El Viernes, 7 de Marzo de 2008, Jose Alberto Reguero escribió:
> El Viernes, 7 de Marzo de 2008, Jose Alberto Reguero escribió:
> > El Jueves, 6 de Marzo de 2008, Tejun Heo escribió:
> > > Jose Alberto Reguero wrote:
> > > > When I try to make a ext3 fs in the disk I got a lot of erros:
> > >
> > > Can you please try 2.6.25-rc4 and see whether it behaves any
> > > differently. The initial errors should be about the same but EH should
> > > slow the PHY to 1.5Gbps quickly and that seems to solve many PHY
> > > related problems on eSATA connectors.
> > >
> > > Thanks.
> >
> > I try with kernel 2.6.25-rc4 but when the limiting speed to 1.5g the
> > device can't recover.
> > I try whith the option:
> > options libata force=4:1.5g
> > and works, but the speed is limited until:
> > ata4.00: limiting speed to UDMA/33:PIO4
> > and still have some errors.
> >
> > Do you know what Transfer mode I must try in libata force to not have
> > erros?
> >
> > Thanks.
> >
> > Jose Alberto
>
> [root@jar Pls]# hdparm -I /dev/sdd
>
> /dev/sdd:
>
> ATA device, with non-removable media
> Model Number: Seagate FreeAgent Pro
> Serial Number: 5QD3Q2AZ
> Firmware Revision: 3.AFM
> Standards:
> Used: ATA/ATAPI-6 T13 1410D revision 1
> Supported: 6 5 4
> Configuration:
> Logical max current
> cylinders 16383 0
> heads 16 0
> sectors/track 63 0
> --
> LBA user addressable sectors: 268435455
> LBA48 user addressable sectors: 1465149168
> device size with M = 1024*1024: 715404 MBytes
> device size with M = 1000*1000: 750156 MBytes (750 GB)
> Capabilities:
> LBA, IORDY(cannot be disabled)
> Standby timer values: spec'd by Vendor, with device specific
> minimum R/W multiple sector transfer: Max = 1 Current = 0
> DMA: mdma0 mdma1 mdma2 udma0 udma1 udma2 udma3 udma4 udma5 *udma6
> Cycle time: min=120ns recommended=120ns
> PIO: pio0 pio1 pio2 pio3 pio4
> Cycle time: no flow control=120ns IORDY flow control=120ns
> Commands/features:
> Enabled Supported:
> * SMART feature set
> * Power Management feature set
> * Write cache
> * 48-bit Address feature set
> * Mandatory FLUSH_CACHE
> * FLUSH_CACHE_EXT
> * SMART self-test
> * WRITE_{DMA|MULTIPLE}_FUA_EXT
> * SATA-I signaling speed (1.5Gb/s)
> * SATA-II signaling speed (3.0Gb/s)
> Integrity word not set (found 0x0000, expected 0x23a5)
>
> I noticed that :
> R/W multiple sector transfer: Max = 1 Current = 0
>
> It is important?
>
> Jose Alberto
>
I did more tests. I put:
options libata force=4:1.5g,udma0
and the ICRC errors still appear. But only writing. I try with the device at
top speed(3G) and reading the errors don't appear.
Another thing is that when limiting the speed to 1.5G, the real read speed
don't seem to change and is about 2 times the read speed that I have with a
SATA-I device. Is like limiting the speed to 1.5G don't do nothing.
I will try the disk in a SATA-I port.
Thanks.
Jose Alberto
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