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Subject: Re: ZFS bug: Creating ZIL ignores vfs.zfs.min_auto_ashift
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From: Borja Marcos <borjam@sarenet.es>
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On Nov 6, 2014, at 2:11 PM, Michael Jung wrote:

> What does smartctl -a /dev/ada1 show?
>=20
> I see other posts via google showing that the SSDSA2CT040G3 has 512 =
byte physical sectors (ashift 9)


Different issue and I just stumbled upon it when testing this.  The =
quirk provided for the SSD 320 drives,

        {
                /*
                 * Intel 320 Series SSDs
                 * 4k optimised & trim only works in 4k requests + 4k =
aligned
                 */
                { T_DIRECT, SIP_MEDIA_FIXED, "*", "INTEL SSDSA2CW*", "*" =
},
                /*quirks*/ADA_Q_4K
        },
        {
                /*
                 * Intel 330 Series SSDs
                 * 4k optimised & trim only works in 4k requests + 4k =
aligned
                 */
                { T_DIRECT, SIP_MEDIA_FIXED, "*", "INTEL SSDSC2CT*", "*" =
},
                /*quirks*/ADA_Q_4K
        },



doesn't match mine, hence they are not properly recognized.

Anyway, as Steve says, it's irrelevant. If I change the min_auto_ashift =
variable to 12 it should set the  ashift to 12
regardless of the quirk detection.

I'll send the updated quirk to -scsi, but that's a different matter.





Borja.