 07 Feb 2009, 14:20
some info i found about the load cycles:
Affected Models:
WD1000FYPS-01ZKB0, WD7500AYPS-01ZKB0, WD7501AYPS-01ZKB0
Problem
The Load/Unload counter for S.M.A.R.T ATTRIBUTE 193 continues to increase for the following drives: WD1000FYPS-01ZKB0, WD7500AYPS-01ZKB0, WD7501AYPS-01ZKB0.
Symptom:
WD drives are designed to reduce power consumption, in part by positioning the heads in a park position (unloading the heads) and turning off unnecessary electronics, resulting in substantial power savings. WD defines this mode as Idle 3.
Some utilities, operating systems, and applications, such as some implementations of Linux, for example, are not optimized for low power storage devices and can cause our drives to wake up at a higher rate than normal. This effectively negates the power-saving advantages of low-power drives, such as Western Digital’s RE2GP, and artificially increases the number of load-unload cycles.
Solution:
The number of systems using such applications and utilities is limited and customers can resolve this symptom by optimizing their systems to not wake up the drives unnecessarily every 10 to 30 seconds or so, thereby gaining substantial power savings and eliminating superfluous activity.
Most customers, when made aware of the unnecessary activity caused by their systems, have modified their utility, operating systems, or applications to take advantage of Western Digital's advanced power-saving mode. Other customers have requested a utility (See link below) to modify the behavior of the drive to wait longer before invoking Idle 3 mode. Although such a change eliminates significant power savings during periods of inactivity. This update is described in WD's Process Change Notice PCN 2579-701324-A02 (see attached PDF file).
Please click on this link, RE2GP Idle Mode Update Utility, to download the utility.
NOTE: The update also supports a low-power spin-up feature optimized for highly energy efficient, large scale storage applications, which is enabled using a utility, WDSpinUp Utility, also available at the RE2GP Download page.
hmm as i can read the manufacture is asking us to optimize bubba.
about the load cycle i found this:
I have the WD GP 500 gb as well. Device Model: WDC WD5000AACS-00ZUB0
Monitoring the HD over 13 minutes recorded a Load_Cycle_Count increase by 28. All
mount points are mounted with noatime,nodiratime in the fstab.
So, a little over 2 times per minute. Assuming the 600000 cycles mentioned in this thread, this gives it a lifetime of around 193 days of continuous uptime. read more:https://bugs.launchpad.net/ubuntu/jaunt ... mments/431
All the solutions tried but failed read more: http://www.synology.com/enu/forum/viewt ... 653#p49019
I'm afraid that excito had to optimize bubbatwo to solve this.
Rewien
ps; Thanks Johannes for your quick reply[/url]
Affected Models:
WD1000FYPS-01ZKB0, WD7500AYPS-01ZKB0, WD7501AYPS-01ZKB0
Problem
The Load/Unload counter for S.M.A.R.T ATTRIBUTE 193 continues to increase for the following drives: WD1000FYPS-01ZKB0, WD7500AYPS-01ZKB0, WD7501AYPS-01ZKB0.
Symptom:
WD drives are designed to reduce power consumption, in part by positioning the heads in a park position (unloading the heads) and turning off unnecessary electronics, resulting in substantial power savings. WD defines this mode as Idle 3.
Some utilities, operating systems, and applications, such as some implementations of Linux, for example, are not optimized for low power storage devices and can cause our drives to wake up at a higher rate than normal. This effectively negates the power-saving advantages of low-power drives, such as Western Digital’s RE2GP, and artificially increases the number of load-unload cycles.
Solution:
The number of systems using such applications and utilities is limited and customers can resolve this symptom by optimizing their systems to not wake up the drives unnecessarily every 10 to 30 seconds or so, thereby gaining substantial power savings and eliminating superfluous activity.
Most customers, when made aware of the unnecessary activity caused by their systems, have modified their utility, operating systems, or applications to take advantage of Western Digital's advanced power-saving mode. Other customers have requested a utility (See link below) to modify the behavior of the drive to wait longer before invoking Idle 3 mode. Although such a change eliminates significant power savings during periods of inactivity. This update is described in WD's Process Change Notice PCN 2579-701324-A02 (see attached PDF file).
Please click on this link, RE2GP Idle Mode Update Utility, to download the utility.
NOTE: The update also supports a low-power spin-up feature optimized for highly energy efficient, large scale storage applications, which is enabled using a utility, WDSpinUp Utility, also available at the RE2GP Download page.
hmm as i can read the manufacture is asking us to optimize bubba.
about the load cycle i found this:
I have the WD GP 500 gb as well. Device Model: WDC WD5000AACS-00ZUB0
Monitoring the HD over 13 minutes recorded a Load_Cycle_Count increase by 28. All
mount points are mounted with noatime,nodiratime in the fstab.
So, a little over 2 times per minute. Assuming the 600000 cycles mentioned in this thread, this gives it a lifetime of around 193 days of continuous uptime. read more:https://bugs.launchpad.net/ubuntu/jaunt ... mments/431
All the solutions tried but failed read more: http://www.synology.com/enu/forum/viewt ... 653#p49019
I'm afraid that excito had to optimize bubbatwo to solve this.
Rewien
ps; Thanks Johannes for your quick reply[/url]