Re: eSATA drive won't mount. Wrong data rate ?

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On Thu, 2008-10-02 at 11:34 -0400, Linuxguy123 wrote:
> Some of this was previously discussed in the "External eSATA drive
> doesn't fdisk properly ? F8 eSATA hotplug ?" thread.
> 
> Computer: HP hdx9494.  T8100 processor, 4 GB RAM, running 32 bit Fedora
> 8.
> 
> Drive: Azio SATA/USB enclosure, Hitachi 500GB 3.5" hard drive.   The
> drive works excellent under USB access. 
> 
> $ uname -a
> Linux localhost.localdomain 2.6.26.5-28.fc8 #1 SMP Sat Sep 20 09:32:58
> EDT 2008 i686 i686 i386 GNU/Linux
> 
> If I shut the machine off, power up the external drive and then boot the
> computer, I get the following in /var/logs/messages:
> 
> Oct  2 11:10:37 localhost kernel:  sdb: sdb1
> Oct  2 11:10:37 localhost kernel: sd 2:0:0:0: [sdb] Attached SCSI disk
> Oct  2 11:10:37 localhost kernel: ACPI: PCI Interrupt 0000:20:00.0[A] ->
> GSI 19 (level, low) -> IRQ 19
> Oct  2 11:10:37 localhost kernel: scsi3 : sata_sil24
> Oct  2 11:10:37 localhost kernel: ata4: SATA max UDMA/100 host
> m128@0xe0100000 port 0xe0102000 irq 19
> Oct  2 11:10:37 localhost kernel: ata4: SATA link up 1.5 Gbps (SStatus
> 113 SControl 0)
> Oct  2 11:10:37 localhost kernel: ata4.00: ATA-8: Hitachi
> HDP725050GLA360, GM4OA52A, max UDMA/133
> Oct  2 11:10:37 localhost kernel: ata4.00: 976773168 sectors, multi 0:
> LBA48 NCQ (depth 31/32)
> Oct  2 11:10:37 localhost kernel: ata4.00: configured for UDMA/100
> Oct  2 11:10:37 localhost kernel: scsi 3:0:0:0: Direct-Access     ATA
> Hitachi HDP72505 GM4O PQ: 0 ANSI: 5
> Oct  2 11:10:37 localhost kernel: sd 3:0:0:0: [sdc] 976773168 512-byte
> hardware sectors (500108 MB)
> Oct  2 11:10:37 localhost kernel: sd 3:0:0:0: [sdc] Write Protect is off
> Oct  2 11:10:37 localhost kernel: sd 3:0:0:0: [sdc] Write cache:
> enabled, read cache: enabled, doesn't support DPO or FUA
> Oct  2 11:10:37 localhost kernel: sd 3:0:0:0: [sdc] 976773168 512-byte
> hardware sectors (500108 MB)
> Oct  2 11:10:37 localhost kernel: sd 3:0:0:0: [sdc] Write Protect is off
> Oct  2 11:10:37 localhost kernel: sd 3:0:0:0: [sdc] Write cache:
> enabled, read cache: enabled, doesn't support DPO or FUA
> Oct  2 11:10:37 localhost kernel:  sdc: sdc1
> Oct  2 11:10:37 localhost kernel: sd 3:0:0:0: [sdc] Attached SCSI disk
> Oct  2 11:10:37 localhost kernel: ACPI: PCI Interrupt 0000:00:1f.1[A] ->
> GSI 16 (level, low) -> IRQ 16
> Oct  2 11:10:37 localhost kernel: scsi4 : ata_piix
> Oct  2 11:10:37 localhost kernel: scsi5 : ata_piix
> Oct  2 11:10:37 localhost kernel: ata5: PATA max UDMA/100 cmd 0x1f0 ctl
> 0x3f6 bmdma 0x70a0 irq 14
> Oct  2 11:10:37 localhost kernel: ata6: PATA max UDMA/100 cmd 0x170 ctl
> 0x376 bmdma 0x70a8 irq 15
> Oct  2 11:10:37 localhost kernel: ata5.00: ATAPI: Optiarc BD ROM
> BC-5500A, 1.86, max MWDMA2
