Marty Richards was once rumoured to have said:
> Hi All,
>
> Is it just me or does the configuration of Raid 1 on Linux really suck?
Pre2.4, yes - yes it does.
MD/RAID got cleaned up a lot in 2.4, but even then, its still not
perfect. Oh, and I think devfs potentially breaks new-style raid too.
> Its a real pain to configure, and I dread the day I have to fix it after it
> breaks.
raidhotadd, raidhotremove. not that hard.
> I haven't benchmarked it yet but I have a gut feeling that performance is
> not going to be anything to write home about...
software raid0 is *fast*. raid1 & 5 give acceptible performance.
The *real* problem is a general problem with RAID on Linux in general.
[Hopefully somebody is listening to this thread]
Current bad things:
* Software and Hardware RAID have no unified management interface.
* Minimal [read: non existant] SCSI hotswap interface support.
[How do I ask the controller to spin down a disk? Hrm?]
* Software Raid in 2.4 marks disk major and minors into the superblock.
This is wrong. Sorry guys, but for a while drive raid1, I should be
able to swap disks 0 and 1 whilst the machine is off, reboot, and
have it work.
These are my main two points of peave anyway. Hopefully this will all
get addressed sometime in the future.
C.
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