Hello list.
There was a discussion in irc about device filtering. I just wanted to
summarize and post what was discussed so we can maybe get some valuable
insight from the mailing list.
This is more like an irc dump than a summary. But I hope it shows some
of the topics that should/could be discussed
* What information to give to the filter? This is related to the UI.
And this was the reason to begin the discussion.
- Give a regular expression that identifies the devices
- Specify with a checkbox if you want anaconda to use the regular
expression.
- Specify what that regular expression should do (Ignore or Include)
* On what would those regular expressions operate?
- canonicalized path of the device link under /sys/block.
- []$ readlink -f /sys/block/sda/device
/sys/devices/pci0000:00/0000:00:05.0/host0/target0:0:0/0:0:0:0
- /dev/disk/by-path version is also possible. Could be useful.
* Why not have the possibility to refresh? (Refresh would work with
the information contained in the kernel.)
- The user tweaks the scanning list and hits refresh.
- User does this until he/she is satisfied with the device list.
* Three possible scanning stages where identified. Each of these might
be controlled by the filter.
1. Kernel scan
2. udev scan
3. devicetree.py:scan
* We actually want to be able to tell the kernel not to scan certain
LUN's.
* Wish people would learn how to configure fibrechannel switch acl's so we
would only see the lun's they actually want us to touch. Would it
be a good idea to document the configuration setup that anaconda
expects?
* How would udev filters aid us with the overall filtering.
Regards.
--
Joel Andres Granados
Brno, Czech Republic, Red Hat.
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