Kelly Byrd <kbyrd-linuxraid@xxxxxxxxxx> writes:
> On Thu, 11 Oct 2007 11:38:04 -0400, Bill Davidsen <davidsen@xxxxxxx> wrote:
>> Kelly Byrd wrote:
>>> I've currently got a pair of identical drives in a RAID1 set for
>>> my data partition. I'll be getting a pair of bigger drives in a
>>> bit, and I was wondering if I could RAID1 those (of course) and
>>> then RAID0 the two differently sized mds. Even better, will RAID10
>>> let me do this?
>>>
>>
>> RAID-10 will let you do this, read past threads of this list for
>> discussion of using the "far" option to gain performance.
It will? I don't mean that it will do a raid10 the size of the smaller
disk.
Does raid10 do a 4 disk raid the size of the smaller disks followed by
2 disk raid for the remaining space?
>>> I don't need to grow the current RAID1 into this new beast, I've
>>> got a place I can copy the existing data so I can start from
>>> scratch.
>>>
>
> Doesn't the 'far' option trade write performance to gain read
> performance? This is a desktop, not at all a "mostly read" type
> workload.
My tests with large files show no degradation in write and nearly
double speed on read. But that might differ for you.
MfG
Goswin
-
To unsubscribe from this list: send the line "unsubscribe linux-raid" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at http://vger.kernel.org/majordomo-info.html
