Bugzilla – Bug 134550
lsraid critical bug (raidtools)
Last modified: 2006-01-24 11:33:50 UTC
lsraid's -R option has a seemingly minor, but indeed very critical bug: It does not generate complete information, i.e. it does never output the "parity-algorithm" entry, even if this was changed from the default. If the algorithm employed is, say, "left-symmetric", this leads to total corruption of the array if lsraid's output was used as input to "raidreconf" from the same package. Since "parity-algorithm" has influence on the placement of ECC chunks, raidreconf uses the default algorithm of "right-symmetric" in absence of a specified parity algorithm and thus overwrites real data chunks instead of ECC chunks while redistributing the chunks.
can you try to use "mdadm" instead of "raidtools". raidtools is an obsolete and completely unmaintaned interface.
I can, but to my knowledge, mdadm does not even support shrinking or enlarging a RAID array. It also does not use (nor generate) raidtabs, something which is needed by raidreconf. Also, that tool (raidtools) is outdated as well and does not support newer features like RAID-6, but there is no replacement whatsoever, maybe you chose to included those tools because of these reasons in the first place. What good is including packages that are not supported but can heavily damage your system because of such bugs?
- resizing is possible with mdadm, look for "grow" in the manpage - raidreconf is the tool from raidtools (of course it uses the old config file), all operations for mdadm are done with /sbin/mdadm in other words: mdadm is a complete replacement by now and the raidtools package will be dropped from future releases.
Mea culpa. You are correct. Seems like I have looked at an outdated version of mdadm. If raidtools is dropped, then all will be fine.
Steffen: please remove raidtools left-overs from inst-sys so I can finally drop the package (all other dependencies have been fixed).
will be gone with next package check-in
package "raidtools" has been dropped.