reading again... should you use a good ups system with information about % of batery, like a notebook? read/write cache can be change with async or sync options on filesystem mount batery support is done with ups system maybe with some time of use (10 years) the baterry of you ramdisk should be replaced, will you replace it? is easier replace a ups batery or a ramdisk specific batery? check at internet about 12vdc atx power supply, and use a charger and a car batery to supply power to your computer, it's a very nice solution =) 2011/1/19 Roberto Spadim <roberto@xxxxxxxxxxxxx>: > i think that is a fileystem cache > not a md raid cache > i'm right? > > 2011/1/19 Cory Coager <ccoager@xxxxxxxxx>: >> I was wondering if it would be possible to add support for specifying a >> device to use for read/write persistent cache. The reason why I'm asking is >> because I see physical ram disks with battery backups available recently. >> These ram disks are relatively cheap and could add great performance for >> write through without the fear of data loss. >> >> Any interest in adding support for this? >> -- >> 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 >> > > > > -- > Roberto Spadim > Spadim Technology / SPAEmpresarial > -- Roberto Spadim Spadim Technology / SPAEmpresarial -- 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