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Documentation about the Vampire hardware

Can the Workbench Boot From Ssd In the V4 Sa ?

Alessandro Ambrosini

Posts 3
01 Nov 2019 20:33


Hi,

Can the workbench start booting from a SSD in the V4 sa ?

How can be installed a SSD in the V4 SA ?


Andrew Miller

Posts 205
01 Nov 2019 21:47


If it can be connected through an ide interface it should be possible. I'm sure there are a few ide to sata interfaces available.
If you mean micro sd, then not at the moment but they are working on it.


Haydar YÜKSEL

Posts 13
02 Nov 2019 08:02


Andrew Miller wrote:

If it can be connected through an ide interface it should be possible. I'm sure there are a few ide to sata interfaces available.
  If you mean micro sd, then not at the moment but they are working on it.

Yes. True adapter And SSD.
EXTERNAL LINK 
Model AS331 V1.3, Others models not working Amiga. Western Digital SSD not working.


Herbert Markart

Posts 26
04 Nov 2019 12:10


Hmmm… I wonder….
Do these Adapters sometimes trigger the TRIM of SSD's?
If not, this would cause huge problems as the SSD's would just get full over time as AmigaOS, as far as I know, has no support to start TRIM.
For those who do not know but want to know what I am talking about:
EXTERNAL LINK 


Adam Whittaker

Posts 261
04 Nov 2019 12:51


isnt TRIM handled by the SSD firmware these days?


Vojin Vidanovic

Posts 1430
04 Nov 2019 14:19


Herbert Markart wrote:

  Do these Adapters sometimes trigger the TRIM of SSD's?
  If not, this would cause huge problems as the SSD's would just get full over time as AmigaOS, as far as I know, has no support to start TRIM.

Modern SSDs have trim, used one with OS4, no huge problems.


Gunnar von Boehn
(Apollo Team Member)
Posts 4193
04 Nov 2019 15:39


Herbert Markart wrote:

Hmmm… I wonder….
  Do these Adapters sometimes trigger the TRIM of SSD's?
  If not, this would cause huge problems as the SSD's would just get full over time as AmigaOS, as far as I know, has no support to start TRIM.
  For those who do not know but want to know what I am talking about:
  EXTERNAL LINK

"Trim" is a command send by the Operating/System, Driver, or Bios or Firmware

The Adapter is just a piece of "wire" it will by itself never send any extra commands.


Herbert Markart

Posts 26
05 Nov 2019 13:30


So.... Does the Vampire support this feature? Maybe in the future as optional setting?
Or has anyone written an program which can be used in the background?


Mike Kopack

Posts 258
05 Nov 2019 13:58


Likely not. 

Trim is more a concern for systems that do a lot of writing small files (looking at you Linux where EVERYTHING is a file operation...). Since AmigaOS doesn’t have virtual memory that won’t be writing a lot, and unless you are churning out a ton of writes through other operations I doubt you’ll have any issues with the wear on cells. If you are using a CF or Sd card (vs a drive form factor SSD) I doubt you will need to worry about it. 


Ronnie Beck
(Apollo Team Member)
Posts 109
05 Nov 2019 15:24


Mike Kopack wrote:

Likely not. 
 
  Trim is more a concern for systems that do a lot of writing small files (looking at you Linux where EVERYTHING is a file operation...)

But not every file in Linux is on a disk.  e.g. /proc

Mike Kopack wrote:

. Since AmigaOS doesn’t have virtual memory that won’t be writing a lot........ 

A common misconception is that Virtual Memory == Swap File.  Two different but related concepts.  It is a swap file/partition which is written to the disk.  Virtual memory is not disk related.  You can see this yourself in windows/linux when adjusting swap settings.  You can disable the swap in Linux and Windows but the memory address space will always be virtualised.  There is no turning that off..............well not short of compiling your own kernel.

The Amiga often uses ram disk for scratch space and this is, well, in ram.  The disk isn't really written too so often, at least not by the OS itself.  I am not really sure that the lack of TRIM will be noticed on the Amiga that much if at all.

I would use an SSD without hesitation.

posts 10