<pre>> The following warning/error was logged by the smartd daemon:<br><br>> Device: /dev/hdb, 2 Currently unreadable (pending) sectors<br><br>> For details see host's SYSLOG (default: /var/log/messages).<br><br>
> You can also use the smartctl utility for further investigation.<br>> No additional email messages about this problem will be sent.</pre><br>Unfortunately, these errors are for real.<br><br>They mean that you have two sectors (512 bytes each) that cannot
<br>be read anymore. In the next attempt to write them, they will be reallocated<br>to another area on the disk, and the error will disappear. <br>This is done by the disk hardware, and have nothing to do with the BIOS.<br>
<br>I have one Seagate IDE disk that started to give me these messages. The first time I checked, there<br>were 23 reallocated sectors. Today, more than 350. It is a thing that can stop, after reallocating<br>a few sectors, or not, as in my case. As a consequence, the disk becomes considerably slower.
<br><br>If you use smartctl on a health disk, the number of reallocated sectors must be ZERO.<br>If you see more than a few, do not trust the disk anymore. The makers say that more than<br>one bad sector per year of use is a bad sign. On the other hand, I also have other disks with 5 or 6 bad sectors
<br>and they have been working 24/7 for years.<br clear="all"><br>Vendor Specific SMART Attributes with Thresholds:<br>ID# ATTRIBUTE_NAME FLAG VALUE WORST THRESH TYPE UPDATED WHEN_FAILED RAW_VALUE<br> 1 Raw_Read_Error_Rate 0x000f 115 094 006 Pre-fail Always - 92645708
<br> 3 Spin_Up_Time 0x0003 096 096 000 Pre-fail Always - 0<br> 4 Start_Stop_Count 0x0032 100 100 020 Old_age Always - 43<br> 5 Reallocated_Sector_Ct 0x0033 100 100 036 Pre-fail Always - 0 <---------------------------------------------------
<br> 7 Seek_Error_Rate 0x000f 070 060 030 Pre-fail Always - 10622981<br> 9 Power_On_Hours 0x0032 100 100 000 Old_age Always - 472<br><br><br>-- <br>Paulo Roma Cavalcanti
<br>LCG - UFRJ