Hardware RAID?

M

mafet2011-03-27 13:01:38

Sun Microsystems

mafet, 2011-03-27 13:01:38

Hardware RAID?

I’m choosing a hardware raid controller compatible with Vmware ESX for my Sunfire X2200 M2 and I don’t understand how to distinguish a hardware raid controller from a software raid controller, what is the difference between hba and megaraid (at least in the lsi terminal)?
My final task is this. I have two disks and need ESX (and any other OS) to see them as one disk in raid1 and not have access to the real disks.

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5 answer(s)

A

amc, 2011-03-27
@amc

www.adaptec.com/en-us/products/controllers/hardware/sas/entry/sas-2405/

P

phasma, 2011-03-27
@phasma

communities.vmware.com/cshwsw.jspa
hba - just extends the ability to connect devices, sometimes has the ability to create raids. It is better to take a full-fledged raid controller with BBU.

M

michs, 2011-03-27
@michs

HBA is a Host Bus Adapter, i.e. actually an adapter from different tires. For example SAS-PCI-E. Usually does not have RAID, but software in drivers can do it.
Distinguishing hardware from software is easy. The hardware has a special XOR processor on board. Its frequency can be found in the charts. Well, secondary signs of a hardware controller are the presence of cache memory and the ability to install BBU or flash cache.

T

track, 2011-03-29
@track

Don't torture your brain. Just take the compatibility chart published by VMware and buy what is listed there.

A

amc, 2011-03-29
@amc

www.vmware.com/resources/compatibility/search.php?action=search&deviceCategory=io&productId=1&advancedORbasic=advanced&maxDisplayRows=500&key=&release%5B%5D=148&release%5B%5D=24&release%5B%5D=74&release%5B%5D= 34&release%5B%5D=13&datePosted=-1&partnerId%5B%5D=-1&ioTypeId%5B%5D=4&manufacturer%5B%5D=-1&vid=&did=&svid=&ssid=&rorre=0
Take your pick .