> 
> If I run hwbrowser and look at it, it shows the drive under sdc with the
> correct geometry and such, but without a partition, ie no sdc1 or file
> sizes.
> 
> So it appears to be recognized by the computer on some level.
> 
> However, if I mount it with "mount /dev/sdc1 temp" or "mount
> -text3 /dev/sdc1 temp", the console will hang for a minute or so before
> returning without any errors.  However, the drive is unusable (ls
> returns an empty directory) and /var/logs/messages shows the following:
> 
> Oct  2 11:16:49 localhost kernel: ata4.00: qc timeout (cmd 0xec)
> Oct  2 11:16:49 localhost kernel: ata4.00: failed to IDENTIFY (I/O
> error, err_mask=0x4)
> Oct  2 11:16:49 localhost kernel: ata4.00: revalidation failed
> (errno=-5)
> Oct  2 11:16:49 localhost kernel: ata4: failed to recover some devices,
> retrying in 5 secs
> Oct  2 11:16:54 localhost kernel: ata4: hard resetting link
> Oct  2 11:16:56 localhost kernel: ata4: SATA link up 1.5 Gbps (SStatus
> 113 SControl 0)
> Oct  2 11:17:26 localhost kernel: ata4.00: qc timeout (cmd 0xec)
> Oct  2 11:17:26 localhost kernel: ata4.00: failed to IDENTIFY (I/O
> error, err_mask=0x4)
> Oct  2 11:17:26 localhost kernel: ata4.00: revalidation failed
> (errno=-5)
> Oct  2 11:17:26 localhost kernel: ata4: failed to recover some devices,
> retrying in 5 secs
> Oct  2 11:17:31 localhost kernel: ata4: hard resetting link
> Oct  2 11:17:33 localhost kernel: ata4: SATA link up 1.5 Gbps (SStatus
> 113 SControl 0)
> Oct  2 11:18:03 localhost kernel: ata4.00: qc timeout (cmd 0xec)
> Oct  2 11:18:03 localhost kernel: ata4.00: failed to IDENTIFY (I/O
> error, err_mask=0x4)
> Oct  2 11:18:03 localhost kernel: ata4.00: revalidation failed
> (errno=-5)
> Oct  2 11:18:03 localhost kernel: ata4.00: disabled
> Oct  2 11:18:04 localhost kernel: ata4: hard resetting link
> Oct  2 11:18:06 localhost kernel: ata4: SATA link up 1.5 Gbps (SStatus
> 113 SControl 0)
> Oct  2 11:18:06 localhost kernel: ata4: EH complete
> Oct  2 11:18:06 localhost kernel: sd 3:0:0:0: [sdc] Result:
> hostbyte=DID_BAD_TARGET driverbyte=DRIVER_OK,SUGGEST_OK
> Oct  2 11:18:06 localhost kernel: end_request: I/O error, dev sdc,
> sector 976767935
> Oct  2 11:18:06 localhost kernel: Buffer I/O error on device sdc1,
> logical block 488383936
> Oct  2 11:18:06 localhost kernel: Buffer I/O error on device sdc1,
> logical block 488383937
> Oct  2 11:18:06 localhost kernel: Buffer I/O error on device sdc1,
> logical block 488383938
> Oct  2 11:18:06 localhost kernel: Buffer I/O error on device sdc1,
> logical block 488383939
> Oct  2 11:18:06 localhost kernel: sd 3:0:0:0: [sdc] Result:
> hostbyte=DID_BAD_TARGET driverbyte=DRIVER_OK,SUGGEST_OK
> Oct  2 11:18:06 localhost kernel: end_request: I/O error, dev sdc,
> sector 976767935
> Oct  2 11:18:06 localhost kernel: Buffer I/O error on device sdc1,
