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Forum Discussion
MrCyberdude
Apr 15, 2010Tutor
2TB WD20EARS HCL Advanced Format 4k Sectors TLER LCC WDidle3
EDIT: This thread was written before the Readynas group had recognized and addressed the WD Advanced Format HDD's. An issue that remains to this day is the massive LCC(Load Cycle Count) increases due ...
MrCyberdude
Apr 21, 2010Tutor
Well a week on I have installed 6x2TB WD20EARS HDDs into A ReadyNas Pro Pioneer and Its running fine for the moment,
with the exception of the LCC (Load Cycle Count) which is rising too fast for anybodys liking.
I read somewhere that the WD20EARS is designed for around 1,000,000 LCC and at the rate of around 3000 per day thats 1000000/3000=333.3' Days for design life failure..
A guesstimation forcast of less than a year before harddrive failures.
NOT GOOD! and NOT Acceptable!!
Who has the solution, Netgear, infrant or Western Digital?
1. Does anyone know if ReadyNAS or WD has a related Fix?
2. Is this already implemented in a ReadyNasPro beta firmware or elswhere?
3. Can this be made as a Selectable option in FrontView (Please)?
4. Can the Jedi (anyone here) confirm/deny the use of WDidle3_1_05.zip or other tools as working with WD20EARS HDDs in the ReadyNasPro?
http://support.wdc.com/product/download.asp?groupid=609&sid=113&lang=en
Some comment or links please...
with the exception of the LCC (Load Cycle Count) which is rising too fast for anybodys liking.
I read somewhere that the WD20EARS is designed for around 1,000,000 LCC and at the rate of around 3000 per day thats 1000000/3000=333.3' Days for design life failure..
A guesstimation forcast of less than a year before harddrive failures.
NOT GOOD! and NOT Acceptable!!
Who has the solution, Netgear, infrant or Western Digital?
Linux Fix according to WD knowledge base
http://wdc.custhelp.com/cgi-bin/wdc.cfg/php/enduser/std_adp.php?p_faqid=5357
Problem: The Load/Unload counter for S.M.A.R.T Attribute 193 continues to increase under some distributions of the Linux Operating system.
Solution:
The number of systems using such applications and utilities is limited and customers can resolve this symptom by optimizing their systems with the following three options depending on requirements.
Do not wake up the drives unnecessarily every 10 to 30 seconds or so, thereby gaining substantial power savings and eliminating excess activity. Increasing logging to every 2 minutes would result in 525,600 minutes per year or 262,800 cycles per year. Increase to 5 minutes and cycles would not even be a factor.
a. Linux users: Decrease the logging message
i. Examine your /etc/syslog.conf file for unnecessary logging activity and to optimize its performance. If you don't want to log any system activity, consider disabling syslogd and klogd entirely; or, at the very least, minimize the amount of logging your system performs. You can also prefix each entry with the minus sign (-) to omit syncing the file after each log entry. This will log anything with a priority of info or higher, but lower than warning, to /var/log/messages or /var/log/mail without needing to sync to disk after each write. Since we want to keep all messages with a priority of warning, this will be logged to a different file without disabling disk syncing (to prevent data loss in the event of a system crash).
*.warning /var/log/syslog
*.info;*.!warning;mail.none -/var/log/messages
mail.info;mail.!warning -/var/log/mailii. Another item to be aware of is the -- MARK -- messages that syslogd(8) writes. This will affect your hard drive inactivity settings. You can simply disable this by running syslogd(8) with:
if [ -x /usr/sbin/syslogd -a -x /usr/sbin/klogd ]; then
# '-m 0' disabled 'MARK' messages
/usr/sbin/syslogd -m 0
sleep 1
# '-c 3' displays errors on console
# '-x' turns off broken EIP translation
/usr/sbin/klogd -c 3 -x
fi
b. Modify OS power management timers in control panel
Disable Advanced power management using standard ATA command (Uses more power as turns off all low power modes but results in no load/unload cycles)
Linux users add following (hdparm -B 255 /dev/sdX where X is your hard drive device)
ATA users can disable APM usually controlled via BIOS and/or OS.ATA users can disable APM usually controlled via BIOS and/or OS.
Set Idle3 to max time (effectively turns off load/unload power saving feature thus will use more power) per below link
1. Does anyone know if ReadyNAS or WD has a related Fix?
2. Is this already implemented in a ReadyNasPro beta firmware or elswhere?
3. Can this be made as a Selectable option in FrontView (Please)?
4. Can the Jedi (anyone here) confirm/deny the use of WDidle3_1_05.zip or other tools as working with WD20EARS HDDs in the ReadyNasPro?
http://support.wdc.com/product/download.asp?groupid=609&sid=113&lang=en
Some comment or links please...
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