On 20/05/2011 03:08, Andy Smith wrote: > Are there actually any HBAs that have BBU without using their RAID > features? > > I'd like to stop using hardware RAID but I can't give up the BBU and > write cache. This is a very interesting question. Does anyone know if say the Areca ARC-1880ix-24 can be used in the same way, ie battery backed JBOD type mode? I received a recommendation offlist that the various 3Ware SAS 9750-xx cards can be used easily as a bunch of single drives, however, comparing the photos of these with the LSI MegaRAID 9280-xx they seem identical? (Presumed to be identical?). Anyone know why LSI sell an identical card under the 3ware brand (still)? Curiously I see the LSI generally selling a little cheaper than the 3ware in the uk... (wierd) Are there any cards to avoid because they *can't* be used in this way? eg Dell PERC6 seem to come up cheaply on ebay - can these be used as BBU backed single JBOD controllers? I guess the limitation is that some of these cards can only create a small number of arrays and/or they don't use their writeback cache efficiently in the case of multiple arrays? Thanks for any education here. (I found a cheap Areca on ebay, plus been eyeing up the various cheap Dell PERC cards...) Ed W -- To unsubscribe from this list: send the line "unsubscribe linux-raid" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
