Re: Read algorithm-raid1/raid10

[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]

 



like this patch (a long time ago)
http://www.spinics.net/lists/raid/msg30003.html


2011/1/18 Roberto Spadim <roberto@xxxxxxxxxxxxx>:
> hi guys, could we implement a load_balance read algorithm for SSD?
> nearest head isn't as fast as round robin for ssd.
> i'm talking about raid1 (raid10 too)
> what's my problem?
> as i can see, raid0 is faster than raid1
> for example:
> two disks raid0 is faster than
> two disks raid1.
>
> why?
> nearest head
> instead of a balanced read algorithm (like raid0) the nearest head
> make raid1 use only one disk for searchs where we could use two disks
> (like raid0)
>
> could we implement a round robin for ssd? and make raid1 as fast as
> raid0 for ssd?
> i didn't tested the raid10 algorithm yet.
> thanks a lot.
>
> --
> Roberto Spadim
> Spadim Technology / SPAEmpresarial
>



-- 
Roberto Spadim
Spadim Technology / SPAEmpresarial
--
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


[Index of Archives]     [Linux RAID Wiki]     [ATA RAID]     [Linux SCSI Target Infrastructure]     [Linux Block]     [Linux IDE]     [Linux SCSI]     [Linux Hams]     [Device Mapper]     [Device Mapper Cryptographics]     [Kernel]     [Linux Admin]     [Linux Net]     [GFS]     [RPM]     [git]     [Yosemite Forum]


  Powered by Linux