On 2011-02-16 19.04, Stuart Henderson wrote:
> On 2011/02/16 12:34, Steven R. Gerber wrote:
>> Now, I have an EXPERIMENTAL RAID 5 volume. Not the worst.
>> ***
>> sd9 at scsibus4 targ 0 lun 0: <OPENBSD, SR RAID 5, 004> SCSI2 0/direct fixed
>> sd9: 5723178MB, 512 bytes/sec, 11721070081 sec total
>> ***
>> But, EXPERIMENTAL RAID 5 is dangerous (Marco Peereboom).
>> OpenBSD softraid fully supports only RAID 0 (stripe) and RAID 1
>> (mirror). RAID 0 provides NO redundancy (not really RAID). RAID 1 is a
>> waste beyond 2 disks.
>> I want/need to use 4 (or more) disks.
>> A real RAID (array) requires RAID 0+1 or RAID 1+0 or RAID 5 ...
>
> Or two RAID 1 arrays?
>
> If at this point in time you want RAID 0+1 or RAID 5 on OpenBSD
> in any kind of supported way, get a RAID card.
>
>> A custom kernel with RAIDframe is starting to look good.
>
> It really is not.
I've run RAIDframe for years and years, and it has its little quirks,
particularly with very large disks/raid sets, but overall it does its
job well enough.
Sure, it isn't officially supported, but then again, neither is any
other non-hardware solution.
In my opinion it is still definitely a workable solution for lack of
something better and more modern.
Regards,
/Benny
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