On 31/05/2013 08:30, Roman Mamedov wrote:
On Thu, 30 May 2013 22:23:59 +0100
Dominic Raferd <dominic@xxxxxxxxxxxxxxx> wrote:
I am wanting to (re)set up my raid1 array with 1 SSD partition
(/dev/sda2) and 1 'rust' drive partition (/dev/sdb1) , both 240GB. SSD
Sorry but what is "Rust drive partition"? At first I thought it's some
software layer like 'bcache' or some other non-regular block device. Then I
think I got it, but can you please leave at home your own petty cutesy
terminology when asking a serious question on a serious mailing list?
Sorry no offence intended! I just mean a conventional spinning platter
hard disk drive.
And yes I use a HDD+SSD RAID1 for a very long time, to get some improvement
(though debatable how much) you can also mark the HDD as "write-mostly"
(see man md).
This is my idea too (see my OP), but I am concerned about optimisation
(--write-behind, --bitmap and --bitmap-chunk settings) especially for
writes.
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