> That's a kernel/performance issue. Perhaps there's an issue > with the storage driver. The fact that the load seems to be > low is probably because the metrics you're looking at are > misleading. For instance, the first delay occurs around the > time the backup client starts and it usually starts by scanning > all filesystems which probably means many small storage requests. > The later load is probably due to big I/O (file transfer) and it > seems to bother the kernel a bit less than the former one.
If I understand you correctly, when the load shows high it is because the kernel is reporting it correctly, but when the load shows low it is because the kernel is not reporting it correctly? If so, then sar and top cannot be relied upon. If there another way to get to the heart of the issue? -- Eric Robinson Disclaimer - October 15, 2009 This email and any files transmitted with it are confidential and intended solely for General Linux-HA mailing list. 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 Physician Select Management and Physician's Managed Care. Warning: Although Physician Select Management and Physician's Managed Care have taken reasonable precautions to ensure no viruses are present in this email, the companies cannot accept responsibility for any loss or damage arising from the use of this email or attachments. This disclaimer was added by Policy Patrol: http://www.policypatrol.com/ _______________________________________________ Linux-HA mailing list [email protected] http://lists.linux-ha.org/mailman/listinfo/linux-ha See also: http://linux-ha.org/ReportingProblems
