SH> As John mentioned the TX4 BIOS/firmware shouldn't be an issue. This is SH> a 48bit LBA controller and theoretically can access a single disk drive SH> of up to 144PB in size. this is the information I was hoping for ;-) sounds good. SH> This is the cause of the 2TB drive size limit you read about all over SH> the web. If you have a 64bit kernel with an LBA48 controller (most are) SH> then this shouldn't be an issue, as all 48 LBA bits are addressable by a SH> 64bit kernel. With a 64bit kernel, if the TX4 doesn't give you all 3TB SH> per drive, then there's a driver or firmware bug present. both systems are running CentOS5 with a recent 64bit kernel, so this shouldn't be a problem. SH> Assuming the hot swap bays in the chassis are indeed SATA/SAS and not SH> SCSI/SCA, then your best, least expensive, solution is the SuperMicro SH> AOC-SAT2-MV8 64-bit PCI-X133MHz: ordered one on ebay yesterday, really looking forward to receiving it :) SH> You provided no details of the chassis or backplane(s) or I could tell SH> you which, if any, reverse breakout cables you need. If the SH> backplane(s) have 8 cable connectors you're golden. If they have SH> 2xSFF8087 connections then you'll need two reverse breakout cables. this second-hand server was originally equipped with an U320 scsi backplane which I removed. by this the hotswap capability is lost, the drives will be directly connected to the AOC-SAT2-MV8 controller, I can live with that. nonetheless it would be nice to have a SATA backplane, but by googling I couldn't find one that fits into this chassis (blue/white AVANTEK). tnx. -- rainer -- 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