On 10/26/2009 11:32 AM, Kam Leo wrote:
On Sat, Oct 24, 2009 at 5:12 AM, Andy Campbell
[snip]
[trantor] ~ $dmesg | grep ata7 ata7: SATA max UDMA/133 abar m8192@0xfeafe000 port 0xfeafe100 irq 10 ata7: SATA link up 3.0 Gbps (SStatus 123 SControl 300) ata7.00: ATA-8: WDC WD10EACS-00D6B1, 01.01A01, max UDMA/133 ata7.00: 1953525168 sectors, multi 0: LBA48 NCQ (depth 31/32) sda:<6>ata7.00: configured for UDMA/133 sde:<3>ata7.00: exception Emask 0x10 SAct 0x1 SErr 0x780100 action 0x6 ata7.00: irq_stat 0x08000000 ata7: SError: { UnrecovData 10B8B Dispar BadCRC Handshk }^ | This says that your controller and external drive can not reliably communicate at 3Gbps. Things to do to troubleshoot problem: 1. Make sure that your computer and external drive have proper electrical ground. Suggest both be plugged into same electrical outlet or power strip. Use a tester (it's a three prong device with three indicator lights) to verify that the AC is wired correctly. 2. Check your cable. Is it the proper length, in good condition, making good connection, etc.? 3. Exchange or replace the cable. 4. Test your drive on a different computer.
[snip]My drives are internal SATA & I have multiple nodes all showing this message:
Oct 25 04:30:57 rele406 kernel: ata5.01: qc timeout (cmd 0xa0)Oct 25 04:30:57 rele406 kernel: ata5.01: exception Emask 0x0 SAct 0x0 SErr 0x0 action 0x6 frozen Oct 25 04:30:57 rele406 kernel: ata5.01: cmd a0/00:00:00:00:00/00:00:00:00:00/b0 tag 0 Oct 25 04:30:57 rele406 kernel: cdb 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 Oct 25 04:30:57 rele406 kernel: res 51/20:03:00:00:00/00:00:00:00:00/b0 Emask 0x5 (timeout)
Oct 25 04:30:57 rele406 kernel: ata5.01: status: { DRDY ERR }
Oct 25 04:31:02 rele406 kernel: ata5: link is slow to respond, please be
patient (ready=0)
Oct 25 04:31:07 rele406 kernel: ata5: device not ready (errno=-16),
forcing hardreset
Oct 25 04:31:07 rele406 kernel: ata5: soft resetting link Oct 25 04:31:07 rele406 kernel: ata5.01: configured for UDMA/33 Oct 25 04:31:07 rele406 kernel: ata5: EH completeNot quite the same thing, of course.. but hoping you can tell me something about it. All drives & motheboards are same model. All are showing this error message at seemingly random intervals.
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