[Bug 545170] [NEW] Sar adds together the block I/O of /dev/sda and /dev/sdaX
jwbaker at gmail.com
Tue Mar 23 15:31:48 GMT 2010
Public bug reported:
Binary package hint: sysstat
Upstream bug I suppose, but sysstat adds together the block I/O of a
partition and the disk it is on, double-counting all the I/O to or from
a disk. WIth LVM, sar counts the I/O to the PV and the I/O to the LV.
This makes the figures reported by sar -b effectively useless.
Sar should take the topology into account, and not double-count.
Date: Tue Mar 23 06:01:45 2010
DistroRelease: Ubuntu 9.10
Package: sysstat 9.0.3-2ubuntu1
ProcVersionSignature: Ubuntu 2.6.31-302.7-ec2
Uname: Linux 2.6.31-302-ec2 i686
** Affects: sysstat (Ubuntu)
** Tags: apport-bug ec2-images i386
Sar adds together the block I/O of /dev/sda and /dev/sdaX
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