[wellylug] Linux (IDE) software RAID advice, please...

[Wood Brent]

> I believe it will.
> 
> http://www.tldp.org/HOWTO/Software-RAID-HOWTO-1.html#ss1.4
> 
> also implies that it will.  Write performance on RAID-1 can be a little
> so-so (due to the need to write to two disks, and worse if there are 
> limitations on overlapping I/O such as with IDE), but read performance 
> should be better than for a single drive particularly if they're
> arranged so as to maximise the opportunity for overlapped I/O.

Thanks Ewen, the info supercedes what I had, kernel 2.2 RAID1 only read from a
single drive, the new RAID1 with read balancing should approach RAID0 read
performance, but with data redundancy. I will loose some space, but that
shouldn't be a huge deal. 

> 
> There are also some relatively inexpensive hardware RAID cards that are 
> well supported under Linux (3Ware, Adaptec, etc for IDE, plenty of
> choices for SCSI).

Yep. For now I'd like to just do it in software. It should be adequate on two
SATA drives.

Brent