i've had very good results with that controller (although ensure that the latest firmware is installed since you plan to use raid 6 as they had an issue with possible failure upon spare rebuild not long ago and issued a mandatory update.
if you run x64 os you won't have to do any LUN auto carving. if you run x32 os you should be able to use PVs up to 16TB but i would instead leave auto-carving set to on and use OF to aggregate up the <2TB PVs. it's a safer route to go as the auto-carving feature within the 3ware card is rock solid. the same cannot be said of the rest of the Linux components and utilities that have had relatively small amounts of testing. but then, this is just my opinion. -=dave ----- Original Message ----- From: Brad Dormanen To: Aaron Stranberg Cc: [email protected] Sent: Friday, July 20, 2007 12:32 PM Subject: RE: [OF-users] System spec and OF research - 3ware 9650e tyan 289216500GB sata drives - 2GB memory My understanding is that Openfiler can take all of your storage. What you are seeing I think are statements for legacy OS's that will not be able to take over 2TB, like windows in most modes. From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of Aaron Stranberg Sent: Friday, July 20, 2007 3:22 PM To: [email protected] Subject: [OF-users] System spec and OF research - 3ware 9650e tyan 2892 16500GB sata drives - 2GB memory All, Continuing my OF research, are there any known limittations with volme sizes or physical disk sizes/numbers? We are reviewing a system with 16 500GB sata drives, a 3ware 9650E controller card http://www.3ware.com/products/pdf/9650SE_DS_101106.pdf , and a dual opteron 270 system with 2gig of memory tyan s2892 MB. I intend on striping 10 of these drives with raid 10 for VMware and the other 6 with raid 6 for disk to disk backups, which sould provide around 2.5TB of storage for use in vmware and 2.5TB for disk to disk backups. I have read that the card will present 1 2tb disk and one 500GB disk to the OS in this situation where a single device is over 2TB, and then I will chop those up into some smaller volumes as needed. Anyone have experience with a similar set up, any known issues with the raid card or MB and OF, also any limitations I may hit with the amount of storage I am looking at? Also how does OF use system memory, will it rely on my Raid Card cache primariy or do I need to stack in a lot of memroy for best performace? Thanks for any advice or related experiences. -Aaron ------------------------------------------------------------------------------ _______________________________________________ Openfiler-users mailing list [email protected] https://lists.openfiler.com/mailman/listinfo/openfiler-users
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