From: David M. <ma...@ca...> - 2006-07-31 17:20:24
|
We have 4 Maxtor ATLAS10K5_147SCA Version JNZH disks on a Sun Ultra320 dual channel scsi controller. All of them log tons of read: (Errors Corrected by ECC, fast) events. The current range on these disks is 118K to 1.3M such events. Lifetime is around 5700 hours. I've never seen any type of disk do this, and in fact none of the other disks on this system (Fujitsu FC disks) or on any of my other systems list anything but zero in this column. If it was just one disk I'd think it was failing, but since all 4 of them do it I'm wondering if this isn't just how these disks work normally. One of these disks did recently have two consecutive bad blocks appear, but that may have been due to the OS not parking the heads properly on a full power shutdown, since these appeared immediately after a power off for service. Anyway, except for that one disks two bad blocks, and these corrected read events, there have been no other errors. They pass the short and long offline tests. Should I worry about these many, many corrected read events? After my signature is a smartctl -a log for one of the disks that didn't have any bad blocks. Thanks, David Mathog ma...@ca... Manager, Sequence Analysis Facility, Biology Division, Caltech # smartctl -a /dev/rdsk/c4t1d0s0 smartctl version 5.36 [sparc-sun-solaris2.8] Copyright (C) 2002-6 Bruce Allen Home page is http://smartmontools.sourceforge.net/ Device: MAXTOR ATLAS10K5_147SCA Version: JNZH Serial number: D40R9MYK Device type: disk Transport protocol: Parallel SCSI (SPI-4) Local Time is: Mon Jul 31 10:17:07 2006 PDT Device supports SMART and is Enabled Temperature Warning Enabled SMART Health Status: OK Current Drive Temperature: 30 C Manufactured in week 05 of year Current start stop count: 1074003968 times Recommended maximum start stop count: 1124401151 times Elements in grown defect list: 0 Error counter log: Errors Corrected by Total Correction Gigabytes Total ECC rereads/ errors algorithm processed uncorrected fast | delayed rewrites corrected invocations [10^9 bytes] errors read: 118729 0 0 0 0 2366.645 0 write: 0 0 0 0 0 521.228 0 Non-medium error count: 48 Last n error events log page SMART Self-test log Num Test Status segment LifeTime LBA_first_err [SK ASC ASQ] Description number (hours) # 1 Background short Completed - 5858 - [- - -] # 2 Background long Completed - 5836 - [- - -] # 3 Background long Completed - 5811 - [- - -] # 4 Background short Completed - 5809 - [- - -] # 5 Background long Completed - 308 - [- - -] # 6 Background short Completed - 308 - [- - -] Long (extended) Self Test duration: 2880 seconds [48.0 minutes] |