Whats the difference between controller cards that do not support RAID 5 and those that do support it but don't have an hardware XOR processor (besides the obvious difference that one supports RAID 5 and the other doesn't). For example these two don't support RAID 5 while this one does. Couldn't I just get one of the cards that don't support RAID 5 and set up software raid with Windows Server 2003 or FreeNAS. Since the Highpoint isn't a hardware raid card, wouldn't using that card be software raid also? So whats the difference between the two? Oh I'm so confused...
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Controller cards with and without RAID 5
- Thread starter aye29
- Start date
Hello,
I have heard on many occasions that the Windows implementation of software RAID-5 is very poor, i.e. it performs very bad. Given that, I would assume that a 3rd party, driver based software RAID solution is likely faster.
I am not sure whether the Highpoint 2xx0 series does hardware or software RAID.
I have heard on many occasions that the Windows implementation of software RAID-5 is very poor, i.e. it performs very bad. Given that, I would assume that a 3rd party, driver based software RAID solution is likely faster.
I am not sure whether the Highpoint 2xx0 series does hardware or software RAID.
aye29 said:
One supports RAID5 and the other two don't? I'm not sure what else you can go into about that.. other then they didn't bother putting that functionality into the firmware/drivers. The ones that do that don't have the onboard XOR are just going to be offloading it to the CPU and it potentially may perform slower.
aye29 said:
You sure can. I'd be cautious about using FreeNAS for software RAID5 however, gvinum is still kinda buggy in that area. The highpoint description doesn't list any XOR processor, so I'd assume its going to be doing all the RAID5 calculations in software, so I personally would just get one of the cheaper ones and setup the raid in the OS, unless you want to save yourself the hassle and just do it in the card's bios (one with RAID5 support), which should be OS independant (provided it has drivers for said OS).
Someone who can explain in greater detail will probably drop by..
.paradoxblue
Gawd
- Joined
- Jan 4, 2006
- Messages
- 591
im also wondering. as im looking for the easiest way for me to setupp two sata cards each four port and have 8 disks going in two jbod setups.
setup under the card so no matter what pc its in they work as long as teh drivers are isntalled.
setup under the card so no matter what pc its in they work as long as teh drivers are isntalled.
unhappy_mage
[H]ard|DCer of the Month - October 2005
- Joined
- Jun 29, 2004
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- 11,455
Just drivers. The drivers implement a RAID stack inside (with *widely* varying quality!) and talk to the disks singly.aye29 said:
The Highpoint 1800/2200/2300 series has a "XOR processor" onboard, but it's apparently not a full hardware raid. That's awfully confusing, and I haven't seen any low-level docs from Highpoint to know how (or whether
) it's used.Paradoxblue: start a new thread. They're cheap
I want to build a NAS device using FreeNAS but I've heard that RAID 5 support is pretty poor in FreeNAS. Would it then be better to get a RAID card that supports RAID 5 in the drivers such as the Highpoint card rather then just get a SATA controller card and create a RAID array in FreeNAS?