On Thursday, 30.11.2006 at 16:56 +0100, Matus UHLAR - fantomas wrote: > On 30.11.06 15:44, Johannes Wiedersich wrote: > > Preparing to buy a new server... > > > > What is debian's opinion about hardware/software raid? > > > > I have the feeling that software raid 1 is more reliable since if > > anything goes wrong with the hardware, I could just take one or two > > disks out of the server and put them into a workstation to get up and > > running or copy data of the disks for the time until the hardware gets > > fixed. > > 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. 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. Part of your decision must rest on what exactly the machine will be doing. Different RAID setups are best suited for different usage patterns, e.g. RAID-5 is often a good general-purpose storage server option, RAID-10 is usually recommended for database servers, etc. Dave. -- Please don't CC me on list messages! ... Dave Ewart - davee@sungate.co.uk - jabber: davee@jabber.org All email from me is now digitally signed, key from http://www.sungate.co.uk/ Fingerprint: AEC5 9360 0A35 7F66 66E9 82E4 9E10 6769 CD28 DA92
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