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Date: Mon, 1 Oct 2007 09:21:34 +0200
From: Paolo Ornati <ornati@...twebnet.it>
To: Robert Hancock <hancockr@...w.ca>
Cc: Tejun Heo <htejun@...il.com>,
Linux Kernel Mailing List <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH] blacklist NCQ on Seagate Barracuda ST380817AS
On Sun, 30 Sep 2007 17:45:41 -0600
Robert Hancock <hancockr@...w.ca> wrote:
> Are you sure this isn't just a bum drive? Looking at the SMART listing
> that was posted, looks like it's had some uncorrectable sector read
> errors in the event log..
Don't know. The error count is still 12 today, the differences are:
-------------------------------------------------->
=== START OF INFORMATION SECTION ===
@@ -10,7 +10,7 @@
Device is: In smartctl database [for details use: -P show]
ATA Version is: 6
ATA Standard is: ATA/ATAPI-6 T13 1410D revision 2
-Local Time is: Sun Jan 21 20:15:40 2007 CET
+Local Time is: Mon Oct 1 09:01:05 2007 CEST
SMART support is: Available - device has SMART capability.
SMART support is: Enabled
@@ -48,21 +48,22 @@
SMART Attributes Data Structure revision number: 10
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 059 049 006 Pre-fail Always - 215927244
+ 1 Raw_Read_Error_Rate 0x000f 060 047 006 Pre-fail Always - 129093793
3 Spin_Up_Time 0x0003 098 098 000 Pre-fail Always - 0
- 4 Start_Stop_Count 0x0032 098 098 020 Old_age Always - 2182
+ 4 Start_Stop_Count 0x0032 097 097 020 Old_age Always - 3094
5 Reallocated_Sector_Ct 0x0033 100 100 036 Pre-fail Always - 0
- 7 Seek_Error_Rate 0x000f 083 060 030 Pre-fail Always - 204305750
- 9 Power_On_Hours 0x0032 097 097 000 Old_age Always - 3494
+ 7 Seek_Error_Rate 0x000f 084 060 030 Pre-fail Always - 298020973
+ 9 Power_On_Hours 0x0032 094 094 000 Old_age Always - 5274
10 Spin_Retry_Count 0x0013 100 100 097 Pre-fail Always - 0
- 12 Power_Cycle_Count 0x0032 098 098 020 Old_age Always - 2541
-194 Temperature_Celsius 0x0022 024 040 000 Old_age Always - 24 (Lifetime Min/Max 0/15)
-195 Hardware_ECC_Recovered 0x001a 059 049 000 Old_age Always - 215927244
+ 12 Power_Cycle_Count 0x0032 097 097 020 Old_age Always - 3457
+194 Temperature_Celsius 0x0022 023 040 000 Old_age Always - 23 (Lifetime Min/Max 0/15)
+195 Hardware_ECC_Recovered 0x001a 060 047 000 Old_age Always - 129093793
197 Current_Pending_Sector 0x0012 100 100 000 Old_age Always - 1
198 Offline_Uncorrectable 0x0010 100 100 000 Old_age Offline - 1
199 UDMA_CRC_Error_Count 0x003e 200 200 000 Old_age Always - 0
200 Multi_Zone_Error_Rate 0x0000 100 253 000 Old_age Offline - 0
202 TA_Increase_Count 0x0032 100 253 000 Old_age Always - 0
<-------------------------------
Moreover the five logged errors are all about the same sector:
----------------------------------------------------------------------------
Error 12 occurred at disk power-on lifetime: 2516 hours (104 days + 20 hours)
When the command that caused the error occurred, the device was active or idle.
After command completion occurred, registers were:
ER ST SC SN CL CH DH
-- -- -- -- -- -- --
40 51 0d 5b 9d 34 e1 Error: UNC 13 sectors at LBA = 0x01349d5b = 20225371
-----------------------------------------------------------------------------
That sector isn't in mine XFS partition (sda1):
First Last
# Type Sector Sector Offset Length Filesystem Type (ID) Flag
-- ------- ----------- ----------- ------ ----------- -------------------- ----
1 Primary 0 20000924* 63 20000925*Linux (83) Boot
2 Primary 20000925* 156296384 0 136295460 Extended (05) None
5 Logical 20000925* 20161574* 63 160650 Linux (83) None
6 Logical 20161575* 120166199 63 100004625 Linux (83) None
7 Logical 120166200 122174324 63 2008125 Linux swap / So (82) None
8 Logical 122174325 156296384 63 34122060 Linux (83) None
So I don't know. To me it looks like these errors are not related...
--
Paolo Ornati
Linux 2.6.23-rc8-ga64314e6 on x86_64
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