From: John McMonagle <johnm@advocap.org>
To: linux-raid@vger.kernel.org
Subject: slow resync??
Date: Wed, 02 Mar 2005 09:49:48 -0600 [thread overview]
Message-ID: <4225E09C.5010401@advocap.org> (raw)
Have a backup system that recently had a kernel panic and am having
problems with rsync.
It's a p2 460mhz mb 512 mb ram.
promise sata comtroler.
3 200gb sata drives
debain sarge
2.6.10 kernel from kernel.org with smart sata patches.
mdadm v1.9.0
/proc/mdstat
Personalities : [raid1] [raid5]
md0 : active raid1 sdb1[0] sda1[2] sdc1[1]
586240 blocks [3/3] [UUU]
md1 : active raid5 sda2[0] sdc2[2] sdb2[1]
389543936 blocks level 5, 128k chunk, algorithm 2 [3/3] [UUU]
[=====>...............] resync = 28.9% (56429568/194771968)
finish=1374.9min speed=1675K/sec
unused devices: <none>
Was running just fine for a few months.
System is very unresponsive. Sometimes takes a minute to respond to cat
/proc/mdstat
I know some of this is because it's doing it's normal programs but it
was not that much better in single user mode.
Much to my amazement it managed to do the overnight backups while resyncing.
Interested why it takes so long and if there is anything one can do?
As i recall it took about 120 minutes to build initially.
Other related issue:
Tried to resync on the sarge 2.6.8 kernel it seemed to go a little bit
faster but it ended up kernel panicing at about 30%. Did this twice.
Now I'm on the 2.6.10 and getting close to that point . Will know if it
makes it past that soon.
I did get a smart message this morning but it not clear to me that there
is anything wrong.
Here is the email:
This email was generated by the smartd daemon running on:
host name: fonbackup
DNS domain: advocap.org
NIS domain: (none)
The following warning/error was logged by the smartd daemon:
Device: /dev/sdb, Self-Test Log error count increased from 0 to 1
For details see host's SYSLOG (default: /var/log/messages).
You can also use the smartctl utility for further investigation.
..................................................
smartctl -a -d ata /dev/sdb
smartctl version 5.32 Copyright (C) 2002-4 Bruce Allen
Home page is http://smartmontools.sourceforge.net/
=== START OF INFORMATION SECTION ===
Device Model: WDC WD2000JD-00FYB0
Serial Number: WD-WMAEH2121689
Firmware Version: 02.05D02
Device is: In smartctl database [for details use: -P show]
ATA Version is: 6
ATA Standard is: Exact ATA specification draft version not indicated
Local Time is: Wed Mar 2 06:51:26 2005 CST
SMART support is: Available - device has SMART capability.
SMART support is: Enabled
=== START OF READ SMART DATA SECTION ===
SMART overall-health self-assessment test result: PASSED
See vendor-specific Attribute list for marginal Attributes.
General SMART Values:
Offline data collection status: (0x85) Offline data collection activity
was aborted by an interrupting command from host.
Auto Offline Data Collection: Enabled.
Self-test execution status: ( 73) The previous self-test completed having
a test element that failed and the test
element that failed is not known.
Total time to complete Offline
data collection: (6933) seconds.
Offline data collection
capabilities: (0x79) SMART execute Offline immediate.
No Auto Offline data collection support.
Suspend Offline collection upon new
command.
Offline surface scan supported.
Self-test supported.
Conveyance Self-test supported.
Selective Self-test supported.
SMART capabilities: (0x0003) Saves SMART data before entering
power-saving mode.
Supports SMART auto save timer.
Error logging capability: (0x01) Error logging supported.
No General Purpose Logging support.
Short self-test routine
recommended polling time: ( 2) minutes.
Extended self-test routine
recommended polling time: ( 88) minutes.
Conveyance self-test routine
recommended polling time: ( 5) minutes.
SMART Attributes Data Structure revision number: 16
Vendor Specific SMART Attributes with Thresholds:
ID# ATTRIBUTE_NAME FLAG VALUE WORST THRESH TYPE UPDATED WHEN_FAILED RAW_VALUE
1 Raw_Read_Error_Rate 0x000b 001 001 051 Pre-fail Always FAILING_NOW 12058
3 Spin_Up_Time 0x0007 124 122 021 Pre-fail Always - 4316
4 Start_Stop_Count 0x0032 100 100 040 Old_age Always - 24
5 Reallocated_Sector_Ct 0x0033 200 200 140 Pre-fail Always - 0
7 Seek_Error_Rate 0x000b 200 200 051 Pre-fail Always - 0
9 Power_On_Hours 0x0032 099 099 000 Old_age Always - 1263
10 Spin_Retry_Count 0x0013 100 253 051 Pre-fail Always - 0
11 Calibration_Retry_Count 0x0013 100 253 051 Pre-fail Always - 0
12 Power_Cycle_Count 0x0032 100 100 000 Old_age Always - 24
194 Temperature_Celsius 0x0022 115 253 000 Old_age Always - 35
196 Reallocated_Event_Count 0x0032 200 200 000 Old_age Always - 0
197 Current_Pending_Sector 0x0012 200 200 000 Old_age Always - 0
198 Offline_Uncorrectable 0x0012 200 200 000 Old_age Always - 0
199 UDMA_CRC_Error_Count 0x000a 200 253 000 Old_age Always - 0
200 Multi_Zone_Error_Rate 0x0009 200 155 051 Pre-fail Offline - 0
SMART Error Log Version: 1
No Errors Logged
SMART Self-test log structure revision number 1
Num Test_Description Status Remaining LifeTime(hours) LBA_of_first_error
# 1 Short offline Completed: unknown failure 90% 170 1114112
# 2 Short offline Completed without error 00% 126 -
# 3 Short offline Completed without error 00% 103 -
# 4 Short offline Completed without error 00% 79 -
# 5 Short offline Completed without error 00% 56 -
# 6 Short offline Completed without error 00% 32 -
# 7 Short offline Completed without error 00% 9 -
# 8 Extended offline Completed without error 00% 1081 -
# 9 Short offline Completed without error 00% 1079 -
#10 Short offline Completed without error 00% 1056 -
#11 Short offline Completed without error 00% 1032 -
#12 Short offline Completed without error 00% 1009 -
#13 Short offline Completed without error 00% 985 -
#14 Short offline Completed without error 00% 962 -
#15 Short offline Completed without error 00% 939 -
#16 Extended offline Completed without error 00% 919 -
#17 Short offline Completed without error 00% 916 -
#18 Short offline Completed without error 00% 893 -
#19 Short offline Completed without error 00% 869 -
#20 Short offline Completed without error 00% 846 -
#21 Short offline Completed without error 00% 823 -
SMART Selective self-test log data structure revision number 1
SPAN MIN_LBA MAX_LBA CURRENT_TEST_STATUS
1 0 0 Not_testing
2 0 0 Not_testing
3 0 0 Not_testing
4 0 0 Not_testing
5 0 0 Not_testing
Selective self-test flags (0x0):
After scanning selected spans, do NOT read-scan remainder of disk.
If Selective self-test is pending on power-up, resume after 0 minute delay.
......................................
Any sugestions?
John
next reply other threads:[~2005-03-02 15:49 UTC|newest]
Thread overview: 5+ messages / expand[flat|nested] mbox.gz Atom feed top
2005-03-02 15:49 John McMonagle [this message]
2005-03-03 14:12 ` slow resync+ kernel panic?? John McMonagle
2005-03-08 2:02 ` John McMonagle
2005-03-08 3:41 ` Molle Bestefich
2005-03-08 3:51 ` Molle Bestefich
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