-
Xserve 5.6TB RAID and wonder which raid level
I have a new G5 2.7 with the Xserve 5.6TB RAID, I had it set up at the sales shop for me and I thought I wanted raid 3 but it’s showing only 2.2TB on my desktop, it must be some hugh redundent level, 5 0 maybe, I’d have to look it up in my books, anyway, is it impossible to have a software raid3? I’m using the apple duel channel fiber card. which is the best raid level for HDcam 8 bit that offers some sort of protection and still has speed and lots of space for video? Thanks, Keith
-
7 Replies
-
Out the box & left to cook for 36 hours, you should see 2.2TB either side.
This will be RAID5. I’d keep it there, but you can reformat it. It is up to you what level of protection you are happy with and how critical your edit job is. RAID50 if you want to combine both sides.Peter
In Paris editing The French Open for ESPN
-
It only shows one raid on the desktop, is it 4.4TB then, under disk administrator it shows two 2.2TB drives and one 2.2Raid? Raid 5 is fine, but under the raid tab it shows a raid 3, I thought I couldn’t have raid 3 without a raid 3 hardware controller card? thanks, Keith
-
Do this in two steps: First, starting from scratch, create a RAID 5 with one side — “upper” 7 drive units. Then so the same with the “lower” units. Then combine the upper and lower RAID 5’s into a RAID 0. This is RAID 50. It combines the redundnacy protection of RAID 5 on each level, plus the efficiency of RAID 0. Be sure that Journaling is OFF.
steve covello
doublewide post -
You’ve got both sides plugged in via fibrechannel right?
Peter
In Paris editing The French Open for ESPN
-
yes, both sides are plugged in and are up and on, it must already be a raid 50, I just don’t see anywhere I can retrive that info?
-
Hard to say why you are not seeing both sides, maybe a duff sfp, fibre or HBA.
Do you get all the happy lights with the RAID utility?
Peter
In Paris editing The French Open for ESPN
-
Here’s Apple’s doc on the subject. It appears that your fully populated RAID comes from the factory with upper and lower preset to their own RAID so that all you need to do is combine upper and lower into an appropriate RAID config for your needs. I am not the world’s expert on this subject, thought my present Xserve setup has been working without a hitch for about 2 years now. So I guess that counts for something…
https://manuals.info.apple.com/en/FinalCutPro-UncompressedSDEditing.pdf
steve covello
doublewide post
Reply to this Discussion! Login or Sign Up