> logical block 488383936
> Oct  2 11:18:06 localhost kernel: sd 3:0:0:0: [sdc] Result:
> hostbyte=DID_BAD_TARGET driverbyte=DRIVER_OK,SUGGEST_OK
> Oct  2 11:18:06 localhost kernel: end_request: I/O error, dev sdc,
> sector 976767937
> Oct  2 11:18:06 localhost kernel: Buffer I/O error on device sdc1,
> logical block 488383937
> Oct  2 11:18:06 localhost kernel: Buffer I/O error on device sdc1,
> logical block 488383938
> Oct  2 11:18:06 localhost kernel: Buffer I/O error on device sdc1,
> logical block 488383939
> Oct  2 11:18:06 localhost kernel: sd 3:0:0:0: [sdc] Result:
> hostbyte=DID_BAD_TARGET driverbyte=DRIVER_OK,SUGGEST_OK
> Oct  2 11:18:06 localhost kernel: end_request: I/O error, dev sdc,
> sector 63
> Oct  2 11:18:06 localhost kernel: Buffer I/O error on device sdc1,
> logical block 0
> Oct  2 11:18:06 localhost kernel: sd 3:0:0:0: [sdc] Result:
> hostbyte=DID_BAD_TARGET driverbyte=DRIVER_OK,SUGGEST_OK
> Oct  2 11:18:06 localhost kernel: end_request: I/O error, dev sdc,
> sector 65
> Oct  2 11:18:06 localhost kernel: Buffer I/O error on device sdc1,
> logical block 1
> Oct  2 11:18:06 localhost kernel: sd 3:0:0:0: [sdc] Result:
> hostbyte=DID_BAD_TARGET driverbyte=DRIVER_OK,SUGGEST_OK
> Oct  2 11:18:06 localhost kernel: end_request: I/O error, dev sdc,
> sector 63
> Oct  2 11:18:06 localhost kernel: sd 3:0:0:0: [sdc] Result:
> hostbyte=DID_BAD_TARGET driverbyte=DRIVER_OK,SUGGEST_OK
> Oct  2 11:18:06 localhost kernel: end_request: I/O error, dev sdc,
> sector 65
> Oct  2 11:18:06 localhost kernel: sd 3:0:0:0: [sdc] Result:
> hostbyte=DID_BAD_TARGET driverbyte=DRIVER_OK,SUGGEST_OK
> Oct  2 11:18:06 localhost kernel: end_request: I/O error, dev sdc,
> sector 65
> Oct  2 11:18:06 localhost kernel: hfs: unable to find HFS+ superblock
> Oct  2 11:23:03 localhost kernel: sd 3:0:0:0: [sdc] Result:
> hostbyte=DID_BAD_TARGET driverbyte=DRIVER_OK,SUGGEST_OK
> Oct  2 11:23:03 localhost kernel: end_request: I/O error, dev sdc,
> sector 65
> Oct  2 11:23:03 localhost kernel: EXT3-fs: unable to read superblock
> 
> One thing that sticks out for me in all this is the SATA data rate.
> Both the computer and the drive are supposed to be 3.0Gb/s devices.  Yet
> the driver wants to connect at 1.5 Gbps.
> 
> The Serial ATA Controller is listed as ahci in hwbrowser.
> 
> # /sbin/lsmod | grep sat
> sata_sil24             16069  0
> libata                131937  3 ata_piix,sata_sil24,ahci
> 
> 
> How should I proceed to get my external drive working ?
----
what do you get when you (as root) do

fdisk -l /dev/sdc

I have no knowledge that eSATA is a hot-plug technology as the only
experience I have had with eSATA was with an Explorer 8300HD cable box
and that clearly wasn't hot plug but required a full power off to
connect or disconnect.

Craig

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