On 11/24/2012 04:13 AM, Alan Cox wrote:
On Sat, 24 Nov 2012 01:34:59 -0700
JD <jd1008@xxxxxxxxx> wrote:
which info retrieved by sdparam or hdparam would indicate
that the drive is reaching it's EOL.
You want the smart health test man smartctl. I suspect --health is what
you are looking for ?
Interesting!
Running
# smartctl -H /dev/sdc
smartctl 5.43 2012-06-30 r3573 [i686-linux-3.6.6-1.fc16.i686] (local build)
Copyright (C) 2002-12 by Bruce Allen, http://smartmontools.sourceforge.net
=== START OF READ SMART DATA SECTION ===
SMART overall-health self-assessment test result: PASSED
Yet, running smartctl -x shows a few pre-failure
values. To wit:
1 Raw_Read_Error_Rate POSR-- 117 099 006 - 131606848
5 Reallocated_Sector_Ct PO--CK 100 100 036 - 3
7 Seek_Error_Rate POSR-- 083 060 030 - 209089036
10 Spin_Retry_Count PO--C- 100 100 097 - 0
I am having serious problems with disk writes because the disks
are going to standby, which the OS (F16) is not handling it correctly
and reports write failures, especially during shutdown where it is
unable to write the journal to the disk and reports journal commit
failures:
messages:Nov 20 20:51:25 localhost kernel: [46916.385586] journal commit
I/O error
messages:Nov 20 20:51:25 localhost kernel: [46916.385998] journal commit
I/O error
messages:Nov 20 21:14:03 localhost kernel: [48274.947764] journal commit
I/O error
messages-20121118:Nov 16 23:42:05 localhost kernel: [ 4543.391840]
journal commit I/O error
Yet, this does not happen if I shutdown after doing
ls -R /<mount point> on the sleeping drives, which wakes them up
and then I shutdown and no more write journal errors.
So, I have been looking for ways to prevent the drives from going to sleep.
Only thing I have found was the option -s in the manpage for hdparm, but it
has the "VERY DANGEROUS" phrase tacked to it, but without explanation as to
the consequences of the danger.
But, I to a chance. I first woke up the drive by writing a small junk file
to a dir in one of it's mounted partitions, then ran
# hdparm -C /dev/sdc
/dev/sdc:
drive state is: active/idle
# hdparm -s 0 /dev/sdc
/dev/sdc:
spin-up: setting power-up in standby to 0 (off)
HDIO_DRIVE_CMD(powerup_in_standby) failed: Input/output error
Tried it a few times, and still getting io error,
but the rest of normal operation are OK, as long as the disk
is not in standby when a write command is issued.
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