Niall O Broin wrote:
> On 18 Jan 2009, at 07:03, paul at clubi.ie wrote:
>>> On Sun, 18 Jan 2009, Niall O Broin wrote:
>>>>> ALL RAID is software - it's just a question of where the software
>>> runs (and I include XOR engines here - still software, really, just
>>> very specialised software, runing on very specialised hardware)
>>>>>> Hmm, not that specialised. The Mylex ones were small embedded
>> computers (i960 and then XScale) - using normal SIMMs/DIMMs even.
>> Never seen any PERC cards, but no doubt similar thing
>>> Read what I said Paul. The processors on 'hardware' RAID cards are many
> and various - I've even seen x86 variants used IIRC. However, I
> referred to the dedicated XOR hardware included on some cards to
> offload these calculations from the card's CPU - the only thing which
> coudl reasonably be called hardware RAID, as it wasn't software
> executing on a general purpose CPU - though I'd still argue that as
> it's executing an algorithm, it's software.
A hardware design colleague let me in on a secret, it's all software. I
use C, he uses VHDL, but it's all compiled text files :)
Maintained by the ILUG website team. The aim of Linux.ie is to
support and help commercial and private users of Linux in Ireland. You can
display ILUG news in your own webpages, read backend
information to find out how. Networking services kindly provided by HEAnet, server kindly donated by
Dell. Linux is a trademark of Linus Torvalds,
used with permission. No penguins were harmed in the production or maintenance
of this highly praised website. Looking for the
Indian Linux Users' Group? Try here. If you've read all this and aren't a lawyer: you should be!
