Hello,
I keep running into errors while using an external eSATA drive. I have
searched for information regarding this issue, and there just is not
much out there. The best information I've seen mentions that a user was
having this issue, but it went away as long as the disk was connected to
the system at boot. That is not the case for me.
System information:
- Dell XPS 420
- Intel Q6600 cpu
- 4GB ram
- Seagate FreeAgent pro external 500GB disk (USB/Firewire/eSATA)
- lspci: 00:1f.2 RAID bus controller: Intel Corporation 82801 SATA
RAID Controller (rev 02)
- Note: I am not using the RAID functionality.
Software:
- Gentoo Linux
- Kernel: 2.6.25.8 vanilla, self-configured and installed
- Kernel config: http://fire-eyes.org/t/config-2.6.25.8-062708.txt
Reading the disk, things behave fine. When it's written to for a short
period, that is when errors begin to happen. An audible click can be
heard from the drive, transfers stop, and after a short pause, transfers
resume. This continues in a loop, with the clicking happening every 7
seconds or so. There appears to be no damage to the filesystem or
written files, everything just gets put on hold for a few seconds.
Curiously, this does not happen if I attach the disk with USB. I don't
have a firewire cable to try. The eSATA cable is six feet (1.8 meters)
long. Personally, I was a little surprised at how long this cable is; I
searched for a shorter one, and found none. I plan on trying a different
cable when I get around to it.
Here is a short collection of the errors seen when connected via eSATA
(no issues when using USB):
ata6.00: exception Emask 0x0 SAct 0x0 SErr 0x0 action 0x2
ata6.00: irq_stat 0x40000001
ata6.00: cmd 35/00:00:97:85:b0/00:04:0b:00:00/e0 tag 0 dma 524288 out
res 51/84:00:96:89:b0/00:00:0b:00:00/e0 Emask 0x10 (ATA bus error)
ata6.00: status: { DRDY ERR }
ata6.00: error: { ICRC ABRT }
ata6: hard resetting link
ata6: SATA link up 3.0 Gbps (SStatus 123 SControl 300)
ata6.00: configured for UDMA/133
ata6: EH complete
sd 5:0:0:0: [sdb] 976773168 512-byte hardware sectors (500108 MB)
sd 5:0:0:0: [sdb] Write Protect is off
sd 5:0:0:0: [sdb] Mode Sense: 00 3a 00 00
sd 5:0:0:0: [sdb] Write cache: enabled, read cache: enabled, doesn't
support DPO or FUA
Any pointers out there? If you require more information, please let me
know. Thank you for reading this post!
-- Fieldy
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