* SATA hotplug device renaming and dmraid...
@ 2008-05-20 18:11 Paul Rolland
0 siblings, 0 replies; only message in thread
From: Paul Rolland @ 2008-05-20 18:11 UTC (permalink / raw)
To: Linux Kernel; +Cc: rol
Hello,
I'm using a machine that supports SATA hotplug and with and Intel ESB2
(Fake)Raid controller.
I've configured a raid1 (mirror) array using dmraid, that is made of
/dev/sda and /dev/sdb, and seen by the OS as /dev/mapper/isw_xxxxxxx_RAID1
My problem is that when I unplug and replug a disk, it is assigned a
new name (/dev/sdc first time as this is the first name available), and
so it is no more considered as being part of the RAID array.
Is this an expected behavior ? Is there a way (using dmraid/dmsetup) to
instruct kernel of the changes ?
It seems that udev can get events from device-mapper, from
Documentations/device-mapper/dm-xxxx.txt, but I don't really see how to use
this to notify of a disk change in the array...
Regards,
Paul
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