> - ext3 has for a long time had developer code which allows the target device
> to be turned read-only at the disk device driver level a certain number
> of jiffies after the fs was mounted. This is to allow scripted testing
> of crash recovery. This facility has been extended to support two devices;
> one for the filesystem and one for the external journal device.
Would this facility also be able to deal with parts of a device becoming
read-only unexpectedly? Some of the disks I have in RAIDs have the
nice habit of disabling write access when overheating. That's an
interesting failure scenario in a RAID system.
Ralf
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