On 2013-05-03 8:34 AM, Stan Hoeppner stan@hardwarefreak.com wrote:
I assume /var will hold user mail dirs.
Yes, in /var/vmail
Do /var/ and /snaps reside on the same RAID array, physical disks?
Yes - vmware host is a Dell R515, with ESXi installed to mirrored internal SATA drives, with 8 drives in RAID 10 for all of the VMs. All storage is this local storage (no SAN/NAS).
How about the other filesystems I snipped? If you have a large number of filesystems atop the same RAID, some of them being XFS, this could create a head thrashing problem under high load increasing latency and thus response times.
Ouch...
This ESXi host also hosts 2 server 2008R2 vms...
Would you mind posting: ~$ xfs_info /dev/vg/var
# xfs_info /dev/vg/var meta-data=/dev/mapper/vg-var isize=256 agcount=4, agsize=45875200 blks = sectsz=512 attr=2 data = bsize=4096 blocks=183500800, imaxpct=25 = sunit=0 swidth=0 blks naming =version 2 bsize=4096 ascii-ci=0 log =internal bsize=4096 blocks=89600, version=2 = sectsz=512 sunit=0 blks, lazy-count=1 realtime =none extsz=4096 blocks=0, rtextents=0
~$ xfs_info /dev/vg/snaps
# xfs_info /dev/vg/snaps meta-data=/dev/mapper/vg-snaps isize=256 agcount=4, agsize=262144 blks = sectsz=512 attr=2 data = bsize=4096 blocks=1048576, imaxpct=25 = sunit=0 swidth=0 blks naming =version 2 bsize=4096 ascii-ci=0 log =internal bsize=4096 blocks=2560, version=2 = sectsz=512 sunit=0 blks, lazy-count=1 realtime =none extsz=4096 blocks=0, rtextents=0
Thanks again Stan...
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Best regards,
Charles