Trim

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Trim

Postby DrTeeth » Fri Jan 25, 2019 6:55 pm

Hi,

I have just installed a new SSD which supports TRIM. When I set the
drive to BIOS (Direct), the selection stays but the TRIM button does
not become available/ungreyed. Is there anything else I need to do?

May I also have a reminder about being able to tell if a partition is
correctly aligned please?
--
Cheers,

DrT

*** The problem with marriage is ***
*** that there's no casting vote!! ***
DrTeeth
 
Posts: 1231
Joined: Fri Aug 12, 2011 11:58 am

Re: Trim

Postby Brian K » Fri Jan 25, 2019 10:15 pm

DrTeeth wrote:

> May I also have a reminder about being able to tell if a partition is
> correctly aligned please?
> --

DrT,

Look at PartInfo gui. Sector size should be 512. Divide the partition Start LBA by 2048. If the result is an integer then the partition is 1MiB aligned.

The TRIM button is greyed out for hard drives. Is your button greyed out for the SSD?
Brian K
 
Posts: 1579
Joined: Thu Aug 11, 2011 6:11 pm
Location: NSW, Australia

Re: Trim

Postby DrTeeth » Sat Jan 26, 2019 6:06 am

On Fri, 25 Jan 2019 21:15:16 PST, just as I was about to take a herb,
Brian K disturbed my reverie and wrote:

>The TRIM button is greyed out for hard drives. Is your button greyed out for the SSD?

Hi Brian,

Yes, the TRIM button is greyed out for my new SSD. I have changed the
access to BIOS Direct as per the manual and it does not revert to
plain BIOS. It is a Samsung SSD and I have set it up to use the
proprietary "rapid" mode, which uses some of the system RAM to
increase performance. I don't know if that would make any
difference...cannot see why it should. the drive does, of course,
support the TRIM command.
--
Cheers,

DrT

** Amateurs built the Ark, but professionals built the Titanic.**
DrTeeth
 
Posts: 1231
Joined: Fri Aug 12, 2011 11:58 am

Re: Trim

Postby Brian K » Sat Jan 26, 2019 6:41 pm

DrT,

Have you tried it without "Rapid"? I gather Rapid improves bench-marking but not much else.

Have you tried TRIM in IFL PartWork?
Brian K
 
Posts: 1579
Joined: Thu Aug 11, 2011 6:11 pm
Location: NSW, Australia

Re: Trim

Postby DrTeeth » Sun Jan 27, 2019 11:59 am

On Sat, 26 Jan 2019 17:41:46 PST, just as I was about to take a herb,
Brian K disturbed my reverie and wrote:

>DrT,
>
>Have you tried it without "Rapid"? I gather Rapid improves bench-marking but not much else.

The TRIM command stays greyed out in BIBM.

>Have you tried TRIM in IFL PartWork?

Works fine.

OT:- If I set up a cron job for TRIM, does it run immediately if the
schedule is missed? I only ask as I may not be in Linux long enough
for it to run.
--
Cheers,

DrT

** Amateurs built the Ark, but professionals built the Titanic.**
DrTeeth
 
Posts: 1231
Joined: Fri Aug 12, 2011 11:58 am

Re: Trim

Postby Brian K » Sun Jan 27, 2019 12:04 pm

DrTeeth wrote:

>
> OT:- If I set up a cron job for TRIM, does it run immediately if the
> schedule is missed? I only ask as I may not be in Linux long enough
> for it to run.
> --

I've no idea.
Brian K
 
Posts: 1579
Joined: Thu Aug 11, 2011 6:11 pm
Location: NSW, Australia

Re: Trim

Postby DrTeeth » Mon Jan 28, 2019 6:35 am

On Sun, 27 Jan 2019 11:04:15 PST, just as I was about to take a herb,
Brian K disturbed my reverie and wrote:

>I've no idea.

Any idea why BIBM's TRIM does not work?
--
Cheers,

DrT

** Amateurs built the Ark, but professionals built the Titanic.**
DrTeeth
 
Posts: 1231
Joined: Fri Aug 12, 2011 11:58 am

Re: Trim

Postby Brian K » Mon Jan 28, 2019 12:19 pm

No, I don't.

The Trim button doesn't work in my BIU either. But Trim works in IFL.
Brian K
 
Posts: 1579
Joined: Thu Aug 11, 2011 6:11 pm
Location: NSW, Australia

Re: Trim

Postby DrTeeth » Tue Feb 05, 2019 10:39 am

On Mon, 28 Jan 2019 11:19:50 PST, just as I was about to take a herb,
Brian K disturbed my reverie and wrote:

>No, I don't.
>
>The Trim button doesn't work in my BIU either. But Trim works in IFL.

Hopefully David can answer or fix the issue.
--
Cheers,

DrT

** Amateurs built the Ark, but professionals built the Titanic.**
DrTeeth
 
Posts: 1231
Joined: Fri Aug 12, 2011 11:58 am


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