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Re: Houston Summer -> duplicate inode range

To: Federico Sevilla III <jijo@xxxxxxxxxxxxxxxxxxxx>
Subject: Re: Houston Summer -> duplicate inode range
From: "Bernhard R. Erdmann" <be@xxxxxxxxxxx>
Date: Sun, 29 Jul 2001 14:59:53 +0200
Cc: Linux XFS Mailing List <linux-xfs@xxxxxxxxxxx>
References: <Pine.LNX.4.33.0107291942010.20590-100000@xxxxxxxxxxxxxxxxxxxxxxxxxxxx>
Sender: owner-linux-xfs@xxxxxxxxxxx
> I have absolutely no experience or knowledge enough to help you out with
> your problem, but I was wondering: how does one monitor the temperature of
> the hard drives? I have sensors on my motherboard that I presume get the
> ambient temperature readings inside the case, and my hard drives are not
> too far away, but I was wondering if maybe hard drives have embedded
> thermal sensors? Or should the paranoid install some thermal sensor
> plastered on each drive?

Maybe you can use S.M.A.R.T. for that purpose (smartd, smartctl):

# /usr/sbin/smartctl -a /dev/hdb
Device: IBM-DTLA-307045  Supports ATA Version 5
Drive supports S.M.A.R.T. and is enabled
Check S.M.A.R.T. Passed

General Smart Values: 
Off-line data collection status: (0x00) Offline data collection activity
was
                                        never started

Self-test execution status:      (   0) The previous self-test routine
completed                                       without error or no self-test 
has ever 
                                        been run

Total time to complete off-line 
data collection:                 (2294) Seconds

Offline data collection 
Capabilities:                    (0x1b) SMART EXECUTE OFF-LINE IMMEDIATE
                                        Automatic timer ON/OFF support
                                        Suspend Offline Collection upon new
                                        command
                                        Offline surface scan supported
                                        Self-test supported

Smart Capablilities:           (0x0003) Saves SMART data before entering 
                                        power-saving mode
                                        Supports SMART auto save timer

Error logging capability:        (0x01) Error logging supported

Short self-test routine 
recommended polling time:        (   2) Minutes

Extended self-test routine 
recommended polling time:        (  28) Minutes

Vendor Specific SMART Attributes with Thresholds:
Revision Number: 16
Attribute                    Flag     Value Worst Threshold Raw Value
(  1)Raw Read Error Rate     0x000b   100   100   060       000000000000
(  2)Throughput Performance  0x0005   132   132   050       000000000157
(  3)Spin Up Time            0x0007   090   090   024       00060143013e
(  4)Start Stop Count        0x0012   100   100   000       00000000000b
(  5)Reallocated Sector Ct   0x0033   100   100   005       000000000000
(  7)Seek Error Rate         0x000b   100   100   067       000000000000
(  8)Seek Time Preformance   0x0005   130   130   020       000000000022
(  9)Power On Hours          0x0012   100   100   000       000000000450
( 10)Spin Retry Count        0x0013   100   100   060       000000000000
( 12)Power Cycle Count       0x0032   100   100   000       00000000000b
(192)Unknown Attribute       0x0032   100   100   050       00000000000b
(193)Unknown Attribute       0x0012   100   100   050       00000000000b
(194)Unknown Attribute       0x0002   105   105   000       000000000034
(196)Reallocated Event Count 0x0032   100   100   000       000000000000
(197)Current Pending Sector  0x0022   100   100   000       000000000000
(198)Offline Uncorrectable   0x0008   100   100   000       000000000000
(199)UDMA CRC Error Count    0x000a   200   200   000       000000000000
SMART Error Log:
SMART Error Logging Version: 1
No Errors Logged


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