[clug] Hardware Assisted RAID (RAID through BIOS/Chipset RAID)
pbarker at barker.dropbear.id.au
Wed Oct 10 02:45:21 MDT 2012
On Wed, 10 Oct 2012, steve jenkin wrote:
> Much more succinct than my reply, too.
> I missed the obvious Andrew has pointed out:
> you need a recovery system when the BIOS is fried.
> In 3-4 years, will you be able to get a motherboard with that chipset?
> If not, All Your Data Are Belong to... Nobody. It's just rust.
Well... not quite. There's a man-page for that:
dmraid discovers block and software RAID devices (eg, ATARAID) by using
multiple different metadata format handlers which support various formats
(eg, Highpoint 37x series
"dmraid -l" lists all supported metadata formats with their names along
with some descriptive information, eg:
hpt37x : (+) Highpoint HPT37X
hpt45x : (+) Highpoint HPT45X
isw : (+) Intel Software RAID
lsi : (0) LSI Logic MegaRAID
pdc : (+) Promise FastTrack
sil : (+) Silicon Image(tm) Medley(tm)
dos : (+) DOS partitions on SW RAIDs
(0): Discover, (+): Discover+Activate
That being said, I would suggest Linux software RAID in most
I'm happy - I've just eliminated a hardware RAID device which
under-performed all its life, and was a sore-thumb in terms of
> Andrew Janke wrote on 10/10/12 3:17 PM:
>> Hi David,
>> On 10 October 2012 13:42, David Pisk <ykds4795 at tpg.com.au> wrote:
>>> I have done some research, and it
>>> appears that BIOS RAID is superior to operating system RAID.
>> Can't say I agree. If anything the opposite. Certainly SW linux raid
>> is faster (on any reasonable hardware setup) than any "BIOS raid" I
>> have seen. The major advantage of SW raid is that when your BIOS raid
>> dies you are stuffed unless you can find the same motherboard or a
>> compatible version.
>> With SW raid, any linux machine will do for recovery.
> Steve Jenkin, Info Tech, Systems and Design Specialist.
> 0412 786 915 (+61 412 786 915)
> PO Box 48, Kippax ACT 2615, AUSTRALIA
> sjenkin at canb.auug.org.au http://members.tip.net.au/~sjenkin
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Peter Barker | Programmer,Sysadmin,Geek.
pbarker at barker.dropbear.id.au | You need a bigger hammer.
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