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From: L A Walsh <lkml@tlinx.org>
To: "Dr. David Alan Gilbert" <dave@treblig.org>
Cc: util-linux@vger.kernel.org
Subject: Re: does util-linux have a 'report sector size' util?
Date: Mon, 11 Mar 2019 14:34:46 -0700	[thread overview]
Message-ID: <5C86D476.6060807@tlinx.org> (raw)
In-Reply-To: <20190311212104.edekhgctqto37tn7@gallifrey>

On 3/11/2019 2:21 PM, Dr. David Alan Gilbert wrote:
> * L A Walsh (lkml@tlinx.org) wrote:
>> Trying to track down why my 4K drives no longer display 4K
>> in sysfs (/sys) and don't seem to show individual disk
>> drive information.  When I first got the drives, linux displayed
>> the correct physical disk size, but when I look now, I only
>> see 512.
>
> Is this one of the PHY-SEC or LOG-SEC fields that lsblk can print?
>
> [dg@major ~]$ lsblk -o "NAME,PHY-SEC,LOG-SEC"
> NAME                                            PHY-SEC LOG-SEC
> sda                                                 512     512
---
    It would be, if it was correct.  Megacli displays:

   Sector Size:  512
   Logical Sector Size:  512
   Physical Sector Size:  4096

But lsblk displays 512 for everything.  The disk says it uses a 512e format
with the 'e' meaning it emulates 512 even if not 512.

---
I'm also seeing the linkspeed, NCQ setting, drive temperature and
Manufacturers serial number -- all things I would expect out of the
kernel.  I thought I remembered seeing temps displayed in linux as
well.  Hmmmm.

Thanks for the pointer & response!

>
> Dave
>




  reply	other threads:[~2019-03-11 21:34 UTC|newest]

Thread overview: 7+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2019-03-11 20:57 does util-linux have a 'report sector size' util? L A Walsh
2019-03-11 21:21 ` Dr. David Alan Gilbert
2019-03-11 21:34   ` L A Walsh [this message]
2019-03-12  8:21     ` Karel Zak
2019-03-12 15:02       ` L A Walsh
2019-03-12 18:11         ` Dr. David Alan Gilbert
2019-03-15 14:05           ` Re:why would 4k size for phys sector size read in kernel, go away? L A Walsh

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