> > On 30.11.06 15:44, Johannes Wiedersich wrote: > > > What is debian's opinion about hardware/software raid?
> On Thursday, 30.11.2006 at 16:56 +0100, Matus UHLAR - fantomas wrote: > > it highly depends on the hardware raid. The true hardware RAID with > > hotspare, hotswap etc. support and with proper drivers (so you won't have to > > boot into its bios to reconfigure it) will be much more reliable. > > > > > On the other hand, performance will probably be better with a dedicated > > > hardware raid controller. > > > > it highly depends on the hardware raid. The true hardware RAID with XOR > > counting and mirroring support will be much faster. On 30.11.06 16:01, Dave Ewart wrote: > Although it's worth pointing out that software RAID-*1* (one of the > options under consideration) has almost no CPU overhead, and is often a > good low-cost option. I did not want to mention this, because: - software RAID-1 has bus overhead (the same data have to be transferred multiple times to multiple drives, so writing may be twice as slow) - software RAID-1 has high CPU and bus overhead in case of resyncing after disk outage (hw raid does that itself) -- Matus UHLAR - fantomas, [EMAIL PROTECTED] ; http://www.fantomas.sk/ Warning: I wish NOT to receive e-mail advertising to this address. Varovanie: na tuto adresu chcem NEDOSTAVAT akukolvek reklamnu postu. A day without sunshine is like, night. -- To UNSUBSCRIBE, email to [EMAIL PROTECTED] with a subject of "unsubscribe". Trouble? Contact [EMAIL PROTECTED]