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<DIV dir=ltr align=left><FONT color=#0000ff size=2 face=Verdana><SPAN
class=365022822-12102010>I'm happy with the performance of our DRBD clusters.
They have scaled very well. One of our older drbd 8.0.14 clusters is pretty busy
these days servicing about 130 separate instances of MySQL and is seeing bursts
of 10-30% iowait, sometimes more, for maybe 3-4 seconds at a time. Someone told
me I could increase performance and reduce iowait by mounting the ext3
filesystem with the "noatime" option. Are there any dangers to be concerned
about when mounting a drbd device using the noatime option?</SPAN></FONT></DIV>
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<P style="MARGIN: 0in 0in 0pt" class=MsoNormal align=left><SPAN
style="FONT-FAMILY: Tahoma; FONT-SIZE: 10pt"><FONT
face=verdana>--<BR></FONT></SPAN><SPAN
style="FONT-FAMILY: Tahoma; FONT-SIZE: 10pt"><FONT face=verdana>Eric
Robinson<BR></FONT></SPAN></P><BR><BR><FONT color=silver><SPAN style="FONT-SIZE: 7.5pt; COLOR: gray; FONT-FAMILY: Verdana"><FONT size=1>Disclaimer - October 12, 2010</FONT></FONT></SPAN></FONT> <P></P><FONT size=1><FONT face=Verdana color=gray><SPAN style="FONT-SIZE: 7.5pt; COLOR: gray; FONT-FAMILY: Verdana">This email and any files <FONT size=1>transmitted</FONT> with it are confidential and intended solely for <STRONG>drbd-user@lists.linbit.com</STRONG></SPAN></FONT><FONT face=Verdana color=gray><SPAN style="FONT-SIZE: 7.5pt; COLOR: gray; FONT-FAMILY: Verdana">. If you are not the named addressee you should not disseminate, distribute, copy or alter this email. Any views or opinions presented in this email are solely those of the author and might not represent those of Physicians' Managed Care or Physician Select Management. Warning: Although Physicians' Managed Care or Physician Select Management has taken reasonable precautions to ensure no viruses are present in this email, the company cannot accept responsibility for any loss or damage arising from the use of this email or attachments.</SPAN></FONT></FONT></BODY></HTML>