Re: SSD - TRIM command

[Roberto Spadim <roberto@spadim.com.br>]

tape drive = harddisk with only one head, the head can't move, only
the tape (disk/plate or any other name you want)

could we get back and answer the main question?
--------------------------
getting back to the first question, can MD support trim? yes/no/not
now/some levels and layouts only?


2011/2/21 Guy Watkins <linux-raid@watkins-home.com>:
> } -----Original Message-----
> } From: linux-raid-owner@vger.kernel.org [mailto:linux-raid-
> } owner@vger.kernel.org] On Behalf Of Mikael Abrahamsson
> } Sent: Monday, February 21, 2011 9:02 PM
> } To: linux-raid@vger.kernel.org
> } Subject: Re: SSD - TRIM command
> }
> } On Mon, 21 Feb 2011, Roberto Spadim wrote:
> }
> } > it can be used for badblock reallocation if harddisk have it a harddisk
> } > is near to NOR ssd with variable accesstime, if head is near sector to
> } > be read/write accesstime is small, if sector is far from head, access
> } > time increase (normaly <=1 disk revolution if head control system is
> } > good, for 7200rpm 1revolution is near to 8.33ms)
> }
> } Could we please stop this discussion. If you think HDDs should have this
> } kind of bad sector reallocation scheme, please go to the HDD manufacturers
> } and lobby to them. It is not on-topic for linux-raid ml.
> }
> } --
> } Mikael Abrahamsson    email: swmike@swm.pp.se
>
> What about tape drives?  :)
>
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-- 
Roberto Spadim
Spadim Technology / SPAEmpresarial
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