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Forum Discussion
High 'Raw Read Error Rate', but SMART says 'OK'
Hi,
a customer's ReadyNAS 3100 shows the SMART values as you can see below.
What bothers me are the high (?) "Raw Read Error Rate" values.
The SMART Status is OK.
Are those normal values or should we replaye the disks one by one?
Thank you,
regards,
Christian
Modell: ReadyNAS 3100 [X-RAID2]
Firmware: RAIDiator 4.2.19
Speicher: 2048 MB [DDR2]
DISC 1:
Modell: WDC WD1003FBYX-01Y7B0
Seriennummer: WD-WCAW32515110
Firmware: 01.01V01
SMART-Attribute
Raw Read Error Rate 2595
Spin Up Time 4375
Start Stop Count 29
Reallocated Sector Count 0
Seek Error Rate 0
Power On Hours 46672
Spin Retry Count 0
Calibration Retry Count 0
Power Cycle Count 27
Power-Off Retract Count 21
Load Cycle Count 7
Temperature Celsius 38
Reallocated Event Count 0
Current Pending Sector 2
Offline Uncorrectable 0
UDMA CRC Error Count 0
Multi Zone Error Rate 0
ATA Error Count 0
DISC 2:
Modell: WDC WD1003FBYX-01Y7B0
Seriennummer: WD-WCAW32480827
Firmware: 01.01V01
SMART-Attribute
Raw Read Error Rate 487
Spin Up Time 4266
Start Stop Count 29
Reallocated Sector Count 0
Seek Error Rate 0
Power On Hours 46665
Spin Retry Count 0
Calibration Retry Count 0
Power Cycle Count 27
Power-Off Retract Count 21
Load Cycle Count 7
Temperature Celsius 36
Reallocated Event Count 0
Current Pending Sector 1
Offline Uncorrectable 0
UDMA CRC Error Count 0
Multi Zone Error Rate 0
ATA Error Count 0
DISC 3:
Modell: WDC WD1003FBYX-01Y7B0
Seriennummer: WD-WCAW32480830
Firmware: 01.01V01
SMART-Attribute
Raw Read Error Rate 34
Spin Up Time 4291
Start Stop Count 30
Reallocated Sector Count 0
Seek Error Rate 0
Power On Hours 46670
Spin Retry Count 0
Calibration Retry Count 0
Power Cycle Count 27
Power-Off Retract Count 21
Load Cycle Count 8
Temperature Celsius 35
Reallocated Event Count 0
Current Pending Sector 0
Offline Uncorrectable 0
UDMA CRC Error Count 0
Multi Zone Error Rate 0
ATA Error Count 0
DISC 4:
Modell: WDC WD1003FBYX-01Y7B0
Seriennummer: WD-WCAW32480739
Firmware: 01.01V01
SMART-Attribute
Raw Read Error Rate 1206
Spin Up Time 4283
Start Stop Count 29
Reallocated Sector Count 0
Seek Error Rate 0
Power On Hours 46671
Spin Retry Count 0
Calibration Retry Count 0
Power Cycle Count 27
Power-Off Retract Count 21
Load Cycle Count 7
Temperature Celsius 36
Reallocated Event Count 0
Current Pending Sector 0
Offline Uncorrectable 0
UDMA CRC Error Count 0
Multi Zone Error Rate 0
ATA Error Count 0
2 Replies
Replies have been turned off for this discussion
Update:
Since the time I wrote my post the values for Raw Read Error Rate only increased while the NAS did a "RAID scrubbing" on saturday night.
Before that and since then there is no change to the value on all four discs.
Regards,
Christian
Hi,
I suggest to test disk with WD tool,
Shutdown the nas.
Extract only one disk at time and connect via a docking station to a windows pc and lauch WD tool (search it on WD support site for the latest version)
The values are not good, specially 'Current Pending Sector 1'
I suggest a full backup as soon as possible
Giuseppe
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