On Mon, Mar 3, 2008 at 6:47 PM, Adam Goryachev <[EMAIL PROTECTED]> wrote: > So would it then make sense for a backuppc data partition to use a > smaller stripe size since most writes will be very small?
Yes, if you're using RAID5. Doing some benchmarking would help find the "sweet spot". > > Having battery backed RAM on the RAID controller can help, because the > > controller can lie to the OS and say the data is written to disk > > immediately instead of waiting for an read-calculate-write cycle, > > since it's sure that if it does lose power, it can store the data that > > should be written to disk later when power is restored in addition to > > buffering the reads/writes so that it can reorder them to reduce the > > amount of seeking required. > > Is it possible to instruct linux to use it's memory to do this? If you > have a UPS and feel that it is pretty unlikely to crash, you might be > happy to get this kind of speed improvement. Yes, it's possible to tune Linux to do this as well. To get some ideas, look at the "large archives and scalability issues" thread, this exact subject just came up in the past couple days. Be warned, the thread is very long. -Dave ------------------------------------------------------------------------- This SF.net email is sponsored by: Microsoft Defy all challenges. Microsoft(R) Visual Studio 2008. http://clk.atdmt.com/MRT/go/vse0120000070mrt/direct/01/ _______________________________________________ BackupPC-users mailing list [email protected] List: https://lists.sourceforge.net/lists/listinfo/backuppc-users Wiki: http://backuppc.wiki.sourceforge.net Project: http://backuppc.sourceforge.net/
