[CentOS] Strange performance issue on CentOS 6.7 server

Wed Feb 3 22:23:36 UTC 2016
Alfred von Campe <alfred at von-campe.com>

On Feb 3, 2016, at 17:10, Warren Young wrote:

> smartctl can see through several different types of RAID controller to the underlying physical disks via its -d option.

This is what I have:

# smartctl --all /dev/sda
smartctl 5.43 2012-06-30 r3573 [i686-linux-2.6.32-573.12.1.el6.i686] (local build)
Copyright (C) 2002-12 by Bruce Allen, http://smartmontools.sourceforge.net

Vendor:               IBM     
Product:              ServeRAID M5110e
Revision:             3.19
User Capacity:        1,494,996,746,240 bytes [1.49 TB]
Logical block size:   512 bytes
Logical Unit id:      0x60050760408e81b018be601809efd11c
Serial number:        001cd1ef091860be18b0818e40600705
Device type:          disk
Local Time is:        Wed Feb  3 17:13:34 2016 EST
Device does not support SMART

Error Counter logging not supported
Device does not support Self Test logging

I guess I am stuck since it says it doesn’t support SMART.  Or is there some way to get some status from this “disk” to see if it’s really the root cause of my performance issues.  I think I would have seen something in /var/log/messages if there was a critical issue.