2 and more discs include ssd

[mlebeda]

Hello,
I want to ask if OPSI can recognize SSD drive, preferably a priority to set the system partition on it. So far, it occurred to me only in the "setup.py" sort array of disks: getHarddisks disks = () to put the SSD in the first place, the rest of the disk behind it. But I fear that if I modify the file, after furter OPSI updating I lose my edits which could be a big problem.
Any suggestions what is the best way to solve this?

Regards
Martin Lebeda

[d.oertel]

Hi,

without looking at the code i supose that 'disks' have out of the box no information if a disk is SSD or not.
So I think the first thing we need is a command line command which tells us this disk is a SSD or not.
If there is such a command and is part of our bootimage it would be not too much work.
If not we need at first a new bootimage (with this command) and perhaps an extension of the disk structure in the opsi python library.

regards
d.oertel

[mlebeda]

Hello,
in links to diff files (patches) that should be enough to prioritize SSD drive are here:
http://dior.ics.muni.cz/~mlebeda/Posix.py.diff
http://dior.ics.muni.cz/~mlebeda/setup.py.diff

Unfortunately, we were not able to integrate file Posix.py into miniroot.bz2 because a known bug:

Code: Alles auswählen

RAMDISK: incomplete write (-28! = 4096)
Compressed file ends unexpectedly

Please sent me guide how to make your own miniroot for later testing, so that the kernel not report errors mentioned above. The parameter ramdisk_size did not help.

p.s.:
Do you want to do script for SSD installation TRIM erase? First write is much faster.

Regards
Martin Lebeda

[n.wenselowski]

Hello Mr. Lebeda,

thank you for your suggestions and patches.
I opened tickets in our internal bugtracker so that preferred usage of an SSD may become a feature in future versions.


Kind regards

Niko Wenselowski

[mlebeda]

Hello,
any news on the SSD (choose first with installation) and the possibility not to delete the data partition after reinstallation netboot OS? This functionality is essential for us.If it's in a test could you post link with .opsi package. I can help with testing.

Regards
Martin Lebeda

[n.wenselowski]

Hello mlebeda,

unfortunately we we're not yet able to include this into one of our products.

We will come back to you when we have a package for that.


Kind regards

N. Wenselowski

[n.wenselowski]

Hello mlebeda,

just wanted to let you know the rotational attribute on the Harddisk class will be implemented in python-opsi 4.0.4.2.
Any bootimage build with that version will include that feature.


Kind regards

N. Wenselowski

[mlebeda]

Hello N. Wenselowski,
thank you very much for the information. I appreciate your efforts.


Regards
Martin Lebeda

[mlebeda]

Hello,
updated to testing python-opsi_4.0.4.2-1_all.deb and opsi-linux-bootimage_20131121-1_all.deb and still nio rotational check. Just want to ask, if are there some problems with code and want any help?


Regards
Martin Lebeda

[n.wenselowski]

Hello Martin,

I am not sure if python-opsi 4.0.4.2 is yet included in that version of the opsi-linux-bootimage.
Because of this bug in opsi-linux-bootimage 20131121-1 we are currently preparing another release of the bootimage. My check with current development version indicates that this includes python-opsi in 4.0.4.2 with the rotational attribute at the Harddisk.


Kind regards

Niko