motherboard with raid controller

[Christos Ricudis]

On Fri, 13 Jun 2003 11:11:15 +0300
"Giannis Stoilis" <giannis at stoilis.gr> wrote:

> Raid 0 exw paiksei mono me Promise kai Highpoint se ATA diskous.Ena bad
> block se ena disko, kai gamh8hke sxedon oloklhro to array se mia periptwsh

Agorazoume kwlohardware kai meta paraponiomaste :> 

Sobaroi ATA RAID controllers yparxoun dyo (oson afora to Linux) : Adaptec kai 
3Ware. Gia tous 3Ware mono kala logia akouw, kai exoun kati gamata 
montelakia me pietes, mprateles, laimokopsh, ktl ktl. Kapoia stigmh 8a parw 
enan. Oi Adaptec ATA RAID den kserw an yposthrizontai sto Linux. 

Oson afora SCSI raid, yparxoun oi ekshs epiloges: Mylex, mylex, kai mylex. A, 
opws epishs kai mylex. 

Sidenote : 

Prox8es eftiaksa to kainoyrgio mou PC sto spiti, ena AMD200XP+. Ws twra eixa duo 
IBM IDE diskous karfwmenous panw se IDE-to-SCSI bridges ths acard 
(www.acard.com.tw. Tous synistw anepifylakta. Agoraste tous, kai peite tous oti 
sas esteila egw mpas kai glyka8oun kai mou steiloun merikous akoma tzampa). Ola
ayta katelhgan se ena Adaptec 2940UW. Twra ebgala ta bridges kai ebala tous diskous
panw sto IDE bus tou board. 

Den ekana pote kanena sobaro benchmark, alla exw thn ais8hsh oti PARA to 
performance degradation pou eixa se bulk data transfers logw tou bridge, to genikotero
performance tou systhmatos htan kalytero (apo pleyras CPU load ktl). Isws tous ksanabalw. 

Apo thn allh pleyra mporei aplws to performance improvement na ofeilotan sto placebo effect... 

-- 
Christos Ricudis				ricudis at itc.auth.gr
Systems Administrator				+30-2310-998305
IT Support Center
Aristotles University of Thessaloniki, GREECE