<br><div class="gmail_quote"><blockquote class="gmail_quote" style="margin: 0pt 0pt 0pt 0.8ex; border-left: 1px solid rgb(204, 204, 204); padding-left: 1ex;"><div class="gmail_quote"><div><div><blockquote class="gmail_quote" style="margin: 0pt 0pt 0pt 0.8ex; border-left: 1px solid rgb(204, 204, 204); padding-left: 1ex;">
That's pretty good; my experience with parity RAID has been with hardware<br>
RAID controllers where the write performance has been truly miserable (a few<br>
10s of MB/s). Yet another example of how the embedded processors used in<br>
most hardware RAID controllers have fallen behind software RAID running on<br>
the main CPU (providing you have a core to spare).<br><br></blockquote><div><br></div></div></div><div>Yes. About 6 years ago the company I work for bought large rack-mounted file servers (16 250G disks). We bought them from a vendor specialized in Linux clusters, whole racks with 1U servers and local file storage. The vendor tested both hardware and software RAID. High-end Adaptec RAID controllers were saturated at 90MB/s, while soft-RAID was going over 130MB/s easily. The reason was insufficient processor power of the RAID controller.<br>
</div></div><div><div></div><div><br></div></div></blockquote></div><br>Very interesting thread has evolved here (at least for me, to learn more about HDs/RAID/etc.).<br><br>I am currently thinking about setting up RAID5 in my desktop. Basically going from an LVM with a few random drives I have -> 4x2TB RAID5 + 1 system disk (trying to get all my stuff on one machine for various household reasons, heh). Should I be getting an external/extra power supply, or a UPS, for this setup? (Box is a Q6600/4gb ram/700w psu).<br>
<br>Thanks<br>Bobby<br>