Hi,
 
  when to replace the SCSI disk based on smartctl output. what were the scenerios. Will the below output qualifies for replacement.
 
[root@xxxxx root]# /usr/local/git/sbin/smartctl -a /dev/sda
smartctl version 5.1-11 Copyright (C) 2002-3 Bruce Allen
Home page is http://smartmontools.sourceforge.net/
 
Device: MAXTOR   ATLAS10K5_73SCA  Version: JNZM
Serial number: D21606XK
Device type: disk
Local Time is: Sat Oct  7 09:53:00 2006 CDT
Device supports SMART and is Enabled
Temperature Warning Enabled
SMART Sense: Ok!
Current Drive Temperature:     32 C
Manufactured in week 05 of year
Current start stop count:      1074003968 times
Recommended start stop count:  1124401151 times
 
Error counter log:
          Errors Corrected    Total      Total   Correction     Gigabytes    Total
              delay:       [rereads/    errors   algorithm      processed    uncorrected
            minor | major  rewrites]  corrected  invocations   [10^9 bytes]  errors
read:      49911        0         0         0          0        246.024           0
write:         0        0         1         0          0        911.475           1
 
Non-medium error count:       21
 
SMART Self-test log
Num  Test              Status                 segment  LifeTime  LBA_first_err [SK ASC ASQ]
     Description                              number   (hours)
# 1  Background short  Failed in second segment    -  6647                   - [0x3 0xc 0x0]
# 2  Background short  Failed in second segment    -  6645                   - [0x3 0xc 0x0]
# 3  Background short  Failed in second segment    -  6643                   - [0x3 0xc 0x0]
# 4  Background short  Failed in second segment    -  6643                   - [0x3 0xc 0x0]
# 5  Background short  Failed in second segment    -  6643                   - [0x3 0xc 0x0]
# 6  Background long   Failed in second segment    -  6643                   - [0x3 0xc 0x0]
# 7  Background short  Failed in second segment    -  6643                   - [0x3 0xc 0x0]
# 8  Background short  Failed in second segment    -  6531                   - [0x3 0xc 0x0]
# 9  Background short  Failed in second segment    -  6458                   - [0x3 0xc 0x0]
#10  Background short  Failed in second segment    -  6383                   - [0x3 0xc 0x0]
#11  Background short  Failed in second segment    -  6358                   - [0x3 0xc 0x0]
#12  Background short  Failed in second segment    -  6335                   - [0x3 0xc 0x0]
#13  Background short  Failed in second segment    -  6315  0x               0 [-   -    -]
 
Long (extended) Self Test duration: 1440 seconds [24.0 minutes]
[root@xxxxx root]#
 
Can someone help me on this issue.
 
Regards,
Sundar