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Can anyone tell us more about ESLIP mode ?

September 17th, 2013, 8:17

ESLIP mode, in Terminal on Seagate drives (only on F3 drives?)

^T puts in ESLIP mode (incl when already in ^R online mode)

The subject of ESLIP has come up a few time recently
eg

viewtopic.php?f=1&t=26068&p=184088&hilit=eslip#p184088

which seems to indicate it will record something if bad sectors are encountered

I've tried enabling it
but nothing extra seemed to be recorded

The sata data connection appears to read sectors ok (up till a bad one)
BUT was not reading the user data from the sector
(the data returned was either that from sector 0 or the last set of data that was in the buffer before eslip mode was enabled)


So anyone care to explain ESLIP mode and how to make use of it

Thanks in advance

Re: Can anyone tell us more about ESLIP mode ?

September 18th, 2013, 9:43

In this mode, the drive will respond only to ESLIP encoded packets received over the serial port interface. The ASCII diagnostic commands are not available in this mode. In this mode, the native interface (SATA, SCSI, SAS, FC) is alive. This is the default power on mode for the serial port interface unless drive supports Power-savings at power on (aka "APM ASAP").

Re: Can anyone tell us more about ESLIP mode ?

September 18th, 2013, 10:32

In other words ESLIP is of no use to you unless you know the comms protocol.

Re: Can anyone tell us more about ESLIP mode ?

September 18th, 2013, 14:26

Thanks

Might also explain why it can be so hard to enter an initial ctrl-Z sometimes
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