> >Am I wrong? Or is there some cool way to make hw raid5 work across two > >controllers? > > If you use 3Ware BIOS based RAID it will not span over controllers. > If you use Linux software RAID ( see mdadm - Neil Brown) it is easy to span > up to 4 3Ware cards, and gives significantly better RAID5 performance. > Added benefit is much better I/O performance as well.. Would I want to keep the 3ware cards in jbod mode, then? Spending 2/8 disks on parity isn't exactly great, if I went the 2*raid5 route, striping or concatenating them together... Actually, even that might be quite tolerable... Any suggestions about configuration with 2x4-port cards, then? > > > > With our best regards, > > Maurice W. Hilarius Telephone: 01-780-456-9771 > Hard Data Ltd. FAX: 01-780-456-9772 > 11060 - 166 Avenue mailto:maurice@xxxxxxxxxxxx > Edmonton, AB, Canada http://www.harddata.com/ > T5X 1Y3 > > > _______________________________________________ > > Ataraid-list@xxxxxxxxxx > https://www.redhat.com/mailman/listinfo/ataraid-list > =-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=- | Jason Marshall, marshalj@xxxxxxxxxxxx Spots InterConnect, Inc. Calgary, AB | =-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-
