Low-level format an SATA-drive?

Mikhail T. mi+thun at aldan.algebra.com
Mon Dec 4 01:26:59 UTC 2017


On 03.12.2017 20:19, Warner Losh wrote:
> I say maybe in both cases because it's a crapshoot once drives get bad 
> enough to start throwing bad sectors back to the OS. Modern HDD will 
> remap bad sectors on rewrite

Thanks for the prompt reply. It is a 3Tb Seagate Barracuda. And it is 
not throwing bad sectors, it seems worse:

    ahcich4: Timeout on slot 6 port 0
    ahcich4: is 00000000 cs 00000040 ss 00000000 rs 00000040 tfd d0 serr
    00000000 cmd 0000c617
    ahcich4: AHCI reset: device not ready after 31000ms (tfd = 00000080)
    ahcich4: Timeout on slot 7 port 0
    ahcich4: is 00000000 cs 00000080 ss 00000000 rs 00000080 tfd 80 serr
    00000000 cmd 0000c017
    (aprobe0:ahcich4:0:0:0): ATA_IDENTIFY. ACB: ec 00 00 00 00 40 00 00
    00 00 00 00
    (aprobe0:ahcich4:0:0:0): CAM status: Command timeout
    (aprobe0:ahcich4:0:0:0): Retrying command
    ahcich4: Timeout on slot 13 port 0
    ahcich4: is 00000000 cs 00002000 ss 00000000 rs 00002000 tfd d0 serr
    00000000 cmd 0000cd17
    ahcich4: AHCI reset: device not ready after 31000ms (tfd = 00000080)
    ahcich4: Timeout on slot 14 port 0
    ahcich4: is 00000000 cs 00004000 ss 00000000 rs 00004000 tfd 80 serr
    00000000 cmd 0000c017
    (aprobe0:ahcich4:0:0:0): ATA_IDENTIFY. ACB: ec 00 00 00 00 40 00 00
    00 00 00 00
    (aprobe0:ahcich4:0:0:0): CAM status: Command timeout
    (aprobe0:ahcich4:0:0:0): Retrying command

Yours,

    -mi



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