I'm trying to monitor my two SAS drives using the SMART Tools Plugin for MUNIN.
On SATA drives its no problem, all SMART values are being shown.
It seems that smartctl doesn't output valuable SMART values for SAS drives:
On Debian Squeeze with two SAS Drives "smartctl -A /dev/sda" outputs:
smartctl 5.40 2010-07-12 r3124 [x86_64-unknown-linux-gnu] (local build)
Copyright (C) 2002-10 by Bruce Allen, http://smartmontools.sourceforge.net
Current Drive Temperature: 43 C
Drive Trip Temperature: 85 C
Manufactured in week 10 of year 2012
Specified cycle count over device lifetime: 50000
Accumulated start-stop cycles: 6
Elements in grown defect list: 0
Vendor (Seagate) cache information
Blocks sent to initiator = 765815905320960
There is no information like on a SATA drive:
Vendor Specific SMART Attributes with Thresholds:
ID# ATTRIBUTE_NAME FLAG VALUE WORST THRESH TYPE UPDATED WHEN_FAILED RAW_VALUE
1 Raw_Read_Error_Rate 0x000f 099 099 051 Pre-fail Always - 2376
3 Spin_Up_Time 0x0007 091 091 011 Pre-fail Always - 3620
4 Start_Stop_Count 0x0032 100 100 000 Old_age Always - 405
......
Best Answer
S.M.A.R.T. is implemented in different ways in SCSI (SAS) and ATA (SATA) drives -- in particular, there is no concept of attributes in SCSI drives.